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srt:AmericasMember 2025-03-31 2025-06-29 0000097210 us-gaap:ForeignExchangeOptionMember 2026-01-01 2026-06-28 0000097210 us-gaap:EmployeeStockOptionMember 2026-01-01 2026-06-28 0000097210 ter:MemoryMember ter:SemiconductorTestMember 2025-03-31 2025-06-29 0000097210 currency:CNY 2025-12-31 0000097210 us-gaap:CashMember us-gaap:FairValueMeasurementsRecurringMember 2025-12-31 0000097210 us-gaap:ForeignExchangeOptionMember 2026-03-30 2026-06-28 0000097210 srt:AmericasMember ter:MemoryMember ter:SemiconductorTestMember 2025-03-31 2025-06-29 iso4217:EUR xbrli:pure ter:HeadCount xbrli:shares ter:Segment iso4217:USD xbrli:shares iso4217:USD   UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549     FORM 10-Q     (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934   For the quarterly period ended June 28, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934   For the transition period from ________ to ________ Commission File No. 001-06462     TERADYNE, INC. (Exact name of registrant as specified in its charter)     Massachusetts 04-2272148 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification No.)   600 Riverpark Drive , North Reading , Massachusetts 01864 (Address of Principal Executive Offices) (Zip Code) 978 - 370-2700 (Registrant’s Telephone Number, Including Area Code)     Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock , par value $0.125 per share   TER   Nasdaq Stock Market LLC Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to the filing requirements for the past 90 days. Yes ☒ No ☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files) Yes ☒ No ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act (check one):   Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Emerging growth company ☐   Smaller reporting company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒ The number of shares outstanding of the registrant’s only class of Common Stock as of July 27, 2026 , was 156,340,750 shar es.       TERADYNE, INC. INDEX Page No. PART I. FINANCIAL INFORMATION Item 1. Financial Statements (Unaudited): 1   Condensed Consolidated Balance Sheets as of June 28, 2026, and December 31, 2025 1   Condensed Consolidated Statements of Operations for the Three and Six Months Ended June 28, 2026, and June 29, 2025 2   Condensed Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 28, 2026, and June 29, 2025 3   Condensed Consolidated Statements of Equity for the Three and Six Months Ended June 28, 2026, and June 29, 2025 4     Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 28, 2026, and June 29, 2025 5   Notes to Condensed Consolidated Financial Statements 6   Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations 29   Item 3. Quantitative and Qualitative Disclosures about Market Risk 39   Item 4. Controls and Procedures 39   PART II. OTHER INFORMATION     Item 1. Legal Proceedings 40   Item 1A. Risk Factors 40   Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 41   Item 4. Mine Safety Disclosures 41   Item 5. Other Information 42   Item 6. Exhibits 43       PART I Item 1: Financial Statements TERADYNE, INC. CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)       June 28, 2026     December 31, 2025       (in thousands, except per share amount)   ASSETS             Current assets:             Cash and cash equivalents   $ 349,538     $ 293,751   Marketable securities     5,291       28,247   Accounts receivable, less allowance for credit losses of $ 2,835  and $ 2,410  at June 28, 2026    and December 31, 2025, respectively     1,109,711       786,913   Inventories, net     403,297       379,552   Prepayments     468,174       427,564   Other current assets     30,011       33,273   Total current assets     2,366,022       1,949,300   Property, plant and equipment, net     634,839       562,999   Operating lease right-of-use assets, net     94,302       76,635   Marketable securities     162,274       126,256   Deferred tax assets     289,582       275,265   Retirement plans assets     12,140       12,059   Equity method investment     514,957       537,098   Other assets     85,774       71,697   Acquired intangible assets, net     101,910       51,271   Goodwill     663,817       521,019   Total assets   $ 4,925,617     $ 4,183,599   LIABILITIES             Current liabilities:             Accounts payable   $ 383,422     $ 269,185   Accrued employees’ compensation and withholdings     220,690       254,973   Deferred revenue and customer advances     193,840       153,124   Other accrued liabilities     133,399       111,845   Operating lease liabilities     17,258       19,340   Short-term debt     —       200,000   Income taxes payable     164,907       106,740   Total current liabilities     1,113,516       1,115,207   Retirement plans liabilities     151,436       144,874   Long-term deferred revenue and customer advances     62,985       50,888   Deferred tax liabilities     12,929       5,378   Long-term other accrued liabilities     28,569       7,601   Long-term operating lease liabilities     82,869       63,899   Total liabilities     1,452,304       1,387,847   Commitments and contingencies (Note R)             EQUITY             Common stock, $ 0.125  par value, 1,000,000  shares authorized; 156,378  and 156,088  shares issued    and outstanding at June 28, 2026, and December 31, 2025, respectively     19,547       19,511   Additional paid-in capital     2,003,232       1,989,911   Accumulated other comprehensive loss (gain)     10,756       41,895   Retained earnings     1,403,627       744,435   Total Teradyne shareholders’ equity     3,437,162       2,795,752   Equity attributable to noncontrolling interests     36,151       —   Total equity     3,473,313       2,795,752   Total liabilities and equity   $ 4,925,617     $ 4,183,599     The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements. 1   TERADYNE, INC. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands, except per share amount)     (in thousands, except per share amount)   Revenues:                         Products   $ 1,191,327     $ 522,657     $ 2,334,298     $ 1,084,614   Services     137,663       129,140       277,186       252,863   Total revenues     1,328,990       651,797       2,611,484       1,337,477   Cost of revenues:                         Cost of products     487,221       232,422       940,667       456,564   Cost of services     47,151       46,363       95,249       92,564   Total cost of revenues (exclusive of acquired intangible    assets amortization shown separately below)     534,372       278,785       1,035,916       549,128   Gross profit     794,618       373,012       1,575,568       788,349   Operating expenses:                         Selling and administrative     192,520       157,782       359,257       315,039   Engineering and development     156,284       118,382       291,845       236,570   Acquired intangible assets amortization     4,972       3,733       7,196       8,306   Restructuring and other     3,032       2,372       6,457       16,887   Total operating expenses     356,808       282,269       664,755       576,802   Income from operations     437,810       90,743       910,813       211,547   Non-operating (income) expense:                         Interest income     ( 3,182 )     ( 4,351 )     ( 5,604 )     ( 9,427 ) Interest expense     2,964       805       6,115       1,600   Other (income) expense, net     ( 5,591 )     ( 2,270 )     1,006       3,790   Income before income taxes and equity in net earnings of affiliate     443,619       96,559       909,296       215,584   Income tax provision     66,788       12,260       128,945       26,804   Income before equity in net earnings of affiliate     376,831       84,299       780,351       188,780   Equity in net earnings of affiliate     ( 1,946 )     ( 5,927 )     ( 6,557 )     ( 11,511 ) Consolidated net income     374,885       78,372       773,794       177,269   Less: Net income attributable to noncontrolling interests     352       —       352       —   Net income attributable to Teradyne   $ 374,533     $ 78,372     $ 773,442     $ 177,269                             Earnings per common share attributable to Teradyne:                         Basic   $ 2.39     $ 0.49     $ 4.94     $ 1.10   Diluted   $ 2.38     $ 0.49     $ 4.91     $ 1.10   Weighted average common shares—basic     156,470       159,967       156,440       160,734   Weighted average common shares—diluted     157,693       160,135       157,664       161,065     The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements. 2   TERADYNE, INC. CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands)     (in thousands)   Consolidated net income   $ 374,885     $ 78,372     $ 773,794     $ 177,269   Other comprehensive income (loss), net of tax:                         Foreign currency translation adjustment, net of tax of $ 0 , $ 0 , $ 0 , and $ 0 , respectively     ( 11,444 )     82,997       ( 31,377 )     122,316   Available-for-sale marketable securities:                         Unrealized (losses) gains on marketable securities arising during period, net of tax of $ 176 , $( 17 ), $( 68 ), and $ 115 , respectively     1,767       ( 35 )     227       585   Less: Reclassification adjustment for (gains) losses included in net income, net of tax of $ 16 , $ 6 , $ 12 , $ 27 , respectively     55       15       13       89       1,822       ( 20 )     240       674   Cash flow hedges:                         Unrealized (losses) gains arising during period, net of tax of $ 0 , $( 51 ), $ 0 , and $( 109 ), respectively     —       ( 179 )     —       ( 381 ) Less: Reclassification adjustment for losses (gains) included in net income, net of tax of $ 0 , $ 66 , $ 0 , and $( 100 ), respectively     —       232       —       ( 350 )     —       53       —       ( 731 ) Defined benefit post-retirement plan:                         Amortization of prior service credit, net of tax of $ 0 , $ 0 , $( 1 ), and $( 1 ), respectively     ( 1 )     ( 2 )     ( 2 )     ( 3 ) Other comprehensive income (loss)     ( 9,623 )     83,028       ( 31,139 )     122,256   Consolidated comprehensive income   $ 365,262     $ 161,400     $ 742,655     $ 299,525   Less: comprehensive income attributable to noncontrolling interests     352       —       352       —   Total comprehensive income attributable to Teradyne   $ 364,910     $ 161,400     $ 742,303     $ 299,525     The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements. 3   TERADYNE, INC. CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited)       Teradyne Shareholders                   Common Stock Shares     Common Stock Par Value     Additional Paid-in Capital     Accumulated Other Comprehensive Income (Loss)     Retained Earnings     Total Teradyne Shareholders’ Equity     Equity attributable to noncontrolling interests     Total Equity       (in thousands)   For the Three Months Ended June 28, 2026   Balance, March 29, 2026     156,540     $ 19,568     $ 1,986,089     $ 20,379     $ 1,117,780     $ 3,143,816     $ —     $ 3,143,816   Net issuance of common stock under stock-based plans     31       4       ( 1,680 )                 ( 1,676 )           ( 1,676 ) Stock-based compensation expense                 18,823                   18,823             18,823   Repurchase of common stock     ( 193 )     ( 25 )                 ( 68,338 )     ( 68,363 )           ( 68,363 ) Cash dividends ($ 0.13  per share)                             ( 20,348 )     ( 20,348 )           ( 20,348 ) Consolidated net income                             374,533       374,533       352       374,885   Other comprehensive income (loss)                       ( 9,623 )           ( 9,623 )           ( 9,623 ) Acquisition of noncontrolling interest                                   —       35,799       35,799   Balance, June 28, 2026     156,378       19,547       2,003,232       10,756       1,403,627       3,437,162       36,151       3,473,313   For the Three Months Ended June 29, 2025                                                 Balance, March 30, 2025     160,674     $ 20,084     $ 1,926,180     $ ( 41,992 )   $ 893,227     $ 2,797,499     $ —     $ 2,797,499   Net issuance of common stock under stock-based plans     16       2       ( 231 )                 ( 229 )           ( 229 ) Stock-based compensation expense                 15,552                   15,552             15,552   Repurchase of common stock     ( 1,480 )     ( 185 )                 ( 117,550 )     ( 117,735 )           ( 117,735 ) Cash dividends ($ 0.12  per share)                             ( 19,186 )     ( 19,186 )           ( 19,186 ) Net income                             78,372       78,372             78,372   Other comprehensive income (loss)                       83,028             83,028             83,028   Balance, June 29, 2025     159,210     $ 19,901     $ 1,941,501     $ 41,036     $ 834,863     $ 2,837,301     $ —     $ 2,837,301         Teradyne Shareholders                   Common Stock Shares     Common Stock Par Value     Additional Paid-in Capital     Accumulated Other Comprehensive Income (Loss)     Retained Earnings     Total Teradyne Shareholders’ Equity     Equity attributable to noncontrolling interests     Total Equity       (in thousands)   For the Six Months Ended June 28, 2026   Balance, December 31, 2025     156,088     $ 19,511     $ 1,989,911     $ 41,895     $ 744,435     $ 2,795,752     $ —     $ 2,795,752   Net issuance of common stock under stock-based plans     507       63       ( 26,151 )                 ( 26,088 )           ( 26,088 ) Stock-based compensation expense                 39,472                   39,472             39,472   Repurchase of common stock     ( 217 )     ( 27 )                 ( 73,540 )     ( 73,567 )           ( 73,567 ) Cash dividends ($ 0.26  per share)                             ( 40,710 )     ( 40,710 )           ( 40,710 ) Consolidated net income                             773,442       773,442       352       773,794   Other comprehensive income (loss)                       ( 31,139 )           ( 31,139 )           ( 31,139 ) Acquisition of noncontrolling interest                                   —       35,799       35,799   Balance, June 28, 2026   $ 156,378     $ 19,547     $ 2,003,232     $ 10,756     $ 1,403,627     $ 3,437,162     $ 36,151     $ 3,473,313   For the Six Months Ended June 29, 2025   Balance, December 31, 2024     161,722     $ 20,215     $ 1,909,538     $ ( 81,220 )   $ 970,761     $ 2,819,294     $ —     $ 2,819,294   Net issuance of common stock under stock-based plans     448       56       ( 218 )                 ( 162 )           ( 162 ) Stock-based compensation expense                 32,181                   32,181             32,181   Warrant exercises                                   —             —   Repurchase of common stock     ( 2,960 )     ( 370 )                 ( 274,567 )     ( 274,937 )           ( 274,937 ) Cash dividends ($ 0.24  per share)                             ( 38,600 )     ( 38,600 )           ( 38,600 ) Net income                             177,269       177,269       —       177,269   Other comprehensive income (loss)                       122,256             122,256             122,256   Balance, June 29, 2025     159,210     $ 19,901     $ 1,941,501     $ 41,036     $ 834,863     $ 2,837,301     $ —     $ 2,837,301     The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements. 4   TERADYNE, INC. CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)       For the Six Months  Ended       June 28, 2026     June 29, 2025       (in thousands)   Cash flows from operating activities:             Consolidated net income   $ 773,794     $ 177,269   Adjustments to reconcile consolidated net income from operations to net cash provided by operating activities:             Depreciation     58,884       52,835   Stock-based compensation     41,964       32,031   Equity in net earnings of affiliate     6,557       11,511   Losses (gains) on investments     ( 4,923 )     ( 1,078 ) Provision for excess and obsolete inventory     8,281       12,347   Amortization     7,421       8,856   Deferred taxes     ( 18,230 )     ( 14,998 ) Retirement plan actuarial losses (gains)     ( 157 )     127   Other     2,760       3,168   Changes in operating assets and liabilities, net of businesses acquired:             Accounts receivable     ( 302,176 )     49,496   Inventories     ( 7,852 )     ( 23,707 ) Prepayments and other assets     ( 59,621 )     30,879   Accounts payable and other liabilities     121,803       17,135   Deferred revenue and customer advances     50,863       13,056   Retirement plans contributions     ( 3,098 )     ( 5,576 ) Income taxes     57,992       ( 19,625 ) Net cash provided by operating activities     734,262       343,726   Cash flows from investing activities:             Purchases of property, plant and equipment     ( 155,439 )     ( 114,429 ) Acquisition of businesses, net of cash and cash equivalents acquired     ( 165,611 )     ( 144,380 ) Purchase of investment in a business     ( 10,030 )     ( 5,368 ) Purchases of marketable securities     ( 48,235 )     ( 17,150 ) Proceeds from maturities of marketable securities     11,069       32,603   Proceeds from sales of marketable securities     29,615       8,487   Net cash used for investing activities     ( 338,631 )     ( 240,237 ) Cash flows from financing activities:             Proceeds from borrowings on revolving credit facility     350,000       —   Repayments of borrowings on revolving credit facility     ( 550,000 )     —   Dividend payments     ( 40,710 )     ( 38,584 ) Repurchase of common stock     ( 74,238 )     ( 274,873 ) Payments related to net settlement of employee stock compensation awards     ( 41,113 )     ( 14,954 ) Issuance of common stock under stock purchase and stock option plans     15,101       14,792   Net cash used for financing activities     ( 340,960 )     ( 313,619 ) Effects of exchange rate changes on cash and cash equivalents     1,116       ( 3,972 ) (Decrease) increase in cash and cash equivalents     55,787       ( 214,102 ) Cash and cash equivalents at beginning of period     293,751       553,354   Cash and cash equivalents at end of period   $ 349,538     $ 339,252   Non-cash investing activities:             Capital expenditures incurred but not yet paid:   $ 9,791     $ 4,722     The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2025, are an integral part of the condensed consolidated financial statements. 5   TERADYNE, INC. NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) A. THE COMPANY Teradyne, Inc. (“Teradyne”) is a leading global provider of automated test equipment and robotics solutions. Teradyne’s automated test systems are used to test semiconductors, wireless products, data storage, silicon photonics, and complex electronics systems in many industries including consumer electronics, automotive, industrial, computing, communications, and defense and aerospace industries. Teradyne’s robotics product offerings consist primarily of collaborative robotic arms and autonomous mobile robots used by global manufacturing, logistics and industrial customers to improve quality and increase manufacturing and material handling efficiency while reducing costs. Teradyne’s automated test equipment and robotics products and services include: • semiconductor test (“Semiconductor Test”) systems and instruments; • product test ("Product Test") systems and instruments; and • robotics (“Robotics”) products. B. ACCOUNTING POLICIES Basis of Presentation The condensed consolidated interim financial statements include the accounts of Teradyne, its wholly owned subsidiaries, and all other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated. These condensed consolidated interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such condensed consolidated interim financial statements. The December 31, 2025, condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by United States of America generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on February 19, 2026, for the year ended December 31, 2025 . Preparation of Financial Statements and Use of Estimates The preparation of consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities. On an on-going basis, management evaluates its estimates, including those related to inventories, investments, goodwill, intangible and other long-lived assets, accounts receivable, income taxes, deferred tax assets and liabilities, pensions, warranties, and loss contingencies. Management bases its estimates on historical experience and on appropriate and customary assumptions that are believed to be reasonable under the circumstances, which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Management is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change, as new events occur and additional information is obtained. Actual results may differ significantly from these estimates under different assumptions or conditions. Noncontrolling Interests Teradyne accounts for investments with noncontrolling interests in accordance with Accounting Standards Codification (“ASC”) 810 “Consolidation.” Noncontrolling interests represent the third-party ownership not attributable, directly or indirectly, to Teradyne, and is presented separately from total Teradyne shareholder’s equity on the condensed consolidated financial statements. Net income (loss) of MLTP is allocated between Teradyne and the noncontrolling interests in an amount proportional to each party’s ownership share. Net income attributable to noncontrolling interests is presented separately from net income attributable to Teradyne on the condensed consolidated financial statements.   C. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-03 - “ Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): 6   Disaggregation of Income Statement Expenses, ” which requires disclosure of additional expense information on an annual and interim basis, including the amounts of inventory purchases, employee compensation, depreciation, and intangible asset amortization included within each income statement expense caption. This standard is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. Teradyne is currently evaluating the impact of this new standard . D. ACQUISITIONS MultiLane Test Products On April 8, 2026, Teradyne and HTP Holding SAL (“MultiLane”) formed a joint venture, MultiLane Test Products Holding LLP (“MLTP”), in which Teradyne holds a controlling 75 % ownership interest, with the remaining 25 % attributable to noncontrolling interests, for a total purchase price of $ 157.8 million, subject to customary post-closing adjustments. MLTP is expected to serve the growing demand from the AI Data Center equipment market by accelerating the development of test solutions for critical high speed data connections. The fair value of the noncontrolling interests was estimated to be $ 35.8 million based on the noncontrolling interest holders’ proportionate ownership of MLTP, adjusted to reflect the lack of control and marketability characteristics of the interest. Teradyne’s total allocation of the purchase price was goodwill of $ 131.6 million, which is not deductible for tax purposes, acquired intangible assets of $ 46.7 million with a weighted average estimated useful life of  4.7 years, and $ 15.3 million of net tangible assets. The goodwill is attributable to cost synergies, assembled workforce and anticipated incremental revenue streams. Teradyne’s estimates, assumptions, and tax impacts used in determining the estimated fair values of certain assets, liabilities, and the noncontrolling interests are subject to change within the measurement period (up to twelve months from the acquisition date) as a result of additional information obtained with regards to facts and circumstances that existed as of the acquisition date. The results of MLTP have been included in Teradyne’s Product Test segment from the date of acquisition. Based upon a preliminary valuation, the total purchase price was allocated as follows:     Purchase Price Allocation       (in thousands)   Goodwill   $ 131,634   Intangible assets     46,700   Tangible assets acquired and liabilities assumed:       Current assets     23,616   Other non-current assets     790   Accounts payable and current liabilities     ( 980 ) Long-term deferred tax liabilities     ( 7,939 ) Other long-term liabilities     ( 183 ) Noncontrolling interests     ( 35,799 ) Total purchase price   $ 157,839     Teradyne estimated the fair value of intangible assets using the income approach. The fair value of developed technology was estimated using the Multi-Period Excess Earnings Method. Acquired intangible assets are amortized on a straight-line basis over their estimated useful lives. Components of these intangible assets and their estimated useful lives at the acquisition date are as follows:       Fair Value     Estimated Useful Life       (in thousands)     (in years)   Developed technology   $ 40,900       4.0   Customer relationships     5,800       10.0   Total Intangible assets   $ 46,700       4.7     Teradyne has not separately disclosed MLTP’s standalone contribution to total company revenue or income from operations before income taxes or pro forma financial information as the impact of the acquisition on the condensed consolidated financial statements is not material.   Quantifi Photonics On May 31, 2025 , Teradyne acquired all of the issued and outstanding shares of Quantifi Photonics (“Quantifi”), a privately held company in New Zealand and a leader in photonic integrated circuit (“PIC”) test solutions for a total purchase price of $ 127.2 million. The acquisition of Quantifi enables Teradyne to deliver scalable PIC test solutions. Teradyne’s allocation of the purchase 7   price was goodwill of $ 83.1 million, which is not deductible for tax purposes, acquired intangible assets of $ 43.6 million with a weighted average estimated useful life of 10.0 years, and $ 0.6 million of net tangible assets. The goodwill is attributable to cost synergies, assembled workforce and anticipated incremental revenue streams. The fair values of the tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The results of Quantifi have been included in Teradyne’s Product Test segment from the date of acquisition. The total purchase price was allocated as follows:       Purchase Price Allocation       (in thousands)   Goodwill   $ 83,068   Intangible Assets     43,600   Tangible assets acquired and liabilities assumed:       Current assets     6,148   Long-term deferred tax assets     6,271   Other non-current assets     2,516   Accounts payable and current liabilities     ( 1,609 ) Long-term deferred tax liabilities     ( 12,208 ) Other long-term liabilities     ( 548 ) Total purchase price   $ 127,238   Teradyne estimated the fair value of intangible assets using the income and cost approaches. The fair value of developed technology was estimated using the Multi-Period Excess Earnings Method. Acquired intangible assets are amortized on a straight-line basis over their estimated useful lives. Components of these intangible assets and their estimated useful lives at the acquisition date are as follows:       Fair Value     Estimated Useful Life       (in thousands)     (in years)   Developed technology   $ 38,600       10.0   Trademarks and tradenames     4,400       10.0   Customer relationships     600       8.0   Total Intangible Assets   $ 43,600       10.0   Teradyne has not separately disclosed Quantifi’s standalone contribution to total company revenue or income from operations before income taxes or pro forma financial information because the impact of the acquisition on the condensed consolidated financial statements is not material. Automated Test Equipment Technology On January 31, 2025 , Teradyne acquired from Infineon Technologies AG (“Infineon”) its automated test equipment technology and associated development team (“AET”) based in Regensburg, Germany for a total purchase price of 17.6 million Euros, equivalent to $ 18.3 million, subject to customary adjustments. AET adds resources and expertise to Teradyne and strengthens the relationship between Teradyne and Infineon. The AET acquisition was accounted for as a business combination and, accordingly, the results have been included in Teradyne’s Semiconductor Test segment from the date of acquisition. As of the acquisition date, Teradyne’s purchase price allocation was goodwill of $ 1.3 million for expected synergies from combining operations, acquired intangible assets of $ 6.4 million, consisting of developed technology and customer relationships, with a weighted average estimated useful life of 4.6 years, and $ 10.7 million of net tangible assets, including $ 11.7 million of inventory. The fair values of the tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The acquisition was not material to Teradyne’s condensed consolidated financial statements. E. REVENUE Disaggregation of Revenue The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines. 8         Semiconductor Test     Robotics     Product Test     Total       System on-a-Chip     Memory     IST                       (in thousands)   For the Three Months Ended June 28, 2026   Timing of Revenue Recognition                                     Point in Time   $ 771,416     $ 199,765     $ 60,562     $ 97,169     $ 90,538     $ 1,219,450   Over Time     71,555       12,568       5,959       2,748       16,710       109,540   Total   $ 842,971     $ 212,333     $ 66,521     $ 99,917     $ 107,248     $ 1,328,990   Geographical Market                                     Asia Pacific   $ 814,023     $ 210,830     $ 65,578     $ 21,576     $ 46,859     $ 1,158,866   Americas     14,908       941       943       41,751       51,036       109,579   Europe, Middle East and Africa     14,040       562       —       36,590       9,353       60,545   Total   $ 842,971     $ 212,333     $ 66,521     $ 99,917     $ 107,248     $ 1,328,990                                       For the Three Months Ended June 29, 2025   Timing of Revenue Recognition                                     Point in Time   $ 325,588     $ 51,993     $ 28,827     $ 72,724     $ 66,159     $ 545,291   Over Time     71,000       8,950       5,520       2,142       18,894       106,506   Total   $ 396,588     $ 60,943     $ 34,347     $ 74,866     $ 85,053     $ 651,797   Geographical Market                                     Asia Pacific   $ 364,883     $ 58,467     $ 32,468     $ 15,939     $ 34,901     $ 506,658   Americas     15,920       2,077       1,879       27,160       42,229       89,265   Europe, Middle East and Africa     15,785       399       —       31,767       7,923       55,874   Total   $ 396,588     $ 60,943     $ 34,347     $ 74,866     $ 85,053     $ 651,797                                       For the Six Months Ended June 28, 2026   Timing of Revenue Recognition                                     Point in Time   $ 1,579,520     $ 393,487     $ 79,328     $ 185,929     $ 152,453     $ 2,390,717   Over Time     145,260       21,294       13,737       5,246       35,230       220,767   Total   $ 1,724,780     $ 414,781     $ 93,065     $ 191,175     $ 187,683     $ 2,611,484   Geographical Market                                     Asia Pacific   $ 1,629,426     $ 405,887     $ 90,171     $ 38,522     $ 71,547     $ 2,235,553   Americas     31,953       7,779       2,894       82,273       98,559       223,458   Europe, Middle East and Africa     63,401       1,115       —       70,380       17,577       152,473   Total   $ 1,724,780     $ 414,781     $ 93,065     $ 191,175     $ 187,683     $ 2,611,484                                       For the Six Months Ended June 29, 2025   Timing of Revenue Recognition                                     Point in Time   $ 663,278     $ 153,656     $ 51,719     $ 139,870     $ 122,717     $ 1,131,240   Over Time     139,700       16,695       9,334       3,983       36,525       206,237   Total   $ 802,978     $ 170,351     $ 61,053     $ 143,853     $ 159,242     $ 1,337,477   Geographical Market                                     Asia Pacific   $ 722,985     $ 166,149     $ 58,484     $ 31,001     $ 60,447     $ 1,039,066   Americas     50,972       2,994       2,569       59,631       83,014       199,180   Europe, Middle East and Africa     29,021       1,208       —       53,221       15,781       99,231   Total   $ 802,978     $ 170,351     $ 61,053     $ 143,853     $ 159,242     $ 1,337,477   Contract Balances During the three and six months ended June 28, 2026, Teradyne recognized $ 34.9 million and $ 103.5 million, respectively, that were included within the deferred revenue and customer advances balances at the beginning of the period. During the three and six months ended June 29, 2025, Teradyne recognized $ 22.2 million and $ 47.5 million, respectively, that were included within the deferred revenue and customer advances balances at the beginning of the period. This revenue primarily relates to undelivered hardware, extended warranties, training, application support, and post contract support. Each of these represents a distinct performance obligation. As of June 28, 2026, Teradyne had $ 130.2 million of unsatisfied performance obligations with an original duration of greater than one year, of which 51 % is expected to be recognized as revenue within the next twelve months . Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet: 9         June 28, 2026     December 31, 2025       (in thousands)   Maintenance, service and training   $ 60,663     $ 62,337   Customer advances, undelivered elements and other     118,038       85,762   Extended warranty     78,124       55,913   Total deferred revenue and customer advances   $ 256,825     $ 204,012     F. EQUITY METHOD INVESTMENTS On May 27, 2024, Teradyne paid 483.1 million Euros, equivalent to $ 524.1 million, to purchase a combination of previously issued and outstanding shares and shares newly issued by Technoprobe, S.p.A. (“Technoprobe ” ). The shares purchased represent 10 % of the issued and outstanding shares of Technoprobe. Teradyne also received a board seat as part of the purchase. Teradyne accounts for this investment using the equity method as a result of being able to exercise significant influence over the operating and financial decisions of Technoprobe . The following table summarizes the change in the carrying value of our equity method investment:       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands)   Balance at beginning of period   $ 522,583     $ 509,626     $ 537,098     $ 494,494   Other comprehensive income related to investment     ( 5,680 )     41,715       ( 15,584 )     62,431   Equity in net earnings of affiliate     ( 1,946 )     ( 5,927 )     ( 6,557 )     ( 11,511 ) Balance at end of period   $ 514,957     $ 545,414     $ 514,957     $ 545,414   Based on the quoted closing price of Technoprobe stock as of June 28, 2026, the fair value of the publicly traded investment was $ 2,457.9 million . Teradyne’s equity method basis difference was calculated as the difference between the investment and the amount of underlying equity in net assets acquired. The basis differences, net of tax, will be amortized over the estimated useful lives. Teradyne made an accounting policy election to report its share of Technoprobe’s results on a 3-month lag, which is applied consistently from period to period. Teradyne records its share of Technoprobe’s net income or loss and the amortization of equity method basis difference, as ‘ Equity in net earnings of affiliate’ in the condensed consolidated statements of operations. Teradyne includes its share of Technoprobe’s other comprehensive income and a cumulative translation adjustment in the condensed consolidated statements of comprehensive income. G. INVENTORIES Inventories, net consisted of the following at June 28, 2026, and December 31, 2025:       June 28, 2026     December 31, 2025       (in thousands)   Raw material   $ 272,105     $ 267,566   Work-in-process     65,691       47,876   Finished goods     65,501       64,110   Total inventories, net   $ 403,297     $ 379,552   Inventory reserves at June 28, 2026, and December 31, 2025, were $ 155.8 million and $ 151.8 million, respectively. 10   H. FINANCIAL INSTRUMENTS Cash Equivalents Teradyne considers all highly liquid investments with original maturities of three months or less at the date of acquisition to be cash equivalents. Marketable Securities Teradyne’s equity and debt mutual funds are classified as Level 1 and available-for-sale debt securities are classified as Level 2. The vast majority of Level 2 securities are fixed income securities priced by third party pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available, use other observable inputs like market transactions involving identical or comparable securities. During the three and six months ended June 28, 2026, and June 29, 2025, there were no transfers in or out of Level 1, Level 2, or Level 3 financial instruments.       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in millions)     (in millions)   Realized gains and losses included in ‘Other (income) expense, net’ in the condensed consolidated statement of operations   Realized gains   $ 0.2     $ 0.4     $ 0.9     $ 1.2   Realized losses     0.1       0.1       0.2       1.4                             Unrealized gains and losses on equity securities included in ‘Other (income) expense, net’ in the condensed consolidated statement of operations   Unrealized gains on equity securities     8.1       4.1       8.1       4.4   Unrealized losses on equity securities     —       —       4.0       3.1   Unrealized gains and losses on available-for-sale debt securities are included in ‘Accumulated other comprehensive income (loss)’ in the condensed consolidated balance sheet. The cost of securities sold is based on average cost. 11   The following tables set forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of June 28, 2026, and December 31, 2025.       June 28, 2026     December 31, 2025       Quoted Prices in Active Markets for Identical Instruments (Level 1)     Significant Other Observable Inputs (Level 2)     Total (1)     Quoted Prices in Active Markets for Identical Instruments (Level 1)     Significant Other Observable Inputs (Level 2)     Total (1)       (in thousands)   Assets                                     Cash   $ 178,364     $ —     $ 178,364     $ 214,712     $ —     $ 214,712   Cash equivalents     170,150       1,024       171,174       78,068       971       79,039   Available-for-sale securities:                                     U.S. Treasury securities     —       13,459       13,459       —       44,143       44,143   Corporate debt securities     —       58,836       58,836       —       36,384       36,384   Debt mutual funds     13,057       —       13,057       14,331       —       14,331   Certificates of deposit and time deposits     —       1,177       1,177       —       1,354       1,354   Non-U.S. government securities     —       14,155       14,155       —       924       924   Equity securities:                                     Mutual funds     66,881       —       66,881       57,367       —       57,367     $ 428,452     $ 88,651     $ 517,103     $ 364,478     $ 83,776     $ 448,254   Derivative assets     —       823       823       —       1,175       1,175   Total   $ 428,452     $ 89,474     $ 517,926     $ 364,478     $ 84,951     $ 449,429   Liabilities                                     Derivative liabilities     —       2,045     $ 2,045       —       928     $ 928   Total   $ —     $ 2,045     $ 2,045     $ —     $ 928     $ 928                                         Reported as follows:                                         (Level 1)     (Level 2)     Total (1)     (Level 1)     (Level 2)     Total (1)       (in thousands)   Assets                                     Cash and cash equivalents   $ 348,514     $ 1,024       349,538     $ 292,780     $ 971       293,751   Long-term marketable securities     79,938       82,336       162,274       71,698       54,558       126,256   Marketable securities     —       5,291       5,291       —       28,247       28,247   Prepayments     —       823       823       —       1,175       1,175   Total   $ 428,452     $ 89,474     $ 517,926     $ 364,478     $ 84,951     $ 449,429   Liabilities                                     Other current liabilities   $ —     $ 2,045     $ 2,045     $ —     $ 928     $ 928        Total   $ —     $ 2,045     $ 2,045     $ —     $ 928     $ 928     (1) There were no financial assets or liabilities measured using significant unobservable inputs (Level 3) as of June 28, 2026 and December 31, 2025. 12     The carrying values and fair values of Teradyne’s financial instruments at June 28, 2026, and December 31, 2025, were as follows:       June 28, 2026     December 31, 2025       Carrying Value     Fair Value     Carrying Value     Fair Value       (in thousands)   Assets                         Cash and cash equivalents   $ 349,538     $ 349,538     $ 293,751     $ 293,751   Marketable securities     167,565       167,565       154,503       154,503   Derivative assets     823       823       1,175       1,175   Liabilities                         Derivative liabilities     2,045       2,045       928       928     The fair values of accounts receivable, net and accounts payable approximate their carrying values due to the short-term nature of these instruments. The following table summarizes the composition of available-for-sale marketable securities at June 28, 2026:       June 28, 2026       Available-for-Sale       Cost     Unrealized Gain     Unrealized (Loss)     Fair Market Value     Fair Market Value of Investments with Unrealized Losses       (in thousands)   U.S. Treasury securities   $ 18,120     $ 13     $ ( 4,674 )   $ 13,459     $ 12,949   Corporate debt securities     62,262       658       ( 4,084 )     58,836       25,637   Debt mutual funds     13,243       —       ( 186 )     13,057       3,057   Certificates of deposit and time deposits     1,177       —       —       1,177       —   Non-U.S. government securities     14,154       153       ( 152 )     14,155       3,760     $ 108,956     $ 824     $ ( 9,096 )   $ 100,684     $ 45,403     Reported as follows:       Cost     Unrealized Gain     Unrealized (Loss)     Fair Market Value     Fair Market Value of Investments with Unrealized Losses       (in thousands)   Marketable securities   $ 5,315     $ —     $ ( 24 )   $ 5,291     $ 3,739   Long-term marketable securities     103,641       824       ( 9,072 )     95,393       41,664     $ 108,956     $ 824     $ ( 9,096 )   $ 100,684     $ 45,403     13   The following table summarizes the composition of available-for-sale marketable securities at December 31, 2025:       December 31, 2025       Available-for-Sale       Cost     Unrealized Gain     Unrealized (Loss)     Fair Market Value     Fair Market Value of Investments with Unrealized Losses       (in thousands)   U.S. Treasury securities   $ 48,723     $ 90     $ ( 4,670 )   $ 44,143     $ 13,891   Corporate debt securities     40,090       293       ( 3,999 )     36,384       22,941   Debt mutual funds     14,508       —       ( 177 )     14,331       3,020   Certificates of deposit and time deposits     1,354       —       —       1,354       —   Non-U.S. government securities     924       —       —       924       —     $ 105,599     $ 383     $ ( 8,846 )   $ 97,136     $ 39,852     Reported as follows:       Cost     Unrealized Gain     Unrealized (Loss)     Fair Market Value     Fair Market Value of Investments with Unrealized Losses       (in thousands)   Marketable securities   $ 28,213     $ 41     $ ( 7 )   $ 28,247     $ 2,293   Long-term marketable securities     77,386       342       ( 8,839 )     68,889       37,559     $ 105,599     $ 383     $ ( 8,846 )   $ 97,136     $ 39,852     As of June 28, 2026, the fair market value of investments with unrealized losses less than one year and greater than one year totaled $ 11.3 million and $ 34.1 million, respectively. As of December 31, 2025, the fair market value of investments with unrealized losses for less than one year and greater than one year totaled $ 1.1 million and $ 38.8 million, respectively. Teradyne reviews its investments to identify and evaluate investments that have an indication of possible impairment. Based on this review, Teradyne determined that the unrealized losses related to these investments at June 28, 2026, and December 31, 2025, were not other than temporary. The contractual maturities of investments in available-for-sale securities held at June 28, 2026, were as follows:       June 28, 2026       Cost     Fair Market Value       (in thousands)   Due within one year   $ 5,315     $ 5,291   Due after 1 year through 5 years     8,997       8,828   Due after 5 years through 10 years     16,095       16,225   Due after 10 years     65,306       57,283   Total   $ 95,713     $ 87,627     Contractual maturities of investments in available-for-sale securities held at June 28, 2026, exclude debt mutual funds with a fair market value of $ 13.1 million as they do not have a contractual maturity date. Derivatives Teradyne conducts business in various foreign countries, with certain transactions denominated in local currencies. As a result, Teradyne is exposed to risks relating to changes in foreign currency exchange rates. Teradyne’s foreign currency risk management objective is to minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, and changes in its cash inflows attributable to the forecasted cash flows from certain foreign currency denominated revenues. 14   To minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings and is used to offset the change in value of monetary assets and liabilities denominated in foreign currencies. Teradyne also enters into foreign currency forward and option contracts designated as cash flow hedges to hedge the risk of changes in its cash inflows attributable to changes in foreign currency exchange rates. The cash flow hedges have maturities of less than six months and mature in the period of revenue recognition for certain products and services in backlog and forecasted to be recognized in a future period. Teradyne evaluates cash flow hedges for effectiveness at inception based on the critical terms match method. The hedges are not expected to incur any ineffectiveness, however, a quarterly qualitative assessment of effectiveness is done to determine if the critical terms match method remains appropriate to use. The change in fair value of the contracts is recorded in accumulated other comprehensive income (loss) and reclassified to earnings at maturity. Teradyne does not use derivative financial instruments for speculative purposes. At June 28, 2026, and December 31, 2025, Teradyne had the following contracts to buy and sell non-U.S. currencies for U.S. dollars and other non-U.S. currencies with the following notional amounts:       Gross Notional Value       June 28, 2026     December 31, 2025       (in millions)   Currency Hedged (Buy/Sell)             U.S. dollar/Taiwan dollar     17.0       27.0   U.S. dollar/Euro     6.7       —   U.S. dollar/Japanese yen     5.8       16.9   U.S. dollar/Korean won     3.8       7.7   U.S. dollar/British pound sterling     1.8       1.9   Singapore dollar/U.S. dollar     95.6       62.6   Philippine peso/U.S. dollar     1.7       1.8   Chinese yuan/U.S. dollar     1.2       0.7   Euro/U.S. dollar     —       20.4   Total   $ 133.6     $ 139.0     The change in the fair value of the outstanding contracts resulted in a net loss of $ 1.2 million and a net gain of $ 0.2 million at June 28, 2026, and December 31, 2025, respectively. Unrealized gains and losses on foreign currency forward contracts and foreign currency remeasurement gains and losses on monetary assets and liabilities are included in ‘Other (income) expense, net’ in the condensed consolidated statement of operations. The following table summarizes the fair value of derivative instruments as of June 28, 2026, and December 31, 2025:       Balance Sheet Location   June 28, 2026     December 31, 2025           (in thousands)   Derivatives not designated as hedging instruments:   Foreign exchange forward contracts   Other current assets     823       1,175   Foreign exchange forward contracts   Other current liabilities     ( 2,045 )     ( 928 ) Total derivatives       $ ( 1,222 )   $ 247     15     The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three and six months ended June 28, 2026, and June 29, 2025:           For the Three Months  Ended     For the Six Months  Ended       Location of (Gains) Losses Recognized in Statement of Operations   June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025           (in thousands)     (in thousands)   Derivatives not designated as hedging instruments:   Foreign exchange forward contracts (1)   Other (income) expense, net   $ 1,522     $ 122     $ 2,608     $ ( 45 ) Derivatives designated as hedging instruments:   Foreign exchange forward and option contracts   Revenue     —       298       —       ( 449 ) Total Derivatives       $ 1,522     $ 420     $ 2,608     $ ( 494 )   (1) The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities denominated in foreign currencies. For the three and six months ended June 28, 2026, net losses from remeasurement of monetary assets and liabilities denominated in foreign currencies were $ 0.7 million and $ 2.1 million, respectively. For the three and six months ended June 29, 2025, net losses from remeasurement of monetary assets and liabilities denominated in foreign currencies were $ 1.2 million and $ 3.4 million, respectively. I. DEBT Revolving Credit Facility On May 1, 2020, Teradyne entered into a credit agreement (the “Credit Agreement”) with Truist Bank, as administrative agent and collateral agent, and the lenders party th ereto. The Credit Agreement provides for a three-year , senior secured revolving credit facility of $ 400.0 million (the “Credit Facility”). On December 10, 2021, the Credit Agreement was amended to extend the maturity date of the Credit Facility to December 10, 2026. On October 5, 2022, the Credit Agreement was amended to increase the amount of the Credit Facility to $ 750.0 million from $ 400.0 million. On November 7, 2023, the Credit Agreement was further amended to allow for the purchase of the shares of Technoprobe. The Credit Agreement provides that, subject to customary conditions, Teradyne may seek to obtain from existing or new lenders the available incremental amount under the Credit Facility, not to exceed the greater of $ 200.0 million or 15 % of consolidated EBITDA. The interest rate applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.00 % to 0.75 % per annum or SOFR plus a margin ranging from 1.10 % to 1.85 % per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.15 % to 0.25 % per annum, based on the then applicable consolidated leverage ratio . Teradyne is not required to repay any loans under the Credit Facility prior to maturity, subject to certain customary exceptions. Teradyne is permitted to prepay all or any portion of the loans under the Credit Facility prior to maturity without premium or penalty, other than customary SOFR breakage costs. The Credit Agreement contains customary events of default, representations, warranties and affirmative and negative covenants that, among other things, limit Teradyne’s ability to sell assets, grant liens on assets, incur other secured indebtedness and make certain investments and restricted payments, all subject to exceptions set forth in the Credit Agreement. The Credit Agreement also requires Teradyne to satisfy two financial ratios measured as of the end of each fiscal quarter: a consolidated leverage ratio and an interest coverage ratio. The Credit Facility is guaranteed by certain of Teradyne’s domestic subsidiaries and collateralized by assets of Teradyne and such subsidiaries, including a pledge of 65 % of the capital stock of certain foreign subsidiaries. As of June 28, 2026 , Teradyne did no t have an outstanding balance under the Credit Agreement. As of December 31, 2025, Teradyne had an outstanding balance of $ 200 million under the Credit Agreement. The weighted-average interest rate on the outstanding borrowings as of December 31, 2025 was 4.86 %. During the six months ended June 28, 2026 , Teradyne paid $ 4.8 million in interest related to its debt from the Credit Facility. As of June 28, 2026 , Teradyne was in compliance with all covenants under the Credit Agreement. 16   J. PREPAYMENTS Prepayments consist of the following:       June 28, 2026     December 31, 2025       (in thousands)   Contract manufacturer and supplier prepayments   $ 412,443     $ 364,170   Prepaid maintenance and other services     19,961       16,662   Prepaid taxes     10,458       9,861   Other prepayments     25,312       36,871   Total prepayments   $ 468,174     $ 427,564     K . PRODUCT WARRANTY Teradyne generally provides a one-year warranty on its products, commencing upon installation, acceptance or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands)     (in thousands)   Balance at beginning of period   $ 23,380     $ 13,076     $ 19,150     $ 12,962   Accruals for warranties issued during the period     9,338       4,210       18,087       10,155   Accruals related to pre-existing warranties     657       ( 369 )     353       ( 921 ) Settlements made during the period     ( 7,681 )     ( 4,679 )     ( 11,896 )     ( 9,958 ) Balance at end of period   $ 25,694     $ 12,238     $ 25,694     $ 12,238     When Teradyne receives revenue for extended warranties, beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands)     (in thousands)   Balance at beginning of period   $ 67,011     $ 44,312     $ 55,913     $ 41,624   Deferral of new extended warranty revenue     18,426       9,705       36,204       17,643   Recognition of extended warranty deferred revenue     ( 7,313 )     ( 7,266 )     ( 13,993 )     ( 12,516 ) Balance at end of period   $ 78,124     $ 46,751     $ 78,124     $ 46,751     L. STOCK-BASED COMPENSATION Under Teradyne’s stock compensation plans, Teradyne grants time-based restricted stock units, performance-based restricted stock units and stock options, and employees are eligible to purchase Teradyne’s common stock through its Employee Stock Purchase Plan (“ESPP”). Service-based restricted stock unit awards granted to employees vest in equal annual installments over four years . Restricted stock unit awards granted to non-employee directors vest after a one-year period, with 100 % of the award vesting on the earlier of (a) the first anniversary of the grant date or (b) the date of the following year’s Annual Meeting of Shareholders. Teradyne expenses the cost of the restricted stock unit awards subject to time-based vesting, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which the restrictions lapse. 17   Performance-based restricted stock units (“PRSUs”) may have a performance metric based on relative total shareholder return (“TSR” ). For PRSUs granted beginning in 2026, Teradyne’s three‑year TSR performance will be measured against all other companies within the S&P 500. PRSUs granted prior to 2026, including those that remain outstanding and unvested, will continue to be measured against the New York Stock Exchange (“NYSE”) Composite Index for their full three‑year performance periods. The final number of TSR PRSUs that vest will vary based upon the level of performance achieved from 0 % to 200 % of the target shares. The TSR PRSUs will vest upon the three-year anniversary of the grant date. The TSR PRSUs are valued using a Monte Carlo simulation model. The number of units expected to be earned, based upon the achievement of the TSR market condition, is factored into the grant date Monte Carlo valuation. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant to the date described in the retirement provisions below. PRSUs may also have a performance metric based on three-year cumulative non-GAAP profit before interest and tax (“PBIT”) as a percent of Teradyne’s revenue. Non-GAAP PBIT is a financial measure equal to GAAP income from operations less restructuring and other, net; amortization of acquired intangible assets; acquisition and divestiture related charges or credits; pension actuarial gains and losses; non-cash convertible debt interest expense, when applicable ; and other non-recurring gains and charges such as ERP implementation related costs and equity modification charges. The final number of PBIT PRSUs that vest will vary based upon the level of performance achieved from 0 % to 200 % of the target shares. The PBIT PRSUs will vest upon the three-year anniversary of the grant date. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant date to the date described in the retirement provisions below. Compensation expense for employees meeting the retirement provisions prior to the grant date is recognized during the year following the grant. Compensation expense is recognized based on the number of units that are earned based upon the three-year Teradyne PBIT as a percent of Teradyne’s revenue, provided the recipient remains an employee at the end of the three-year period subject to the retirement and termination eligibility provisions noted below. If a PRSU recipient’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age 60 and at least 10 years of service, then all or a portion of the recipient’s PRSUs (based on the actual performance percentage achieved on the determination date) will vest on the date the performance percentage is determined. Except as set forth in the preceding sentence, no PRSUs will vest if the recipient is no longer an employee at the end of the three-year period. Stock options to purchase Teradyne’s common stock at 100 % of the fair market value on the grant date vest in equal annual installments over four years from the grant date and have a maximum term of seven years . On January 22, 2024, the Board enacted the Executive Retirement Policy for Restricted Stock Unit and Option Vesting (the “Retirement Policy”). Under the Retirem ent Policy, an executive officer that is over the age of 65 and has 10 or more years of service as of the effective date of his or her retirement will be eligible for continued vesting of his or her unvested time-based restricted stock units and stock options granted prior to his or her retirement date. During the six months ended June 28, 2026, and June 29, 2025, Teradyne granted 0.2 million and 0.6 million of service-based restricted stock unit awards to employees at a weighted average grant date fair value of $ 270.22 and $ 112.40 , respectively, and less than 0.1 million and less than 0.1 million of service-based restricted stock unit awards to non-employee directors at a weighted average grant date fair value of $ 359.26 and $ 76.98 , respectively. During the six months ended June 28, 2026, and June 29, 2025, Teradyne granted 0.1 million and 0.1 million of PBIT PRSUs with a weighted average grant date fair value of $ 272.70 and $ 108.34 , respectively. During the six months ended June 28, 2026, and June 29, 2025, Teradyne granted 0.1 million and 0.1 million of TSR PRSUs, with a weighted average grant date fair value of $ 449.92 and $ 108.26 , respectively. The grant date fair value was estimated using the Monte Carlo simulation model with the following assumptions:       For the Six Months  Ended       June 28, 2026     June 29, 2025   Risk-free interest rate     3.6 %     4.1 % Teradyne volatility-historical     47.9 %     41.7 % S&P 500 Constituents volatility-historical     27.6 %       NYSE Composite Index volatility-historical           14.7 % Dividend yield     0.2 %     0.4 %   18     Expected volatility was based on the historical volatility of Teradyne’s stock and the companies within the S&P 500 for shares granted in 2026 and the NYSE Composite Index for shares granted prior to 2026 over the most recent three-year period. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of the applicable grant. Dividend yield was based upon an estimated annual dividend amount of $ 0.52 per share divided by Teradyne’s stock price on the grant dates, which have a weighted average grant date stock price of $ 274.13 for the 2026 grants, and an estimated annual dividend amount of $ 0.48 per share divided by Teradyne’s stock price on the grant date of $ 109.49 for the 2025 grants. During the six months ended June 28, 2026, and June 29, 2025, Teradyne granted 0.1 million and 0.1 million of service-based stock options at a weighted average grant date fair value of $ 104.02 and $ 41.93 , respectively. The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:       For the Six Months  Ended       June 28, 2026     June 29, 2025   Expected life (years)     3.5       4.0   Risk-free interest rate     3.7 %     4.2 % Volatility-historical     47.1 %     43.9 % Dividend yield     0.2 %     0.4 %   Teradyne determined the stock options’ expected life based upon historical exercise data for recipients, the age of the employee and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $ 0.52 per share divided by Teradyne’s stock price on the grant date, which have a weighted average grant date stock price of $ 274.03 for the 2026 grant and an estimated annual dividend amount of $ 0.48 per share divided by Teradyne’s stock price on the grant date of $ 109.29 for the 2025 grant. 19   M. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Changes in accumulated other comprehensive income (loss) attributable to Teradyne, which are presented net of tax, consist of the following:       Foreign Currency Translation Adjustment     Unrealized (Losses) Gains on Marketable Securities     Unrealized (Losses) Gains on Cash Flow Hedges     Retirement Plans Prior Service Credit     Total       (in thousands)   Six Months Ended June 28, 2026                               Total balance at December 31, 2025, net of tax of $ 0 , $( 1,892 ),    $ 0 , $( 1,136 ), respectively   $ 47,328     $ ( 6,571 )   $ —     $ 1,138     $ 41,895   Other comprehensive (loss) gain before reclassifications,    net of tax of $ 0 , $( 68 ), $ 0 , $ 0 , respectively     ( 31,377 )     227       —       —       ( 31,150 ) Amounts reclassified from accumulated other comprehensive    income (loss), net of tax of $ 0 , $ 12 , $ 0 , $( 1 ), respectively     —       13       —       ( 2 )     11   Net current period other comprehensive loss, net of tax    of $ 0 , $( 56 ), $ 0 , $( 1 ), respectively     ( 31,377 )     240       —       ( 2 )     ( 31,139 ) Total balance attributable to Teradyne at June 28, 2026, net of tax of $ 0 , $( 1,948 ), $ 0 , $( 1,137 ), respectively   $ 15,951     $ ( 6,331 )   $ —     $ 1,136     $ 10,756                                   Six Months Ended June 29, 2025                               Total balance at December 31, 2024, net of tax of $ 0 , $( 2,174 ),    $ 209 , $( 1,134 ), respectively   $ ( 75,289 )   $ ( 7,807 )   $ 731     $ 1,145     $ ( 81,220 ) Other comprehensive (loss) gain before reclassifications,    net of tax of $ 0 , $ 115 , $( 109 ), $ 0 , respectively     122,316       585       ( 381 )     —       122,520   Amounts reclassified from accumulated other comprehensive    income (loss), net of tax of $ 0 , $ 27 , $( 100 ), $( 1 ), respectively     —       89       ( 350 )     ( 3 )     ( 264 ) Net current period other comprehensive loss, net of tax    of $ 0 , $ 142 , $( 209 ), $( 1 ), respectively     122,316       674       ( 731 )     ( 3 )     122,256   Total balance attributable to Teradyne at June 29, 2025, net of tax of $ 0 , $( 2,032 ), $ 0 , $( 1,135 ), respectively   $ 47,027     $ ( 7,133 )   $ —     $ 1,142     $ 41,036     Reclassifications out of accumulated other comprehensive income (loss) to the statement of operations for the three and six months ended June 28, 2026, and June 29, 2025, were as follows:   Details about Accumulated Other Comprehensive Income (Loss) Components   For the Three Months  Ended     For the Six Months  Ended     Affected Line Item in the Statements of Operations     June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025           (in thousands)     (in thousands)       Available-for-sale marketable securities:                             Unrealized (losses) gains, net of tax of $( 16 ), ( 6 ), $( 12 ), $( 27 ), respectively   $ ( 55 )   $ ( 15 )   $ ( 13 )   $ ( 89 )   Other (income) expense, net Cash flow hedges:                             Unrealized (losses) gains, net of tax of $ 0 , $( 66 ), $ 0 , $ 100 , respectively     —       ( 232 )     —       350     Revenue Defined benefit pension and postretirement plans:                             Amortization of prior service credit, net of tax of $ 0 , $ 0 , $ 1 , $ 1 , respectively     1       2       2       3     (a) Total reclassifications, net of tax of $( 16 ), $( 72 ), $( 11 ), $ 74 , respectively   $ ( 54 )   $ ( 245 )   $ ( 11 )   $ 264     Net income (a) The amortization of prior service credit is included in the computation of net periodic postretirement benefit cost. See Note Q: “Retirement Plans.”   As of June 28, 2026 , there were no components of accumulated other comprehensive income (loss) attributable to noncontrolling interests. 20   N. GOODWILL AND ACQUIRED INTANGIBLE ASSETS Goodwill Goodwill is considered impaired when the carrying value of a reporting unit exceeds its estimated fair value. Teradyne performs its annual goodwill impairment test as required under the provisions of ASC 350-10, “Intangibles—Goodwill and Other” on December 31 of each fiscal year unless there are negative qualitative factors relating to macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, and other relevant events and changes during an interim period. The presence of such factors could, under certain circumstances, be a triggering event that causes us to perform a goodwill impairment test. The changes in the carrying amount of goodwill by reportable segments for the six months ended June 28, 2026, were as follows:       Robotics     Semiconductor Test     Product Test     Total       (in thousands)   Balance at December 31, 2025                         Goodwill   $ 416,401     $ 263,598     $ 603,586     $ 1,283,585   Accumulated impairment losses     —       ( 260,540 )     ( 502,026 )     ( 762,566 ) Total Goodwill     416,401       3,058       101,560       521,019   Acquisitions (1)     —       22,305       131,634       153,939   Foreign currency translation adjustment     ( 11,104 )     ( 37 )     —       ( 11,141 ) Balance at June 28, 2026                         Goodwill   $ 405,297     $ 285,866     $ 735,220     $ 1,426,383   Accumulated impairment losses     —       ( 260,540 )     ( 502,026 )     ( 762,566 ) Total Goodwill   $ 405,297     $ 25,326     $ 233,194     $ 663,817     (1) Goodwill increased due to acquisitions made in the six months ended June 28, 2026, including the acquisition of a controlling interest in MLTP. See Note D: “Acquisitions” for more information.   Intangible Assets Teradyne reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. For the six months ended June 28, 2026, the Company did not record any intangible asset impairment.   Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:       Gross Carrying Amount (1)     Accumulated Amortization (1)     Foreign Currency Translation Adjustment     Net Carrying Amount       (in thousands)   Balance at June 28, 2026                         Developed technology   $ 269,110     $ ( 185,930 )   $ —     $ 83,180   Customer relationships     54,064       ( 42,735 )     —       11,329   Tradenames and trademarks     39,157       ( 30,606 )     ( 1,150 )     7,401   Total intangible assets   $ 362,331     $ ( 259,271 )   $ ( 1,150 )   $ 101,910   Balance at December 31, 2025                         Developed technology   $ 250,025     $ ( 211,662 )   $ 60     $ 38,423   Customer relationships     56,480       ( 51,953 )     204       4,731   Tradenames and trademarks     40,487       ( 31,339 )     ( 1,031 )     8,117   Total intangible assets   $ 346,992     $ ( 294,954 )   $ ( 767 )   $ 51,271     (1) In the six months ended June 28, 2026 , $ 42.6 million of a mortizable intangible assets became fully amortized and have been eliminated from the gross carrying amount and accumulated amortization. 21   Aggregate intangible asset amortization expense was $ 5.0 million and $ 7.2 million , respectively, for the three and six months ended June 28, 2026, and $ 3.7 million and $ 8.3 million , respectively, for the three and six months ended June 29, 2025. Estimated intangible asset amortization expense for each of the five succeeding fiscal years and thereafter is as follows:   Year   Amortization Expense       (in thousands)   2026   $ 10,294   2027     19,603   2028     19,522   2029     18,200   2030     9,643   Thereafter     24,648     O . EARNINGS PER COMMON SHARE ATTRIBUTABLE TO TERADYNE The following table sets forth the computation of basic and diluted earnings per common share attributable to Teradyne:       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands, except per share amounts)     (in thousands, except per share amounts)   Net income attributable to Teradyne for basic and diluted earnings per common share   $ 374,533     $ 78,372     $ 773,442     $ 177,269   Weighted average common shares-basic     156,470       159,967       156,440       160,734   Effect of dilutive potential common shares:                         Restricted stock units     1,142       160       1,145       302   Stock options     81       2       77       3   Employee stock purchase plan     —       6       2       26   Dilutive potential common shares     1,223       168       1,224       331   Weighted average common shares-diluted     157,693       160,135       157,664       161,065   Earnings per common share attributable to Teradyne - basic   $ 2.39     $ 0.49     $ 4.94     $ 1.10   Earnings per common share attributable to Teradyne - diluted   $ 2.38     $ 0.49     $ 4.91     $ 1.10   The computation of diluted earnings per common share attributable to Teradyne for the three and six months ended June 28, 2026 , excludes the effect of the potential vesting of less than 0.1 million of restricted stock units because the effect would have been anti-dilutive. The computation of diluted earnings per common share attributable to Teradyne fo r the three and six months ended June 29, 2025, excludes the effect of the potential vesting of 1.4 million and 1.9 million, respectively, of restricted stock units because the effect would have been anti-dilutive. P. RESTRUCTURING AND OTHER During the three months ended June 28, 2026, Teradyne recorded $ 3.0 million of restructuring and other charges, of which $ 1.5 million were related to acquisition and divestiture related expenses and $ 1.4 million were severance charges. During the three months ended June 29, 2025 , Teradyne recorded $ 2.3 million of severance charges, $ 0.8 million of which is related to the Robotics restructuring which was initiated during the three months ended March 30, 2025, and impacted approximately 150 employees. During the three months ended June 29, 2025, Teradyne made $ 3.9 million of Robotics severance payments. During the six months ended June 28, 2026, Teradyne recorded $ 6.5 million of restructuring and other charges, of which $ 3.2 million were related to acquisition and divestiture related expenses and $ 2.3 million were severance charges . During the six months ended June 29, 2025 , Teradyne recorded $ 13.7 million of severance charges, $ 10.0 million of which is related to the Robotics restructuring which impacted approximately 150 employees, and $ 2.1 million of which related to Product Test. During the six months ended June 29, 2025, Teradyne made $ 8.1 million of Robotics severance payments. Teradyne expects all 22   Robotics severance payments to be made prior to the end of our third quarter. Additionally, Teradyne recorded $ 1.6 million of acquisition and divestiture expenses related primarily to the Quantifi acquisition, and $ 1.2 million of charges related to lease terminations. Q. RETIREMENT PLANS ASC 715, “Compensation—Retirement Benefits,” requires an employer with defined benefit plans or other postretirement benefit plans to recognize an asset or a liability on its balance sheet for the overfunded or underfunded status of the plans as defined by ASC 715. The pension asset or liability represents a difference between the fair value of the pension plan’s assets and the projected benefit obligation at December 31. Teradyne uses a December 31 measurement date for all its plans. Defined Benefit Pension Plans Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets of the U.S. qualified pension plan consist primarily of fixed income and equity securities. In addition, Teradyne has an unfunded supplemental executive defined benefit plan in the United States to provide retirement benefits in excess of levels allowed by the Employment Retirement Income Security Act (“ERISA”) and the Internal Revenue Code (the “IRC”), as well as unfunded qualified foreign plans. In the six months ended June 28, 2026, and June 29, 2025, Teradyne contributed $ 1.8 million and $ 1.6 million, respectively, to the U.S. supplemental executive defined benefit pension plan, and $ 0.8 million and $ 3.3 million, respectively, to certain qualified pension plans for non-U.S. subsidiaries. For the three and six months ended June 28, 2026, and June 29, 2025, Teradyne’s net periodic pension cost was comprised of the following:       For the Three Months Ended       June 28, 2026     June 29, 2025       United States     Foreign     United States     Foreign       (in thousands)   Service cost   $ 143     $ 296     $ 96     $ 150   Interest cost     1,358       345       1,165       301   Expected return on plan assets     ( 975 )     ( 54 )     ( 665 )     ( 25 ) Net actuarial loss (gain)     ( 43 )     —       41       —   Total net periodic pension cost   $ 483     $ 586     $ 637     $ 426         For the Six Months Ended       June 28, 2026     June 29, 2025       United States     Foreign     United States     Foreign       (in thousands)   Service cost   $ 286     $ 598     $ 309     $ 289   Interest cost     2,716       697       2,873       595   Expected return on plan assets     ( 1,950 )     ( 109 )     ( 1,981 )     ( 50 ) Net actuarial loss (gain)     ( 43 )     —       41       —   Total net periodic pension cost   $ 1,009     $ 1,187     $ 1,242     $ 834     Postretirement Benefit Plan In addition to receiving pension benefits, Teradyne employees in the United States who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees could become eligible for these benefits and the existing benefit obligation relates primarily to those employees. During the six months ended June 29, 2025, Teradyne recorded special termination benefit charges associated with a voluntary early retirement program. 23   For the three and six months ended June 28, 2026, and June 29, 2025, Teradyne’s net periodic postretirement benefit cost was comprised of the following:       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025       (in thousands)     (in thousands)   Service cost   $ 7     $ 8     $ 15     $ 18   Interest cost     66       80       134       153   Amortization of prior service credit     ( 1 )     ( 2 )     ( 2 )     ( 4 ) Special termination benefits     —       —       —       684   Net actuarial loss (gain)     ( 114 )     87       ( 114 )     87   Total net periodic postretirement benefit cost   $ ( 42 )   $ 173     $ 32     $ 938     R. COMMITMENTS AND CONTINGENCIES Purchase Commitments As of June 28, 2026 , Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments covered by the agreements aggregate to approximately $ 1,781.4 million, of which $ 1,558.8 million is for less than one year. Legal Claims Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations. Guarantees and Indemnification Obligations Teradyne provides indemnification, to the extent permitted by law, to its officers, directors, employees and agents for liabilities arising from certain events or occurrences, while the officer, director, employee, or agent, is or was serving, at Teradyne’s request in such capacity. Teradyne may enter into indemnification agreements with certain of its officers and directors. With respect to acquisitions, Teradyne provides indemnifications to or assumes indemnification obligations for the current and former directors, officers and employees of the acquired companies in accordance with the acquired companies’ by-laws and charter. As a matter of practice, Teradyne has maintained directors’ and officers’ liability insurance coverage including coverage for directors and officers of acquired companies. Teradyne enters into agreements in the ordinary course of business with customers, resellers, distributors, integrators and suppliers. Most of these agreements require Teradyne to defend and/or indemnify the other party against intellectual property infringement claims brought by a third party with respect to Teradyne’s products. From time to time, Teradyne also indemnifies customers and business partners for damages, losses and liabilities they may suffer or incur relating to personal injury, personal property damage, product liability, breach of confidentiality obligations and environmental claims relating to the use of Teradyne’s products and services or resulting from the acts or omissions of Teradyne, its employees, authorized agents or subcontractors. On occasion, Teradyne has also provided guarantees to customers regarding the delivery and performance of its products in addition to the warranty described below. As a matter of ordinary course of business, Teradyne warrants that its products will substantially perform in accordance with its standard published specifications in effect at the time of delivery. Most warranties have a one-year duration commencing from installation. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based upon historical experience. When Teradyne receives revenue for extended warranties beyond the standard duration, the revenue is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. As of June 28, 2026, and December 31, 2025, Teradyne had a product warranty accrual of $ 25.7 million and $ 19.2 million, respectively, included in other accrued liabilities and revenue deferrals related to extended warranties of $ 78.1 million and $ 55.9 million, respectively, included in short and long-term deferred revenue and customer advances. 24   In addition, in the ordinary course of business, Teradyne provides minimum purchase guarantees to certain vendors to ensure continuity of supply against the market demand. Although some of these guarantees provide penalties for cancellations and/or modifications to the purchase commitments as the market demand decreases, most of the guarantees do not. Therefore, as the market demand decreases, Teradyne re-evaluates these guarantees and determines what charges, if any, should be recorded. With respect to its agreements covering product, business or entity divestitures and acquisitions, Teradyne provides certain representations, warranties and covenants to purchasers and agrees to indemnify and hold such purchasers harmless against breaches of such representations, warranties and covenants. Many of the indemnification claims have a definite expiration date while some remain in force indefinitely. With respect to its acquisitions, Teradyne may, from time to time, assume the liability for certain events or occurrences that took place prior to the date of acquisition. As a matter of ordinary course of business, Teradyne occasionally guarantees certain indebtedness obligations of its subsidiary companies, limited to the borrowings from financial institutions, purchase commitments to certain vendors and lease commitments to landlords. Based on historical experience and information known as of June 28, 2026, and December 31, 2025 , except for product warranty, Teradyne has not recorded any liabilities for these guarantees and obligations because the amount would be immaterial. S. INCOME TAXES The effective tax rate for the three months ended June 28, 2026, and June 29, 2025, was 15.1 % and 12.7 % , respectively. The increase in the effective tax rate from the three months ended June 29, 2025, to the three months ended June 28, 2026, is primarily attributable to lower benefits from tax credits partially offset by increased benefits from equity compensation and a projected shift in the geographic distribution of income. The effective tax rate for the six months ended June 28, 2026, and June 29, 2025, was 14.2 % and 12.4 % , respectively. The increase in the effective tax rate from the six months ended June 29, 2025, to the six months ended June 28, 2026, is primarily attributable to lower benefits from tax credits partially offset by increased benefits from equity compensation and a projected shift in the geographic distribution of income. On a quarterly basis, Teradyne evaluates the realizability of the deferred tax assets by jurisdiction and assesses the need for a valuation allowance. As of June 28, 2026, Teradyne believes that it will ultimately realize the deferred tax assets recorded on the condensed consolidated balance sheet. However, should Teradyne believe that it is more-likely-than-not that the deferred tax assets would not be realized, the tax provision would increase in the period in which Teradyne determined that the realizability was not likely. Teradyne considers the probability of future taxable income and historical profitability, among other factors, in assessing the realizability of the deferred tax assets. As of both June 28, 2026, and December 31, 2025, Teradyne had $ 6.9 million of reserves for uncertain tax positions. Teradyne recognizes interest and penalties related to income tax matters in income tax expense. As of June 28, 2026, and December 31, 2025, $ 0.3 million and $ 0.3 million, respectively, of interest and penalties were accrued for uncertain tax positions. For the six months ended June 28, 2026, and June 29, 2025, an expense of less than $ 0.1 million and less than $ 0.1 million, respectively, was recorded for interest and penalties related to income tax items. Teradyne qualifies for a tax holiday in Singapore by fulfilling the requirements of an agreement with the Singapore Economic Development Board under which certain headcount and spending requirements must be met. The tax savings due to the tax holiday for the six months ended June 28, 2026 and June 29, 2025, were $ 14.9 million, or $ 0.09 per diluted share, and $ 3.6 million, or $ 0.02 per diluted share, respectively. In December 2025, Teradyne entered into a new agreement with the Singapore Economic Development Board which extended our Singapore tax holiday under substantially similar terms to the agreement which expired on December 31, 2025. The new tax holiday is scheduled to expire on December 31, 2035. On January 5, 2026, the Organisation for Economic Co-operation and Development (OECD/G20) Inclusive Framework released a ‘side-by-side’ arrangement that, if adopted by foreign jurisdictions, will provide a safe harbor for U.S.-headquartered multinationals. The arrangement would effectively recognize the U.S. tax system as complying with the Pillar Two GloBE rules for fiscal years beginning on or after January 1, 2026. Under this arrangement, the Company expects its U.S.-parented group and foreign subsidiaries to be exempt from the Income Inclusion Rule (IIR) and the Undertaxed Profits Rule (UTPR) in foreign jurisdictions that adopt this safe harbor. As a result, while the ‘side-by-side’ arrangement has not yet been formally adopted in any significant jurisdictions which Teradyne operates in, we do not currently expect to have a material impact from top-up taxes under the IIR and 25   UTPR. Teradyne continues to monitor the implementation of Qualified Domestic Minimum Top-up Taxes (QDMTTs) in foreign jurisdictions, which remain unaffected by the side-by-side arrangement. On July 4, 2025, the One Big Beautiful Bill Act (OBBBA, P.L. 119-21) was enacted, introducing significant changes to U.S. federal income tax law. Key provisions include a permanent extension of 100% bonus depreciation, immediate expensing of research and experimental expenditures, and modifications to the business interest expense deduction. The OBBBA also reduces deduction rates related to foreign income and export sales income. The key provisions of the OBBBA that became effective in 2026 are not expected to have a material impact on Teradyne’s consolidated financial statements for the year ended December 31, 2026. T. SEGMENT INFORMATION Teradyne has three reportable segments (Semiconductor Test, Robotics, and Product Test). As of June 28, 2026 , each of Teradyne’s reportable segments represents an individ ual operating segment. Teradyne’ s Chief Executive Officer serves as the Chief Operating Decision Maker (“CODM”) for Teradyne. The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services inclusive of storage and system level test products. The Robotics segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms and autonomous mobile robots. The Product Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace test, circuit-board test, wireless test systems, high-speed test and measurement and silicon photonics testing. Each reportable segment has a segment manager who is accountable to and maintains regular contact with Teradyne’s CODM to discuss operating activities, financial results, forecasts, and plans for the segment. The CODM uses business segment income (loss) before income taxes predominantly in the annual budgeting and forecasting process. The CODM also uses this measure when making decisions about the allocation of operating and capital resources to each segment. The accounting policies of the business segments are the same as those described in Teradyne’s Annual Report on Form 10-K in Note B: “Accounting Policies.” 26   Segment information for the three and six months ended June 28, 2026, and June 29, 2025, is as follows:     Semiconductor Test     Robotics     Product Test     Total Reportable Segments     Corporate and Eliminations     Consolidated     (in thousands)   Three months ended June 28, 2026                                   Revenues $ 1,121,825     $ 99,917     $ 107,248     $ 1,328,990     $ —     $ 1,328,990   Less:                                   Cost of revenues   438,344       46,508       39,573       524,425       —       524,425   Engineering and development   107,393       13,121       15,419       135,933       —       135,933   Selling and marketing   65,277       22,689       14,602       102,568       —       102,568   General and administrative   28,980       9,069       7,001       45,050       —       45,050   Other segment items (1)(2)   54,511       11,106       12,664       78,281       ( 886 )     77,395   Income (loss) before taxes (2)   427,320       ( 2,576 )     17,989       442,733       886       443,619   Total assets (3)   2,264,787       700,966       595,974       3,561,727       1,363,890       4,925,617   Property additions   80,542       6,215       3,949       90,706       —       90,706   Depreciation and amortization expense   25,273       2,572       5,771       33,616       34       33,650                                       Three months ended June 29, 2025                                   Revenues $ 491,878     $ 74,866     $ 85,053     $ 651,797     $ —     $ 651,797   Less:                                   Cost of revenues   207,201       34,155       33,090       274,446       —       274,446   Engineering and development   82,126       14,069       12,674       108,869       —       108,869   Selling and marketing   52,590       24,241       11,663       88,494       —       88,494   General and administrative   26,132       9,879       5,696       41,707       —       41,707   Other segment items (1)(2)   28,066       11,055       6,378       45,499       ( 3,777 )     41,722   Income (loss) before taxes (2)   95,763       ( 18,533 )     15,552       92,782       3,777       96,559   Total assets (3)   1,349,429       745,839       358,829       2,454,097       1,307,765       3,761,862   Property additions   43,593       3,528       3,287       50,408       —       50,408   Depreciation and amortization expense   23,395       6,068       1,926       31,389       —       31,389                                       Six months ended June 28, 2026                                   Revenues $ 2,232,626     $ 191,175     $ 187,683     $ 2,611,484     $ —     $ 2,611,484   Less:                                   Cost of revenues   852,199       91,693       74,137       1,018,029       —       1,018,029   Engineering and development   200,689       25,383       29,758       255,830       —       255,830   Selling and marketing   129,108       43,877       27,715       200,700       —       200,700   General and administrative   55,819       17,827       13,487       87,133       —       87,133   Other segment items (1)(2)   99,439       15,935       19,890       135,264       5,232       140,496   Income (loss) before taxes (2)   895,372       ( 3,540 )     22,696       914,528       ( 5,232 )     909,296   Total assets (3)   2,264,787       700,966       595,974       3,561,727       1,363,890       4,925,617   Property additions   139,035       9,046       7,358       155,439       —       155,439   Depreciation and amortization expense   49,962       6,899       9,336       66,197       108       66,305                                       Six months ended June 29, 2025                                   Revenues $ 1,034,382     $ 143,853     $ 159,242     $ 1,337,477     $ —     $ 1,337,477   Less:                                   Cost of revenues   409,948       66,447       63,125       539,520       —       539,520   Engineering and development   162,337       29,924       24,213       216,474       —       216,474   Selling and marketing   104,287       48,755       23,400       176,442       —       176,442   General and administrative   52,684       19,744       10,665       83,093       —       83,093   Other segment items (1)(2)   53,561       34,693       13,651       101,905       4,459       106,364   Income (loss) before taxes (2)   251,565       ( 55,710 )     24,188       220,043       ( 4,459 )     215,584   Total assets (3)   1,349,429       745,839       358,829       2,454,097       1,307,765       3,761,862   Property additions   103,325       6,204       6,065       115,594       —       115,594   Depreciation and amortization expense   46,260       12,009       3,432       61,701       ( 10 )     61,691     (1) F or each reportable segment, the other segment items category includes equity and variable compensation, acquired intangible assets amortization, inventory step-up, and restructuring and other charges . (2) I ncluded in Corporate and Eliminations are interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, severance charges, pension and postretirement plan actuarial gains (losses), acquisition and divestiture related expenses, ERP implementation related costs, and an expense for the modification of outstanding equity award s. (3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets. 27   U. EQUITY Stock Repurchase Program In January 2023, Teradyne’s Board of Directors cancelled its January 2021 repurchase program and approved a new repurchase program for up to $ 2.0 billion of common stock. As of January 1, 2023, share repurchases in excess of issuances are subject to a 1 % excise tax, which is included as part of the cost basis of the shares acquired. During the six months ended June 28, 2026, Teradyne repurchased 0.2 million shares of common stock for a total cost of $ 74.2 million at an average price of $ 341.89 per share. The cumulative repurchases under the January 2023 repurchase program as of June 28, 2026, were 12.2 million shares of common stock for $ 1,382.9 million at an average price per share of $ 113.52 . During the six months ended June 29, 2025, Teradyne repurchased 3.0 million shares of common stock for a total cost of $ 277.3 million at an average price of $ 93.67 per share. The total cost of shares acquired includes commissions and related excise tax and is recorded as a reduction to retained earnings. Dividend Holders of Teradyne’s common stock are entitled to receive dividends when they are declared by Teradyne’s Board of Directors. In January 2026 and May 2026 , Teradyne’s Board of Directors declared a quarterly cash dividend of $ 0.13 per share. Dividend payments for the three and six months ended June 28, 2026, were $ 20.3 million and $ 40.7 million , respectively. In January 2025 and May 2025 , Teradyne’s Board of Directors declared a quarterly cash dividend of $ 0.12 per share. Dividend payments for the three and six months ended June 29, 2025, were $ 19.2 million and $ 38.6 million , respectively.     28   Item 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations Statements in this Quarterly Report on Form 10-Q which are not historical facts, so called “forward-looking statements,” are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934, as amended. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those detailed in our filings with the Securities and Exchange Commission. See also Part II, Item 1A of this Quarterly Report on Form 10-Q and Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025. Readers are cautioned not to place undue reliance on these forward-looking statements which reflect management’s analysis only as of the date hereof. We assume no obligation to update these forward-looking statements to reflect actual results or changes in factors or assumptions affecting forward-looking statements, except as may be required by law. Overview We are a leading global provider of automated test equipment and robotics products. Our automated test systems are used to test semiconductors, wireless products, data storage, silicon photonics, and complex electronics systems in many industries including consumer electronics, automotive, industrial, computing, communications, and defense and aerospace industries. Our robotics product offerings consist primarily of collaborative robotic arms and autonomous mobile robots used by global manufacturing, logistics and industrial customers to improve quality and increase manufacturing and material handling efficiency, while reducing costs. Our automated test equipment and robotics products and services include: • semiconductor test (“Semiconductor Test”) systems and instruments; • product test ("Product Test") systems and instruments; and • robotics (“Robotics”) products. The market for our test products is concentrated with a limited number of significant customers accounting for a substantial portion of the purchases of test equipment. A few customers drive significant demand for our products both through direct sales and sales to the customer’s supply partners. We expect that sales of our test products will continue to be concentrated with a limited number of significant customers for the foreseeable future. For the second consecutive quarter, our Semiconductor Test segment revenue, driven primarily by sustained demand in Artificial Intelligence (“AI”) applications across both compute and memory markets, hit a new record high. Continued investment by hyperscalers, vertically integrated producers, and customers in AI data center infrastructure supported the robust compute market revenue. In memory, revenue exceeded $200 million for the third consecutive quarter, reflecting strong demand for high bandwidth memory (“HBM”) and DRAM test solutions supporting AI compute deployments, as well as renewed demand for NAND final test applications. Strong Robotics revenue of $100 million, marked the fifth consecutive quarter of sequential growth, driven primarily by demand from electronics manufacturing and semiconductor customers, which has become the segment's largest end-market. Within Product Test Group, revenue increased 26% year over year and 33% sequentially, reflecting broad-based growth across multiple markets and applications. The current quarter record performance is the result of prior investments and our current strategy and execution model. Looking ahead, we see significant future opportunities, and we are committed to judicious additional investments today, which we believe are required to continue growing our business in 2027. On April 8, 2026, we and HTP Holding SAL (“MultiLane”) formed a joint venture, MultiLane Test Products Holding LLP (“MLTP”), to which MultiLane contributed the assets of its test and measurement business. We obtained a controlling 75% ownership interest in MLTP, which is expected to serve the growing demand from the AI Data Center equipment market by accelerating the development of test solutions for critical high speed data connections. The purchase price of MLTP was approximately $157.8 million, subject to customary post-closing adjustments, and the results will be included in our Product Test Segment. Our capital allocation plan will continue to be balanced between investing in organic and inorganic growth and returning cash to shareholders through share repurchases and dividends. During the first six months of 2026, the aggregate cash consideration paid for acquisitions, net of cash acquired, totaled $165.6 million, primarily due to the acquisition of a controlling interest in MLTP. Additionally, we returned a combined $114.9 million to shareholders through $74.2 million of share buybacks and $40.7 million of dividend payments. Government Regulations We are subject to numerous U.S. and foreign laws and regulations, including, without limitation, tariffs, trade sanctions, trade barriers, trade embargoes, regulations relating to import-export control, technology transfer restrictions, and other laws and regulations. However, our trade compliance program may not identify or prevent all potential violations, and gaps in our program 29   could be discovered, possibly resulting in fines, penalties, or other sanctions as a result. Additionally, U.S. and foreign governmental authorities have taken, and may continue to take, administrative, legislative or regulatory action that could impact our operations. We believe that our operations are in material compliance with applicable trade regulations. The costs we incurred in complying with applicable trade regulations for the six months ended June 28, 2026 were not material, however, compliance with these laws has limited our ability to compete in certain regions. It is possible that future developments, including changes in laws and regulations or government policies, could lead to material costs, and such costs may have a material adverse effect on our future business or prospects. We have paid certain tariffs on imported products under the International Emergency Economic Powers Act (“IEEPA”) since the inception of the IEEPA tariffs in 2025. On April 20, 2026, U.S. Customs and Border Protection (“CBP”) began accepting refund claims related to these tariffs. During the quarter ended June 28, 2026, we began receiving refunds, which did not have a material impact to our financial position or results of operations. We continue to monitor the situation, and we do not expect that any further refunds received will have a material impact on our financial position or results of operations. For information regarding risks associated with import-export control regulations and similar applicable laws and regulations, see Part II - Item 1A “Risk Factors- Risks Related to Legal and Regulatory Compliance” included elsewhere in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025. Critical Accounting Policies and Estimates We have identified the policies which are critical to understanding our business and our results of operations. There have been no significant changes during the six months ended June 28, 2026, to the items disclosed as our critical accounting policies and estimates in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025. Critical accounting estimates are complex and may require significant judgment by management. Changes to the underlying assumptions may have a material impact on our financial condition and results of operations. These estimates may change, as new events occur and additional information is obtained. Actual results could differ significantly from these estimates under different assumptions or conditions. Preparation of Financial Statements and Use of Estimates The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Actual results may differ significantly from these estimates under different assumptions or conditions. 30   SELECTED RELATIONSHIPS WITHIN THE CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS       For the Three Months  Ended     For the Six Months  Ended       June 28, 2026     June 29, 2025     June 28, 2026     June 29, 2025   Percentage of revenues:                         Revenues:                         Products     90 %     80 %     89 %     81 % Services     10       20       11       19   Total revenues     100       100       100       100   Cost of revenues:                         Cost of products     37       36       36       34   Cost of services     4       7       4       7   Total cost of revenues (exclusive of acquired intangible    assets amortization shown separately below)     40       43       40       41   Gross profit     60       57       60       59   Operating expenses:                         Selling and administrative     14       24       14       24   Engineering and development     12       18       11       18   Acquired intangible assets amortization     —       1       —       1   Restructuring and other     —       —       —       1   Total operating expenses     27       43       25       43   Income from operations     33       14       35       16   Non-operating (income) expense:                         Interest income     —       (1 )     —       (1 ) Interest expense     —       —       —       —   Other (income) expense, net     —       —       —       —   Income before income taxes and equity in net earnings of affiliate     33       15       35       16   Income tax provision     5       2       5       2   Income before equity in net earnings of affiliate     28       13       30       14   Equity in net earnings of affiliate     —       (1 )     —       (1 ) Consolidated net income     28       12       30       13   Less: Net income attributable to noncontrolling interests     —       —       —       —   Net income attributable to Teradyne     28 %     12 %     30 %     13 %   31   Results of Operations Second Quarter 2026 Compared to Second Quarter 2025 Revenues Revenues by our reportable segments were as follows:       For the Three Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Semiconductor Test   $ 1,121.8     $ 491.9     $ 629.9   Product Test     107.2       85.1       22.1   Robotics     99.9       74.9       25.0     $ 1,329.0     $ 651.8     $ 677.2     The increase in Semiconductor Test revenues of $629.9 million, or 128.1%, was driven primarily by higher sales in compute and memory related to artificial intelligence applications. The increase in Product Test revenues of $22.1 million, or 26.0%, was driven by increased AI-related demand, combined with growth in Defense and Aerospace. The increase in Robotics revenues of $25.0 million, or 33.4%, was primarily due to higher sales of collaborative robotic arms and autonomous mobile robots. Revenues by country as a percentage of total revenues were as follows (1):       For the Three Months  Ended       June 28, 2026     June 29, 2025   Taiwan     40 %     35 % Korea     20       7   China     12       16   United States     7       12   Singapore     5       3   Europe     4       9   Malaysia     3       4   Thailand     3       2   Philippines     2       5   Japan     1       4   Rest of World     3       3         100 %     100 %   (1) Revenues attributable to a country are based on location of customer site. Gross Profit Our gross profit was as follows:       For the Three Months  Ended             June 28, 2026     June 29, 2025     Dollar/Point Change       (in millions)   Gross profit   $ 794.6     $ 373.0     $ 421.6   Percent of total revenues     59.8 %     57.2 %     2.6     Gross profit as a percent of revenue increased by 2.6 points, primarily due to higher sales and product mix in Semiconductor Test. 32   Selling and Administrative Selling and administrative expenses were as follows:       For the Three Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Selling and administrative   $ 192.5     $ 157.8     $ 34.7   Percent of total revenues     14.5 %     24.2 %         The increase of $34.7 million in selling and administrative expenses was primarily driven by strategic investments in Semiconductor Test and from higher variable compensation across all segments. Engineering and Development Engineering and development expenses were as follows:       For the Three Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Engineering and development   $ 156.3     $ 118.4     $ 37.9   Percent of total revenues     11.8 %     18.2 %         The increase of $37.9 million in engineering and development expenses was primarily driven by strategic investments in Semiconductor Test and from higher variable compensation across all segments. Restructuring and Other During the three months ended June 28, 2026, we recorded $3.0 million of restructuring and other charges, of which $1.5 million were related to acquisition and divestiture related expenses and $1.4 million were severance charges. During the three months ended June 29, 2025, we recorded $2.3 million of severance charges, $0.8 million of which is related to the Robotics restructuring which was initiated during the three months ended March 30, 2025, and impacted approximately 150 employees. During the three months ended June 29, 2025, we made $3.9 million of Robotics severance payments. Interest and Other       For the Three Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Interest income   $ (3.2 )   $ (4.4 )   $ 1.2   Interest expense     3.0       0.8     $ 2.2   Other (income) expense, net     (5.6 )     (2.3 )   $ (3.3 )   Interest expense increased by $2.2 million primarily due to higher debt during a portion of the period. 33   Income (Loss) Before Income Taxes and Equity in Net Earnings of Affiliate       For the Three Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Semiconductor Test   $ 427.3     $ 95.8     $ 331.5   Product Test     18.0       15.6       2.4   Robotics     (2.6 )     (18.5 )     15.9   Corporate and Eliminations (1)     0.9       3.8       (2.9 )   $ 443.6     $ 96.6     $ 347.0     (1) Included in Corporate and Eliminations are interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, severance charges, pension and postretirement plan actuarial gains (losses), and acquisition and divestiture related expenses. The increase in income before income taxes and equity in net earnings of affiliate in Semiconductor Test was driven primarily by higher sales volume in compute and memory related to artificial intelligence applications. The increase in income before income taxes and equity in net earnings of affiliate in Robotics was primarily due to higher sales volume and lower operating expenses primarily as a result of restructuring actions. Income Taxes The effective tax rate for the three months ended June 28, 2026, and June 29, 2025, was 15.1% and 12.7%, respectively. The increase in the effective tax rate from the three months ended June 29, 2025, to the three months ended June 28, 2026, is primarily attributable to lower benefits from tax credits partially offset by increased benefits from equity compensation and a projected shift in the geographic distribution of income.   Six Months 2026 Compared to Six Months 2025 Revenues Revenues by our reportable segments were as follows:       For the Six Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Semiconductor Test   $ 2,232.6     $ 1,034.4     $ 1,198.2   Robotics     191.2       143.9       47.3   Product Test     187.7       159.2       28.5     $ 2,611.5     $ 1,337.5     $ 1,274.0     The increase in Semiconductor Test revenues of $1,198.2 million, or 115.8%, was driven primarily by higher sales in compute and memory primarily related to artificial intelligence applications. The increase in Robotics revenues of $47.3 million, or 32.9%, was primarily due to higher sales of collaborative robotic arms. The increase in Product Test revenues of $28.5 million, or 17.9%, was driven primarily by AI-related demand, combined with growth in Defense and Aerospace. 34   Revenues by country as a percentage of total revenues were as follows (1):       For the Six Months  Ended       June 28, 2026     June 29, 2025   Taiwan     41 %     31 % Korea     20       10   China     11       17   United States     7       12   Europe     6       7   Singapore     4       6   Malaysia     4       3   Philippines     2       4   Thailand     2       2   Japan     1       3   Rest of World     2       5       100 %     100 %   (1) Revenues attributable to a country are based on location of customer site. Gross Profit Our gross profit was as follows:       For the Six Months  Ended             June 28, 2026     June 29, 2025     Dollar/Point Change       (in millions)   Gross profit   $ 1,575.6     $ 788.3     $ 787.3   Percent of total revenues     60.3 %     58.9 %     1.4     Gross profit as a percent of revenue increased by 1.4 points, primarily due to higher sales volume in Semiconductor Test. Selling and Administrative Selling and administrative expenses were as follows:       For the Six Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Selling and administrative   $ 359.3     $ 315.0     $ 44.3   Percent of total revenues     13.8 %     23.6 %         The increase of $44.3 million in selling and administrative expenses was primarily driven by strategic investments in Semiconductor Test and from higher variable compensation across all segments. Engineering and Development Engineering and development expenses were as follows:       For the Six Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Engineering and development   $ 291.8     $ 236.6     $ 55.2   Percent of total revenues     11.2 %     17.7 %         35     The increase of $55.2 million in engineering and development expenses was primarily driven by strategic investments in Semiconductor Test and from higher variable compensation across all segments. Restructuring and Other During the six months ended June 28, 2026, we recorded $6.5 million of restructuring and other charges, of which $3.2 million were related to acquisition and divestiture related expenses and $2.3 million were severance charges. During the six months ended June 29, 2025, we recorded $13.7 million of severance charges, $10.0 million of which is related to the Robotics restructuring which impacted approximately 150 employees, and $2.1 million of which related to Product Test. During the six months ended June 29, 2025, we made $8.1 million of Robotics severance payments. We expect all Robotics severance payments to be made prior to the end of our third quarter. Additionally, we recorded $1.6 million of acquisition and divestiture expenses related primarily to the Quantifi acquisition, and $1.2 million of charges related to lease terminations. Interest and Other       For the Six Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Interest income   $ (5.6 )   $ (9.4 )   $ 3.8   Interest expense     6.1       1.6       4.5   Other (income) expense, net     1.0       3.8       (2.8 )   Interest expense increased by $4.5 million primarily due to outstanding debt balances during portions of 2026. Income (Loss) Before Income Taxes and Equity in Net Earnings of Affiliate       For the Six Months  Ended             June 28, 2026     June 29, 2025     Dollar Change       (in millions)   Semiconductor Test   $ 895.4     $ 251.6     $ 643.8   Product Test     22.7       24.2       (1.5 ) Robotics     (3.5 )     (55.7 )     52.2   Corporate and Eliminations (1)     (5.2 )     (4.5 )     (0.7 )   $ 909.3     $ 215.6     $ 693.7   (1) Included in Corporate and Eliminations are interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, severance charges, pension and postretirement plan actuarial gains (losses), and acquisition and divestiture related expenses. The increase in income before income taxes and equity in net earnings of affiliate in Semiconductor Test was driven primarily by higher compute and memory sales volume, partially offset by higher selling and administrative and engineering and development spending. The increase in income before income taxes and equity in net earnings of affiliate in Robotics was primarily due to higher sales volume and lower operating expenses primarily as a result of restructuring actions. Income Taxes The effective tax rate for the six months ended June 28, 2026, and June 29, 2025, was 14.2% and 12.4%, respectively. The increase in the effective tax rate from the six months ended June 29, 2025, to the six months ended June 28, 2026, is primarily 36   attributable to lower benefits from tax credits partially offset by increased benefits from equity compensation and a projected shift in the geographic distribution of income. Contractual Obligations There have been no changes outside of the ordinary course of business to our contractual obligations as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2025. Liquidity and Capital Resources Sources of Liquidity       June 28, 2026     December 31, 2025     Change       (in millions)   Cash, cash equivalents and marketable securities:                   Cash and cash equivalents   $ 349.5     $ 293.8     $ 55.7   Short-term marketable securities     5.3       28.2       (22.9 ) Long-term marketable securities     162.3       126.3       36.0   Total cash, cash equivalents and marketable securities:   $ 517.1     $ 448.3     $ 68.8                       Short-term debt   $ —     $ 200.0     $ (200.0 )   Our cash, cash equivalents and marketable securities balances increased by $68.8 million in the six months ended June 28, 2026, to $517.1 million. Cash increased primarily as a result of operating cash inflows. Our Third Amended and Restated Revolving Credit Agreement, amended as of November 7, 2023 (the “Credit Agreement”) provides a six-year, senior secured revolving credit facility of $750.0 million (the “Credit Facility”). As of June 28, 2026, we did not have an outstanding balance under the Credit Agreement. The Credit Agreement is set to expire on December 10, 2026. See Note I: “Debt” for more information regarding our Credit Agreement. As of June 28, 2026, we were in compliance with all covenants under the Credit Agreement. We intend to extend the Credit Facility later in 2026. Cash Flows     June 28, 2026     June 29, 2025     Change       (in millions)   Net cash (used for) provided by:                   Operating activities     734.3       343.7       390.6   Investing activities     (338.6 )     (240.2 )     (98.4 ) Financing activities     (341.0 )     (313.6 )     (27.4 ) Effects of exchange rate changes on cash and cash equivalents     1.1       (4.0 )     5.1   Net increase (decrease) in cash and cash equivalents   $ 55.8     $ (214.1 )   $ 269.9                       Net change in operating assets and liabilities, net of businesses acquired     (142.1 )     61.7       (203.8 ) Operating Activities Operating activities during the six months ended June 28, 2026, provided cash of $734.3 million. Changes in operating assets and liabilities, net of businesses acquired used cash of $142.1 million due to a $369.6 million increase in operating assets and a $227.6 million increase in operating liabilities. The increase in operating assets was primarily due to increases in accounts receivable of $302.2 million. The increase in operating liabilities was primarily due to increases in accounts payable and other liabilities and in deferred revenue and customer advances of $121.8 million and $50.9 million, respectively. Operating activities during the six months ended June 29, 2025, provided cash of $343.7 million. Changes in operating assets and liabilities provided cash of $61.7 million due to a $56.7 million decrease in operating assets and a $5.0 million increase in operating liabilities. The decrease in operating assets was primarily due to decreases in accounts receivable and prepayments and other assets of $49.5 million and $30.9 million, respectively, partially offset by a $23.7 million increase in inventories. The increase in 37   operating liabilities was due to increases in accounts payable and other liabilities and in deferred revenue and customer advances of $17.1 million and $13.1 million, respectively, partially offset by decreases in income taxes and retirement plans of $19.6 million and $5.6 million, respectively. Investing Activities Investing activities during the six months ended June 28, 2026, included $165.6 million used for the acquisition of businesses, $155.4 million used for the purchases of property, plant, and equipment, $48.2 million used for the purchases of marketable securities, and $10.0 million used for the purchase of investment in a business, partially offset by $29.6 million in proceeds from sales of marketable securities and $11.0 million in proceeds from maturities of marketable securities. Investing activities during the six months ended June 29, 2025, used cash of $240.2 million due to $144.4 million used for the acquisition of businesses, $114.4 million used for the purchase of property, plant & equipment and $17.2 million used for the purchase of marketable securities, partially offset by $32.6 million and $8.5 million in proceeds from the maturities and sales of marketable securities, respectively. Financing Activities Financing activities during the six months ended June 28, 2026, included $200.0 million in net repayments of borrowings on the revolving credit facility, $74.2 million used for the repurchase of common stock, $41.1 million used for payment related to net settlements of employee stock compensation awards, and $40.7 million utilized for dividend payments, partially offset by $15.1 million from the issuance of common stock under employee stock purchase and stock option plans. Financing activities during the six months ended June 29, 2025, consumed cash of $313.6 million due to $274.9 million used for the repurchase of approximately 3.0 million shares of common stock at an average price of $93.67 per share, $38.6 million utilized for dividend payments and $15.0 million used for payment related to net settlements of employee stock compensation awards, partially offset by $14.8 million from the issuance of common stock under employee stock purchase and stock option plans. Material Cash Requirements In January 2026 and May 2026, our Board of Directors declared a quarterly cash dividend of $0.13 per share. Dividend payments for the three and six months ended June 28, 2026, were $20.3 million and $40.7 million, respectively. In January 2025 and May 2025, our Board of Directors declared a quarterly cash dividend of $0.12 per share. Dividend payments for the three and six months ended June 29, 2025, were $19.2 million and $38.6 million, respectively. In January 2023, our Board of Directors approved a repurchase program for up to $2.0 billion of common stock. During the six months ended June 28, 2026, we repurchased 0.2 million shares of common stock for $74.2 million, which excludes related excise tax, at an average price of $341.89 per share. The cumulative repurchases under the 2023 repurchase program as of June 28, 2026, were 12.2 million shares of common stock for $1,371.5 million, which excludes related excise tax, at an average price per share of $113.52. During the six months ended June 29, 2025, we repurchased approximately 3.0 million shares of common stock for $274.9 million, which excludes related excise tax, at an average price of $93.67 per share. While we have previously declared a quarterly cash dividend and authorized a share repurchase program, we may reduce or eliminate the cash dividend or share repurchase program in the future. Cash dividends and stock repurchases are subject to the discretion of our Board of Directors, which will consider, among other things, our earnings, capital requirements and financial condition. We believe our cash, cash equivalents, marketable securities and senior secured revolving credit facility will be sufficient to pay our quarterly dividend and meet our working capital and expenditure needs for at least the next twelve months. Inflation has not had a significant long-term impact on earnings. As of June 28, 2026, we were in compliance with all covenants under the Credit Agreement. Equity Compensation Plans In addition to our 1996 Employee Stock Purchase Program as discussed in Note M: “Stock-Based Compensation” in our 2025 Annual Report on Form 10-K, we have a 2006 Equity and Cash Compensation Incentive Plan (the “2006 Equity Plan”). 38   The purpose of the 1996 Employee Stock Purchase Plan is to encourage stock ownership by all eligible employees of Teradyne. The purpose of the 2006 Equity Plan is to provide equity ownership and compensation opportunities in Teradyne to our employees, officers and directors. Both plans were approved by our shareholders. Recently Issued Accounting Pronouncements For a description of accounting changes and recent accounting pronouncements, including the expected dates of adoption and estimated effects, if any, on our consolidated financial statements, see Note C: “Recently Issued Accounting Pronouncements” of this Form 10-Q. Item 3: Quantitative and Qualitative Disclosures about Market Risk For quantitative and qualitative disclosures about market risk affecting Teradyne, see Part 2 Item 7A, “Quantitative and Qualitative Disclosures about Market Risk,” in our Annual Report on Form 10-K filed with the SEC on February 19, 2026. There were no material changes in our exposure to market risk from those set forth in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.   Item 4: Controls and Procedures As of the end of the period covered by this report, our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) or Rule 15d-15(b) promulgated under the Exchange Act. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended June 28, 2026, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. 39   PART II. OTHER INFORMATION Item 1: Legal Proceedings We are subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations. Item 1A: Risk Factors In addition to other information set forth in this Form 10-Q, you should carefully consider the factors discussed in Part I, “Item 1A: Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 19, 2026, which could materially affect our business, financial condition or future results. The risk factors described in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, remain applicable to our business. The risks described in our Annual Report on Form 10-K are not the only risks that we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results. 40   Item 2: Unregistered Sales of Equity Securities and Use of Proceeds In January 2023, Teradyne’s Board of Directors cancelled our 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. During the six months ended June 28, 2026, we repurchased 0.2 million shares of common stock for a total cost of $74.2 million at an average price of $341.89 per share. We record share repurchases at cost, which includes broker commissions and related excise taxes. During the six months ended June 29, 2025, we repurchased 3.0 million shares of common stock for $277.3 million at an average price of $93.67 per share. The following table includes information with respect to repurchases we made of our common stock during the three months ended June 28, 2026, (in thousands except per share price):   Period   Total Number of Shares (or Units) Purchased       Average Price Paid per Share (or Unit)       Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs     Maximum Number (or Approximate Dollar Value) of Shares (or Units) that may Yet Be Purchased Under the Plans or Programs (2)   March 30, 2026 - April 26, 2026     2       $ 310.31         —     $ 685,844   April 27, 2026 - May 24, 2026     127       $ 349.13         126     $ 641,928   May 25, 2026 - June 28, 2026     69       $ 369.18         67     $ 617,124       198   (1)     355.66   (1)     193         (1) Includes approximately five thousand shares at an average price of $343.41 withheld from employees for the payment of taxes. (2) As of January 1, 2023, share repurchases net of share issuances are subject to a 1% excise tax under the Inflation Reduction Act. Excise tax incurred is included as part of the cost basis of shares repurchased in the Condensed Consolidated Statements of Equity. We satisfy U.S. federal and state minimum withholding tax obligations due upon the vesting and the conversion of restricted stock units into shares of our common stock, by automatically withholding from the shares being issued, a number of shares with an aggregate fair market value on the date of such vesting and conversion that would satisfy the minimum withholding amount due. Item 4: Mine Safety Disclosures Not Applicable 41     Item 5: Other Information 10b5-1 Trading Plans Our officers (as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (“Section 16 Officers”) and directors from time to time enter into contracts, instructions or written plans for the purchase or sale of our securities that are intended to satisfy the conditions specified in Rule 10b5-1(c) under the Exchange Act for an affirmative defense against liability for trading in securities on the basis of material nonpublic information. We refer to these contracts, instructions, and written plans as “Rule 10b5-1 trading plans” and each one as a “Rule 10b5-1 trading plan.” During our fiscal quarter ended June 28, 2026 , no Section 16 Officers or directors adopted , modified or terminated Rule 10b5-1 trading plans. 42   Item 6: Exhibits   Exhibit Number   Description               31.1   Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) of the Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)   31.2   Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) of the Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)   32.1   Certification of Principal Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)   32.2   Certification of Principal Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)   101.INS   Inline XBRL Instance Document   101.SCH   Inline XBRL Taxonomy Extension Schema with Embedded Linkbase Documents   104   Cover Page Interactive Data File (formatted as Inline XBRL, and contained in Exhibit 101)       *   Management Contract or Compensatory Plan   43   SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.     TERADYNE, INC.   Registrant     /s/ MICHELLE TURNER   Michelle Turner Vice President, Chief Financial Officer and Treasurer (Duly Authorized Officer and Principal Financial Officer) July 31, 2026   44