10-Q – 2026-04-30 – klac-20260331.htm

R&D expenses during the nine months ended March 31, 2026 increased compared to the nine months ended March 31, 2025 primarily due to increases in employee-related expenses of $87.6 million as a result of additional headcount and higher employee compensation and benefit costs, and engineering project material costs of $31.9 million.
Our future operating results will depend significantly on our ability to make products and provide services that have a competitive advantage in our marketplace. To do this, we believe that we must continue to make substantial and focused investments in our R&D. We remain committed to product development in new and emerging technologies.

Selling, General and Administrative

Three Months Ended March 31, Q3 FY26
vs.
Q3 FY25
(Dollar amounts in thousands) 2026 2025
SG&A expenses $ 291,134 $ 248,905 $ 42,229  17  %
SG&A expenses as a percentage of total revenues 9  % 8  %

SG&A expenses during the three months ended March 31, 2026 increased compared to the three months ended March 31, 2025 primarily due to increases in provision for credit losses of $23.1 million, employee-related expenses of $14.9 million as a result of additional headcount and higher employee compensation and benefit costs, and facilities-related expense of $6.6 million.

(Dollar amounts in thousands) Nine Months Ended March 31, Q3 FY26 YTD
vs.
Q3 FY25 YTD
2026 2025
SG&A expenses $ 840,041  $ 767,028  $ 73,013  10  %
SG&A expenses as a percentage of total revenues 8  % 9  %

SG&A expenses during the nine months ended March 31, 2026 increased compared to the nine months ended March 31, 2025 primarily due to increases in provision for credit losses of $26.1 million, facilities-related expense of $20.3 million, and employee-related expenses of $17.6 million as a result of additional headcount and higher employee compensation and benefit costs.

Restructuring Charges
Restructuring charges were $0.2 million and $0.6 million for the three months ended March 31, 2026 and 2025, respectively. Restructuring charges were $0.9 million and $5.6 million for the nine months ended March 31, 2026 and 2025, respectively. For additional information, refer to Note 17 “Restructuring Charges” to our Condensed Consolidated Financial Statements.

Interest Expense and Other Expense (Income), Net
Other expense (income), net is comprised primarily of fair value adjustments and realized gains or losses on sales of marketable and non-marketable securities, gains or losses from revaluations of certain foreign currency denominated assets and liabilities as well as foreign currency contracts, interest-related accruals (such as interest and penalty accruals related to our tax

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obligations) and interest income earned on our invested cash, cash equivalents and marketable securities.
(Dollar amounts in thousands) Three Months Ended March 31, Q3 FY26
vs.
Q3 FY25
2026 2025
Interest expense $ 70,423 $ 71,889 $ (1,466) (2) %
Other expense (income), net $ (79,675) $ (35,930) $ (43,745) (122) %
Interest expense as a percentage of total revenues 2  % 2  %
Other expense (income), net as a percentage of total revenues (2) % (1) %

Interest expense during the three months ended March 31, 2026 was comparable to the three months ended March 31, 2025, as average outstanding debt was essentially unchanged.
The change in other expense (income), net during the three months ended March 31, 2026 compared to the three months ended March 31, 2025 was primarily due to a net fair value gain of $31.9 million from an equity security, favorable foreign exchange fluctuations of $12.4 million, and higher interest income of $4.1 million.

(Dollar amounts in thousands) Nine Months Ended March 31, Q3 FY26 YTD
vs.
Q3 FY25 YTD
2026 2025
Interest expense $ 211,166  $ 229,041  $ (17,875) (8) %
Other expense (income), net $ (160,874) $ (121,323) $ (39,551) (33) %
Interest expense as a percentage of total revenues 2  % 3  %
Other expense (income), net as a percentage of total revenues (2) % (1) %

Interest expense during the nine months ended March 31, 2026 decreased compared to the nine months ended March 31, 2025 primarily due to reduced interest expense following our $750.0 million debt repayment in the second quarter of fiscal 2025.
The change in other expense (income), net during the nine months ended March 31, 2026 compared to the nine months ended March 31, 2025 was primarily due to a net fair value gain of $35.1 million from an equity security, favorable foreign exchange fluctuations of $13.4 million, partially offset by lower interest income of $4.3 million.

Provision for Income Taxes
The following table provides details of income taxes:

Three Months Ended March 31, Nine Months Ended March 31,
(Dollar amounts in thousands) 2026 2025 2026 2025
Income before income taxes $ 1,416,761 $ 1,264,433 $ 4,056,540  $ 3,315,649 
Provision for income taxes $ 215,771 $ 176,017 $ 588,828  $ 456,855 
Effective tax rate 15.2  % 13.9  % 14.5  % 13.8  %

The effective tax rate during the three months ended March 31, 2026 was higher compared to the three months ended March 31, 2025, primarily due to a decrease in the proportion of earnings generated in jurisdictions with tax rates lower than the U.S. statutory rates and a decrease in the proportion of U.S. earnings eligible for the Foreign Derived Intangible Income deduction, partially offset by a decrease in our Global Intangible Low-Taxed Income.
The effective tax rate during the nine months ended March 31, 2026 was higher compared to the nine months ended March 31, 2025, primarily due to a decrease in the proportion of earnings generated in jurisdictions with tax rates lower than the U.S. statutory rates and a decrease in the proportion of U.S. earnings eligible for the Foreign Derived Intangible Income deduction, partially offset by a decrease in our Global Intangible Low-Taxed Income and a $230.4 million goodwill impairment charge during the nine months ended March 31, 2024 which is non-deductible for income tax.
Our future effective income tax rate depends on various factors, such as tax legislation, the geographic composition of our pre-tax income, the amount of our pre-tax income as business activities fluctuate, non-deductible expenses incurred in connection with acquisitions, R&D credits as a percentage of aggregate pre-tax income, non-taxable or non-deductible increases or decreases in the assets held within our Executive Deferred Savings Plan, the tax effects of employee stock activity and the effectiveness of our tax planning strategies. We also continue to monitor the adoption of Pillar Two relating to the global minimum tax in each of our tax jurisdictions to evaluate its impact on our effective income tax rate. For some of the

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jurisdictions that have adopted Pillar Two in their tax legislation, it was effective for us beginning in our fiscal year ended June 30, 2025.
For discussions on tax examinations, assessments and certain related proceedings, see Note 12 “Income Taxes” to our Condensed Consolidated Financial Statements.

LIQUIDITY AND CAPITAL RESOURCES

As of As of
(Dollar amounts in thousands) March 31, 2026 June 30, 2025
Cash and cash equivalents $ 1,787,010 $ 2,078,908
Marketable securities 3,170,928 2,415,715
Total cash, cash equivalents and marketable securities $ 4,957,938 $ 4,494,623
Percentage of total assets 29  % 28  %

  Nine Months Ended March 31,
(In thousands) 2026 2025
Cash flows:
Net cash provided by operating activities $ 3,236,649 $ 2,916,912
Net cash provided by (used in) investing activities (1,016,978) 122,864
Net cash used in financing activities (2,508,530) (3,155,874)
Effect of exchange rate changes on cash and cash equivalents (3,039) (3,009)
Net decrease in cash and cash equivalents $ (291,898) $ (119,107)

Cash, Cash Equivalents and Marketable Securities
As of March 31, 2026, our cash, cash equivalents and marketable securities totaled $4.96 billion, compared to the $4.49 billion balance as of June 30, 2025. Refer to below discussions of sources and uses of cash during the nine months ended March 31, 2026. As of March 31, 2026, $1.09 billion of our $4.96 billion of cash, cash equivalents and marketable securities were held by our foreign subsidiaries and branch offices. We have recorded appropriate provisions for income or withholding taxes that may result from future repatriations of this balance.
Cash Flows Provided by Operating Activities
We typically finance our liquidity requirements through cash generated from our operations. Net cash provided by operating activities during the nine months ended March 31, 2026 was $3.24 billion compared to $2.92 billion during the nine months ended March 31, 2025. This increase was primarily due to an increase in customer and other collections of approximately $960 million primarily driven by higher shipments, a decrease in income tax payments of approximately $73 million and a decrease in other tax payments of approximately $30 million; partially offset by increases in accounts payable payments of approximately $580 million and employee-related payments of approximately $165 million.
Cash Flows Used in Investing Activities
Net cash used in investing activities during the nine months ended March 31, 2026 was $1.02 billion compared to $122.9 million of net cash provided during the nine months ended March 31, 2025. This increase in cash used was primarily due to increases in net purchases of available-for-sale securities of $1.11 billion, and capital expenditures of $51.8 million, partially offset by a $16.5 million increase in proceeds from capital-related government assistance.
Cash Flows Used in Financing Activities
Net cash used in financing activities during the nine months ended March 31, 2026 was $2.51 billion compared to $3.16 billion during the nine months ended March 31, 2025. This decrease in cash used was primarily due to a $750.0 million debt repayment during the nine months ended March 31, 2025 and a decrease in common stock repurchases of $5.5 million, partially offset by increases in payment of dividends and dividend equivalents of $101.9 million and tax withholding payments related to vested and released restricted stock units (“RSU”) of $12.7 million.

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Stock Repurchases
The shares of common stock repurchased under our stock repurchase program have reduced our basic and diluted weighted-average shares outstanding for the nine months ended March 31, 2026 and 2025. The total amount of stock repurchases during the nine months ended March 31, 2026 and 2025 were $1.72 billion for both periods. The stock repurchase program is intended, in part, to mitigate the potential dilutive impact related to our equity incentive plans and shares issued in connection with our Employee Stock Purchase Program as well as to return excess cash to our stockholders. As of March 31, 2026, an aggregate of $10.31 billion was available for repurchase under our stock repurchase program, which reflects an increase in the authorized repurchase amount of $7.00 billion in the third quarter of fiscal 2026.
Cash Dividends
During the three months ended March 31, 2026, our Board of Directors declared a regular quarterly cash dividend of $1.90 per share on our outstanding common stock, which was paid on March 3, 2026 to our stockholders of record as of the close of business on February 17, 2026. During the same period in fiscal year ended June 30, 2025, our Board of Directors declared and paid a regular quarterly cash dividend of $1.70 per share on our outstanding common stock. The total amount of regular quarterly cash dividends and dividend equivalents paid during the three months ended March 31, 2026 and 2025 was $248.8 million and $225.8 million, respectively. The total amount of regular quarterly cash dividends and dividend equivalents paid during the nine months ended March 31, 2026 and 2025 was $752.5 million and $650.6 million, respectively. The amount of accrued dividend equivalents payable for regular quarterly cash dividends on unvested RSUs with dividend equivalent rights as of March 31, 2026 and June 30, 2025 was $15.8 million and $13.3 million, respectively. These amounts will be paid upon vesting of the underlying unvested RSUs as described in Note 9 “Equity and Long-term Incentive Compensation Plans” to our Condensed Consolidated Financial Statements.
Senior Notes
As of March 31, 2026, we had an aggregate principal amount of senior, unsecured notes totaling $5.95 billion (collectively, “Senior Notes”) with due dates ranging from fiscal 2029 through fiscal 2063. For additional information on these Senior Notes, see Note 7 “Debt” to our Condensed Consolidated Financial Statements. As of March 31, 2026, we were in compliance with all of our covenants under the Indenture associated with the Senior Notes.
Revolving Credit Facility
We have in place a Credit Agreement (“Credit Agreement”) for an unsecured Revolving Credit Facility (“Revolving Credit Facility”) with a maturity date of July 3, 2030 that allows us to borrow up to $1.50 billion. Subject to the terms of the Credit Agreement, the Revolving Credit Facility may be increased by an amount up to $500.0 million in the aggregate. As of March 31, 2026, we had no outstanding borrowings under the Revolving Credit Facility. We were in compliance with all covenants under the Credit Agreement as of March 31, 2026 (the net leverage ratio was 0.54 to 1.00, compared to a maximum net leverage ratio of 3.25 to 1.00 on a quarterly basis covering the trailing four consecutive fiscal quarters for each fiscal quarter). Considering our current liquidity position, short-term financial forecasts and ability to prepay the Revolving Credit Facility, if necessary, we expect to continue to be in compliance with our financial covenants at the end of our fiscal year ending June 30, 2026.
For additional information on the Revolving Credit Facility, see Note 7 “Debt” to our Condensed Consolidated Financial Statements.
Material Cash Requirements
For details regarding our debt and other material cash commitments, refer to Note 7 “Debt” and Note 14 “Commitments and Contingencies,” respectively, to our Condensed Consolidated Financial Statements. For additional details regarding our material cash requirements, refer to “Material Cash Requirements” in the “Liquidity and Capital Resources” section of Part II, Item 7 “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 June 30, 2025.
Off-Balance Sheet Arrangements
As of March 31, 2026, we did not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on our financial position, changes in financial condition, revenues and expenses, results of operations, liquidity, capital expenditures or capital resources that are material to investors. Refer to Note 14 “Commitments and Contingencies” to our Condensed Consolidated Financial Statements for information related to indemnification obligations.

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Working Capital
Working capital was $7.60 billion as of March 31, 2026, which represents an increase of $986.4 million compared to our working capital of $6.61 billion as of June 30, 2025. As of March 31, 2026, our principal sources of liquidity consisted of $4.96 billion of cash, cash equivalents and marketable securities, as well as $1.50 billion availability under our Revolving Credit Facility. Our liquidity may be affected by many factors, some of which are based on the normal ongoing operations of the business, spending for business acquisitions, and other factors such as uncertainty in the global and regional economies and the semiconductor, semiconductor-related and electronic device industries. Although cash requirements will fluctuate based on the timing and extent of these factors, we believe that cash generated from operations, together with the liquidity provided by existing cash and cash equivalents balances, marketable securities and our Revolving Credit Facility, will be sufficient to satisfy our liquidity requirements associated with working capital needs, capital expenditures, cash dividends, stock repurchases and other contractual obligations for at least the next 12 months.
Credit Ratings
Our credit ratings as of March 31, 2026 are summarized below:

Rating Agency Rating
Fitch Inc. A
Moody’s Investors Service A2
S&P Global Ratings A-

Factors that can affect our credit ratings include changes in our operating performance, the economic environment, conditions in the semiconductor and semiconductor capital equipment industries, our financial position, material acquisitions and changes in our business strategy.

ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
There have been no material changes in our interest rate risk, marketable equity security risk or foreign currency risk since our Annual Report on Form 10-K for the fiscal year ended June 30, 2025. Refer to “Quantitative and Qualitative Disclosures About Market Risk” contained in Part II, Item 7A of our Annual Report on Form 10-K for our fiscal year ended June 30, 2025 for a complete description of our market risk.

ITEM 4.    CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures and Related CEO and CFO Certifications
Evaluation of Disclosure Controls and Procedures
We conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act (“Disclosure Controls”) as of the end of the period covered by this Quarterly Report on Form 10-Q (this “Report”) required by Exchange Act Rules 13a-15(b) or 15d-15(b). The Disclosure Controls evaluation was conducted under the supervision and with the participation of our management, including our Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”). Based on this evaluation, the CEO and CFO have concluded that, as of the end of the period covered by this Report, our Disclosure Controls were effective at a reasonable assurance level.
Attached as exhibits to this Report are certifications of the CEO and CFO that are required in accordance with Rule 13a-14 of the Exchange Act. This Controls and Procedures section includes the information concerning the controls evaluation referred to in the certifications, and it should be read in conjunction with the certifications for a more complete understanding of the topics presented.
Definition of Disclosure Controls
Disclosure Controls are controls and procedures designed to reasonably ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act, such as this Report, is recorded, processed, summarized and reported within the time periods specified in the U.S. Securities and Exchange Commission’s rules and forms. Disclosure Controls are also designed to provide reasonable assurance that such information is accumulated and communicated to our management, including our CEO and CFO, as appropriate to allow timely decisions regarding required disclosure. Our Disclosure Controls include components of our internal control over financial reporting, which consists of control processes designed to provide reasonable assurance regarding the reliability of our financial reporting and the preparation of financial statements in accordance with generally accepted accounting principles in the United States of America. To the extent that components of our

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internal control over financial reporting are included within our Disclosure Controls, they are included in the scope of our annual controls evaluation.
Limitations on the Effectiveness of Disclosure Controls
Our management, including our CEO and CFO, does not expect that our Disclosure Controls or internal control over financial reporting will prevent all error and fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision making can be faulty and that breakdowns can occur because of simple errors or mistakes. Controls can also be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the controls. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving our stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.
Changes in Internal Control over Financial Reporting
There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the most recent fiscal quarter covered by this Report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS
The information set forth above under Note 13 “Litigation and Other Legal Matters” to our Condensed Consolidated Financial Statements in Item 1 of Part 1 is incorporated herein by reference.

ITEM 1A.    RISK FACTORS
Other than the risk factors listed below, there have been no material changes in our risk factors since our Annual Report on Form 10-K for the fiscal year ended June 30, 2025. Refer to “Risk Factors” contained in Part I Item 1A of our Annual Report on Form 10-K for our fiscal year ended June 30, 2025 for a complete description of our risk factors. Any of these risks, as well as risks unknown to us or that we believe are currently immaterial, could have a material adverse impact on our business, financial condition or results of operations.
Over the past several years, there have been a variety of rules and regulations issued by Commerce that have had an impact on our ability to sell certain products and provide certain services to certain customers in China. These rules and regulations may significantly harm our business, results of operations, financial condition and cash flows in future periods, unless we are able to obtain required licenses.
We maintain significant operations outside the United States, and existing and evolving trade restrictions imposed by the U.S. and other governments could significantly disrupt our global operations. The U.S. government has tightened export controls for commodities, software, and technology (collectively, “items”) destined to China over the past several years. These controls have included, for example, restrictions on exporting certain items to military end users and for military end uses, the addition of numerous entities to the U.S. Entity List (a list of parties that are generally ineligible to receive U.S.-regulated items without prior licensing from Commerce), and the creation of new licensing requirements that apply to the export, re-export, and transfer of certain foreign-made items that are the direct product of U.S. origin technology or produced by a plant or major component of a plant that itself is the direct product of U.S. origin technology and which are destined to Huawei or its affiliates and other specified companies on the U.S. Entity List, and other facilities in China where the production of advanced node IC occurs.
In October 2022, Commerce published the 2022 BIS Rules (the “2022 BIS Rules”) that introduced restrictions related to semiconductor, semiconductor manufacturing, supercomputer, and advanced computing items and end uses. These rules impose restrictions on our ability to sell, ship and support certain equipment and otherwise conduct business with certain counterparties, primarily including China-based companies involved in advanced semiconductor manufacturing. Further, the 2022 BIS Rules impose restrictions on the activities of U.S. persons with respect to certain items that are not subject to the Export Administration Regulations (“EAR”), which departs from Commerce’s typical practice of controlling items that are subject to the EAR, and could further restrict our ability to conduct business in China. In October 2023, Commerce issued the 2023 BIS Rules (the “2023 BIS Rules”) designed to update export controls on advanced computing semiconductors and semiconductor manufacturing equipment, as well as items that support supercomputing applications and end-uses, to certain D1, D4 and/or D5 countries in Supplement No. 1 of Part 740 of the U.S. EAR, including China. The 2023 BIS Rules adjust the parameters included in the 2022 BIS Rules that determine whether an advanced computing chip is restricted and impose new measures to address risks of circumvention of the controls established by the 2022 BIS Rules.
In December 2024 and January 2025, Commerce again issued incremental 2024 BIS Rules and 2025 BIS Rules, adding even more companies to the U.S. Entity List and revising the definition of advanced DRAM, further restricting our ability to provide certain items and services to facilities in China producing advanced DRAM ICs.
In September 2025, Commerce released an interim final rule that further expands export control restrictions and licensing requirements for foreign entities 50% or more directly or indirectly owned by one or more listed parties on the U.S. Entity List, Military End-User List, and certain entities on the Specially Designated Nationals and Block Persons List, which Commerce has labeled the “Affiliates Rule.” The new rule increases compliance requirements with the EAR by imposing on exporters, re-exporters, and transferors of items subject to the EAR a responsibility to know the ownership of the parties to a transaction. In November 2025, the BIS suspended the Affiliates Rule for one year until November 2026.
Commerce may continue to add China-based entities to the U.S. Entity List and impose other end use or end user export restrictions, which could disrupt or prevent our product shipment, and further disrupt our revenue recognition, business operations and our ability to support our customers in China.
These rules and regulations may significantly harm our business unless we are able to obtain required licenses. We will continue to apply for export licenses, when required, in an effort to avoid disruption to our and our customers’ operations, but

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there can be no assurance that export licenses applied for by either us or our customers, now or in the future, will be granted. To the extent Commerce does issue licenses to us or to our customers, such licenses may have a short duration or require us to satisfy various conditions. If pending and future export license applications are not granted, or additional restrictions are imposed, or if regulators adopt new interpretations of existing regulations, the potential impact on us could be material by disrupting our supply chain and product shipment, impairing our ability to complete product development in a timely manner, or our ability to support existing customers of covered products or supply customers of covered products outside the impacted regions, and requiring us to transition certain operations out of one or more of the identified countries. Failure to obtain export licenses has harmed and could continue to harm our backlog, requiring us to return substantial deposits received from customers in China for purchase orders, and/or further limiting our ability to meet our contractual obligations and sell our products or provide services to our customers in China. In addition, the U.S. export restrictions on semiconductors and semiconductor technology to China and Chinese customers may reduce the need for our products and make it easier for our China-based competitors to develop and sell their own products and take market share from us.
We may lose revenue in future periods related to anticipated sales to customers in China unless we are able to replace their orders with other customer orders for which either an export license has been obtained or is not required. Our revenue from sales of products and provision of services to customers in China was 33%, 43% and 27% for fiscal years 2025, 2024 and 2023, respectively, and future revenue from China as a percentage of our overall revenue may decline as a result of the current and future Commerce rules and regulations.
Additionally, the Chinese government has adopted, and may further adopt, new regulations, in response to U.S. government actions, which could adversely affect our ability to do business in China.
We have faced delays and could face additional delays or denials in the export of our tools by regulatory agencies for national security or other regulatory concerns in the countries in which we do business, which could negatively affect our results of operations and timing of revenue recognition. We have controls and procedures designed to maintain compliance with U.S. and other applicable export control laws and regulations; however, we cannot guarantee that such controls and procedures will be successful in preventing violations or allegations of violations, of increasingly complex and often conflicting regulations worldwide. Recently, some of our products destined for China have been held up by U.S. Customs and Border Protection due to questions about the nature of the customer or about the capabilities of our products. We cannot make any assurance that products that have been held up will be cleared for shipment in a timely manner or without a license. Shipment delays or cancellations could have an adverse effect on our financial condition and results of operations. The complexity and evolving nature of the rules and regulations, and the fact that Commerce or other relevant regulators might adopt interpretations of regulations that differ from those of the Company, increase our risk of non-compliance.
Any violations by us of applicable export laws and regulations could result in significant civil and criminal penalties, including fines and criminal proceedings against the Company or responsible employees, a denial of export privileges, suspension or debarment. Our employees, customers, suppliers or other third parties with whom we work may also engage in conduct for which the Company might be held responsible. We could face significant compliance, litigation or settlement costs and diversion of management’s attention from our business as a result. Further, the Company may be subject to negative publicity or reputational harm, resulting in reduced demand for our products, employee attrition and other negative impact on our business, results of operations, financial condition and cash flows.
Recently announced and future U.S. tariffs or other restrictions placed on imports, retaliatory trade measures taken by other countries and resulting trade wars may have a material adverse impact on our results of operations.
In 2025, the U.S. implemented a number of tariffs on goods imported into the U.S., on a country and industry-specific basis (including aluminum, copper and steel). While some of the U.S. Tariffs have been paused, certain U.S. Tariffs are currently in effect, including a base tariff on nearly all imports into the U.S., certain reciprocal tariffs by country, and certain sectoral tariffs on copper, aluminum and steel, among others. In retaliation to the tariffs imposed on U.S. imports, a number of other countries announced reciprocal tariffs on goods imported from the U.S. While most countries paused their reciprocal tariffs on U.S. imported goods, those reciprocal tariffs could be reinstated at any time. Tariffs imposed by the U.S. on goods imported into the U.S. and tariffs imposed by other countries on U.S. goods imported into those countries may continue to evolve.
In April 2025, Commerce announced the initiation of investigations into the effects on U.S. national security of imports of semiconductors under Section 232 of the Trade Expansion Act of 1962. The scope of the investigations include semiconductors, semiconductor manufacturing equipment and their derivative products including semiconductor substrates and bare wafers, legacy chips, leading-edge chips, microelectronics and other components. While the results of the investigations are currently unknown, they may result in additional tariffs and trade restrictions which may adversely impact our business.

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In February 2026, the U.S. Supreme Court ruled that tariffs imposed under the International Emergency Economic Powers Act were not authorized, creating uncertainty around the status of prior tariffs, potential refund processes and the scope of future presidential tariff authority. This ruling adds volatility to an already fluid tariff environment and may result in rapid changes in tariff rates, shifts in enforcement, delays in customs processing and increased uncertainty in supply chain and capital planning for us and our customers.
The U.S. Tariffs have increased our cost of revenues due to the increase in the cost of importing foreign sourced components to our U.S. facilities to build the products that we manufacture in the U.S. Tariffs imposed on U.S. goods by other countries may harm demand for our products from customers in those regions, or may cause our customers in those regions to push out or cancel previously placed purchase orders. In addition, we have had to return deposits given to us by our customers upon cancellation of their purchase orders. Moreover, tariffs can make it difficult for us and our customers and suppliers to make and execute business and capital equipment investment plans or increase supply chain complexity, which may have an impact on our ability to source the materials necessary to manufacture our products.
Our efforts to address these risks, such as through operational adjustments and pricing strategies, may not be successful. Such efforts may need time to take effect and may have an adverse impact on our results of operations.
Unless rescinded or exemptions apply, tariffs and any escalations in the trade war could significantly harm our business, financial condition and results of operations.
We rely upon certain critical information systems for our daily business operations. Our inability to use or access our information systems at critical points in time could unfavorably impact our business operations.
Our global operations are dependent upon certain information systems, including telecommunications, the internet, our corporate intranet, network communications, email and various computer hardware and software applications. System failures or malfunctions, such as difficulties with our customer and supplier relationship management systems, could disrupt our operations and our ability to timely and accurately process and report key components of our financial results. Our enterprise resource planning (“ERP”) system is integral to our ability to accurately and efficiently maintain our books and records, record transactions, provide critical information to our management, and prepare our financial statements. We are currently upgrading our ERP system, with implementation expected to be completed in the first quarter of fiscal year 2027. Implementation of an upgrade to an ERP system requires the investment of significant resources and could lead to data migration issues, administrative and technical problems, and delays. Moreover, once our ERP system is upgraded, it may not operate as we expect it to. Any disruptions or difficulties that may occur in connection with our ERP system or other systems (whether in connection with the regular operation, periodic enhancements, modifications or upgrades of such systems or the integration of our acquired businesses into such systems, or due to cybersecurity events such as ransomware attacks, including attacks on the information systems of our business partners and other third parties) could adversely affect our ability to complete important business processes, such as the evaluation of our internal controls over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act of 2002. Any of these events could have an adverse effect on our business, operating results and financial condition.
We are predominantly uninsured for losses and interruptions caused by terrorist acts and acts of war. If international political instability or geopolitical tensions continue or increase, our business and results of operations could be harmed.
The threat of terrorism targeted at, or acts of war in, the regions of the world in which we do business increases the uncertainty in our markets. Any act of terrorism or war that affects the economy or the industries we serve could adversely affect our business. Increased international political instability or geopolitical tensions in various parts of the world, disruption in air transportation and further enhanced security measures as a result of terrorist attacks may hinder our ability to do business and may increase our costs of operations.
We maintain significant operations in Israel. Since the establishment of the State of Israel in 1948, a number of armed conflicts have taken place between Israel and its Arab neighbors, and a state of hostility varying in degree and intensity has led to security and economic challenges for Israel. Persistent hostilities involving Iran and Iran-backed groups, including Hezbollah in Lebanon and Hamas in the Gaza Strip, have involved missile strikes against civilian targets in various parts of Israel and attacks on marine vessels traversing the Red Sea. The recent escalation of conflicts in the region has heightened instability, disrupted airspace, and increased freight and insurance costs. Disruptions in shipping routes in the Red Sea could result in delays in shipping our products to customers, which could delay the timing of revenue recognition and create uncertainty related to timeliness of shipments from the region. In addition, some of our employees in Israel are obligated to perform annual reserve duty in the Israel Defense Forces, and may be called to active military duty in emergency circumstances. The ongoing conflicts, including additional military actions, retaliatory measures, sanctions, cyberattacks, or other governmental or market responses, could lead to further disruption of global energy supplies, heighten inflationary pressures on our input costs, adversely affect global supply chains, commodity prices, currency exchange rates, financial markets and overall

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macroeconomic conditions. These developments could impact our ability to operate our business directly and indirectly through a similar impact on our suppliers and customers.
A change in our effective tax rate can have a significant adverse impact on our business.
We earn profits in, and are therefore potentially subject to taxes in, the U.S. and numerous foreign jurisdictions, including Singapore and Israel, the countries in which we earn the majority of our non-U.S. profits. Due to economic, political or other conditions, tax rates in those jurisdictions may be subject to significant change. A number of factors may adversely impact our future effective tax rates, such as the jurisdictions in which our profits are determined to be earned and taxed; changes in the tax rates imposed by those jurisdictions; expiration of tax holidays in certain jurisdictions that are not renewed; the resolution of issues arising from tax audits with various tax authorities; changes in the valuation of our deferred tax assets and liabilities; adjustments to estimated taxes upon finalization of various tax returns; increases in expenses not deductible for tax purposes, including write-offs of acquired in-process research and development and impairment of goodwill in connection with acquisitions; changes in available tax credits; changes in stock-based compensation expense; changes in tax laws or the interpretation of such tax laws; changes in generally accepted accounting principles; and the repatriation of earnings from outside the U.S. for which we have not previously provided for U.S. taxes. A change in our effective tax rate can materially and adversely impact our results from operations.
In addition, changes to U.S. tax laws will significantly impact how U.S. multinational corporations are taxed on U.S. and foreign earnings. On July 4, 2025, the enactment of the One Big Beautiful Bill Act (“OBBBA”) provides for several permanent changes to the U. S. tax code including, among other items, modifying the Global Intangible Low-Taxed Income (“GILTI”) and Foreign-Derived Intangible Income (“FDII”) rules that were included in the Tax Cuts and Jobs Act, which was enacted into law on December 22, 2017.
The OBBBA renames GILTI to Net Controlled Foreign Corporation (“CFC”) Tested Income (“NCTI”) and modifies the percentage of foreign earnings under the GILTI regime that is taxable in the U.S. from 50% to 40% for tax years beginning after December 31, 2025. It also renames FDII to Foreign-Derived Deduction Eligible Income (“FDDEI”) and modifies the percentage of U.S. earnings under the FDII regime that is not subject to tax in the U.S. from 37.5% to 33.34% for tax years beginning after December 31, 2025. The net impact of the changes provided by the OBBBA and interpretations of such law may have a material and adverse impact to our effective tax rate.
On August 16, 2022, the enactment of the Inflation Reduction Act (“IRA”) introduced a corporate alternative minimum tax (“CAMT”) that was effective for us beginning in the quarter ended September 30, 2023. The CAMT applies a 15% minimum income tax rate on certain large corporations. Although we were not subject to the CAMT in our fiscal year ended June 30, 2025, the enactment of the OBBBA and interpretations of such law may result in our subjection to CAMT liability in future periods, which can have a material and adverse impact to our future effective tax rate.
Numerous countries are evaluating their existing tax laws due, in part, to recommendations made by the Organization for Economic Co-operation and Development’s (“OECD”) Base Erosion and Profit Shifting (“BEPS”) project. The OECD continues to advance its work under the BEPS 2.0 initiative to develop the framework for Pillar Two, which aims to implement a global minimum tax of 15%. Many countries have enacted or drafted legislation using the Pillar Two framework to propose domestic tax laws requiring a minimum tax rate of 15% (“top-up tax”) on income earned in the respective countries. The tax liability from top-up tax may have a material and adverse impact to our effective tax rate.
Our business would be harmed if we do not receive parts sufficient in number and performance to meet our production requirements and product specifications in a timely and cost-effective manner.
We use a wide range of materials in the production of our products, including custom electronic and mechanical components, and we use numerous suppliers to supply these materials. Generally, we do not have guaranteed supply arrangements with our suppliers. Because of the variability and uniqueness of customers’ orders, we do not maintain an extensive inventory of materials for manufacturing. Through our business interruption planning, we seek to minimize the risk of production and service interruptions and/or shortages of key parts by, among other things, monitoring the financial stability of key suppliers, identifying (but not necessarily qualifying) possible alternative suppliers and maintaining appropriate inventories of key parts. Although we make reasonable efforts to ensure that parts are available from multiple suppliers, certain key parts are available only from a single supplier or a limited group of suppliers. Also, key parts we obtain from some of our suppliers incorporate the suppliers’ proprietary IP; in those cases, we are increasingly reliant on third parties for high-performance, high-technology components, which reduces the amount of control we have over the availability and protection of the technology and IP that is used in our products. In addition, if certain of our key suppliers experience liquidity issues and are forced to discontinue operations, which is a heightened risk, especially during economic downturns, it could affect their ability to deliver parts and could result in delays for our products. Similarly, especially with respect to suppliers of high-technology components, our suppliers themselves have increasingly complex supply chains, and delays or disruptions at any stage of their supply chains

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may prevent us from obtaining parts in a timely manner and result in delays for our products, or our suppliers might pass on the cost of inflation to us while we are unable to adjust pricing with our own customers.
In April 2025, the Chinese government imposed export controls on seven of the seventeen elements classified as rare earth elements. In October 2025, the Chinese government imposed additional restrictions and licensing requirements on certain rare earth elements, some of which became effective immediately on the announcement date and other portions of the regulations became effective in November 2025. The Chinese government imposed export controls on an additional five rare earth elements and certain license requirements for items made outside of China that incorporate controlled rare earth elements. It is estimated that China controls about 70% of the worldwide mining of rare earth elements, 90% of the separation and processing of those elements and 93% of the magnets manufactured from those elements. Rare earth elements are critical to certain components contained in our products. If our suppliers are unable to provide the components necessary to make our products because of restrictions placed on their access to rare earth elements or products derived from rare earth elements, our business, financial condition and results of operations could be materially harmed. Our operating results and business may be adversely impacted if we are unable to obtain parts to meet our production requirements and product specifications, or if we are able to do so only on unfavorable terms.
A supplier may discontinue production of a particular part for any number of reasons, including the supplier’s financial condition or business operational decisions, which would require us to purchase, in a single transaction, a large number of such discontinued parts in order to ensure that a continuous supply of such parts remains available to our customers. Such “end-of-life” parts purchases could result in significant expenditures by us in a particular period, and, ultimately, any unused parts may result in a significant inventory write-off, either of which could have an adverse impact on our financial condition and results of operations for the applicable periods. Recently, a few large suppliers have discontinued manufacturing certain DRAM chips that are incorporated in a number of our products, and the resulting shortage has caused a dramatic increase in the prices to acquire these chips. Our efforts to procure these chips have contributed to an increase in purchase commitments in fiscal 2026. We estimate that the additional costs to procure these DRAM chips will continue to have an adverse impact on our gross margin in calendar 2026. If we are unable to acquire adequate supply of such chips or acquire them in a timely or cost-controlled manner, our results of operations could be harmed.

ITEM 2.    UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
Equity Repurchase Plans
The following is a summary of stock repurchases for the three months ended March 31, 2026:

Period Total Number of Shares Purchased Average Price Paid per Share (3)
Total Number of Shares Purchased As Part of Publicly Announced Plans or Programs (1)
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (1)(2)(3)

January 1, 2026 to January 31, 2026 131,371  $ 1,431.47  131,371  $ 3,750,463,056 
February 1, 2026 to February 28, 2026 190,647  $ 1,405.79  190,647  $ 3,482,453,585 
March 1, 2026 to March 31, 2026 117,578  $ 1,441.02  117,578  $ 10,313,021,679 
Total 439,596  439,596 
__________________
(1) Our Board of Directors has authorized a program that permits us to repurchase our common stock, including a $7.00 billion increase approved by the Board in the third quarter of fiscal 2026. As of March 31, 2026, $10.31 billion remained available for repurchases under our repurchase program. All shares in the table were purchased pursuant to our publicly announced repurchase program.
(2) Our stock repurchase program has no expiration date and may be suspended at any time. Future repurchases of shares of our common stock under our repurchase program may be effected through various different repurchase transaction structures including isolated open market transactions, accelerated share repurchase agreements or systematic repurchase plans, subject to market conditions, applicable legal requirements and other factors.
(3) Average price paid per share and approximate dollar value of shares that may yet be purchased under the plans or programs exclude the excise tax imposed on certain stock repurchases as part of the Inflation Reduction Act of 2022, or other fees, costs or expenses that may be applicable to the repurchases.

ITEM 3.    DEFAULTS UPON SENIOR SECURITIES
None.

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ITEM 4.    MINE SAFETY DISCLOSURES
Not applicable.

ITEM 5.    OTHER INFORMATION
Rule 10b5-1 Trading Plans Adopted by Officers and Directors During the Third Quarter
During the three months ended March 31, 2026, the following officers of the Company adopted trading plans, or amendments to existing trading plans, to sell and/or gift shares of our common stock that have been or will be issued upon the vesting of RSUs, or purchased in our Employee Stock Purchase Plan, that are intended to satisfy the affirmative defense conditions set forth in Rule 10b5-1(c) under the Securities Exchange Act. The material terms of the trading plans other than pricing conditions are set forth in the table below:

Name of Officer
Title of Officer
Date of Adoption
Duration
Maximum Number of Shares to be Sold (1) (2)

Virendra Kirloskar
Senior Vice President and Chief Accounting Officer February 18, 2026 366 days (3)
1,759  
Mary Beth Wilkinson
Executive Vice President, Chief Legal Officer and Corporate Secretary February 2, 2026 365 days (4)
11,343  

(1) Due to pricing conditions in the trading plans, the number of shares actually sold under the trading plans may be less than the maximum number of shares that can be sold. Shares sold under plans upon the vesting of performance-based RSUs where the performance conditions have not been met at the time of plan adoption or are to be purchased in the future under our employee stock purchase plan are calculated at the maximum number of shares that may be issued, with fractional shares disregarded.
(2) For RSUs that have not vested, the maximum number of shares to be sold does not take into account shares withheld for taxes.
(3) Mr. Kirloskar’s trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on August 7, 2026; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on February 18, 2027 .
(4) Ms. Wilkinson’s trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on August 7, 2026; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on February 1, 2027 .

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ITEM 6.    EXHIBITS

Incorporated by Reference
Exhibit Number Exhibit Description Form File Number Exhibit Number Filing Date
3.1
Restated Certificate of Incorporation
10-K No. 000-09992 3.1 August 16, 2019

3.2
Amended and Restated By-Laws
8-K No. 000-09992 3.1 November 7, 2025

10.1
Calendar Year 2026 Executive Incentive Plan*+

31.1
Certification of Chief Executive Officer under Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934

31.2
Certification of Chief Financial Officer under Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934

32
Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 ^

101.INS XBRL Instance Document - the instance document does not appear in the Interactive Data file because its XBRL tags are embedded within the Inline XBRL document

101.SCH XBRL Taxonomy Extension Schema Document

101.CAL XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF XBRL Taxonomy Extension Definition Linkbase Document

101.LAB XBRL Taxonomy Extension Label Linkbase Document

101.PRE XBRL Taxonomy Extension Presentation Linkbase Document

104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

^ Furnished herewith
* Denotes a management contract, plan or agreement.
+ Certain portions of this document that constitute confidential information have been redacted in accordance with Regulation S-K, Item 601(b)(10).

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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.

    KLA CORPORATION
    (Registrant)

April 29, 2026     /s/ RICHARD P. WALLACE
(Date)     Richard P. Wallace
    President and Chief Executive Officer
(Principal Executive Officer)

April 29, 2026     /s/ BREN D. HIGGINS
(Date)     Bren D. Higgins
    Executive Vice President and Chief Financial Officer
(Principal Financial Officer)

April 29, 2026     /s/ VIRENDRA A. KIRLOSKAR
(Date)     Virendra A. Kirloskar
    Senior Vice President and Chief Accounting Officer
(Principal Accounting Officer)