rklb-20260121 FALSE 0001819994 0001819994 2026-01-21 2026-01-21

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): January 21, 2026

ROCKET LAB CORP ORATION
(Exact name of Registrant as Specified in Its Charter)

Delaware 001-39560 39-2182599
(State or Other Jurisdiction
of Incorporation) (Commission File Number) (IRS Employer
Identification No.)

3881 McGowen Street  
Long Beach , California
  90808
(Address of Principal Executive Offices)   (Zip Code)

Registrant’s Telephone Number, Including Area Code: 714 465-5737
Not Applicable
(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐     Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐     Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐     Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐     Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
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 $0.0001 per share   RKLB   The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth 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. ☐

Item 7.01 Regulation FD Disclosure.
On January 21, 2026, Rocket Lab Corporation (the “Company”) issued a press release, providing an update relating to the development of its Neutron rocket. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.
The information set forth under this Item 7.01 and in Exhibit 99.1 is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not to be incorporated by reference into any filing of the registrant under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in any such filing, except as shall be expressly set forth by specific reference in such a filing.

Item 8.01 Other Events.
On January 21, 2026, the Company issued a press release, providing an update relating to the development of its Neutron rocket. Qualification testing of the Stage 1 tank resulted in a rupture during a hydrostatic pressure trial. The team is reviewing the Stage 1 test data, which will determine the extent of the impact to Neutron’s launch schedule.

Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.

Exhibit   Description
99.1   Press Release of Rocket Lab Corporation, dated January 21, 2026

104   Cover Page Interactive Data File (embedded within the Inline XBRL document).

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 hereunto duly authorized.

      ROCKET LAB CORPORATION
       
Date: January 21, 2026 By: /s/ Adam Spice
      Adam Spice
Chief Financial Officer