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Form 8-K

sec.gov

8-K — Rocket Lab Corp

Accession: 0001819994-26-000067

Filed: 2026-10-14

Period: 2026-10-14

CIK: 0001819994

SIC: 3760 (GUIDED MISSILES & SPACE VEHICLES & PARTS)

Item: Regulation FD Disclosure

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — rklb-20261014.htm (Primary)

EX-99.1 (rklb-10142026ex991.htm)

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8-K

8-K (Primary)

Filename: rklb-20261014.htm · Sequence: 1

rklb-20261014

FALSE000181999400018199942026-10-142026-10-14

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): October 14, 2026

ROCKET LAB CORPORATION

(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 Nasdaq Global Select Market

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 October 14, 2026, Rocket Lab Corporation (the “Company”) issued a press release and made available a presentation, 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 October 14, 2026, the Company provided an update on the development of its Neutron rocket and its expected launch schedule. As the team continues development and incorporation of process improvements, the first launch is now anticipated to shift into next year. The Company is progressing through key manufacturing and testing milestones and will provide further updates as work continues.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No. Description

99.1

Press Release of Rocket Lab Corporation dated October 14, 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: October 14, 2026 By: /s/ Adam Spice

Adam Spice

Chief Financial Officer

EX-99.1

EX-99.1

Filename: rklb-10142026ex991.htm · Sequence: 2

Document

MEDIA RELEASE

Exhibit 99.1

Rocket Lab Provides Update on Neutron Development and Adjusts Target Launch Timing

LONG BEACH, Calif., Oct. 14, 2026 – Rocket Lab Corporation (Nasdaq: RKLB) (“Rocket Lab” or “the Company”), a global leader in launch services and space systems, today shared an update on the Neutron launch vehicle development program, including an adjusted schedule for Neutron’s inaugural launch, which is now expected to occur in 2027.

A presentation discussing further details of this Neutron update is hosted on Rocket Lab’s investor relations website at https://investors.rocketlabcorp.com/events-presentations/presentations.

Rocket Lab Media

Murielle Baker

media@rocketlabusa.com

Investor Relations

Patrick Vorenkamp

investors@rocketlabusa.com

About Rocket Lab

Rocket Lab (Nasdaq: RKLB) is an end-to-end space company delivering rockets, satellites, and spacecraft components for commercial, government, and defense missions. Driven by its industry-leading small-lift rockets Electron and HASTE and its upcoming reusable Neutron medium-lift rocket, Rocket Lab delivers reliable and responsive launch for the world’s most important missions from constellation deployment to missile defense. Rocket Lab’s satellites and components have powered more than 1,700 missions in Earth orbit, as well as deep-space exploration of the Moon, Mars, and beyond. Learn more at www.rocketlabcorp.com.

Forward-Looking Statements

This press release, along with the accompanying presentation and remarks, contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements contained in these materials other than statements of historical fact, including, without limitation, statements regarding our launch and space systems operations, launch schedule and window, safe and repeatable access to space, Neutron development, operational expansion and business strategy, backlog, expected revenue, and anticipated mission execution, are forward-looking statements. The words “believe,” “may,” “will,” “estimate,” “potential,” “continue,” “anticipate,” “intend,” “expect,” “strategy,” “future,” “could,” “would,” “project,” “plan,” “target,” and similar expressions are intended to identify forward-looking statements, though not all forward-looking statements use these words or expressions. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including but not limited to the factors, risks and uncertainties included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, as such factors may be updated from time to time in our other filings with the Securities and Exchange Commission (the “SEC”), accessible on the SEC’s website at www.sec.gov and the Investor Relations section of our website at https://investors.rocketlabcorp.com which could cause our actual results to differ materially from those indicated by the forward-looking statements made in these materials. Any such forward-looking statements represent management’s estimates as of the date of this press release. While we may elect to update such forward-looking statements at some point in the future, we disclaim any obligation to do so, even if subsequent events cause our views to change.

rocketlabcorp.com | media@rocketlabusa.com

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