Regulation FD Disclosure. On August 13, 2026, Rocket Lab Corporation (the “Company”) issued a press release announcing the entry into the Equity Distribution Agreement (as defined below). A copy of the press release is attached hereto and furnished herewith as Exhibit 99.1. In addition, on August 13, 2026, the Company issued a press release announcing progress on its previously announced proposed acquisition of Iridium Communications Inc. A copy of the press release is attached hereto and fur…

Results of Operations and Financial Condition. On August 10, 2026, Rocket Lab Corporation (the “Company”) issued a press release announcing its financial results for the second quarter ended June 30, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange Act of 1934, as am…

Entry into a Material Definitive Agreement Agreement and Plan of Merger On June 28, 2026, Rocket Lab Corporation, a Delaware corporation (“Rocket Lab”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Iridium Communications Inc., a Delaware corporation (“Iridium”), Ion Merger Sub I, Inc., a Delaware corporation and an indirect wholly owned subsidiary of Rocket Lab (“Merger Sub I”) and Ion Merger Sub II, LLC, a Delaware limited liability company and an indirect wholl…

Vice President, Corporate Controller and Chief Accounting Officer — Agostino Ricupati: Rocket Lab Corporation hired Agostino Ricupati as Chief Accounting Officer.

Other Events. On May 8, 2026, Rocket Lab Corporation (the “Company”) filed with the Securities and Exchange Commission (the “SEC”) a prospectus supplement to the prospectus included in the Company’s registration statement on Form S-3ASR filed with the SEC on March 11, 2025 (File No. 333-285707), as amended by the Post-Effective Amendment No. 1 filed with the SEC on May 27, 2025 (the “Registration Statement”), covering the resale by certain selling stockholders of up to 2,277,002 shares of the…

Results of Operations and Financial Condition. On May 7, 2026, Rocket Lab Corporation (the “Company”) issued a press release announcing its financial results for the first quarter ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange Act of 1934, as amende…

Other Items. On April 14, 2026, the Company completed the acquisition of all of the issued and outstanding ordinary shares of Mynaric pursuant to the Stock Purchase Agreement dated September 25, 2025 (together with the ancillary documents thereto and as amended, the “Purchase Agreement”), by and among the Company, Rocket Lab USA, Inc., a Delaware corporation and wholly-owned subsidiary of the Company (“Buyer”), OC III LVS LIII LP, a Delaware limited partnership (“OC III”) and CO Finance II LV…

The Company’s (as defined below) common stock, $0.0001 par value (“Common Stock”), issued in connection with the Acquisition (as defined below) was issued in reliance upon an exemption from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), pursuant to Section 4(a)(2) thereof and/or Regulation D thereunder, as a transaction by an issuer not involving a public offering.

Chairman and Chief Executive Officer — Sir Peter Beck: Mr. Beck voluntarily reduced his salary and forfeited unvested RSUs, redirecting the funds towards company priorities.

Results of Operations and Financial Condition. On February 26, 2026, Rocket Lab Corporation (the “Company”) issued a press release announcing its financial results for the fourth quarter and the year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange…

Other Events. On December 17, 2025, the Company, through its wholly owned subsidiary Rocket Lab USA, Inc., entered into an agreement with the SDA to design, manufacture and provide operations and sustainment for 18 satellites. The contract with SDA has a total value of $816 million, which includes a base amount of $806 million and options totaling $10 million. Work under the agreement will begin immediately with final delivery of the satellites for launch expected in 2029. The agreement allow…

Results of Operations and Financial Condition. On November 10, 2025, Rocket Lab Corporation (the “Company”) issued a press release announcing its financial results for the third quarter ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange Act of 1934,…

Director — Matt Ocko: Mr. Ocko resigned from the Board of Directors.

Other Items. On September 25, 2025, Rocket Lab Corporation, a Delaware corporation (the “Company”), entered into a Stock Purchase Agreement (together with the ancillary documents thereto, the “Purchase Agreement”), by and among the Company, Rocket Lab USA, Inc., a Delaware corporation and wholly-owned subsidiary of the Company (“Buyer”), OC III LVS LIII LP, a Delaware limited partnership (“OC III”) and CO Finance II LVS I LLC, a Delaware limited liability company (“COF II” and together with O…

The Company Common Stock consideration to be issued, if any, in connection with the Transaction will be issued in reliance upon an exemption from the registration requirements of the Securities Act of 1933, as amended, pursuant to Section 4(a)(2) thereof and/or Regulation D thereunder, as a transaction by an issuer not involving a public offering.

Other Items. On September 15, 2025, Rocket Lab Corporation (the “Company”) entered into an ATM Equity Offering Sales Agreement (the “Sales Agreement”) with BofA Securities, Inc., Cantor Fitzgerald & Co., BTIG, LLC, KeyBanc Capital Markets Inc., Citizens JMP Securities, LLC, Needham & Company, LLC and Roth Capital Partners, LLC (collectively, the “Sales Agents”), pursuant to which the Company may offer and sell, from time to time, shares of its common stock, par value $0.0001 per share (the “S…

The filing describes a new compensation plan for senior executives.

Other Events. On August 12, 2025, the Company’s wholly-owned subsidiary Rocket Lab USA, Inc. completed the previously announced Acquisition of GEOST, paying closing consideration of $125 million in cash and issuing 3,057,588 shares of the Company’s common stock, $0.0001 par value (“Common Stock”). The agreement (the “Purchase Agreement”) related to the Acquisition provides for an additional potential earnout of up to $50 million of cash payments to the seller tied to future revenue targets of…

Results of Operations and Financial Condition. On August 7, 2025, Rocket Lab Corporation (the “Company”) issued a press release announcing its financial results for the second quarter ended June 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange Act of 1934, as ame…

Entry into a Material Definitive Agreement. On May 22, 2025, Rocket Lab USA, Inc. (the “Predecessor”) entered into a Stock Purchase Agreement (the “Purchase Agreement”), by and among the Predecessor, LightRidge Solutions Holdings LP (“LightRigde Solutions”), and LightRidge Interco Solutions Holdings, Inc. (“LightRidge Interco”), which provides for, among other things, the Company’s purchase and acquisition of all of the issued and outstanding shares of common stock of LightRidge Interco, the…

The Company Common Stock consideration to be issued in connection with the Transaction will be issued in reliance upon an exemption from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof and/or Regulation D thereunder, as a transaction by an issuer not involving a public offering.

Results of Operations and Financial Condition. On May 8, 2025, Rocket Lab USA, Inc. (the “Company”) issued a press release announcing its financial results for the first quarter ended March 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange Act of 1934, as amended…

Regulation FD Disclosure. On March 11, 2025, Rocket Lab USA, Inc. (the “Company”) issued a press release announcing the filing of the prospectus supplement and entry into the Sales Agreement (as defined below). A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2. of Form 8-K, the information contained or incorporated in this Item 7.01, including the press release furnished herewith as Exhibit 99.1, shall not be…

Other Items. On March 11, 2025, the Company entered into an ATM Equity Offering Sales Agreement (the “Sales Agreement”) with BofA Securities, Inc., Cantor Fitzgerald & Co., Stifel, Nicolaus & Company, Incorporated and TD Securities (USA) LLC (collectively, the “Sales Agents”), pursuant to which the Company may offer and sell, from time to time, shares of its common stock, par value $0.0001 per share (the “Shares”) having an aggregate offering price of up to $500,000,000 through the Sales Agen…

Results of Operations and Financial Condition. On February 27, 2025, Rocket Lab USA, Inc. (the “Company”) issued a press release announcing its financial results for the fourth quarter and the year ended December 31, 2024. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 2.02, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 (the “Section”) of the Securities Exchange A…