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Form SCHEDULE 13D/A Rocket Lab Corp Filed by: Beck Peter

March 30, 2026 5:33 PM





If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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SCHEDULE 13D




Comment for Type of Reporting Person:
(1) The amounts set forth in rows 7, 9 and 11 above consist of 491,930 shares of common stock, par value $0.0001 per share ("Common Stock") of Rocket Lab Corporation, a Delaware corporation (the "Company"), which Peter Beck has acquired through settlement of restricted stock units. (2) The amounts set forth in rows 8, 10 and 11 above include 45,951,250 shares of Common Stock issuable upon conversion of Series A Convertible Participating Preferred Stock of the Company, $0.0001 par value per share ("Preferred Stock"), held directly by Equatorial Trust (the "Trust"). Mr. Beck is one of three directors of Peek Street Equatorial Trustee Limited, the trustee of the Trust (the "Trustee"). The Trust, the Trustee and each of the three directors of the Trustee are deemed to beneficially own the shares, with each of the Trust and the Trustee having sole voting and dispositive powers over the shares and each director of the Trustee having shared voting and dispositive power over the shares. (3) The percentage of class set forth in row 13 above was calculated based on 572,468,968 shares of Common Stock, outstanding as of March 20, 2026, as set forth in the Company's Preliminary Proxy Statement filed with the Securities and Exchange Commission (the "Commission") on March 27, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) The amounts set forth in rows 7, 9 and 11 above consist of 45,951,250 shares of Common Stock issuable upon conversion of Preferred Stock held directly by the Trust. The Trust, the Trustee and each of the three directors of the Trustee are deemed to beneficially own the shares, with each of the Trust and the Trustee having sole voting and dispositive powers over the shares and each director of the Trustee having shared voting and dispositive power over the shares. (3) The percentage of class set forth in row 13 above was calculated based on 572,468,968 shares of Common Stock, outstanding as of March 20, 2026, as set forth in the Company's Preliminary Proxy Statement filed with the Commission on March 27, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) The amounts set forth in rows 7, 9 and 11 above consist of 45,951,250 shares of Common Stock issuable upon conversion of Preferred Stock held directly by the Trust. The Trust, the Trustee and each of the three directors of the Trustee are deemed to beneficially own the shares, with each of the Trust and the Trustee having sole voting and dispositive powers over the shares and each director of the Trustee having shared voting and dispositive power over the shares. (3) The percentage of class set forth in row 13 above was calculated based on 572,468,968 shares of Common Stock, outstanding as of March 20, 2026, as set forth in the Company's Preliminary Proxy Statement filed with the Commission on March 27, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) The amounts set forth in rows 8, 10 and 11 above consist of 45,951,250 shares of Common Stock issuable upon conversion of Preferred Stock held directly by the Trust. The Trust, the Trustee and each of the three directors of the Trustee are deemed to beneficially own the shares, with each of the Trust and the Trustee having sole voting and dispositive powers over the shares and each director of the Trustee having shared voting and dispositive power over the shares. (3) The percentage of class set forth in row 13 above was calculated based on 572,468,968 shares of Common Stock, outstanding as of March 20, 2026, as set forth in the Company's Preliminary Proxy Statement filed with the Commission on March 27, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) The amounts set forth in rows 8, 10 and 11 above consist of 45,951,250 shares of Common Stock issuable upon conversion of Preferred Stock held directly by the Trust. The Trust, the Trustee and each of the three directors of the Trustee are deemed to beneficially own the shares, with each of the Trust and the Trustee having sole voting and dispositive powers over the shares and each director of the Trustee having shared voting and dispositive power over the shares. (3) The percentage of class set forth in row 13 above was calculated based on 572,468,968 shares of Common Stock, outstanding as of March 20, 2026, as set forth in the Company's Preliminary Proxy Statement filed with the Commission on March 27, 2026.


SCHEDULE 13D


Beck Peter
Signature:/s/ Peter Beck
Name/Title:Peter Beck
Date:03/30/2026
Equatorial Trust
Signature:/s/ Peter Beck
Name/Title:Peter Beck, Director and Attorney-in-Fact for Peek Street Equatorial Trustee Limited, its trustee
Date:03/30/2026
Peek Street Equatorial Trustee Ltd
Signature:/s/ Peter Beck
Name/Title:Peter Beck, Director and Attorney-in-Fact for Peek Street Equatorial Trustee Limited
Date:03/30/2026
Beck Kerryn
Signature:/s/ Peter Beck
Name/Title:Peter Beck, Attorney-in-Fact for Kerryn Beck
Date:03/30/2026
Butler Warren
Signature:/s/ Peter Beck
Name/Title:Peter Beck, Attorney-in-Fact for Warren Butler
Date:03/30/2026

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