Peter Beck - 26 May 2026 Form 4 Insider Report for Rocket Lab Corp (RKLB)

Reporting relationship: CEO, Director
Issuer ticker: RKLB
Reported as of: 26 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 28 May 2026, 20:35:22 UTC
Prior SEC filing: 04 Mar 2026
Next SEC filing: 08 Jul 2026
Source filing: View source filing
Reporting owner signature: By: /s/Arjun Kampani, as Attorney-in-Fact For: Peter Beck

Key filing fact

Peter Beck filed Form 4 for Rocket Lab Corp (RKLB) on 28 May 2026.

Key facts

This page summarizes Peter Beck's Form 4 filing for Rocket Lab Corp (RKLB).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 28 May 2026, 20:35.

Change

Previous filing in this sequence was filed on 04 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001881842 Primary reporting owner

Beck Peter

Relationship: CEO, Director
Address: 3881 MCGOWEN STREET, LONG BEACH
Signature: By: /s/Arjun Kampani, as Attorney-in-Fact For: Peter Beck
Signature date: 28 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

RKLB transaction

Common Stock

Conversion of derivative security

Transaction value
Shares: +5,000,000
Change %
Price: $0.000000^*
Shares after: 5,000,000
Date: 26 May 2026
Ownership: by Trust
Footnotes: F1

RKLB holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 491,930
Date: 26 May 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

RKLB transaction Derivative

Series A Convertible Participating Preferred Stock

Conversion of derivative security

Transaction value
Shares: -5,000,000
Change %: -11%
Price: $0.000000^*
Shares after: 40,951,250
Date: 26 May 2026
Ownership: by Trust
Underlying class: Common Stock
Underlying amount: 5,000,000
Exercise price
Footnotes: F1, F2, F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Held directly by the Equatorial Trust (the "Trust"), a family trust settled by the Reporting Person and Kerryn Beck. Peek Street Equatorial Trustee Limited (the "Trustee") is the trustee of the Trust and each of the Reporting Person, Kerryn Beck and Warren Butler serve as a director of the Trustee with shared voting and investment control of the shares and, as a result, the Trustee and each such individual is deemed to be an indirect beneficial owner of the reported securities. The Reporting Person disclaims his beneficial ownership of the reported securities except to the extent of his pecuniary interest.

Footnote F2

Each share of Series A Convertible Participating Preferred Stock, $0.0001 par value per share ("Series A Preferred Stock"), is convertible into one share of common stock, par value $0.0001 per share ("Common Stock") of the Registrant at any time at the option of the holder, subject to certain adjustments such as in connection with stock dividends, distributions, stock splits and stock combinations.

Footnote F3

On May 26, 2026, the Trust optionally converted 5,000,000 shares of Series A Preferred Stock into 5,000,000 shares of Common Stock pursuant to the terms of the Series A Preferred Stock Certificate of Designation. The Trust converted the shares for purposes of satisfying delivery of shares of Common Stock to the broker for sales to be made in future months under a Rule 10b5-1 Plan adopted by the Trust on March 27, 2026.

Footnote F4

Each share of Series A Preferred Stock will automatically convert into one share of Common Stock, upon the earliest to occur of (a) any sale, assignment, transfer, conveyance, hypothecation or other transfer or disposition of such share of Series A Preferred Stock, except for certain permitted transfers described in the Registrant's amended and restated certificate of incorporation, as amended; (b) the first date on which the Reporting Person shall no longer serve as the Chief Executive Officer or such other executive officer position of the Registrant as approved by its Board of Directors; (c) the death or permanent disability of the Reporting Person; or (d) the first date on which the outstanding shares of Series A Preferred Stock no longer represent at least 5% of the beneficial ownership of the Registrant's outstanding Common Stock.

SEC remarks

On March 30, 2026, the Reporting Person entered into a restricted stock unit cancellation agreement with the Registrant, pursuant to which the Reporting Person voluntarily forfeited and cancelled all unvested restricted stock units held by the Reporting Person, representing an aggregate of 392,155 shares of the Registrant's common stock.