Rocket Lab Corp (RKLB) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-28 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Rocket Lab Corp (RKLB) CIK: 0001819994 --- Reporting Owner --- Name: Slusky Alexander R CIK: 0001357262 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-28 | Code: S (Open market sale) Shares: -40,000 | Price: $149.10 Total Value: $5,964,092.00 Shares Owned After: 394,675 | Ownership: I (Indirect) | Nature: By Abalone Cove LLLP Footnotes: [F1] The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $149.0000 to $149.4100. The Reporting Person undertakes to provide the Registrant, any securityholder of the Registrant, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. [F2] These shares are held by Abalone Cove LLLP, a limited liability limited partnership, of which the Reporting Person is the sole general partner and of which the Reporting Person and his spouse are the sole limited partners. [Transaction #2] Security: Common Stock Date: 2026-05-28 | Code: S (Open market sale) Shares: -20,000 | Price: $150.00 Total Value: $3,000,000.00 Shares Owned After: 374,675 | Ownership: I (Indirect) | Nature: By Abalone Cove LLLP Footnotes: [F2] These shares are held by Abalone Cove LLLP, a limited liability limited partnership, of which the Reporting Person is the sole general partner and of which the Reporting Person and his spouse are the sole limited partners. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $149.0000 to $149.4100. The Reporting Person undertakes to provide the Registrant, any securityholder of the Registrant, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F2: These shares are held by Abalone Cove LLLP, a limited liability limited partnership, of which the Reporting Person is the sole general partner and of which the Reporting Person and his spouse are the sole limited partners. --- Signature --- /s/ By: /s/ Arjun Kampani as Attorney-in-Fact For: Alexander R. Slusky (2026-06-01)