X0607 3 2026-03-26 0 0001819994 Rocket Lab Corp RKLB 0002127567 Clevenger Marvin Bradford false 3881 MCGOWEN STREET LONG BEACH CA 90808 0 1 0 0 President, Rocket Lab USA Inc. Common Stock 492435 D Includes 282,679 restricted stock units ("RSUs") granted to the Reporting Person under the Rocket Lab Corporation 2021 Stock Option and Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. By: /s/ Arjun Kampani, as Attorney-in-Fact For: Marvin B. Clevenger 2026-04-06