X0206 3 2021-08-25 0 0001819994 Rocket Lab USA, Inc. RKLB 0001881842 Beck Peter C/O ROCKET LAB USA, INC. 3881 MCGOWEN STREET LONG BEACH CA 90808 1 1 1 0 President, CEO and Chairman 0001880895 Beck Kerryn C/O ROCKET LAB USA, INC. 3881 MCGOWEN STREET LONG BEACH CA 90808 0 0 1 0 0001880893 Butler Warren C/O ROCKET LAB USA, INC. 3881 MCGOWEN STREET LONG BEACH CA 90808 0 0 1 0 0001881791 Equatorial Trust C/O ROCKET LAB USA, INC. 3881 MCGOWEN STREET LONG BEACH CA 90808 0 0 1 0 0001881857 Peek Street Equatorial Trustee Ltd C/O ROCKET LAB USA, INC. 3881 MCGOWEN STREET LONG BEACH CA 90808 0 0 1 0 Common Stock 54551250 I By Equatorial Trust Earnout Rights (common stock) Common Stock 4408241 I By Equatorial Trust Held directly by Equatorial Trust (the "Trust"), a family trust settled by Peter Beck and Kerryn Beck. Peek Street Equatorial Trustee Limited (the "Trustee") is the trustee of the Trust and each of Peter Beck, 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. Each reporting owner disclaims his, her or its beneficial ownership of the reported securities except to the extent of his, her or its pecuniary interest. Each earnout right represents a contingent right (based on the reporting owners' ownership of common stock) to receive one share of the issuer's common stock. The earnout rights vest upon the issuer's common stock achieving a closing price per share equal to or greater than $20.00 for a period of at least 20 trading days out of 30 consecutive trading days during the period commencing on the 90th day following August 25, 2021 and ending on the 180th day following August 25, 2021. If the target closing stock price is not achieved during such period, the earnout rights will be forfeited. Exhibit 24.1 - Power of Attorney Exhibit 24.2 - Power of Attorney Exhibit 24.3 - Power of Attorney Exhibit 24.4 - Power of Attorney Exhibit 24.5 - Power of Attorney /s/ Robert M.P. Hurwitz, as Attorney-in-Fact for Peter Beck 2021-09-07 /s/ Robert M.P. Hurwitz, as Attorney-in-Fact for Kerryn Beck 2021-09-07 /s/ Robert M.P. Hurwitz, as Attorney-in-Fact for Warren Butler 2021-09-07 /s/ Robert M.P. Hurwitz, as Attorney-in-Fact for Equatorial Trust 2021-09-07 /s/ Robert M.P. Hurwitz, as Attorney-in-Fact for Peek Street Equatorial Trustee Limited 2021-09-07