SEC FORM 3 SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
 
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1. Name and Address of Reporting Person*
Clevenger Marvin Bradford

(Last) (First) (Middle)
3881 MCGOWEN STREET

(Street)
LONG BEACH CA 90808

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/26/2026
3. Issuer Name and Ticker or Trading Symbol
Rocket Lab Corp [ RKLB ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
checkbox checked Officer (give title below) Other (specify below)
President, Rocket Lab USA Inc.
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
checkbox checked Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 492,435(1) D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. 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 04/06/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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                               POWER OF ATTORNEY

    The undersigned hereby constitutes and appoints each of Arjun Kampani,
Dietrick Miller, and Janine Wong, acting and signing documents individually, as
the true and lawful attorney-in-fact and agent of the undersigned:

    (1) to prepare and execute for and on behalf of the undersigned, in the
        undersigned's capacity as a officer of Rocket Lab Corporation (the
        "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the
        Securities Exchange Act of 1934 and the rules thereunder;

    (2) to do and perform any and all acts for and on behalf of the undersigned
        which may be necessary or desirable to prepare and execute any such Form
        3, 4, or 5, prepare and execute any amendment or amendments thereto, and
        timely file such form with the United States Securities and Exchange
        Commission and any stock exchange or similar authority; and

    (3) to take any other action of any type whatsoever in connection with the
        foregoing which, in the opinion of any such attorney-in-fact, may be of
        benefit to, in the best interest of, or legally required by, the
        undersigned, it being understood that the documents executed by any such
        attorney-in-fact on behalf of the undersigned pursuant to this Power of
        Attorney shall be in such form and shall contain such terms and
        conditions as such attorney-in-fact may approve in such attorney-in-
        fact's discretion.

    The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that each attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this Power of Attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16(a) or Section 16(b) of the Securities Exchange Act of 1934 or
the rules thereunder.

    This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to all
attorneys-in-fact.

    IN WITNESS WHEREOF, the undersigned has duly executed this Power of
Attorney.


Dated:  March 30, 2026


                                   /s/ Marvin Clevenger
                                   ____________________________
                                   Marvin Clevenger