# EDGAR Filing Document

**Accession Number:** 0002127567
**File Stem:** 0002001011-26-000040
**Filing Date:** 2026-4
**Character Count:** 7770
**Document Hash:** a885e28c4b30abbcfa73f03db3710893
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002001011-26-000040.hdr.sgml**: 20260406

**ACCESSION NUMBER**: 0002001011-26-000040

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260326

**FILED AS OF DATE**: 20260406

**DATE AS OF CHANGE**: 20260406

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Clevenger Marvin Bradford
- **CENTRAL INDEX KEY:** 0002127567

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39560
- **FILM NUMBER:** 26842668

**MAIL ADDRESS:**
- **STREET 1:** 5509 DRAYTON STREET NORTHEAST
- **CITY:** ALBUQUERQUE
- **STATE:** NM
- **ZIP:** 87111
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Rocket Lab Corp
- **CENTRAL INDEX KEY:** 0001819994
- **STANDARD INDUSTRIAL CLASSIFICATION:** GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 392182599
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 3881 MCGOWEN STREET
- **CITY:** LONG BEACH
- **STATE:** CA
- **ZIP:** 90808
- **BUSINESS PHONE:** 714-465-5737

**MAIL ADDRESS:**
- **STREET 1:** 3881 MCGOWEN STREET
- **CITY:** LONG BEACH
- **STATE:** CA
- **ZIP:** 90808

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Rocket Lab USA, Inc.
- **DATE OF NAME CHANGE:** 20210831

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Vector Acquisition Corp
- **DATE OF NAME CHANGE:** 20200803

## Ex-24

```

                               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

```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Clevenger Marvin Bradford<br><sub>(Last) (First) (Middle)</sub><br>3881 MCGOWEN STREET<br><sub>(Street)</sub><br>LONG BEACH, CA 90808<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Rocket Lab Corp [ RKLB ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-26 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_President, Rocket Lab USA Inc._ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 492435<sup>(1)</sup> | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(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.

**Signature:** By: /s/ Arjun Kampani, as Attorney-in-Fact For: Marvin B. Clevenger  
**Date:** 2026-04-06

### Remarks:

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 4 (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.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**