Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Beck Peter 2. Issuer Name and Ticker or Trading Symbol Rocket Lab Corp [RKLB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CEO (Last) (First) (Middle) 3881 MCGOWEN STREET 3. Date of Earliest Transaction (Month/Day/Year) 07/06/2026 (Street) LONG BEACH, CA 90808 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 07/06/2026 S 213,106(1) D $92.8118(2) 4,786,894 I by Trust(3) Common Stock 07/06/2026 S 198,726(1) D $93.7391(4) 4,588,168 I by Trust(3) Common Stock 07/06/2026 S 84,387(1) D $94.6872(5) 4,503,781 I by Trust(3) Common Stock 07/06/2026 S 138,478(1) D $95.8913(6) 4,365,303 I by Trust(3) Common Stock 07/06/2026 S 169,457(1) D $96.7767(7) 4,195,846 I by Trust(3) Common Stock 07/06/2026 S 77,684(1) D $97.7041(8) 4,118,162 I by Trust(3) Common Stock 07/06/2026 S 76,178(1) D $98.6982(9) 4,041,984 I by Trust(3) Common Stock 07/06/2026 S 8,202(1) D $99.6155(10) 4,033,782 I by Trust(3) Common Stock 07/06/2026 S 14,266(1) D $100.525(11) 4,019,516 I by Trust(3) Common Stock 07/06/2026 S 5,713(1) D $101.5698(12) 4,013,803 I by Trust(3) Common Stock 07/07/2026 S 342,190(1) D $83.5758(13) 3,671,613 I by Trust(3) Common Stock 07/07/2026 S 458,494(1) D $84.3064(14) 3,213,119 I by Trust(3) Common Stock 07/07/2026 S 257,803(1) D $85.3307(15) 2,955,316 I by Trust(3) Common Stock 07/07/2026 S 88,548(1) D $86.1218(16) 2,866,768 I by Trust(3) Common Stock 07/07/2026 S 41,554(1) D $87.3099(17) 2,825,214 I by Trust(3) Common Stock 07/07/2026 S 74,874(1) D $88.3966(18) 2,750,340 I by Trust(3) Common Stock 07/07/2026 S 20,593(1) D $89.3679(19) 2,729,747 I by Trust(3) Common Stock 07/07/2026 S 14,566(1) D $90.2609(20) 2,715,181 I by Trust(3) Common Stock 07/08/2026 S 265,958(1) D $81.5895(21) 2,449,223 I by Trust(3) Common Stock 07/08/2026 S 354,128(1) D $82.4841(22) 2,095,095 I by Trust(3) Common Stock 07/08/2026 S 156,666(1) D $83.3256(23) 1,938,429 I by Trust(3) Common Stock 07/08/2026 S 142,390(1) D $84.4316(24) 1,796,039 I by Trust(3) Common Stock 07/08/2026 S 67,773(1) D $85.3012(25) 1,728,266 I by Trust(3) Common Stock 07/08/2026 S 4,045(1) D $86.1212(26) 1,724,221 I by Trust(3) Common Stock 491,930 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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 control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Beck Peter 3881 MCGOWEN STREET LONG BEACH, CA 90808	X		CEO

Signatures

By: /s/Arjun Kampani, as Attorney-in-Fact For: Peter Beck		07/08/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents the sale of shares which occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Equatorial Trust (the "Trust") on March 27, 2026.
(2)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $92.3000 to $93.2900. 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.
(3)	Held directly by the Equatorial Trust (the "Trust"), a family trust settled by the Reporting Person and Kerryn Beck. Peek Street Equatorial Trustee Limited (the "Trustee") is the trustee of the Trust and each of the Reporting Person, 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. The Reporting Person disclaims his beneficial ownership of the reported securities except to the extent of his pecuniary interest.
(4)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $93.3000 to $94.2900. 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.
(5)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $94.3000 to $95.2900. 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.
(6)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $95.3000 to $96.2900. 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.
(7)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $96.2950 to $97.2850. 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.
(8)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $97.2900 to $98.2800. 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.
(9)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $98.2900 to $99.2800. 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.
(10)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $99.2850 to $100.2450. 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.
(11)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $100.2800 to $101.2700. 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.
(12)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $101.2900 to $102.0100. 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.
(13)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $82.8600 to $83.8500. 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.
(14)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $83.8550 to $84.8450. 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.
(15)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $84.8500 to $85.8400. 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.
(16)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $85.8450 to $86.8300. 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.
(17)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $86.8400 to $87.8200. 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.
(18)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $87.8450 to $88.8350. 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.
(19)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $88.8400 to $89.8300. 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.
(20)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $89.8400 to $90.5800. 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.
(21)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $81.0000 to $81.9900. 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.
(22)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $81.9950 to $82.9850. 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.
(23)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $82.9875 to $83.9700. 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.
(24)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $83.9800 to $84.9700. 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.
(25)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $84.9725 to $85.9600. 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.
(26)	The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $85.9700 to $86.3900. 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.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.