RKLB Form 4: Rocket Lab COO reports insider stock sales

Rhea-AI Filing Summary

Rocket Lab Corp (RKLB) reported an insider stock transaction by its Chief Operations Officer, Frank Klein. On 11/24/2025, Klein sold 10,430, 31,181, and 171 shares of common stock in three separate transactions at weighted average prices of $40.0247, $40.8576, and $41.3495 per share, respectively.

The filing states these sales were part of a “sell-to-cover” arrangement to satisfy tax withholding obligations related to vesting restricted stock units previously granted to him. After these transactions, Klein beneficially owned 1,274,223 Rocket Lab common shares, held directly.

Insider Trade Summary

Net Seller: 41,782 shares ($1,698,509)

Net Sell 3 txns

Insider Klein Frank

Role Chief Operations Officer

Sold 41,782 shs ($1.70M)

Type	Security	Shares	Price	Value
Sale	Common Stock	10,430	$40.0247	$417K
Sale	Common Stock	31,181	$40.8576	$1.27M
Sale	Common Stock	171	$41.3495	$7K

Holdings After Transaction: Common Stock — 1,305,575 shares (Direct)

Footnotes (1)

1. Represents the sale of Common Shares pursuant to a "sell-to-cover" transaction in order to satisfy applicable tax withholding obligations in connection with the vesting and settlement of restricted stock units previously granted to the reporting person. The price reported in column 4 is a weighted average price of the aggregate number of shares. These shares were sold in multiple transactions in bulk at prices ranging from $39.3400 to $40.3300 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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. The price reported in column 4 is a weighted average price of the aggregate number of shares. These shares were sold in multiple transactions in bulk at prices ranging from $40.3400 to $41.3300 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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. The price reported in column 4 is a weighted average price of the aggregate number of shares. These shares were sold in multiple transactions in bulk at prices ranging from $41.3400 to $41.4200 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Klein Frank

(Last) (First) (Middle)

3881 MCGOWEN STREET

(Street)

LONG BEACH CA 90808

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Rocket Lab Corp [ RKLB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operations Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/24/2025

4. If Amendment, Date of 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

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	11/24/2025		S		10,430(1)	D	$40.0247(2)	1,305,575	D
Common Stock	11/24/2025		S		31,181(1)	D	$40.8576(3)	1,274,394	D
Common Stock	11/24/2025		S		171(1)	D	$41.3495(4)	1,274,223	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Represents the sale of Common Shares pursuant to a "sell-to-cover" transaction in order to satisfy applicable tax withholding obligations in connection with the vesting and settlement of restricted stock units previously granted to the reporting person.

2. The price reported in column 4 is a weighted average price of the aggregate number of shares. These shares were sold in multiple transactions in bulk at prices ranging from $39.3400 to $40.3300 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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. The price reported in column 4 is a weighted average price of the aggregate number of shares. These shares were sold in multiple transactions in bulk at prices ranging from $40.3400 to $41.3300 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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.

4. The price reported in column 4 is a weighted average price of the aggregate number of shares. These shares were sold in multiple transactions in bulk at prices ranging from $41.3400 to $41.4200 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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.

	By: /s/ Arjun Kampani, as Attorney-in-Fact For: Frank Klein	11/25/2025
	** 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 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.

FAQ

What insider transaction did Rocket Lab (RKLB) disclose in this Form 4?

The filing reports that Chief Operations Officer Frank Klein sold Rocket Lab common stock in multiple transactions on 11/24/2025.

How many Rocket Lab (RKLB) shares did the COO sell and at what prices?

Frank Klein sold 10,430 shares at $40.0247, 31,181 shares at $40.8576, and 171 shares at $41.3495 per share, each as a weighted average price.

Why were Rocket Lab (RKLB) shares sold by the COO according to the filing?

The filing explains the sales represent a “sell-to-cover” transaction to satisfy tax withholding obligations from the vesting and settlement of previously granted restricted stock units.

How many Rocket Lab (RKLB) shares does the COO own after the reported transactions?

Following the reported sales, Frank Klein beneficially owned 1,274,223 Rocket Lab common shares, held directly.

Who signed the Rocket Lab (RKLB) Form 4 for this insider transaction?

The Form 4 was signed by Arjun Kampani as Attorney-in-Fact for Frank Klein on 11/25/2025.

Were the Rocket Lab (RKLB) insider sales executed in multiple trades within price ranges?

Yes. The filing notes each weighted average price reflects shares sold in multiple bulk transactions within stated price ranges, and detailed trade data is available upon request.