Rocket Lab (RKLB) director awarded 2,482 restricted stock units as equity compensation

Rhea-AI Filing Summary

Possenriede Kenneth R reported acquisition or exercise transactions in this Form 4 filing.

Rocket Lab Corp director Kenneth R. Possenriede received an award of 2,482 shares of Common Stock in the form of restricted stock units. The grant was made at no cash cost to him and increases his direct holdings to 96,660 shares. These RSUs will vest in full on the earlier of the company’s next Annual Meeting of Stockholders or the one-year anniversary of the grant date, as long as he continues serving on the Board.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Possenriede Kenneth R

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,482	$0.00	--

Holdings After Transaction: Common Stock — 96,660 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 2,482 shares Grant price: $0.00 per share Post-grant holdings: 96,660 shares +1 more

4 metrics

RSU grant size 2,482 shares Restricted stock units granted to director on 2026-05-20

Grant price $0.00 per share Stated transaction price for RSU award

Post-grant holdings 96,660 shares Total Common Stock directly held after the grant

Vesting trigger Earlier of next annual meeting or one-year anniversary RSUs vest if Board service continues through vesting date

Key Terms

restricted stock units ("RSUs"), Amended and Restated Non-Employee Director Compensation Policy, 2021 Stock Option and Incentive Plan, Annual Meeting of Stockholders

4 terms

restricted stock units ("RSUs") financial

"Represents restricted stock units ("RSUs") granted to the Reporting Person under the Rocket Lab Corporation Amended and Restated Non-Employee Director Compensation Policy"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Amended and Restated Non-Employee Director Compensation Policy financial

"granted to the Reporting Person under the Rocket Lab Corporation Amended and Restated Non-Employee Director Compensation Policy"

2021 Stock Option and Incentive Plan financial

"and the Rocket Lab Corporation 2021 Stock Option and Incentive Plan"

Annual Meeting of Stockholders financial

"will vest in full on the earlier of (i) the date of the Registrant's next Annual Meeting of Stockholders"

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^*

Possenriede Kenneth R

(Last) (First) (Middle)

3881 MCGOWEN STREET

(Street)

LONG BEACH CALIFORNIA 90808

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	05/20/2026		A		2,482(1)	A	$0.0	96,660	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 restricted stock units ("RSUs") granted to the Reporting Person under the Rocket Lab Corporation Amended and Restated Non-Employee Director Compensation Policy, and the Rocket Lab Corporation 2021 Stock Option and Incentive Plan. Such RSUs will vest in full on the earlier of (i) the date of the Registrant's next Annual Meeting of Stockholders and (ii) the one-year anniversary of the date of grant, subject to the Reporting Person's continuous service as a member of the Board of Directors through such date.

	By: /s/ Arjun Kampani, as Attorney-in-Fact For: Kenneth R. Possenriede	05/22/2026
	** 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 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Rocket Lab (RKLB) director Kenneth R. Possenriede report?

Kenneth R. Possenriede reported receiving 2,482 Rocket Lab Common Stock restricted stock units as a grant. The award was made at a price of $0.00 per share, reflecting compensation rather than an open-market purchase transaction.

How many Rocket Lab (RKLB) shares does Kenneth R. Possenriede hold after this grant?

After the grant, Kenneth R. Possenriede directly holds 96,660 shares of Rocket Lab Common Stock. This updated total includes the 2,482 restricted stock units reported in the filing, which were awarded under the company’s stock incentive arrangements for non-employee directors.

What type of award did Rocket Lab (RKLB) grant to director Kenneth R. Possenriede?

Rocket Lab granted Kenneth R. Possenriede restricted stock units, or RSUs, covering 2,482 shares of Common Stock. RSUs are share-based compensation that convert into actual shares upon vesting, rather than cash-based salary or an open-market stock transaction.

When will Kenneth R. Possenriede’s Rocket Lab (RKLB) RSUs vest?

The 2,482 Rocket Lab RSUs will vest in full on the earlier of the next Annual Meeting of Stockholders or the one-year anniversary of the grant date. Vesting requires that Possenriede continue to serve as a member of the Board of Directors through that date.

Under what plans were Rocket Lab (RKLB) RSUs granted to Kenneth R. Possenriede?

The RSUs were granted under Rocket Lab Corporation’s Amended and Restated Non-Employee Director Compensation Policy and the 2021 Stock Option and Incentive Plan. These company programs provide equity-based compensation to non-employee directors instead of purely cash retainers.

Did Kenneth R. Possenriede buy Rocket Lab (RKLB) shares on the open market?

No, Kenneth R. Possenriede did not buy shares on the open market in this filing. He received 2,482 shares as a restricted stock unit grant at a stated price of $0.00 per share, reflecting equity compensation rather than a discretionary market purchase.