Rocket Lab officer plans sale of 17,207 shares

Rocket Lab Corp (RKLB) received a notice under Rule 144 that officer Adam C. Spice plans to sell common stock.

Rhea-AI Filing Summary

Rocket Lab Corp (RKLB) received a notice under Rule 144 that officer Adam C. Spice plans to sell common stock. The notice lists a proposed sale of 17,207 Rocket Lab common shares, expected on 08/22/2026, arising from Restricted Stock Vesting as compensation. The remarks state that the sale includes an amount needed to cover a tax obligation from the settlement of a vested equity award distribution.

The notice also reports that during the prior three months, on 05/26/2026, Adam Spice sold 62,744 Rocket Lab common shares for total proceeds of $8,945,632.63. The current Form 144 is signed by Arjun Kampani as Attorney-in-Fact for Adam Spice and dated 08/24/2026.

Key Figures

Proposed shares to be sold: 17,207 shares of common stock Shares sold during past 3 months: 62,744 shares of common stock Proceeds from prior sale: $8,945,632.63 +1 more

4 metrics

Proposed shares to be sold 17,207 shares of common stock Securities To Be Sold section, expected sale date 08/22/2026

Shares sold during past 3 months 62,744 shares of common stock Sale by Adam Spice on 05/26/2026

Proceeds from prior sale $8,945,632.63 Total proceeds from 62,744 shares sold on 05/26/2026

Date of Notice 08/24/2026 Signature section of the Rule 144 notice

Key Terms

Rule 144, Restricted Stock Vesting, Attorney-in-Fact, equity award distribution

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 08/22/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Attorney-in-Fact regulatory

"Signature | /s/ Arjun Kampani, as Attorney-in-Fact for Adam Spice"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

equity award distribution financial

"resulting from the settlement of a vested equity award distribution."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction is disclosed for Rocket Lab Corp (RKLB) in this Form 144?

The filing discloses that officer Adam C. Spice plans to sell 17,207 shares of Rocket Lab common stock, expected on 08/22/2026. The shares relate to Restricted Stock Vesting received as compensation, and the sale includes shares to cover a resulting tax obligation.

How many Rocket Lab (RKLB) shares did Adam Spice sell in the last three months?

The notice reports that on 05/26/2026, Adam Spice sold 62,744 shares of Rocket Lab common stock. The total proceeds from that earlier sale were $8,945,632.63, as disclosed in the Rule 144 section covering securities sold during the past three months.

What is the purpose of the planned Rocket Lab (RKLB) share sale by Adam Spice?

According to the remarks, the sale of Rocket Lab shares by Adam Spice includes an amount necessary to cover a tax obligation arising from the settlement of a vested equity award distribution tied to Restricted Stock Vesting compensation.

What type of Rocket Lab (RKLB) securities are involved in this Form 144 filing?

The Form 144 relates to common stock of Rocket Lab Corp. The proposed sale involves 17,207 common shares associated with Restricted Stock Vesting, and a prior sale involved 62,744 Rocket Lab common shares on 05/26/2026.

Who signed the Rocket Lab (RKLB) Form 144 notice and on what date?

The notice is signed by /s/ Arjun Kampani, acting as Attorney-in-Fact for Adam Spice. The date of the notice is listed as 08/24/2026 in the signature section of the Rule 144 filing for Rocket Lab Corp.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/24/2026 - 09:13 PM EDT Accepted by SEC EDGAR 08/24/2026 - 09:12 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001509421
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Rocket Lab Corp
SEC File Number	001-39560
Address of Issuer	3881 MCGOWEN STREET LONG BEACH CALIFORNIA 90808
Phone	714-465-5737
Name of Person for Whose Account the Securities are To Be Sold	Spice Adam C.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES 200 W CIVIC CENTER DR. 4TH FLOOR SANDY UT 84070	9677	673713.41	598459739	08/24/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/22/2026	Restricted Stock Vesting	Issuer			17207	08/22/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
ADAM SPICE 3881 MCGOWEN STREET Long Beach CA 90808	Common	05/26/2026	62744	8945632.63

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	08/24/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/19/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Arjun Kampani, as Attorney-in-Fact for Adam Spice
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)