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Rocket Lab CFO Adam Spice sells 140,157 shares

The option's vesting schedule provided for one-quarter of shares to vest on the one-year anniversary, then 1/48 monthly, subject to continued service.

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Form Type
4

Rhea-AI Filing Summary

Rocket Lab Corp (RKLB) Chief Financial Officer Adam C. Spice exercised options covering 140,157 common shares on November 2, 2026, at an exercise price of $1.09 per share, and sold 140,157 shares in five reported transactions. The sales occurred automatically under a Rule 10b5-1 trading plan he adopted on June 3, 2026. The five weighted-average sale prices were $51.2804, $52.2638, $53.2884, $54.0728, and $54.7849 per share. After the exercise, his reported employee stock option position covered 2,102,354 shares; his reported holdings also include 250,000 common shares held indirectly by a trust.

Insider Spice Adam C.
Role Chief Financial Officer
Sold 140,157 shs ($7.40M)
Approx. gross sale proceeds $7.40M
Approx. exercise cost $153K
Approx. pre-tax spread $7.25M
Share of Position Sold 10.8%
Type Security Shares Price Value
Exercise Employee Stock Option (right to buy) F7 140,157 $0.00 $0.00
Exercise Common Stock 140,157 $1.09 $153K
Sale Common Stock F1, F2 47,554 $51.2804 $2.44M
Sale Common Stock F1, F3 14,266 $52.2638 $746K
Sale Common Stock F1, F4 33,681 $53.2884 $1.79M
Sale Common Stock F1, F5 37,950 $54.0728 $2.05M
Sale Common Stock F1, F6 6,706 $54.7849 $367K
Holding Common Stock -- -- --
Holdings After Transaction: Employee Stock Option (right to buy) — 2,102,354 contracts (Direct); Common Stock — 1,155,967 shares (Direct); Common Stock — 250,000 shares (Indirect, by Trust)
Holdings Before and After: Employee Stock Option (right to buy), 2,242,511 to 2,102,354 contracts (Direct); Common Stock, 1,155,967 to 1,155,967 shares (Direct)
Footnotes (7)
  1. F1. Represents the sale of shares which occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 03, 2026.
  2. F2. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $50.7100 to $51.7000. 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. F3. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $51.7100 to $52.7000. 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.
  4. F4. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $52.7100 to $53.7000. 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. F5. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $53.7100 to $54.7000. 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. F6. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $54.7100 to $55.0000. 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. F7. The stock option was granted on August 3, 2018, and had a vesting commencement date of May 25, 2018. 1/4 of the shares subject to the stock option vest on the one year anniversary of the vesting commencement date, and 1/48 of the shares subject to the stock option vest on a monthly basis each month thereafter, subject, in each case, to the reporting person's continued service relationship through each applicable vesting date.
Shares acquired through option exercise 140,157 shares November 2, 2026
Option exercise price $1.09 per share Option exercise on November 2, 2026
Shares sold 140,157 shares Five reported transactions on November 2, 2026
Weighted-average sale prices $51.2804, $52.2638, $53.2884, $54.0728, and $54.7849 per share Five reported transactions on November 2, 2026
Shares underlying reported option position 2,102,354 shares Reported following the exercise
Indirect common shares held by a trust 250,000 shares Reported as of November 2, 2026
Rule 10b5-1 trading plan regulatory
"automatically pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted-average price financial
"The price reported in Column 4 is a weighted-average price"
Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.
vesting commencement date financial
"had a vesting commencement date of May 25, 2018"
The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.
exercise price financial
"conversion_or_exercise_price: 1.0900"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

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

How many RKLB shares did Adam C. Spice sell, and at what prices?

Adam C. Spice sold 140,157 shares on November 2, 2026, in five reported transactions. The sales occurred automatically under a Rule 10b5-1 trading plan adopted June 3, 2026. The reported weighted-average prices were $51.2804, $52.2638, $53.2884, $54.0728, and $54.7849 per share.

What were the vesting terms for Adam C. Spice's RKLB option?

The option was granted on August 3, 2018, with vesting commencing May 25, 2018. One-quarter of the shares vested on the one-year anniversary of the commencement date, followed by 1/48 monthly, subject to continued service through each applicable vesting date.

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

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SEC Form 4
FORM 4UNITED 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).
X
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*
Spice Adam C.

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/02/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock11/02/2026M140,157A$1.091,296,124D
Common Stock11/02/2026S47,554(1)D$51.2804(2)1,248,570D
Common Stock11/02/2026S14,266(1)D$52.2638(3)1,234,304D
Common Stock11/02/2026S33,681(1)D$53.2884(4)1,200,623D
Common Stock11/02/2026S37,950(1)D$54.0728(5)1,162,673D
Common Stock11/02/2026S6,706(1)D$54.7849(6)1,155,967D
Common Stock250,000Iby Trust
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (right to buy)$1.0911/02/2026M140,157 (7)08/03/2028Common Stock140,157$0.02,102,354D
Explanation of Responses:
1. Represents the sale of shares which occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 03, 2026.
2. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $50.7100 to $51.7000. 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. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $51.7100 to $52.7000. 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.
4. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $52.7100 to $53.7000. 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 $53.7100 to $54.7000. 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 $54.7100 to $55.0000. 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 stock option was granted on August 3, 2018, and had a vesting commencement date of May 25, 2018. 1/4 of the shares subject to the stock option vest on the one year anniversary of the vesting commencement date, and 1/48 of the shares subject to the stock option vest on a monthly basis each month thereafter, subject, in each case, to the reporting person's continued service relationship through each applicable vesting date.
By: /s/ Arjun Kampani, as Attorney-in-Fact For: Adam Spice11/03/2026
** Signature of Reporting PersonDate
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)

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