STOCK TITAN

[Form 4] Rocket Lab Corp Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rocket Lab Corp (RKLB) reporting person Arjun Kampani, SVP General Counsel, disclosed multiple sales of common stock on September 16-17, 2025. The Form 4 shows a series of dispositions totaling 40,601 shares sold, executed as both "sell-to-cover" transactions to satisfy tax withholding on vested restricted stock units and automated sales under a Rule 10b5-1 trading plan adopted December 12, 2024. Reported weighted-average prices for the sales ranged roughly from $46.53 to $52.05, with specific weighted-average prices between $47.18 and $51.63 shown for the reported lots. After these transactions, the filing shows the reporting person beneficially owned 489,629 shares.

Rocket Lab Corp (RKLB) comunicó el Secretario de la persona de reporte Arjun Kampani, SVP y Asesor General, con múltiples ventas de acciones comunes el 16 y 17 de septiembre de 2025. El Formulario 4 muestra una serie de disposiciones por un total de 40.601 acciones vendidas, realizadas tanto como transacciones de venta para cubrir retenciones fiscales sobre unidades de acciones restringidas vestidas, como ventas automáticas dentro de un plan de negociación Rule 10b5-1 adoptado el 12 de diciembre de 2024. Los precios ponderados medios reportados para las ventas oscilaban aproximadamente entre $46.53 y $52.05, con precios ponderados medios específicos entre $47.18 y $51.63 mostrados para los lotes reportados. Tras estas operaciones, la persona que reporta posee beneficiosamente 489,629 acciones.

Rocket Lab Corp (RKLB) comunicó el informante: Arjun Kampani, SVP y Director General, que informó múltiples ventas de acciones comunes los días 16 y 17 de septiembre de 2025. El Formulario 4 muestra una serie de disposiciones por un total de 40,601 acciones vendidas, realizadas tanto como transacciones de venta para cubrir la retención de impuestos sobre unidades de acciones restringidas vestidas, como ventas automáticas bajo un plan de negociación Rule 10b5-1 adoptado el 12 de diciembre de 2024. Los precios medios ponderados de las ventas se reportaron aproximadamente entre $46.53 y $52.05, con precios específicos entre $47.18 y $51.63 para los lotes reportados. Después de estas operaciones, la persona que informa posee de forma beneficiosa 489,629 acciones.

Rocket Lab Corp (RKLB) 보고자 Arjun Kampani, SVP 겸 최고법률책임자(CLO)는 2025년 9월 16일-17일에 다수의 보통주 매각을 공시했습니다. Form 4에는 40,601주 매도에 이르는 연속 처분이 보고되었으며, 이는 보유 주식의 주식매입세를 충당하기 위한 매각-커버(Sell-to-Cover) 거래와 2024년 12월 12일에 채택된 Rule 10b5-1 트레이딩 플랜에 따른 자동 매도로 이루어졌습니다. 매매의 가중평균가가 대략 $46.53에서 $52.05 사이로 보고되었고, 보고된 로트별 구체 가중평균가는 $47.18에서 $51.63 사이로 표시되었습니다. 이러한 거래 후 보고자는 489,629주의 지분을 실질적으로 보유하게 됩니다.

Rocket Lab Corp (RKLB) a déclaré la personne renseigneuse Arjun Kampani, vice-président principal et conseiller juridique, avoir effectué plusieurs ventes d’actions ordinaires les 16 et 17 septembre 2025. Le Formulaire 4 révèle une série de cessions totalisant 40 601 actions vendues, réalisées à la fois comme opérations de « vente pour couverture » afin d’acquitter les retenues d’impôt sur des unités d’actions restreintes acquises et comme des ventes automatiques dans le cadre d’un plan de négociation Rule 10b5-1 adopté le 12 décembre 2024. Les prix moyens pondérés rapportés pour les ventes varient approximativement de $46,53 à $52,05, avec des prix moyens pondérés spécifiques entre $47,18 et $51,63 indiqués pour les lots rapportés. Après ces opérations, la personne déclarant détient bénéficiairement 489 629 actions.

Rocket Lab Corp (RKLB) meldete die meldenden Person Arjun Kampani, Senior Vice President und General Counsel, mehrere Verkäufe von Stammaktien am 16. und 17. September 2025. Das Formular 4 zeigt eine Reihe von Veräußerungen in Höhe von insgesamt 40.601 Aktien, ausgeführt sowohl als „Sell-to-Cover“-Transaktionen zur Deckung der Steuereinbehalte auf vestete Restricted Stock Units als auch als automatische Verkäufe im Rahmen eines Rule 10b5-1-Handelsplans, der am 12. Dezember 2024 angenommen wurde. Die berichteten gewichteten Durchschnittspreise für die Verkäufe lagen grob zwischen $46,53 und $52,05, wobei spezifische gewichtete Durchschnittspreise zwischen $47,18 und $51,63 für die berichteten Lots angegeben sind. Nach diesen Transaktionen besitzt die meldende Person vorteilhaft 489.629 Aktien.

أفادت جهة الإبلاغ في Rocket Lab Corp (RKLB) بأن أرجون كامباني، نائب الرئيس الأول والمستشار العام، قام بإعلانات ببيع عدة أسهم عادية في 16 و17 سبتمبر 2025. يُظهر النموذج 4 سلسلة من التصرفات التي تبلغ إجمالاً 40,601 سهماً مبيعا، تم تنفيذها كصفقات بيع لتغطية حسم الضرائب على وحدات الأسهم المقيدة المنسوبة وتصفية تلقائية ضمن خطة تداول Rule 10b5-1 التي اعتمدت في 12 ديسمبر 2024. أسعار البيع المرجحة المبلغ عنها تتراوح تقريبا بين $46.53 و$52.05، مع أسعار مرجحة محددة بين $47.18 و$51.63 لكل دفعات التقرير. بعد هذه الصفقات، يمتلك المبلغ المعلن عنه فائدة ملكية قدرها 489,629 سهماً.

Rocket Lab Corp (RKLB) 的披露人 Arjun Kampani,资深副总裁兼法务长,披露于2025年9月16-17日发生多笔普通股的出售。 Form 4 显示一系列处置总计 40,601 股已售出,既有用于满足已归属受限股票单位的税费预扣的“卖出以覆盖”交易,也有在于 2024年12月12日通过的 Rule 10b5-1 交易计划 下的自动卖出。报告的加权平均价格大致在 $46.53 到 $52.05 之间,报告的各批次的具体加权平均价格在 $47.18 到 $51.63 之间。完成这些交易后,披露人实际持有 489,629 股

Positive
  • Timely and detailed disclosure of insider sales on Form 4, including weighted-average price ranges and explanatory footnotes.
  • Use of a Rule 10b5-1 trading plan for some sales, indicating pre-scheduled automated transactions rather than opportunistic trades.
  • Sell-to-cover transactions were identified as tax withholding on vested RSUs, a routine compensation-related disposition.
Negative
  • Total of 40,601 shares sold on September 16-17, 2025, which reduced the reporting person's beneficial ownership to 489,629 shares.
  • Sales executed at prices with weighted-average ranges between approximately $46.53 and $52.05, which may be perceived negatively by some investors despite stated purposes.

Insights

TL;DR: Insider sales of 40,601 RKLB shares occurred via sell-to-cover and a pre-established 10b5-1 plan; impact appears routine rather than strategic.

The reported transactions consist of multiple small-to-midsize dispositions on September 16-17, 2025, aggregating 40,601 shares at weighted-average prices reported across several ranges between approximately $46.53 and $52.05. Many sales are explicitly identified as "sell-to-cover" for tax withholding related to RSU vesting, which is a common, non-strategic form of insider selling. Additional sales under a Rule 10b5-1 plan indicate pre-scheduled activity rather than opportunistic trading. The remaining beneficial ownership of 489,629 shares provides context for scale but the filing does not state total outstanding company shares, so percent ownership cannot be calculated from this document alone.

TL;DR: Form 4 discloses compliant, timely reporting of sales including Rule 10b5-1 plan activity and tax-related sell-to-cover dispositions.

The filing includes clear explanatory footnotes: several lots are "sell-to-cover" to satisfy tax withholding on settled RSUs, and two lots were executed automatically under a 10b5-1 trading plan adopted December 12, 2024. These disclosures align with standard Section 16 reporting expectations. Weighted-average price ranges are provided and the reporting person offers to supply per-transaction breakdowns upon request, which supports transparency. No derivative transactions or additional indicia of coordinated or undisclosed activity are reported.

Rocket Lab Corp (RKLB) comunicó el Secretario de la persona de reporte Arjun Kampani, SVP y Asesor General, con múltiples ventas de acciones comunes el 16 y 17 de septiembre de 2025. El Formulario 4 muestra una serie de disposiciones por un total de 40.601 acciones vendidas, realizadas tanto como transacciones de venta para cubrir retenciones fiscales sobre unidades de acciones restringidas vestidas, como ventas automáticas dentro de un plan de negociación Rule 10b5-1 adoptado el 12 de diciembre de 2024. Los precios ponderados medios reportados para las ventas oscilaban aproximadamente entre $46.53 y $52.05, con precios ponderados medios específicos entre $47.18 y $51.63 mostrados para los lotes reportados. Tras estas operaciones, la persona que reporta posee beneficiosamente 489,629 acciones.

Rocket Lab Corp (RKLB) comunicó el informante: Arjun Kampani, SVP y Director General, que informó múltiples ventas de acciones comunes los días 16 y 17 de septiembre de 2025. El Formulario 4 muestra una serie de disposiciones por un total de 40,601 acciones vendidas, realizadas tanto como transacciones de venta para cubrir la retención de impuestos sobre unidades de acciones restringidas vestidas, como ventas automáticas bajo un plan de negociación Rule 10b5-1 adoptado el 12 de diciembre de 2024. Los precios medios ponderados de las ventas se reportaron aproximadamente entre $46.53 y $52.05, con precios específicos entre $47.18 y $51.63 para los lotes reportados. Después de estas operaciones, la persona que informa posee de forma beneficiosa 489,629 acciones.

Rocket Lab Corp (RKLB) 보고자 Arjun Kampani, SVP 겸 최고법률책임자(CLO)는 2025년 9월 16일-17일에 다수의 보통주 매각을 공시했습니다. Form 4에는 40,601주 매도에 이르는 연속 처분이 보고되었으며, 이는 보유 주식의 주식매입세를 충당하기 위한 매각-커버(Sell-to-Cover) 거래와 2024년 12월 12일에 채택된 Rule 10b5-1 트레이딩 플랜에 따른 자동 매도로 이루어졌습니다. 매매의 가중평균가가 대략 $46.53에서 $52.05 사이로 보고되었고, 보고된 로트별 구체 가중평균가는 $47.18에서 $51.63 사이로 표시되었습니다. 이러한 거래 후 보고자는 489,629주의 지분을 실질적으로 보유하게 됩니다.

Rocket Lab Corp (RKLB) a déclaré la personne renseigneuse Arjun Kampani, vice-président principal et conseiller juridique, avoir effectué plusieurs ventes d’actions ordinaires les 16 et 17 septembre 2025. Le Formulaire 4 révèle une série de cessions totalisant 40 601 actions vendues, réalisées à la fois comme opérations de « vente pour couverture » afin d’acquitter les retenues d’impôt sur des unités d’actions restreintes acquises et comme des ventes automatiques dans le cadre d’un plan de négociation Rule 10b5-1 adopté le 12 décembre 2024. Les prix moyens pondérés rapportés pour les ventes varient approximativement de $46,53 à $52,05, avec des prix moyens pondérés spécifiques entre $47,18 et $51,63 indiqués pour les lots rapportés. Après ces opérations, la personne déclarant détient bénéficiairement 489 629 actions.

Rocket Lab Corp (RKLB) meldete die meldenden Person Arjun Kampani, Senior Vice President und General Counsel, mehrere Verkäufe von Stammaktien am 16. und 17. September 2025. Das Formular 4 zeigt eine Reihe von Veräußerungen in Höhe von insgesamt 40.601 Aktien, ausgeführt sowohl als „Sell-to-Cover“-Transaktionen zur Deckung der Steuereinbehalte auf vestete Restricted Stock Units als auch als automatische Verkäufe im Rahmen eines Rule 10b5-1-Handelsplans, der am 12. Dezember 2024 angenommen wurde. Die berichteten gewichteten Durchschnittspreise für die Verkäufe lagen grob zwischen $46,53 und $52,05, wobei spezifische gewichtete Durchschnittspreise zwischen $47,18 und $51,63 für die berichteten Lots angegeben sind. Nach diesen Transaktionen besitzt die meldende Person vorteilhaft 489.629 Aktien.

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).
1. Name and Address of Reporting Person*
Kampani Arjun

(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)
SVP General Counsel &
3. Date of Earliest Transaction (Month/Day/Year)
09/16/2025
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 09/16/2025 S 5,646(1) D $47.785(2) 524,584 D
Common Stock 09/16/2025 S 14,549(1) D $48.6044(3) 510,035 D
Common Stock 09/16/2025 S 6,279(1) D $49.4143(4) 503,756 D
Common Stock 09/16/2025 S 3,055(1) D $50.5206(5) 500,701 D
Common Stock 09/16/2025 S 1,656(1) D $51.6341(6) 499,045 D
Common Stock 09/17/2025 S 3,000(7) D $47.1793(8) 496,045 D
Common Stock 09/17/2025 S 6,416(7) D $47.9506(9) 489,629 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 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. These shares were sold in multiple transactions at prices ranging from $47.1300 to $48.1200, 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. These shares were sold in multiple transactions at prices ranging from $48.1300 to $49.1200, 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. These shares were sold in multiple transactions at prices ranging from $49.1300 to $50.1200, 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.
5. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.1300 to $51.1100, 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.
6. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.1300 to $52.0500, 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.
7. Represents the sale of shares which occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2024.
8. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.5300 to $47.4600, 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.
9. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.6000 to $48.4400, 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.
/s/ Arjun Kampani 09/18/2025
** 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 did Arjun Kampani (RKLB) report on Form 4?

The Form 4 reports multiple sales of Rocket Lab common stock on September 16-17, 2025, totaling 40,601 shares sold, with weighted-average prices reported across specified ranges.

Why were some shares sold according to the Form 4?

Footnotes state that several lots were sell-to-cover transactions to satisfy tax withholding on vested RSUs, and others occurred automatically under a Rule 10b5-1 plan adopted December 12, 2024.

How many shares does the reporting person own after the sales?

After the reported transactions the filing shows the reporting person beneficially owns 489,629 shares.

What price ranges were the shares sold at?

Reported weighted-average prices span roughly $46.53 to $52.05, with specific weighted-average prices listed for each lot between about $47.18 and $51.63.

Were any derivative transactions reported?

No. Table II shows no derivative securities acquired or disposed of; only common stock disposals are reported in Table I.
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