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[Form 4] Ambarella, Inc. Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Ambarella, Inc. (AMBA) – Form 4 Insider Transaction

Chief Operating Officer Chan W. Lee filed a Form 4 reporting a sale of 1,601 ordinary shares on 17 June 2025 at an average price of $52.26. The disclosure states the shares were sold to satisfy tax obligations arising from the vesting of restricted stock units (RSUs). Following the transaction, Lee’s direct ownership stands at 128,696 shares.

No derivative securities were involved and no Rule 10b5-1 trading plan was indicated in the filing. The sale represents roughly 1.2 % of Lee’s reported holdings, a level generally considered routine for tax-withholding purposes rather than a material reduction in economic exposure.

Given the modest size and stated purpose of the disposition, the filing is unlikely to materially affect Ambarella’s investment thesis or signal a strategic shift by management.

Ambarella, Inc. (AMBA) – Transazione Insider Modulo 4

Il Chief Operating Officer Chan W. Lee ha presentato un Modulo 4 segnalando la vendita di 1.601 azioni ordinarie il 17 giugno 2025 ad un prezzo medio di 52,26 $. La comunicazione specifica che le azioni sono state vendute per adempiere agli obblighi fiscali derivanti dalla maturazione delle unità azionarie vincolate (RSU). Dopo la transazione, la proprietà diretta di Lee ammonta a 128.696 azioni.

Non sono stati coinvolti strumenti derivati né è stato indicato alcun piano di trading secondo la Regola 10b5-1 nella documentazione. La vendita rappresenta circa l'1,2% delle azioni detenute da Lee, un livello generalmente considerato routine per scopi di ritenuta fiscale piuttosto che una riduzione significativa dell’esposizione economica.

Considerata la dimensione contenuta e lo scopo dichiarato della cessione, la comunicazione è improbabile che influisca in modo significativo sulla tesi di investimento in Ambarella o segnali un cambiamento strategico da parte della direzione.

Ambarella, Inc. (AMBA) – Transacción Insider Formulario 4

El Director de Operaciones Chan W. Lee presentó un Formulario 4 reportando la venta de 1,601 acciones ordinarias el 17 de junio de 2025 a un precio promedio de $52.26. La declaración indica que las acciones fueron vendidas para cumplir con obligaciones fiscales derivadas del otorgamiento de unidades de acciones restringidas (RSU). Tras la operación, la propiedad directa de Lee es de 128,696 acciones.

No se involucraron valores derivados ni se indicó un plan de negociación bajo la Regla 10b5-1 en la presentación. La venta representa aproximadamente un 1.2 % de las participaciones reportadas por Lee, un nivel generalmente considerado rutinario para fines de retención fiscal más que una reducción material en la exposición económica.

Dado el tamaño modesto y el propósito declarado de la disposición, es poco probable que la presentación afecte materialmente la tesis de inversión en Ambarella o indique un cambio estratégico por parte de la gerencia.

Ambarella, Inc. (AMBA) – 내부자 거래 양식 4 보고

최고운영책임자 Chan W. Lee가 2025년 6월 17일에 1,601주 보통주 매도를 보고하는 양식 4를 제출했으며, 평균 가격은 $52.26입니다. 공시 내용에 따르면 해당 주식은 제한 주식 단위(RSU)의 권리 확정으로 인한 세금 납부 의무를 충족하기 위해 매도되었다고 합니다. 이번 거래 후 Lee의 직접 보유 주식은 128,696주입니다.

파생 증권은 포함되지 않았으며, 양식 제출 시 10b5-1 규칙에 따른 거래 계획도 명시되지 않았습니다. 이번 매도는 Lee가 보유한 주식의 약 1.2%에 해당하며, 이는 경제적 노출을 크게 줄이기보다는 세금 원천징수를 위한 일상적인 수준으로 간주됩니다.

거래 규모가 적고 명시된 목적을 고려할 때, 이번 보고는 Ambarella의 투자 논리에 중대한 영향을 미칠 가능성이 낮으며 경영진의 전략적 변화 신호도 아닙니다.

Ambarella, Inc. (AMBA) – Transaction d’initié Formulaire 4

Le Directeur des opérations Chan W. Lee a déposé un Formulaire 4 signalant une vente de 1 601 actions ordinaires le 17 juin 2025 à un prix moyen de 52,26 $. La déclaration indique que les actions ont été vendues pour satisfaire des obligations fiscales liées à l’acquisition d’unités d’actions restreintes (RSU). Après la transaction, la détention directe de Lee s’élève à 128 696 actions.

Aucun titre dérivé n’a été impliqué et aucun plan de trading selon la règle 10b5-1 n’a été mentionné dans le dépôt. La vente représente environ 1,2 % des avoirs déclarés de Lee, un niveau généralement considéré comme routinier pour des raisons de retenue fiscale plutôt qu’une réduction significative de son exposition économique.

Compte tenu de la taille modeste et de l’objectif déclaré de cette cession, il est peu probable que ce dépôt affecte de manière significative la thèse d’investissement d’Ambarella ou indique un changement stratégique de la direction.

Ambarella, Inc. (AMBA) – Insider-Transaktion Formular 4

Der Chief Operating Officer Chan W. Lee reichte ein Formular 4 ein, in dem der Verkauf von 1.601 Stammaktien am 17. Juni 2025 zu einem Durchschnittspreis von 52,26 $ gemeldet wurde. Die Offenlegung besagt, dass die Aktien verkauft wurden, um Steuerverpflichtungen aus der Freigabe von Restricted Stock Units (RSUs) zu erfüllen. Nach der Transaktion besitzt Lee direkt 128.696 Aktien.

Es waren keine derivativen Wertpapiere beteiligt, und es wurde kein Handelsplan gemäß Regel 10b5-1 in der Einreichung angegeben. Der Verkauf entspricht etwa 1,2 % von Lees gemeldetem Bestand, ein Niveau, das allgemein als routine für steuerliche Einbehaltungszwecke betrachtet wird und keine wesentliche Reduzierung des wirtschaftlichen Engagements darstellt.

Angesichts der bescheidenen Größe und des angegebenen Zwecks der Veräußerung ist es unwahrscheinlich, dass die Einreichung die Investmentthese von Ambarella wesentlich beeinflusst oder auf eine strategische Änderung des Managements hinweist.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Small tax-related insider sale; negligible impact on AMBA outlook.

The Form 4 shows COO Chan W. Lee selling 1,601 shares (<≈1.2 % of his holdings) at $52.26 to cover RSU tax liabilities. He retains 128,696 shares, keeping a substantial stake aligned with shareholders. Because the sale is modest, explained as tax withholding, and not tied to a 10b5-1 plan, I view the transaction as neutral. It neither signals insider pessimism nor provides a positive catalyst. Investors should monitor future filings for pattern changes, but this single event is not impactful to valuation or near-term stock performance.

Ambarella, Inc. (AMBA) – Transazione Insider Modulo 4

Il Chief Operating Officer Chan W. Lee ha presentato un Modulo 4 segnalando la vendita di 1.601 azioni ordinarie il 17 giugno 2025 ad un prezzo medio di 52,26 $. La comunicazione specifica che le azioni sono state vendute per adempiere agli obblighi fiscali derivanti dalla maturazione delle unità azionarie vincolate (RSU). Dopo la transazione, la proprietà diretta di Lee ammonta a 128.696 azioni.

Non sono stati coinvolti strumenti derivati né è stato indicato alcun piano di trading secondo la Regola 10b5-1 nella documentazione. La vendita rappresenta circa l'1,2% delle azioni detenute da Lee, un livello generalmente considerato routine per scopi di ritenuta fiscale piuttosto che una riduzione significativa dell’esposizione economica.

Considerata la dimensione contenuta e lo scopo dichiarato della cessione, la comunicazione è improbabile che influisca in modo significativo sulla tesi di investimento in Ambarella o segnali un cambiamento strategico da parte della direzione.

Ambarella, Inc. (AMBA) – Transacción Insider Formulario 4

El Director de Operaciones Chan W. Lee presentó un Formulario 4 reportando la venta de 1,601 acciones ordinarias el 17 de junio de 2025 a un precio promedio de $52.26. La declaración indica que las acciones fueron vendidas para cumplir con obligaciones fiscales derivadas del otorgamiento de unidades de acciones restringidas (RSU). Tras la operación, la propiedad directa de Lee es de 128,696 acciones.

No se involucraron valores derivados ni se indicó un plan de negociación bajo la Regla 10b5-1 en la presentación. La venta representa aproximadamente un 1.2 % de las participaciones reportadas por Lee, un nivel generalmente considerado rutinario para fines de retención fiscal más que una reducción material en la exposición económica.

Dado el tamaño modesto y el propósito declarado de la disposición, es poco probable que la presentación afecte materialmente la tesis de inversión en Ambarella o indique un cambio estratégico por parte de la gerencia.

Ambarella, Inc. (AMBA) – 내부자 거래 양식 4 보고

최고운영책임자 Chan W. Lee가 2025년 6월 17일에 1,601주 보통주 매도를 보고하는 양식 4를 제출했으며, 평균 가격은 $52.26입니다. 공시 내용에 따르면 해당 주식은 제한 주식 단위(RSU)의 권리 확정으로 인한 세금 납부 의무를 충족하기 위해 매도되었다고 합니다. 이번 거래 후 Lee의 직접 보유 주식은 128,696주입니다.

파생 증권은 포함되지 않았으며, 양식 제출 시 10b5-1 규칙에 따른 거래 계획도 명시되지 않았습니다. 이번 매도는 Lee가 보유한 주식의 약 1.2%에 해당하며, 이는 경제적 노출을 크게 줄이기보다는 세금 원천징수를 위한 일상적인 수준으로 간주됩니다.

거래 규모가 적고 명시된 목적을 고려할 때, 이번 보고는 Ambarella의 투자 논리에 중대한 영향을 미칠 가능성이 낮으며 경영진의 전략적 변화 신호도 아닙니다.

Ambarella, Inc. (AMBA) – Transaction d’initié Formulaire 4

Le Directeur des opérations Chan W. Lee a déposé un Formulaire 4 signalant une vente de 1 601 actions ordinaires le 17 juin 2025 à un prix moyen de 52,26 $. La déclaration indique que les actions ont été vendues pour satisfaire des obligations fiscales liées à l’acquisition d’unités d’actions restreintes (RSU). Après la transaction, la détention directe de Lee s’élève à 128 696 actions.

Aucun titre dérivé n’a été impliqué et aucun plan de trading selon la règle 10b5-1 n’a été mentionné dans le dépôt. La vente représente environ 1,2 % des avoirs déclarés de Lee, un niveau généralement considéré comme routinier pour des raisons de retenue fiscale plutôt qu’une réduction significative de son exposition économique.

Compte tenu de la taille modeste et de l’objectif déclaré de cette cession, il est peu probable que ce dépôt affecte de manière significative la thèse d’investissement d’Ambarella ou indique un changement stratégique de la direction.

Ambarella, Inc. (AMBA) – Insider-Transaktion Formular 4

Der Chief Operating Officer Chan W. Lee reichte ein Formular 4 ein, in dem der Verkauf von 1.601 Stammaktien am 17. Juni 2025 zu einem Durchschnittspreis von 52,26 $ gemeldet wurde. Die Offenlegung besagt, dass die Aktien verkauft wurden, um Steuerverpflichtungen aus der Freigabe von Restricted Stock Units (RSUs) zu erfüllen. Nach der Transaktion besitzt Lee direkt 128.696 Aktien.

Es waren keine derivativen Wertpapiere beteiligt, und es wurde kein Handelsplan gemäß Regel 10b5-1 in der Einreichung angegeben. Der Verkauf entspricht etwa 1,2 % von Lees gemeldetem Bestand, ein Niveau, das allgemein als routine für steuerliche Einbehaltungszwecke betrachtet wird und keine wesentliche Reduzierung des wirtschaftlichen Engagements darstellt.

Angesichts der bescheidenen Größe und des angegebenen Zwecks der Veräußerung ist es unwahrscheinlich, dass die Einreichung die Investmentthese von Ambarella wesentlich beeinflusst oder auf eine strategische Änderung des Managements hinweist.

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*
Lee Chan W

(Last) (First) (Middle)
3101 JAY STREET

(Street)
SANTA CLARA CA 95054

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
AMBARELLA INC [ AMBA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Operating Officer
3. Date of Earliest Transaction (Month/Day/Year)
06/17/2025
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
Ordinary Shares 06/17/2025 S 1,601(1) D $52.26 128,696 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. Shares sold to pay tax obligations resulting from the vesting of restricted stock units.
By: /s/ Michael Morehead, Attorney-in-Fact For: Chan W. Lee 06/20/2025
** 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

How many AMBA shares did COO Chan W. Lee sell on 06/17/2025?

He sold 1,601 ordinary shares.

At what price were the AMBA shares sold according to the Form 4?

The shares were sold at an average price of $52.26 per share.

Why did Chan W. Lee dispose of the shares?

The filing states the shares were sold to pay tax obligations arising from the vesting of RSUs.

How many AMBA shares does Lee own after the transaction?

He now directly owns 128,696 shares of Ambarella.

Does the Form 4 reference a Rule 10b5-1 trading plan?

The document includes a checkbox for Rule 10b5-1 but does not indicate it was selected.
Ambarella Inc

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Semiconductor Equipment & Materials
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SANTA CLARA