[Form 4] Ambarella, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Form 4 Filing Details - Ambarella (AMBA) Director Transaction

Director Christopher B. Paisley reported a sale of 1,000 ordinary shares at a price of $62.58 per share on June 25, 2025. The transaction was executed under a Rule 10b5-1 trading plan established on June 13, 2024, demonstrating pre-planned trading activity.

Following the transaction, Paisley retains direct beneficial ownership of 39,281 shares. Key transaction details:

• Transaction Type: Sale of non-derivative securities
• Total Transaction Value: $62,580
• Trading Plan: Executed under Rule 10b5-1
• Ownership: Direct ownership maintained

This insider sale represents approximately 2.5% of Paisley's holdings in Ambarella and was conducted in compliance with SEC regulations for insider trading.

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).

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^*

PAISLEY CHRISTOPHER B

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2025

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	06/25/2025		S(1)		1,000	D	$62.58	39,281	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. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2024.

	By: /s/ Michael Morehead, Attorney-in-Fact For: Christopher Paisley	06/26/2025
	** 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 Christopher Paisley sell on June 25, 2025?

Christopher Paisley sold 1,000 shares of Ambarella (AMBA) ordinary shares at a price of $62.58 per share on June 25, 2025.

How many AMBA shares does Christopher Paisley own after the reported transaction?

Following the reported transaction, Christopher Paisley directly owns 39,281 shares of Ambarella (AMBA).

Was AMBA insider Christopher Paisley's stock sale planned in advance?

Yes, the sale was executed pursuant to a Rule 10b5-1 trading plan that was adopted on June 13, 2024, approximately one year before the transaction.

What is Christopher Paisley's role at AMBA?

Christopher Paisley serves as a Director on Ambarella's Board, as indicated by the 'X' marked in the Director box on the Form 4 filing.

What was the total value of AMBA shares sold by Christopher Paisley?

The total value of the transaction was $62,580, calculated from the sale of 1,000 shares at $62.58 per share.