Ambarella (NASDAQ: AMBA) director granted 2,457 restricted stock units

Rhea-AI Filing Summary

Ambarella Inc director Gregory M. Bryant received an equity award linked to 2,457 ordinary shares as a grant or other acquisition. According to the terms, these restricted stock units will vest in three equal installments on March 15, 2026, June 15, 2026, and September 15, 2026, becoming fully vested by September 15, 2026.

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

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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^*

Bryant Gregory M

(Last) (First) (Middle)

3001 TASMAN DRIVE

(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)
03/02/2026

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	03/02/2026		A(1)		2,457	A	$0.0	2,457	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 are subject to an award of restricted stock units that will vest as to 1/3rd of the restricted stock units on each of March 15, 2026, June 15, 2026 and September 15, 2026, so as to be 100% vested on September 15, 2026.

	By: /s/ Michael Morehead, Attorney-in-Fact For: Gregory M. Bryant	03/04/2026
	** 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.
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FAQ

What insider transaction did Ambarella (AMBA) report on this Form 4?

Ambarella reported that director Gregory M. Bryant acquired an equity award tied to 2,457 ordinary shares. The transaction was coded as a grant or other acquisition, indicating it was an award rather than an open-market purchase, with vesting over several 2026 dates.

How many Ambarella shares were granted to director Gregory M. Bryant?

Gregory M. Bryant was granted an equity award corresponding to 2,457 ordinary shares of Ambarella Inc. These shares are in the form of restricted stock units, which means they will only fully belong to him as they vest over the specified schedule in 2026.

What is the vesting schedule for Gregory M. Bryant’s Ambarella restricted stock units?

The restricted stock units vest in three equal installments. One-third will vest on March 15, 2026, another third on June 15, 2026, and the final third on September 15, 2026, so that the entire 2,457-share award is fully vested by September 15, 2026.

Was Gregory M. Bryant’s Ambarella share grant an open-market purchase?

No, the transaction was reported with code A, described as a grant, award, or other acquisition. This means Gregory M. Bryant did not buy the 2,457 shares on the open market but received them as a form of equity compensation that vests over time.

What does this Ambarella Form 4 say about Gregory M. Bryant’s ownership after the grant?

After the reported equity grant, Gregory M. Bryant is shown as holding 2,457 ordinary shares directly. These are tied to restricted stock units, which will become fully his only as they vest on the three specified dates throughout 2026.