Ambarella (NASDAQ: AMBA) SVP sells 7,945 shares at $70.25

Rhea-AI Filing Summary

Ambarella Inc. insider activity: Senior VP, Systems & Asia, Chi-Hong Ju reported selling 7,945 ordinary shares of Ambarella on 12/30/2025. The sale price reported is a weighted average of $70.25 per share, with individual sale prices ranging from $70.19 to $70.43 per share. After this transaction, Ju beneficially owns 149,587 ordinary shares, held directly.

The filing notes that full details of the number of shares sold at each separate price within the stated range are available upon request to the company, the SEC staff, or any Ambarella security holder.

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
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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^*

Ju Chi-Hong

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior VP, Systems & GM, Asia

3. Date of Earliest Transaction (Month/Day/Year)
12/30/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
01/23/2026

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	12/30/2025		S		7,945	D	$70.25(1)	149,587	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 sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $70.19 to $70.43 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

	By: /s/ Michael Morehead, Attorney-in-Fact For: Chi-Hong Ju	01/23/2026
	** 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.
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 insider transaction did AMBA report in this Form 4/A?

The filing reports that Senior VP, Systems & Asia, Chi-Hong Ju sold 7,945 ordinary shares of Ambarella Inc. on 12/30/2025.

At what price did Ambarella (AMBA) insider Chi-Hong Ju sell shares?

The reported sale reflects a weighted average price of $70.25 per share, with actual sale prices ranging from $70.19 to $70.43 per share.

How many Ambarella shares does Chi-Hong Ju own after this transaction?

Following the reported sale, Chi-Hong Ju beneficially owns 149,587 ordinary shares of Ambarella Inc., held directly.

What role does the reporting person hold at Ambarella (AMBA)?

The reporting person, Chi-Hong Ju, is identified as an officer of Ambarella Inc. with the title Senior VP, Systems & Asia.

Is detailed pricing information for the AMBA insider sale available?

Yes. The filing states that, upon request by the SEC staff, Ambarella, or any security holder, full information on the number of shares sold at each separate price within the $70.19–$70.43 range will be provided.

Is this Ambarella filing an amendment to a prior Form 4?

Yes. The document is marked as a Form 4/A, amending a Form 4 originally filed on 01/23/2026, with the earliest transaction date of 12/30/2025.