Ambarella (AMBA) VP Yun-Lung Chen sells 5,958 shares in open-market trade

Rhea-AI Filing Summary

AMBARELLA INC executive Yun-Lung Chen, Vice President of Business Development & Marketing, reported an open-market sale of 5,958 Ordinary Shares on July 9, 2026 at an average price of $78.66 per share. Following this transaction, Chen directly holds 60,557 Ordinary Shares of Ambarella common equity.

Insider Trade Summary

Net Seller: 5,958 shares ($468,656)

Net Sell 1 txn

Insider Chen Yun-Lung

Role VP, Business Dev. & Marketing

Sold 5,958 shs ($469K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	5,958	$78.66	$469K

Holdings After Transaction: Ordinary Shares — 60,557 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 5,958 Ordinary Shares Sale price per share: $78.66 Shares held after transaction: 60,557 Ordinary Shares +1 more

4 metrics

Shares sold 5,958 Ordinary Shares Open-market sale reported for July 9, 2026

Sale price per share $78.66 Average price for the 5,958 Ordinary Shares sold

Shares held after transaction 60,557 Ordinary Shares Direct ownership position following the sale

Net shares sold 5,958 Ordinary Shares Net change in buy/sell activity for this Form 4

Key Terms

Ordinary Shares, open-market sale, beneficial ownership

3 terms

Ordinary Shares financial

"The security involved in the transaction is listed as Ordinary Shares."

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

open-market sale financial

"The transaction_action is described as an open-market sale."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

beneficial ownership financial

"Post-transaction total_shares_following_transaction reflects beneficial ownership."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/10/2026 - 04:55 PM Accepted by SEC EDGAR 07/10/2026 - 04:55 PM Learn about SEC filing dates

FAQ

What insider transaction did AMBA’s Yun-Lung Chen report on this Form 4?

Yun-Lung Chen reported an open-market sale of 5,958 Ordinary Shares of AMBARELLA INC on July 9, 2026 at an average price of $78.66 per share.

How many AMBA shares did Yun-Lung Chen sell and at what price?

Yun-Lung Chen sold 5,958 Ordinary Shares of AMBARELLA INC at an average price of $78.66 per share in an open-market sale on July 9, 2026.

What is Yun-Lung Chen’s remaining AMBA shareholding after this sale?

After the reported sale, Yun-Lung Chen directly holds 60,557 Ordinary Shares of AMBARELLA INC, as reflected in the post-transaction ownership figure on the Form 4.

What is Yun-Lung Chen’s role at AMBARELLA INC in this Form 4 filing?

In this filing, Yun-Lung Chen is identified as an officer of AMBARELLA INC, serving as VP, Business Dev. & Marketing, and is reporting transactions in the company’s Ordinary Shares.

Was the AMBA transaction by Yun-Lung Chen a buy or a sell?

The transaction was a sale. The Form 4 reports an open-market sale (code S) of 5,958 Ordinary Shares of AMBARELLA INC at an average price of $78.66 per share.

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^*

Chen Yun-Lung

(Last) (First) (Middle)

3001 TASMAN DRIVE

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	VP, Business Dev. & Marketing

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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	07/09/2026		S		5,958	D	$78.66	60,557	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:

	By: /s/ Michael Morehead, Attorney-in-Fact For: Yun-Lung Chen	07/10/2026
	** 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.
* Form 4: SEC 1474 (03-26)