Ambarella (NASDAQ: AMBA) CEO executes 10b5-1 share sale

Rhea-AI Filing Summary

Ambarella CEO Feng-Ming Wang sold 16,250 ordinary shares in an open-market trade under a pre-arranged Rule 10b5-1 plan. The sale occurred on July 1, 2026 at a weighted average price of about $90.08 per share, with individual trades ranging from $90.00 to $90.50.

Following this transaction, Wang directly owns 773,607 Ambarella ordinary shares. Because the sale was executed pursuant to a previously adopted Rule 10b5-1 trading plan, its timing reflects a scheduled diversification step rather than a newly timed market decision.

Insider Trade Summary 10b5-1

Net Seller: 16,250 shares ($1,463,800)

Net Sell 1 txn

Insider Wang Feng-Ming

Role CEO

Sold 16,250 shs ($1.46M)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	16,250	$90.08	$1.46M

Holdings After Transaction: Ordinary Shares — 773,607 shares (Direct, null)

Footnotes (1)

1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025. The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $90.00 to $90.50 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.

Key Figures

Shares sold: 16,250 shares Weighted average sale price: $90.08 per share Price range of sales: $90.00–$90.50 per share +3 more

6 metrics

Shares sold 16,250 shares Open-market sale on July 1, 2026

Weighted average sale price $90.08 per share Ordinary Shares, open-market sale

Price range of sales $90.00–$90.50 per share Prices for individual trade executions

Shares owned after transaction 773,607 shares Direct ownership following sale

Transaction code S (open-market sale) Non-derivative Form 4 entry

Trading plan adoption date October 8, 2025 Rule 10b5-1 trading plan referenced in footnote

Key Terms

Rule 10b5-1 trading plan, weighted average sale price, open-market sale, non-derivative

4 terms

Rule 10b5-1 trading plan regulatory

"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average sale price financial

"The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $90.00 to $90.50 per share."

open-market sale financial

"transaction_action: 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.

non-derivative financial

"transaction_type: non-derivative"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/02/2026 - 04:57 PM Accepted by SEC EDGAR 07/02/2026 - 04:57 PM Learn about SEC filing dates

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^*

Wang Feng-Ming

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2026

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	07/01/2026		S(1)		16,250	D	$90.08(2)	773,607	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 October 8, 2025.

2. The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $90.00 to $90.50 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: Feng-Ming Wang	07/02/2026
	** 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)

FAQ

What did Ambarella (AMBA) CEO Feng-Ming Wang report in this Form 4?

Ambarella CEO Feng-Ming Wang reported selling 16,250 ordinary shares in an open-market transaction. The sale was executed under a pre-arranged Rule 10b5-1 trading plan and leaves him with 773,607 shares held directly after the transaction.

At what price did Ambarella (AMBA) shares sell in the CEO’s July 1, 2026 trade?

The CEO’s reported sale used a weighted average price of about $90.08 per share. Individual trades occurred in a price range between $90.00 and $90.50 per share, according to the Form 4 disclosure and accompanying footnote description.

How many Ambarella (AMBA) shares does CEO Feng-Ming Wang hold after this sale?

After the reported July 1, 2026 sale, CEO Feng-Ming Wang directly holds 773,607 Ambarella ordinary shares. This means the disclosed transaction represents only a portion of his overall stake, with the majority of his share ownership remaining in place.

Was the Ambarella (AMBA) CEO’s stock sale part of a Rule 10b5-1 trading plan?

Yes. The Form 4 footnotes state the sales were effected under a Rule 10b5-1 trading plan adopted on October 8, 2025. Such plans pre-schedule trades, making the timing more routine and less reflective of short-term market views.

What type of transaction did Ambarella (AMBA) disclose for its CEO in this filing?

The filing reports an open-market sale of Ambarella ordinary shares by CEO Feng-Ming Wang, coded as transaction type “S.” It is a non-derivative transaction, meaning it involved common equity directly rather than options, warrants, or other derivative securities.