Ambarella (NASDAQ: AMBA) director logs small 250-share open-market sale

Rhea-AI Filing Summary

Ambarella Inc. director Christopher B. Paisley sold 250 Ordinary Shares in an open-market trade at $62.01 per share. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on September 22, 2025, and he continues to hold 41,029 shares directly.

Insider Trade Summary 10b5-1

Net Seller: 250 shares ($15,503)

Net Sell 1 txn

Insider PAISLEY CHRISTOPHER B

Role null

Sold 250 shs ($16K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	250	$62.01	$16K

Holdings After Transaction: Ordinary Shares — 41,029 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 250 shares Sale price: $62.01 per share Shares held after sale: 41,029 shares +2 more

5 metrics

Shares sold 250 shares Ordinary Shares sold in open-market transaction

Sale price $62.01 per share Price for the 250 Ordinary Shares sold

Shares held after sale 41,029 shares Director’s direct holdings following the transaction

Transaction date June 26, 2026 Date of the reported open-market sale

10b5-1 plan adoption date September 22, 2025 Date the Rule 10b5-1 trading plan was adopted

Key Terms

Rule 10b5-1 trading plan, open-market sale, Ordinary Shares, 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 September 22, 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.

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.

Ordinary Shares financial

""security_title": "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.

non-derivative financial

""transaction_type": "non-derivative""

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/30/2026 - 05:18 PM Accepted by SEC EDGAR 06/30/2026 - 05:17 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^*

PAISLEY CHRISTOPHER B

(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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026

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	06/26/2026		S(1)		250	D	$62.01	41,029	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 September 22, 2025.

	By: /s/ Michael Morehead, Attorney-in-Fact For: Christopher Paisley	06/30/2026
	** 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) director Christopher Paisley report in this Form 4?

Christopher B. Paisley reported selling 250 Ambarella Ordinary Shares in an open-market transaction at $62.01 per share. After this trade, he directly holds 41,029 shares, according to the Form 4 insider transaction disclosure filed for Ambarella Inc.

Was the Ambarella (AMBA) insider sale made under a Rule 10b5-1 plan?

Yes, the sale was executed under a Rule 10b5-1 trading plan adopted on September 22, 2025. Such plans allow insiders to schedule trades in advance, helping separate routine portfolio management from discretionary, market-timing driven transactions in Ambarella stock.

How many Ambarella (AMBA) shares did the director sell and at what price?

The director sold 250 Ordinary Shares of Ambarella at a price of $62.01 per share. This single open-market transaction is the only trade reported in the filing and reflects a relatively small portion of his disclosed shareholdings.

How many Ambarella (AMBA) shares does the insider hold after this transaction?

Following the reported sale, Christopher B. Paisley directly holds 41,029 Ambarella Ordinary Shares. This post-transaction holding figure, disclosed in the Form 4, helps investors gauge the scale of the sale relative to his remaining ownership position.

What type of security did the Ambarella (AMBA) director sell in this Form 4?

The filing shows a transaction in Ambarella Ordinary Shares, classified as a non-derivative security. No options, warrants, or other derivatives were reported, and the derivative holdings summary in the Form 4 is empty for this particular insider transaction.