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Ambarella (AMBA) CEO donates 10,000 shares and sells 6,204 for tax obligations

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Ambarella CEO Feng-Ming Wang reported two share transactions involving Ordinary Shares. He made a bona fide gift of 10,000 shares to a charitable donor advised fund and sold 6,204 shares at $67.87 per share to cover tax obligations from restricted stock unit vesting. After these moves, he continues to hold 789,857 Ordinary Shares directly.

Positive

  • None.

Negative

  • None.

Insights

Transactions look routine, tied to taxes and charitable giving.

Ambarella CEO Feng-Ming Wang disclosed a bona fide gift of 10,000 Ordinary Shares to a charitable donor advised fund and a sale of 6,204 shares at $67.87 per share. A footnote states the sale was to pay tax obligations from restricted stock unit vesting.

These patterns are typical of executive equity compensation management rather than discretionary buying or selling. Following the transactions, Wang still holds 789,857 Ordinary Shares directly, indicating he retains a substantial equity position. The filing does not indicate any change to derivative holdings.

Insider Wang Feng-Ming
Role CEO
Sold 6,204 shs ($421K)
Type Security Shares Price Value
Sale Ordinary Shares 6,204 $67.87 $421K
Gift Ordinary Shares 10,000 $0.00 --
Holdings After Transaction: Ordinary Shares — 799,857 shares (Direct, null)
Footnotes (1)
  1. Shares sold to pay tax obligations resulting from the vesting of restricted stock units. The shares were donated to a charitable donor advised fund (DAF).
Shares gifted 10,000 shares Bona fide gift to charitable donor advised fund
Shares sold 6,204 shares Open-market sale on 2026-06-17 to pay tax obligations
Sale price $67.87 per share Price for 6,204 Ordinary Shares sold
Shares held after transactions 789,857 shares Direct Ordinary Share holdings following reported transactions
bona fide gift financial
"transaction_code_description: "Bona fide gift""
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
donor advised fund financial
"The shares were donated to a charitable donor advised fund (DAF)."
A donor advised fund is a charitable savings account you fund with cash or assets (including stocks) that lets you take an immediate tax benefit while recommending when and which charities receive grants over time. Think of it like a dedicated piggy bank for giving: you get tax relief when you put money in, can avoid selling appreciated securities and triggering capital gains, and still control the timing and recipients of donations, which affects tax planning, portfolio decisions, and public giving signals.
restricted stock units financial
"tax obligations resulting from the vesting of restricted stock units."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
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.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/17/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Ordinary Shares06/17/2026S6,204(1)D$67.87799,857D
Ordinary Shares06/17/2026G(2)10,000D$0.0789,857D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Shares sold to pay tax obligations resulting from the vesting of restricted stock units.
2. The shares were donated to a charitable donor advised fund (DAF).
By: /s/ Michael Morehead, Attorney-in-Fact For: Feng-Ming Wang06/18/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Ambarella (AMBA) CEO Feng-Ming Wang report?

CEO Feng-Ming Wang reported two transactions: a bona fide gift of 10,000 Ordinary Shares and a sale of 6,204 Ordinary Shares. The sale was executed at $67.87 per share and, according to a footnote, was used to pay tax obligations from restricted stock unit vesting.

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

Feng-Ming Wang sold 6,204 Ordinary Shares of Ambarella at $67.87 per share. A footnote explains the sale’s purpose was to cover tax obligations arising from the vesting of restricted stock units rather than a discretionary reduction of his investment position.

How many Ambarella (AMBA) shares did the CEO gift to charity?

The CEO made a bona fide gift of 10,000 Ordinary Shares. A footnote clarifies that these shares were donated to a charitable donor advised fund, indicating a philanthropic transfer rather than a market sale or purchase involving cash proceeds.

How many Ambarella (AMBA) shares does the CEO hold after these transactions?

After the reported gift and sale, Feng-Ming Wang directly holds 789,857 Ordinary Shares. This figure reflects his remaining direct ownership position following the 10,000-share charitable gift and the 6,204-share sale noted in the Form 4 filing.

Were Ambarella (AMBA) CEO share sales part of routine tax withholding?

Yes. A footnote states that the 6,204-share sale was made to pay tax obligations from the vesting of restricted stock units. This indicates a compensation-related transaction commonly seen when equity awards vest and associated taxes become due.