Key facts
- This page summarizes Feng-Ming Wang's Form 4 filing for AMBARELLA INC (AMBA).
- 9 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 04 Mar 2026, 17:36.
Feng-Ming Wang - 02 Mar 2026 Form 4 Insider Report for AMBARELLA INC (AMBA)
- Reporting relationship
- CEO, Director
- Issuer ticker
- AMBA
- Reported as of
- 02 Mar 2026
- Net transaction value
- -$3,040,031
- SEC form
- 4
- Accepted by SEC
- 04 Mar 2026, 17:36:32 UTC
- Prior SEC filing
- 19 Dec 2025
- Next SEC filing
- 19 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- By: /s/ Michael Morehead, Attorney-in-Fact For: Feng-Ming Wang
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Feng-Ming Wang filed Form 4 for AMBARELLA INC (AMBA) on 04 Mar 2026.
Change
- Previous filing in this sequence was filed on 19 Dec 2025.
- Current net transaction value: -$3,040,031.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001558686
Primary reporting owner
Wang Feng-Ming
- Relationship
- CEO, Director
- Address
- 3001 TASMAN DRIVE, SANTA CLARA
- Signature
- By: /s/ Michael Morehead, Attorney-in-Fact For: Feng-Ming Wang
- Signature date
- 04 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
AMBA
transaction
Ordinary Shares
Options Exercise
- Transaction value
- Shares
- +50,000
- Change %
- +6.5%
- Price
- $41.36*
- Shares after
- 818,979
- Date
- 02 Mar 2026
- Ownership
- Direct
AMBA
transaction
Ordinary Shares
Sale
- Transaction value
- $56,832
- Shares
- -1,000
- Change %
- -0.12%
- Price
- $56.83
- Shares after
- 817,979
- Date
- 02 Mar 2026
- Ownership
- Direct
- Footnotes
- F1, F2
AMBA
transaction
Ordinary Shares
Sale
- Transaction value
- $111,663
- Shares
- -1,900
- Change %
- -0.23%
- Price
- $58.77
- Shares after
- 816,079
- Date
- 02 Mar 2026
- Ownership
- Direct
- Footnotes
- F1, F3
AMBA
transaction
Ordinary Shares
Sale
- Transaction value
- $154,770
- Shares
- -2,600
- Change %
- -0.32%
- Price
- $59.53
- Shares after
- 813,479
- Date
- 02 Mar 2026
- Ownership
- Direct
- Footnotes
- F1, F4
AMBA
transaction
Ordinary Shares
Sale
- Transaction value
- $1,977,226
- Shares
- -32,460
- Change %
- -4%
- Price
- $60.91
- Shares after
- 781,019
- Date
- 02 Mar 2026
- Ownership
- Direct
- Footnotes
- F1, F5
AMBA
transaction
Ordinary Shares
Sale
- Transaction value
- $739,540
- Shares
- -12,040
- Change %
- -1.5%
- Price
- $61.42
- Shares after
- 768,979
- Date
- 02 Mar 2026
- Ownership
- Direct
- Footnotes
- F1, F6
AMBA
transaction
Ordinary Shares
Award
- Transaction value
- Shares
- +53,203
- Change %
- +6.9%
- Price
- $0.000000*
- Shares after
- 822,182
- Date
- 02 Mar 2026
- Ownership
- Direct
- Footnotes
- F7
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
AMBA
transaction
Derivative
Non-Qualified Stock Option (right to buy)
Options Exercise
- Transaction value
- Shares
- -50,000
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 02 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 50,000
- Exercise price
- $41.36
- Footnotes
- F8
AMBA
transaction
Derivative
Performance Stock Units
Award
- Transaction value
- Shares
- +53,203
- Change %
- Price
- $0.000000*
- Shares after
- 53,203
- Date
- 02 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 53,203
- Exercise price
- Footnotes
- F9, F10
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 10 footnotes
Footnote F1
The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025.
Footnote F2
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $56.79 to $$57.7899 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.
Footnote F3
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $58.16 to $$59.1599 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.
Footnote F4
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $59.16 to $$60.1599 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.
Footnote F5
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $60.21 to $$61.2099 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.
Footnote F6
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $61.22 to $$62.2199 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.
Footnote F7
The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2026.
Footnote F8
The shares vest at the rate of 1/42 per month commencing on March 15, 2016.
Footnote F9
Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.
Footnote F10
Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2029, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2026 through January 31, 2029.