Chan W. Lee - 17 Mar 2026 Form 4 Insider Report for AMBARELLA INC (AMBA)

Reporting relationship: Chief Operations Officer
Issuer ticker: AMBA
Reported as of: 17 Mar 2026
Net transaction value: -$552,213
SEC form: 4
Accepted by SEC: 19 Mar 2026, 18:41:09 UTC
Prior SEC filing: 04 Mar 2026
Next SEC filing: 18 Jun 2026
Source filing: View source filing
Reporting owner signature: By: /s/ Michael Morehead, Attorney-in-Fact For: Chan W. Lee

Key filing fact

Chan W. Lee filed Form 4 for AMBARELLA INC (AMBA) on 19 Mar 2026.

Key facts

This page summarizes Chan W. Lee's Form 4 filing for AMBARELLA INC (AMBA).
5 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 19 Mar 2026, 18:41.

Change

Previous filing in this sequence was filed on 04 Mar 2026.
Current net transaction value: -$552,213.

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

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001882825 Primary reporting owner

Lee Chan W

Relationship: Chief Operations Officer
Address: 3001 TASMAN DRIVE, SANTA CLARA
Signature: By: /s/ Michael Morehead, Attorney-in-Fact For: Chan W. Lee
Signature date: 19 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: +13,678
Change %: +9.2%
Price
Shares after: 163,099
Date: 17 Mar 2026
Ownership: Direct
Footnotes: F1, F2

AMBA transaction

Ordinary Shares

Sale

Transaction value: $355,089
Shares: -6,729
Change %: -4.1%
Price: $52.77
Shares after: 156,370
Date: 17 Mar 2026
Ownership: Direct
Footnotes: F3

AMBA transaction

Ordinary Shares

Award

Transaction value
Shares: +7,320
Change %: +4.7%
Price: $0.000000^*
Shares after: 163,690
Date: 18 Mar 2026
Ownership: Direct
Footnotes: F4

AMBA transaction

Ordinary Shares

Sale

Transaction value: $197,124
Shares: -3,641
Change %: -2.2%
Price: $54.14
Shares after: 160,049
Date: 19 Mar 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AMBA transaction Derivative

Performance Stock Units

Options Exercise

Transaction value
Shares: -13,678
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 17 Mar 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 13,678
Exercise price
Footnotes: F1, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

Footnote F2

Includes 154 shares acquired under the Company's employee stock purchase plan on March 16, 2026.

Footnote F3

Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Footnote F4

Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Footnote F5

On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.