David Jeffrey Richardson - 15 Dec 2025 Form 4 Insider Report for AMBARELLA INC (AMBA)

Reporting relationship: Director
Issuer ticker: AMBA
Reported as of: 15 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Dec 2025, 16:48:09 UTC
Prior SEC filing: 15 Dec 2025
Next SEC filing: 19 Dec 2025
Source filing: View source filing
Reporting owner signature: By: /s/ Michael Morehead, Attorney-in-Fact For: David Jeffrey Richardson

Key filing fact

David Jeffrey Richardson filed Form 4 for AMBARELLA INC (AMBA) on 17 Dec 2025.

Key facts

This page summarizes David Jeffrey Richardson's Form 4 filing for AMBARELLA INC (AMBA).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 17 Dec 2025, 16:48.

Change

Previous filing in this sequence was filed on 15 Dec 2025.
Current net transaction value: $0.

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 0001329724 Primary reporting owner

RICHARDSON DAVID JEFFREY

Relationship: Director
Address: 3001 TASMAN DRIVE, SANTA CLARA
Signature: By: /s/ Michael Morehead, Attorney-in-Fact For: David Jeffrey Richardson
Signature date: 17 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMBA transaction

Ordinary Shares

Gift

Transaction value: $0
Shares: -2,531
Change %: -50%
Price: $0.000000
Shares after: 2,498
Date: 15 Dec 2025
Ownership: Direct
Footnotes: F1

AMBA transaction

Ordinary Shares

Gift

Transaction value: $0
Shares: +2,531
Change %: +11%
Price: $0.000000
Shares after: 25,812
Date: 15 Dec 2025
Ownership: by Family Trust
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents ordinary shares transferred to a family trust of which the reporting person is a co-trustee (the "Family Trust"). The reporting person disclaims Section 16 beneficial ownership of such shares except to the extent, if any, of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.