Form 4: Ambarella CFO Sells Shares for Tax Obligations

Ambarella's CFO, John Alexander Young, sold a total of 6,370 ordinary shares over two days in December 2025 to cover tax obligations from vested restricted stock units.

Summary

• Ambarella Inc.'s (AMBA) Chief Financial Officer, John Alexander Young, reported the sale of ordinary shares.
• On December 17, 2025, Mr. Young sold 2,579 ordinary shares at a price of $71.82 per share.
• On December 18, 2025, an additional 3,791 ordinary shares were sold at a price of $72.96 per share.
• The total number of shares sold across these two transactions was 6,370.
• These sales were conducted to satisfy tax obligations that arose from the vesting of restricted stock units.
• Following these reported transactions, Mr. Young directly beneficially owns 102,738 ordinary shares of Ambarella Inc.

Sentiment

Score: 5

Explanation: The reported transactions are routine sales by an executive to cover tax obligations from vested restricted stock units, which is a neutral event and does not reflect a change in the company's fundamentals or management's outlook.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Shareholders: The direct beneficial ownership of the CFO has decreased by 6,370 shares, but the stated reason for the sale (tax obligations) typically mitigates concerns about insider sentiment.

Key Dates

Recommendation

The reported sales by the CFO are for tax obligations related to vested restricted stock units, a common and expected event for executives. This transaction does not indicate a change in the company's fundamentals or the CFO's long-term view, thus a 'hold' recommendation remains appropriate based solely on this filing.

Keywords

Ambarella, AMBA, Form 4, Insider Transaction, CFO, Share Sale, Restricted Stock Units, Tax Obligations