Form 4: Ambarella Senior VP Sells Shares for Tax

Ambarella's Senior VP, Systems & GM, Asia, Chi-Hong Ju, sold 1,342 ordinary shares at $71.82 to cover tax obligations from vested restricted stock units.

Summary

• Chi-Hong Ju, Senior VP, Systems & GM, Asia at Ambarella Inc. (AMBA), reported a sale of ordinary shares.
• The transaction involved the disposition of 1,342 ordinary shares at a price of $71.82 per share.
• The sale occurred on December 17, 2025.
• The purpose of the sale was to satisfy tax obligations arising from the vesting of restricted stock units.
• Following this transaction, Chi-Hong Ju directly beneficially owns 157,532 ordinary shares and indirectly owns 8,000 ordinary shares through a foundation.
• The transaction was made pursuant to a Rule 10b5-1(c) plan.

Sentiment

Score: 5

Explanation: The filing reports a routine insider transaction for tax purposes, which is a neutral event and does not indicate positive or negative sentiment regarding the company's performance or prospects.

Future Outlook

NA

Management Comments

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

Industry Context

This Form 4 filing is a routine disclosure of an insider stock transaction and does not provide broader industry context or trends. It reflects a standard executive compensation event within Ambarella.

Comparison to Industry Standards

• NA

Stakeholder Impact

• Shareholders: Minimal direct impact, as this is a routine, tax-related sale by an executive, often pre-scheduled and not indicative of a change in management's view of the company's fundamentals.
• Employees: No direct impact.
• Customers/Suppliers/Creditors: No direct impact.

Key Dates

Keywords

Ambarella, AMBA, Form 4, Insider Sale, Chi-Hong Ju, Restricted Stock Units, RSU, Tax Obligations, Executive Compensation, 10b5-1 Plan