Form 4: Amprius Technologies CEO Sells Shares

Amprius Technologies CEO Thomas M. Stepien reported a transaction involving the sale of common stock to cover tax withholding obligations.

Summary

• Thomas M. Stepien, CEO and Director of Amprius Technologies, Inc., reported a transaction on May 21, 2026.
• The transaction involved the sale of 60,702 shares of common stock at an average price of $14.7884.
• These sales were part of a non-discretionary, sell-to-cover arrangement to fund tax withholding obligations related to the vesting of restricted stock units.
• The shares were sold in multiple transactions at prices ranging from $14.54 to $15.08.
• Following the transaction, Stepien beneficially owns 699,298 shares of common stock, including 625,000 restricted stock units.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, as the reported stock sale is attributed to standard tax withholding obligations related to executive compensation, rather than a discretionary sale based on market outlook.

Negatives

• The CEO sold a significant number of shares (60,702), which could be perceived negatively by the market, although it was for tax withholding purposes.

Future Outlook

No specific future outlook or guidance is provided in this filing, as it pertains to a change in beneficial ownership.

Industry Context

StockSavvy.ai notes that Form 4 filings are routine for executives and directors to report changes in their beneficial ownership, often related to stock vesting and associated tax obligations. While such transactions can sometimes be interpreted by the market, the stated reason here (tax withholding) is a common and generally accepted explanation.

Stakeholder Impact

• Shareholders: May observe the transaction and potentially interpret it, though the stated reason is a common practice for executives.
• Employees: The transaction is related to executive compensation and tax obligations, with no direct impact on general employee compensation or benefits.
• Management: The transaction reflects the standard process for managing equity compensation and tax liabilities for senior leadership.

Key Dates

Keywords

Amprius Technologies, AMPX, Form 4, Insider Trading, Stock Sale, CEO, Restricted Stock Units, Tax Withholding