Form 4: Amprius Technologies CFO Sells Shares to Cover Tax Obligations

Amprius Technologies' Chief Financial Officer, Sandra Wallach, sold 27,595 shares of common stock for approximately $67,160 to satisfy tax withholding obligations related to restricted stock unit vesting.

Summary

• Sandra Wallach, Chief Financial Officer of Amprius Technologies, Inc. (AMPX), sold 27,595 shares of the company's common stock on May 21, 2025.
• The shares were sold at an average price of $2.432 per share, with individual transactions ranging from $2.40 to $2.48.
• This sale was a non-discretionary "sell-to-cover" transaction, mandated by the issuer to fund tax withholding obligations associated with the vesting of restricted stock units.
• Following this transaction, Ms. Wallach beneficially owns 1,033,665 shares, which includes 874,725 restricted stock units.

Sentiment

Score: 6

Explanation: The sentiment is neutral to slightly positive. While it's an insider sale, it's explicitly for tax withholding purposes (sell-to-cover), which is a routine and non-discretionary event, mitigating any negative implications typically associated with insider selling. The insider also retains a substantial holding.

Positives

• The sale was non-discretionary and for tax purposes, indicating it was not a discretionary sale based on a negative outlook by the insider.
• The insider retains a significant beneficial ownership of 1,033,665 shares, including a large number of restricted stock units, aligning her interests with shareholders.

Negatives

• A reduction in direct insider ownership, even if for tax purposes, can sometimes be perceived negatively by the market.
• The sale price of $2.432 is relatively low, potentially reflecting current market valuation for AMPX.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance or strategic outlook.

Management Comments

• "This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."
• "The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $2.40 to $2.48, inclusive."

Industry Context

This Form 4 filing details an individual insider transaction and does not provide information relevant to broader industry trends or competitive landscape analysis.

Comparison to Industry Standards

• This document is an insider transaction report and does not contain information suitable for comparison to global industry benchmarks, specific comparable companies, projects, or results.

Stakeholder Impact

• Shareholders: A very minor dilution effect from the sale of shares, but the non-discretionary nature for tax purposes limits negative perception. The CFO's continued significant holding aligns her interests with shareholders.

Next Steps

• The document does not outline any specific future actions, events, or milestones for the company or the reporting person beyond the completion of this transaction.

Key Dates

Keywords

Amprius Technologies, AMPX, Sandra Wallach, CFO, Insider Trading, Form 4, Stock Sale, Restricted Stock Units, Tax Withholding, Sell-to-Cover