Form 4: Amprius Technologies Executive Constantin Ionel Stefan Reports Stock Transactions

Constantin Ionel Stefan, Chief Technology Officer of Amprius Technologies, reports acquisition and disposal of common stock and restricted stock units.

Summary

• Constantin Ionel Stefan, the Chief Technology Officer of Amprius Technologies, Inc., filed a Form 4 detailing changes in beneficial ownership.
• On March 19, 2025, Stefan acquired 461,540 shares of common stock at $0 and disposed of 886,500 shares.
• Following these transactions, Stefan beneficially owns 886,500 shares of common stock, including 742,467 restricted stock units.
• The restricted stock units vest over time, with 1/16th vesting quarterly starting May 20, 2025, and full vesting by February 20, 2029, contingent upon continued service.

Sentiment

Score: 5

Explanation: The document is a routine regulatory filing detailing stock transactions by a company executive. It doesn't inherently convey positive or negative sentiment.

Future Outlook

The reporting person's restricted stock units will continue to vest quarterly until February 20, 2029, subject to continued service.

Industry Context

Form 4 filings are standard disclosures required by the SEC to provide transparency into the transactions of company insiders, allowing investors to monitor management's alignment with shareholder interests.

Stakeholder Impact

• Shareholders can monitor insider transactions to assess management's confidence in the company's prospects.

Key Dates

Keywords

Form 4, beneficial ownership, Amprius Technologies, AMPX, stock transaction, restricted stock units, Constantin Ionel Stefan, CTO