Form 4: Amprius Technologies CEO Sells Shares
Insider Transaction (Form 4)
Thomas M Stepien, Chief Executive Officer and a Director of Amprius Technologies, Inc., sold 31,529 shares of common stock on August 21, 2026.
Summary
- Open-market sale: disposed of 23,529 Common stock at $10.34 ($243,313) on August 21, 2026; holds 602,096 after (Direct).
- Open-market sale: disposed of 8,000 Common stock at $10.03 ($80,240) on August 24, 2026; holds 594,096 after (Direct).
- Bona fide gift: disposed of 5,000 Common stock on August 25, 2026; holds 589,096 after (Direct).
- Bona fide gift: disposed of 5,000 Common stock on August 25, 2026; holds 584,096 after (Direct).
- Bona fide gift: disposed of 5,000 Common stock on August 25, 2026; holds 579,096 after (Direct).
- Bona fide gift: disposed of 346 Common stock on August 25, 2026; holds 578,750 after (Direct).
- Grant/award: acquired 346 Common stock on August 25, 2026; holds 37,260 after (Indirect).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative signal: an insider sold $323,553 of stock on the open market.
Insider Transactions
Thomas M Stepien — Director, Officer (Chief Executive Officer)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-21 | Open-market sale | Common stock | 23,529 | $10 | $243.3K | 602,096 |
| 2026-08-24 | Open-market sale | Common stock | 8,000 | $10 | $80.2K | 594,096 |
| 2026-08-25 | Bona fide gift | Common stock | 5,000 | — | — | 589,096 |
| 2026-08-25 | Bona fide gift | Common stock | 5,000 | — | — | 584,096 |
| 2026-08-25 | Bona fide gift | Common stock | 5,000 | — | — | 579,096 |
| 2026-08-25 | Bona fide gift | Common stock | 346 | — | — | 578,750 |
| 2026-08-25 | Grant/award | Common stock | 346 | — | — | 37,260 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-21 | Open-market sale (23,529 shares) |
| 2026-08-24 | Open-market sale (8,000 shares) |
| 2026-08-25 | Bona fide gift (5,000 shares) |
| 2026-08-25 | Bona fide gift (5,000 shares) |
| 2026-08-25 | Bona fide gift (5,000 shares) |
| 2026-08-25 | Bona fide gift (346 shares) |
| 2026-08-25 | Grant/award (346 shares) |
Keywords
insider transaction, Form 4, AMPX, Amprius Technologies, Inc., bearish, Thomas M Stepien
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