Constantin Ionel Stefan, Chief Technology Officer at Amprius Technologies, Inc. (AMPX), sold 20,366 shares at $2.43 ($49K) on 2025-05-21, disclosed to the SEC on 2025-05-23.
Open-market sale of $49k AMPX by Chief Technology Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| AMPX | SELL | 2026-05-26 | $426K | — | Filing → |
| AMPX | SELL | 2026-02-24 | $258K | — | Filing → |
| AMPX | SELL | 2026-01-30 | $953K | — | Filing → |