Constantin Ionel Stefan, Chief Technology Officer at Amprius Technologies, Inc. (AMPX), sold 1,133,814 shares at $12.00 ($13.6M) on 2026-01-21, disclosed to the SEC on 2026-01-23.
Open-market sale of $13.6M 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.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $12.00 | 73,280 | $879K | 6.4% |
| 2 | $12.00 | 73,280 | $879K | 6.4% |
| 3 | $12.04 | 492,827 | $5.9M | 43.5% |
| 4 | $12.04 | 492,827 | $5.9M | 43.5% |
| 5 | $12.00 | 1,600 | $19K | 0.1% |
| Total | $12.03 avg | 1,133,814 |
| $13.6M |
| 100% |
| Filing → |
| AMPX | SELL | 2026-05-26 | $426K | — | Filing → |
| AMPX | SELL | 2026-02-24 | $258K | — | Filing → |
| AMPX | SELL | 2026-01-30 | $953K | — | Filing → |