Amprius Technologies, Inc. AMPX
CIK 0001899287
Form 4 transactions dated Nov 1, 2023 to Nov 9, 2026, as reported to the SEC.
Insider purchases & sales
- Purchased
- $0.00
- Sold
- $95.88M
Nov 1, 2023 – Aug 25, 2026
Available records · partial months are marked ·
| Date | Insider | Activity | Trade value (USD) | % of prior holding | |
|---|---|---|---|---|---|
| Aug 24, 2026 | Stepien Thomas M Chief Executive Officer · Director | Sale | $80.24K 8,000 shares sold | 1.33% sold Direct holding | ▾ |
| Aug 21, 2026 | Stepien Thomas M Chief Executive Officer · Director | Sale | $243.31K 23,529 shares sold | 3.76% sold Direct holding | ▾ |
| Aug 21, 2026 | Stefan Constantin Ionel Chief Technology Officer | Sale | $306.93K 29,681 shares sold | 3.70% sold Direct holding | ▾ |
| Aug 21, 2026 | Sun Kang Director | Sale | $642.19K 62,101 shares sold | 4.85% sold Direct holding | ▾ |
| Jun 15, 2026 | DIXON DONALD R Director | Sale | $1.46M 85,000 shares sold | 19.13% sold Indirect holding | ▾ |
| Jun 9, 2026 | DIXON DONALD R Director | Sale | $765.20K 40,000 shares sold | 8.26% sold Indirect holding | ▾ |
| Jun 4, 2026 | Stepien Thomas M Chief Executive Officer · Director | Sale | $41.94K 2,000 shares sold | 0.32% sold Direct holding | ▾ |
| May 27, 2026 | Stepien Thomas M Chief Executive Officer · Director | Sale | $75.22K 4,375 shares sold | 0.63% sold Direct holding | ▾ |
| May 27, 2026 | Stefan Constantin Ionel Chief Technology Officer | Sale | $55.16K 3,208 shares sold | 0.40% sold Direct holding | ▾ |
| May 27, 2026 | Sun Kang Director | Sale | $6.12K 356 shares sold | 0.03% sold Direct holding | ▾ |
Showing 28 / 28 record groups in 2026. The complete set is available through the API.
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