Stepien Thomas M insider trades
Stepien Thomas M has filed 7 Form 4s with the SEC that we hold, all for Amprius Technologies, Inc. (AMPX), as Chief Executive Officer, Director. Across all of them we count 0 purchases worth $0 and 5 sales worth $1.3M reported on Form 4. In the last 12 months: 0 purchases ($0) and 5 sales ($1.3M). The largest single trade was a sale of 60,702 shares of Amprius Technologies, Inc. worth $897.8K, dated 2026-05-21. Of 2 sales filed since we began reading the 10b5-1 checkbox, 0 (0%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2025-05-06 and the latest 2026-08-25.
Amprius Technologies, Inc. (AMPX)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2026-05-21 | S, sale reported on Form 4 | 60,702 | $897.8K | 2026-05-26 |
| 2026-05-27 | S, sale reported on Form 4 | 4,375 | $75.2K | 2026-05-28 |
| 2026-06-04 | S, sale reported on Form 4 | 2,000 | $41.9K | 2026-06-05 |
| 2026-08-21 | S, sale reported on Form 4 | 23,529 | $243.3K | 2026-08-25 |
| 2026-08-24 | S, sale reported on Form 4 | 8,000 | $80.2K | 2026-08-25 |
Counted from the Form 4 filings this reporting owner (SEC CIK 2067233) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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