Stepien Thomas M
- SEC CIK
- 0002067233
In the past year, 4 open-market sale filings worth $1.34M and no purchases.
Current role at each company
- AMPX Amprius Technologies, Inc.Chief Executive Officeras of Aug 25, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $1.34M
- 4 filings
- Net
- −$1.34M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Stepien Thomas M as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 25, 2026 (view filing)5:21 PM ET | Aug 21-24 | 4 days | Stepien Thomas MChief Executive Officer | SSale | −31.5K | $10.26 | −$323.6K | −5.0%594.1K after | 2 lots |
| Jun 5, 2026 (view filing) | Jun 4 | 1 day | Stepien Thomas MChief Executive Officer | SSale | −2.00K | $20.97 | −$41.9K | −0.3%625.6K after | |
| May 28, 2026 (view filing) | May 27 | 1 day | Stepien Thomas MChief Executive Officer | SSale | −4.38K | $17.19 | −$75.2K | −0.6%694.9K after | |
| May 26, 2026 (view filing) | May 21 | 5 days | Stepien Thomas MChief Executive Officer | SSale | −60.7K | $14.79 | −$897.8K | −8.0%699.3K after |