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Stepien Thomas M
Chief Executive OfficerDirectorCIK 0002067233
Largest Purchase
No open-market purchases in the recent filings.
Profile
- Filings
- 7
- Buy transactions
- 0
- Sell transactions
- 5
- Companies
- 1
- Active
- 2025–2026
Stepien Thomas M, Chief Executive Officer, Director, has filed 7 SEC reports (2025–2026), all concentrated in Amprius Technologies, Inc. (AMPX), totaling $1.3M in disclosed volume. Weighing $0 bought versus $1.3M sold, the history is heavily weighted toward selling. Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
7 loaded
| Aug 25 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer, Director | Sell | $323.6K |
| Jun 5 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer, Director | Sell | $41.9K |
| May 28 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer, Director | Sell | $75.2K |
| May 26 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer, Director | Sell | $897.7K |
| May 7 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer, Director | Grant | $0 |
| Mar 6 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer, Director | Grant | $0 |
| Dec 22 | AMPX Amprius Technologies, Inc. | Stepien Thomas M | President, Director | Grant | $0 |
7 filings