InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Browse the detailed record of transactions filed by Stepien Thomas M, Chief Executive Officer. Officer active across 1 companies, notably Amprius Technologies, Inc.. Aggregated, 2 disclosures have been logged. The latest transaction was filed on 19 December 2025 — Attribution. Regulator: SEC (Form 4). All data is accessible without signup.
Declarations2 total
0200,000 shares0
Common stock
SEC:0002067233-26-000004·
0200,000 shares0
Common stock
SEC:0002067233-26-000004:0·
2 of 2 declarations
About Stepien Thomas M
Thomas M. Stepien is Chief Executive Officer of Amprius Technologies, Inc. He is responsible for the strategic and operational leadership of the company, contributing to its growth and efficiency. With a strong background in the technology sector, he plays a vital role in developing and implementing initiatives aimed at enhancing Amprius' performance. His leadership is crucial for achieving the company's objectives.
