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AMPXAmprius Technologies, Inc.

Thomas Stepien

Chief Executive Officer, Director at Amprius Technologies, Inc., as of Aug 25, 2026Sold $1.3M of stock in the past 12 months: 91% to cover taxes and 9% with no plan disclosed.

Updated Oct 15, 2026 from SEC filings · covers Oct 16, 2025 to Oct 15, 2026
99K
shares sold, past 12 months
5
days with sales
$898K
largest single day, May 21, 2026
1
company filed for

Share of stake sold and shares held at Amprius Technologies, Inc. are not shown: the holdings do not reconcile with the filings. Why

Selling by month

Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

To cover taxesNo plan disclosedOne dollar scale for every month; the tallest bar is labeled
OctNovDecJanFebMarAprMay 2026: $973K to cover taxes$973KMayJun 2026: $42K no plan disclosedJunJulAug 2026: $243K to cover taxesAug 2026: $80K no plan disclosedAugSepOct

Pattern

What the filings show, past 12 months. Nothing here rates or predicts.

Roles from filings

Every company we track where this person has filed, newest filing first.

CompanyTitleFirst filingLatest filing
Amprius Technologies, Inc. (AMPX)Chief Executive Officer, DirectorMay 6, 2025Aug 25, 2026

Recent filings

The last 5 days with transactions, newest first, one line per trade date. Each number links to an SEC filing.

This page shows only what this person reported on SEC ownership filings. See the methodology. Spotted something wrong? Report an error.