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Thomas M Stepien

Chief Executive Officer

Thomas M Stepien (Chief Executive Officer) filed 2 Form 4 reports in the trailing twelve months (0 purchases, 2 sales), most often in Amprius Technologies, Inc. (AMPX). The largest single filing was $898K of AMPX (60,702 sh × $14.79, as filed), executed May 21.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
2
0 buys · 2 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$1.1M
shares × price, as filed
Last traded
Aug 21
Filed Aug 25

Median ADV $72.5M across their filed names

Open performance
Volume by month
$898K$449K$0Oct 2024Apr 2025Oct 2025Apr 2026May 2026 · sells $898KAug 2026 · sells $243K
Buys $0 Sells $1.1M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Industrials 2 filings

Sector per market data · by filing · past 12 months

Most traded names
AMPX Amprius Technologies, Inc. AMPX · 0 buys · 2 sells 2 filings
Recent filings
AMPXSALE Amprius Technologies, Inc. View filing → $243K
23,529 sh × $10.34
Exec Aug 21
Filed Aug 25 · 5:21 PM ET
AMPXSALE Amprius Technologies, Inc. View filing → $898K
60,702 sh × $14.79
Exec May 21
Filed May 26 · 5:30 PM ET