Thomas M Stepien

AMPX

Thomas M Stepien serves as director, officer: Chief Executive Officer at Amprius Technologies, Inc. (AMPX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

4 trades

$1.34M

Net Position

Net Seller

$1.34M

Companies Traded

AMPX

Active Period

May 2026 – Aug 2026

4 total trades

Most Recent

Sell AMPX

Aug 25, 2026 · $323.6K

Thomas M Stepien's Insider Trading at Amprius Technologies, Inc. (AMPX)

Buys

0 · $0.00

Sells

4 · $1.34M

Total Shares Bought

Total Shares Sold

98,606

AMPX Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 25, 2026	Sell	31,529	$10.26	$323.6K	602,096
Jun 5, 2026	Sell	2,000	$20.97	$41.9K	625,625
May 28, 2026	Sell	4,375	$17.19	$75.2K	694,923
May 26, 2026	Sell	60,702	$14.79	$897.7K	699,298