Justin E Mirro $AMPX SEC Form 4 Insider Trading

Justin E Mirro has filed a total of 32 insider trades in $AMPX since 2021. Their most recent trade was a sale of 110,000 shares, made on Sep 05, 2024. Their largest trade was a sale of 210,000 shares, made on Jun 12, 2024. We estimate that they now own 3.3 million shares of $AMPX, worth an estimated $33.1 million.

Insider Trading at $AMPX

There have been a total of 122 insider trades reported at $AMPX since 2021, with 0 shares purchased and 10.9 million shares sold. The most active insider traders in $AMPX stock have been Jonathan Bornstein, Constantin Ionel Stefan, and Kang Sun. The most recent trade was a sale of 29,681 shares reported by Constantin Ionel Stefan (Chief Technology Officer), made on Aug 21, 2026.

$AMPX Executives and Stock Owners with Insider Trades

• Jonathan Bornstein, President of Amprius Lab

• Constantin Ionel Stefan, Chief Technology Officer

• Kang Sun, Chief Executive Officer

• Sandra Wallach, Chief Financial Officer

• Thomas M Stepien, Chief Executive Officer

• Kang Sun, See Remarks

*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.