InsiderTrades

Chu Steven

SEC CIK 1296381 · EDGAR

Buying vs selling by month open-market trades, last 24 months, AMPX
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
AMPXAmprius Technologies, Inc.Dir 137.8K — $5.86M 62023-06-092026-06-12

Most active insiders at AMPX, 12 months

#InsiderTitleBoughtSold
1 Sun KangDir —$57.63M
2 Stefan Constantin IonelCTO —$10.69M
3 HSIEH Wen HsuanDir —$7.62M
4 Chu StevenDir —$5.86M
5 DIXON DONALD RDir —$2.54M
6 Stepien Thomas MPres, Dir —$1.34M
7 RODRIGUEZ RICARDO C.CFO ——
8 SATTERTHWAITE LIVINGSTONDir ——
9 BAYLESS KATHLEEN ADir ——

Transactions 6

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-06-16 18:00 2026-06-12 AMPX Amprius Technologies, Inc. Chu Steven Dir A - Grant $0.00 +10.4K 137.8K +8% $0
DM 2026-03-12 2026-03-10+ AMPX Amprius Technologies, Inc. Chu Steven Dir S - Sale+OE $18.20 -322.2K 127.3K -72% -$5.86M
DM 2026-03-12 2026-03-10+ AMPX Amprius Technologies, Inc. Chu Steven Dir M - OptEx $1.28 +259.7K 294.0K +758% +$332.4K
2025-06-17 2025-06-13 AMPX Amprius Technologies, Inc. Chu Steven Dir A - Grant $0.00 +44.4K 189.8K +31% $0
2024-06-07 2024-06-07 AMPX Amprius Technologies, Inc. Chu Steven Dir A - Grant $0.00 +125.0K 145.4K +613% $0
2023-06-12 2023-06-09 AMPX Amprius Technologies, Inc. Chu Steven Dir A - Grant $0.00 +17.9K 20.4K +716% $0

Purchase Sale Sale after option exercise All abbreviations