Chu Steven Insider Trading -- Recent SEC Form 4 Transactions

Chu Steven (CIK 1296381) reported 9 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-16). Recent activity: Buy AMPX (10,423 shares), Buy AMPX (104,132 shares), Sell AMPX (166,632 shares), Buy AMPX (86,143 shares), Buy AMPX (69,422 shares). Source: SEC Form 4.

DateCompanyRoleTypeSharesValue
2026-06-16Amprius Technologies, Inc. (AMPX)DirectorBuy10,423$0
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorBuy104,132$64,562
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorSell166,632$3.0M
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorBuy86,143$224,833
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorBuy69,422$43,042
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorSell100,000$1.9M
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorSell50,000$910,500
2026-03-12Amprius Technologies, Inc. (AMPX)DirectorSell5,565$103,119
2025-06-17Amprius Technologies, Inc. (AMPX)DirectorBuy44,444$0

Source: SEC Form 4 filings · as of 2026-06-16