| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
Steven Chu is Director at AMPX. Steven Chu's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $1.2M at current prices.
The AMPX filings lean toward selling, a net 322,197 shares.
Steven Chu has 7 Form 4 filings on record from September 2022 to June 2026, all as Director at Amprius Technologies (AMPX), 2022–2026.
The 14 reported transactions were 4 stock awards, 4 open-market sales, 3 option exercises and 3 option or other derivative awards.
Counted by filing, the open-market trades come to no purchases and 1 sale worth about $5.9M.
The only open-market sale was 322,197 shares of AMPX at an average $18.20 on March 12, 2026, about $5.9M.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 12, 2026 | AMPX Amprius Technologies, Inc. Wt | Director | Sale+OE | 322,197 | $18.20 | $5,863,983.95 | -71.7% | -10.2% | - |