Chu Steven
SEC CIK 1296381 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AMPX | Amprius Technologies, Inc. | Dir | 137.8K | — | $5.86M | 6 | 2023-06-09 | 2026-06-12 |
Most active insiders at AMPX, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Sun Kang | Dir | — | $57.63M |
| 2 | Stefan Constantin Ionel | CTO | — | $10.69M |
| 3 | HSIEH Wen Hsuan | Dir | — | $7.62M |
| 4 | Chu Steven | Dir | — | $5.86M |
| 5 | DIXON DONALD R | Dir | — | $2.54M |
| 6 | Stepien Thomas M | Pres, Dir | — | $1.34M |
| 7 | RODRIGUEZ RICARDO C. | CFO | — | — |
| 8 | SATTERTHWAITE LIVINGSTON | Dir | — | — |
| 9 | BAYLESS KATHLEEN A | Dir | — | — |
Transactions 6
| 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