AMPX Amprius Technologies, Inc.
NYSE · SEC CIK 1899287 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $85.69M 27 sales by 6 insiders
- Filings on record
- 126 since 2022-09-16, latest 2026-08-25 17:22
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Sun Kang | Dir | — | $57.63M |
| Stefan Constantin Ionel | CTO | — | $10.69M |
| HSIEH Wen Hsuan | Dir | — | $7.62M |
| Chu Steven | Dir | — | $5.86M |
| DIXON DONALD R | Dir | — | $2.54M |
| Stepien Thomas M | Pres, Dir | — | $1.34M |
| RODRIGUEZ RICARDO C. | CFO | — | — |
| SATTERTHWAITE LIVINGSTON | Dir | — | — |
| BAYLESS KATHLEEN A | Dir | — | — |
Transactions 142
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2024-04-03 | 2024-04-02 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +126.0K | 684.9K | +23% | +$6,299 |
| 2024-03-19 | 2024-03-19 | AMPX | Wallach Sandra | CFO | A - Grant | $0.00 | +749.7K | 749.7K | New | $0 | |
| 2024-03-19 | 2024-03-19 | AMPX | Sun Kang | See Remarks, Dir | A - Grant | $0.00 | +1.42M | 1.42M | New | $0 | |
| 2024-03-19 | 2024-03-19 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | A - Grant | $0.00 | +558.9K | 558.9K | New | $0 | |
| 2024-03-19 | 2024-03-19 | AMPX | Stefan Constantin Ionel | CTO | A - Grant | $0.00 | +374.6K | 404.4K | +1,257% | $0 | |
| DM | 2024-03-07 | 2024-03-05+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $2.88 | -150.0K | 0 | -100% | -$432.4K |
| DM | 2024-03-07 | 2024-03-05+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +150.0K | 109.8K | New | +$7,500 |
| D | 2024-02-07 | 2024-02-06 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +150.0K | 150.0K | New | +$7,500 |
| D | 2024-02-07 | 2024-02-06 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $4.43 | -150.0K | 0 | -100% | -$664.5K |
| DM | 2024-01-04 | 2024-01-02 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $4.44 | -150.0K | 0 | -100% | -$666.5K |
| D | 2024-01-04 | 2024-01-02 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +150.0K | 150.0K | New | +$7,500 |
| M | 2023-12-15 | 2023-12-13+ | AMPX | Amprius, Inc. | 10% | S - Sale | $3.57 | -300.0K | 65.22M | -0.5% | -$1.07M |
| MI | 2023-12-14 | 2023-12-12+ | AMPX | MIRRO JUSTIN E | Dir | S - Sale | $3.62 | -405.0K | 2.24M | -15% | -$1.47M |
| MI | 2023-12-07 | 2023-12-05+ | AMPX | MIRRO JUSTIN E | Dir | S - Sale | $4.08 | -90.0K | 1.94M | -4% | -$367.6K |
| DM | 2023-12-07 | 2023-12-05+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +150.0K | 47.8K | New | +$7,500 |
| DM | 2023-12-07 | 2023-12-05+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $4.05 | -150.0K | 0 | -100% | -$607.8K |
| MI | 2023-11-30 | 2023-11-28+ | AMPX | MIRRO JUSTIN E | Dir | S - Sale | $3.97 | -150.0K | 1.99M | -7% | -$595.8K |
| D | 2023-11-21 | 2023-11-20 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $3.84 | -27.6K | 0 | -100% | -$106.1K |
| D | 2023-11-21 | 2023-11-20 | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +27.6K | 27.6K | New | +$1,382 |
| DM | 2023-11-09 | 2023-11-07+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $3.00 | -122.4K | 0 | -100% | -$366.6K |
| DM | 2023-11-09 | 2023-11-07+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +122.4K | 48.1K | New | +$6,118 |
| DM | 2023-10-12 | 2023-10-10+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +150.0K | 70.3K | New | +$7,500 |
| DM | 2023-10-12 | 2023-10-10+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $4.21 | -150.0K | 0 | -100% | -$632.1K |
| DM | 2023-09-21 | 2023-09-19+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | S - Sale+OE | $4.36 | -150.0K | 0 | -100% | -$654.6K |
| DM | 2023-09-21 | 2023-09-19+ | AMPX | Bornstein Jonathan | Pres of Amprius Lab | M - OptEx | $0.05 | +150.0K | 143.5K | New | +$7,500 |
| M | 2023-09-18 | 2023-09-14+ | AMPX | Stefan Constantin Ionel | CTO | S - Sale | $3.76 | -80.0K | 29.8K | -73% | -$300.5K |
| D | 2023-09-12 | 2023-09-09 | AMPX | Stefan Constantin Ionel | CTO | M - OptEx | $0.05 | +80.0K | 109.8K | +269% | +$4,000 |
| MI | 2023-06-16 | 2023-06-14+ | AMPX | MIRRO JUSTIN E | Dir | S - Sale | $9.14 | -111.0K | 2.56M | -4% | -$1.01M |
| 2023-06-15 | 2023-06-14 | AMPX | Gustanski Mary | Dir | A - Grant | $0.00 | +31.8K | 31.8K | New | $0 | |
| 2023-06-12 | 2023-06-09 | AMPX | Chu Steven | Dir | A - Grant | $0.00 | +17.9K | 20.4K | +716% | $0 | |
| 2023-06-12 | 2023-06-09 | AMPX | BAYLESS KATHLEEN A | Dir | A - Grant | $0.00 | +1,491 | 36.3K | +4% | $0 | |
| 2023-06-12 | 2023-06-09 | AMPX | DIXON DONALD R | Dir | A - Grant | $0.00 | +17.9K | 17.9K | New | $0 | |
| 2023-06-12 | 2023-06-09 | AMPX | MIRRO JUSTIN E | Dir | A - Grant | $0.00 | +17.9K | 17.9K | New | $0 | |
| 2023-06-12 | 2023-06-09 | AMPX | HSIEH Wen Hsuan | Dir | A - Grant | $0.00 | +17.9K | 17.9K | New | $0 | |
| 2023-05-03 | 2022-12-14 | AMPX | Stefan Constantin Ionel | CTO | F - Tax | $7.20 | -209 | 29.8K | -0.7% | -$1,505 | |
| 2023-04-27 | 2023-04-25 | AMPX | BAYLESS KATHLEEN A | Dir | A - Grant | $0.00 | +34.8K | 34.8K | New | $0 | |
| D | 2022-12-15 | 2022-12-14 | AMPX | Stefan Constantin Ionel | CTO | M - OptEx | $0.05 | +30.0K | 30.0K | New | +$1,500 |
| D | 2022-09-16 | 2022-09-14 | AMPX | Kensington Capital Sponsor IV LLC | Former 10% holder (see ftn 2) | C - Cnv Deriv | — | +9.86M | 13.12M | +302% | — |
| D | 2022-09-16 | 2022-09-14 | AMPX | Kensington Capital Sponsor IV LLC | Former 10% holder (see ftn 2) | J - Other | $0.00 | -13.12M | 0 | -100% | $0 |
| DMI | 2022-09-16 | 2022-09-14 | AMPX | MIRRO JUSTIN E | Dir | J - Other | — | -8.63M | 1.00M | -90% | — |
| DI | 2022-09-16 | 2022-09-14 | AMPX | MIRRO JUSTIN E | Dir | A - Grant | — | +111.0K | 2.61M | +4% | — |
| DI | 2022-09-16 | 2022-09-14 | AMPX | MIRRO JUSTIN E | Dir | C - Cnv Deriv | — | +9.86M | 13.12M | +302% | — |
Purchase Sale Sale after option exercise All abbreviations