Amprius Technologies, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Wallach Sandra | Chief Financial Officer | Sale | 10,549 | $1.33 | $14,030 | 739,151 | May 22, 2024 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 1,007,867 | $0.05 | $50,393 | 1,566,797 | Apr 12, 2024 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 125,983 | $0.05 | $6,299 | 684,913 | Apr 2, 2024 |
| Stefan Constantin Ionel | Chief Technology Officer | Award / Grant | 374,570 | — | — | 404,361 | Mar 19, 2024 |
| Bornstein Jonathan | President of Amprius Lab | Award / Grant | 558,930 | — | — | 558,930 | Mar 19, 2024 |
| Wallach Sandra | Chief Financial Officer | Award / Grant | 749,700 | — | — | 749,700 | Mar 19, 2024 |
| Sun Kang | See Remarks | Award / Grant | 1,419,670 | — | — | 1,419,670 | Mar 19, 2024 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 109,800 | $0.05 | $5,490 | 109,800 | Mar 6, 2024 |
| Bornstein Jonathan | President of Amprius Lab | Sale | 150,000 | $4.43 | $664,500 | — | Feb 6, 2024 |
| Bornstein Jonathan | President of Amprius Lab | Sale | 25,366 | $5.05 | $128,098 | — | Jan 2, 2024 |
| Amprius, Inc. | — | Sale | 100,000 | $3.54 | $354,000 | 65,215,552 | Dec 13, 2023 |
| MIRRO JUSTIN E | — | Sale | 60,000 | $3.68 | $220,800 | 2,237,142 | Dec 12, 2023 |
| Bornstein Jonathan | President of Amprius Lab | Sale | 54,477 | $3.88 | $211,371 | — | Dec 5, 2023 |
| MIRRO JUSTIN E | — | Sale | 10,000 | $4.31 | $43,100 | 1,940,000 | Dec 5, 2023 |
| MIRRO JUSTIN E | — | Sale | 15,000 | $3.70 | $55,500 | 1,985,000 | Nov 30, 2023 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 27,631 | $0.05 | $1,382 | 27,631 | Nov 20, 2023 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 48,052 | $0.05 | $2,403 | 48,052 | Nov 9, 2023 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 70,329 | $0.05 | $3,516 | 70,329 | Oct 12, 2023 |
| Bornstein Jonathan | President of Amprius Lab | Option Exercise | 143,516 | $0.05 | $7,176 | 143,516 | Sep 19, 2023 |
| Stefan Constantin Ionel | Chief Technology Officer | Sale | 33,630 | $3.89 | $130,821 | 29,791 | Sep 14, 2023 |
| Stefan Constantin Ionel | Chief Technology Officer | Option Exercise | 80,000 | $0.05 | $4,000 | 109,791 | Sep 9, 2023 |
| MIRRO JUSTIN E | — | Sale | 50,000 | $9.50 | $475,000 | 2,558,142 | Jun 15, 2023 |
| Gustanski Mary | — | Award / Grant | 31,813 | — | — | 31,813 | Jun 14, 2023 |
| BAYLESS KATHLEEN A | — | Award / Grant | 1,491 | — | — | 36,253 | Jun 9, 2023 |
| DIXON DONALD R | — | Award / Grant | 17,895 | — | — | 17,895 | Jun 9, 2023 |
| Chu Steven | — | Award / Grant | 17,895 | — | — | 20,395 | Jun 9, 2023 |
| MIRRO JUSTIN E | — | Award / Grant | 17,895 | — | — | 17,895 | Jun 9, 2023 |
| HSIEH Wen Hsuan | — | Award / Grant | 17,895 | — | — | 17,895 | Jun 9, 2023 |
| BAYLESS KATHLEEN A | — | Award / Grant | 34,762 | — | — | 34,762 | Apr 25, 2023 |
| Stefan Constantin Ionel | Chief Technology Officer | Option Exercise | 30,000 | $0.05 | $1,500 | 30,000 | Dec 14, 2022 |
| Stefan Constantin Ionel | Chief Technology Officer | Tax Withholding | 209 | $7.20 | $1,505 | 29,791 | Dec 14, 2022 |
| MIRRO JUSTIN E | — | C | 9,857,142 | — | — | 13,124,642 | Sep 14, 2022 |
| Kensington Capital Sponsor IV LLC | — | Other | 13,124,642 | — | — | — | Sep 14, 2022 |