C. Ionel Stefan's most recent trade in Amprius Technologies Inc was a trade of 110,000 Common stock done . Disclosure was reported to the exchange on March 4, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Mar 2026 | 110,000 | 833,330 | - | 0 | Common stock | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 12.00 per share. | 28 Jan 2026 | 39,690 | 748,696 | - | 12.0 | 476,351 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 28 Jan 2026 | 39,600 | 0 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 28 Jan 2026 | 39,600 | 788,386 | - | 0.1 | 1,980 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.62 per share. | 28 Jan 2026 | 90 | 748,786 | - | 0.6 | 56 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 28 Jan 2026 | 90 | 0 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 12.04 per share. | 21 Jan 2026 | 492,827 | 748,696 | - | 12.0 | 5,931,912 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 21 Jan 2026 | 253,928 | 1,002,624 | - | 0.0 | 12,696 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 253,928 | 41,200 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 21 Jan 2026 | 166,104 | 1,241,523 | - | 0.0 | 8,305 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 166,104 | 0 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 12.00 per share. | 21 Jan 2026 | 73,280 | 748,696 | - | 12.0 | 879,411 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.45 per share. | 21 Jan 2026 | 72,795 | 1,075,419 | - | 0.5 | 32,758 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 72,795 | 0 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.62 per share. | 21 Jan 2026 | 41,563 | 790,259 | - | 0.6 | 25,769 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 41,563 | 90 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 21 Jan 2026 | 15,883 | 821,976 | - | 0.0 | 794 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 15,883 | 166,104 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 21 Jan 2026 | 15,834 | 806,093 | - | 0.1 | 792 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 15,834 | 295,128 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 Jan 2026 | 1,600 | 39,600 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 21 Jan 2026 | 1,600 | 750,296 | - | 0.1 | 80 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 12.00 per share. | 21 Jan 2026 | 1,600 | 748,696 | - | 12 | 19,200 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 10.51 per share. | 11 Dec 2025 | 198,255 | 748,696 | - | 10.5 | 2,083,382 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 11 Dec 2025 | 125,000 | 310,962 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 11 Dec 2025 | 125,000 | 946,951 | - | 0.1 | 6,250 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 10.08 per share. | 21 Nov 2025 | 25,024 | 821,951 | - | 10.1 | 252,274 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 6.82 per share. | 21 Aug 2025 | 19,159 | 846,975 | - | 6.8 | 130,592 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 2.43 per share. | 21 May 2025 | 20,366 | 866,134 | - | 2.4 | 49,530 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 19 Mar 2025 | 461,540 | 886,500 | - | 0 | Common stock | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Mar 2025 | 3,471 | 0 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.98 per share. | 14 Mar 2025 | 3,471 | 424,960 | - | 1.0 | 3,402 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 3.13 per share. | 21 Feb 2025 | 9,066 | 421,489 | - | 3.1 | 28,406 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 1.96 per share. | 21 Nov 2024 | 8,575 | 430,555 | - | 2.0 | 16,846 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 23 Oct 2024 | 139,613 | 139,613 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 23 Oct 2024 | 41,653 | 41,653 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 23 Oct 2024 | 3,471 | 3,471 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 1.04 per share. | 21 Aug 2024 | 8,800 | 386,168 | - | 1.0 | 9,152 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 1.33 per share. | 21 May 2024 | 5,272 | 399,089 | - | 1.3 | 6,999 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 1.36 per share. | 21 May 2024 | 4,121 | 394,968 | - | 1.4 | 5,588 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 19 Mar 2024 | 374,570 | 404,361 | - | 0 | Common stock | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 3.66 per share. | 14 Sep 2023 | 46,370 | 63,421 | - | 3.7 | 169,492 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Sale of securities on an exchange or to another person at price $ 3.89 per share. | 14 Sep 2023 | 33,630 | 29,791 | - | 3.9 | 130,727 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 09 Sep 2023 | 80,000 | 435,962 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 09 Sep 2023 | 80,000 | 109,791 | - | 0.1 | 4,000 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Dec 2022 | 30,000 | 515,962 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.05 per share. | 14 Dec 2022 | 30,000 | 30,000 | - | 0.1 | 1,500 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Payment of exercise price or tax liability using portion of securities received from the company at price $ 7.20 per share. | 14 Dec 2022 | 209 | 29,791 | - | 7.2 | 1,505 | Common stock |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Sep 2022 | 545,962 | 545,962 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Sep 2022 | 218,385 | 218,385 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Sep 2022 | 181,987 | 181,987 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Sep 2022 | 72,795 | 72,795 | - | - | Stock Option (right to buy) | |
| Amprius Tech Inc | C. Ionel Stefan | Chief Technology Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Sep 2022 | 72,795 | 72,795 | - | - | Stock Option (right to buy) |