Amprius Technologies, Inc. engages in the development, manufacture, and market lithium-ion batteries for mobility applications, including the aviation, electric vehicle and light electric vehicle industries. It operates through the United States and Rest of the World geographical segments. The company was founded by Mark C. Platshon in 2008 and headquartered in Fremont, CA. |  |
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| Insider Trading |
Relationship |
Date |
Transaction |
Cost |
#Shares |
Value ($) |
#Shares Total |
SEC Form 4 |
| Sun Kang | Chief Executive Officer | Nov 17 '25 | Option Exercise | 0.28 | 1,000,000 | 278,125 | 2,472,306 | Nov 19 05:49 PM | | Sun Kang | Chief Executive Officer | Nov 17 '25 | Sale | 10.60 | 1,000,000 | 10,595,300 | 1,472,306 | Nov 19 05:49 PM | | KANG SUN | Director | Nov 17 '25 | Proposed Sale | 11.29 | 1,000,000 | 11,290,000 | | Nov 17 04:36 PM | | Stefan Constantin Ionel | Chief Technology Officer | Aug 21 '25 | Sale | 6.82 | 19,159 | 130,592 | 846,975 | Aug 25 08:04 PM | | Wallach Sandra | Chief Financial Officer | Aug 21 '25 | Sale | 6.82 | 28,390 | 193,512 | 1,005,275 | Aug 25 08:02 PM | | Sun Kang | Chief Executive Officer | Aug 21 '25 | Sale | 6.82 | 65,654 | 447,511 | 1,472,306 | Aug 25 07:59 PM | | Stefan Constantin Ionel | OFFICER | Aug 21 '25 | Proposed Sale | 6.82 | 19,159 | 130,592 | | Aug 25 07:34 PM | | Kang Sun | Officer | Aug 21 '25 | Proposed Sale | 6.82 | 65,654 | 447,511 | | Aug 25 07:33 PM | | Sandra Wallach | Officer | Aug 21 '25 | Proposed Sale | 6.82 | 28,390 | 193,512 | | Aug 25 07:33 PM | | Stefan Constantin Ionel | Chief Technology Officer | May 21 '25 | Sale | 2.43 | 20,366 | 49,530 | 866,134 | May 23 05:54 PM | | Wallach Sandra | Chief Financial Officer | May 21 '25 | Sale | 2.43 | 27,595 | 67,111 | 1,033,665 | May 23 05:51 PM | | Sun Kang | Chief Executive Officer | May 21 '25 | Sale | 2.43 | 69,786 | 169,720 | 1,812,235 | May 23 05:48 PM | | Constantin Ionel Stefan | Officer | May 21 '25 | Proposed Sale | 2.43 | 20,366 | 49,530 | | May 23 05:46 PM | | Sandra Wallach | Officer | May 21 '25 | Proposed Sale | 2.43 | 27,595 | 67,111 | | May 23 05:44 PM | | Kang Sun | Officer | May 21 '25 | Proposed Sale | 2.43 | 69,786 | 169,720 | | May 23 05:43 PM | | Stefan Constantin Ionel | Chief Technology Officer | Mar 14 '25 | Option Exercise | 0.98 | 3,471 | 3,402 | 424,960 | Mar 18 05:07 PM | | Bornstein Jonathan | President of Amprius Lab | Mar 10 '25 | Option Exercise | 0.98 | 3,471 | 3,402 | 422,668 | Mar 12 05:14 PM | | Sun Kang | Chief Executive Officer | Feb 21 '25 | Sale | 3.13 | 34,353 | 107,635 | 1,282,621 | Feb 24 07:42 PM | | Wallach Sandra | Chief Financial Officer | Feb 21 '25 | Sale | 3.13 | 18,142 | 56,843 | 678,000 | Feb 24 07:40 PM | | Stefan Constantin Ionel | Chief Technology Officer | Feb 21 '25 | Sale | 3.13 | 9,066 | 28,406 | 421,489 | Feb 24 07:38 PM | | Bornstein Jonathan | President of Amprius Lab | Feb 21 '25 | Sale | 3.13 | 13,527 | 42,383 | 419,197 | Feb 24 07:37 PM | | Kang Sun | Director | Feb 21 '25 | Proposed Sale | 3.13 | 34,353 | 107,635 | | Feb 24 07:36 PM | | Constantin Ionel Stefan | Officer | Feb 21 '25 | Proposed Sale | 3.13 | 9,066 | 28,407 | | Feb 24 07:31 PM | | Jonathan Bornstein | Officer | Feb 21 '25 | Proposed Sale | 3.13 | 13,527 | 42,383 | | Feb 24 07:29 PM | | Sandra Wallach | Officer | Feb 21 '25 | Proposed Sale | 3.13 | 18,142 | 56,842 | | Feb 24 07:27 PM |
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