Ambarella, Inc. engages in the development of low-power system-on-a-chip, or SoC, semiconductors and software for edge artificial intelligence, or AI, applications. Its products include video security, advanced driver assistance (ADAS), electronic mirror, drive recorder, driver or cabin monitoring, autonomous driving, and other robotics applications. The firm's geographical segments include Taiwan, Asia Pacific, Europe, North America other than United States and United States. The company was founded by Feng Ming Wang and Leslie D. Kohn on January 15, 2004 and is headquartered in Santa Clara, CA. |  |
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| Insider Trading |
Relationship |
Date |
Transaction |
Cost |
#Shares |
Value ($) |
#Shares Total |
SEC Form 4 |
| Ju Chi-Hong | Senior VP, Systems & GM, Asia | Jan 05 '26 | Sale | 75.58 | 7,728 | 584,105 | 146,039 | Jan 07 05:02 PM | | CHIHONG JOHN JU | Officer | Jan 05 '26 | Proposed Sale | 75.58 | 7,728 | 584,103 | | Jan 05 04:11 PM | | Ju Chi-Hong | Senior VP, Systems & GM, Asia | Dec 30 '25 | Sale | 70.32 | 3,765 | 264,755 | 153,767 | Dec 31 05:21 PM | | CHIHONG JOHN JU | Officer | Dec 30 '25 | Proposed Sale | 70.25 | 7,945 | 558,161 | | Dec 30 04:03 PM | | PAISLEY CHRISTOPHER B | Director | Dec 26 '25 | Sale | 72.18 | 500 | 36,090 | 41,279 | Dec 29 04:47 PM | | PAISLEY CHRISTOPHER B | Director | Dec 26 '25 | Proposed Sale | 72.18 | 500 | 36,090 | | Dec 29 07:36 AM | | Young John Alexander | CFO | Dec 18 '25 | Sale | 72.96 | 3,791 | 276,591 | 102,738 | Dec 19 04:47 PM | | Young John Alexander | CFO | Dec 17 '25 | Sale | 71.82 | 2,579 | 185,224 | 106,529 | Dec 19 04:47 PM | | Lee Chan W | Chief Operations Officer | Dec 17 '25 | Sale | 71.82 | 2,406 | 172,799 | 124,566 | Dec 19 04:47 PM | | Ju Chi-Hong | Senior VP, Systems & GM, Asia | Dec 17 '25 | Sale | 71.82 | 1,342 | 96,382 | 157,532 | Dec 19 04:46 PM | | Wang Feng-Ming | CEO | Dec 17 '25 | Sale | 71.82 | 4,950 | 355,509 | 783,979 | Dec 19 04:46 PM | | Schwarting Elizabeth M | Director | Dec 16 '25 | Sale | 72.38 | 624 | 45,163 | 6,690 | Dec 18 04:53 PM | | JOHN A YOUNG | Officer | Dec 18 '25 | Proposed Sale | 72.96 | 3,791 | 276,591 | | Dec 18 04:08 PM | | ELIZABETH M SCHWARTING | Director | Dec 16 '25 | Proposed Sale | 72.38 | 624 | 45,163 | | Dec 16 04:20 PM | | LESLIE KOHN | Officer | Dec 02 '25 | Proposed Sale | 71.59 | 150,000 | 10,738,845 | | Dec 02 04:16 PM | | Ju Chi-Hong | Senior VP, Systems & GM, Asia | Oct 14 '25 | Sale | 80.96 | 6,156 | 498,390 | 158,874 | Oct 15 05:00 PM | | Ju Chi-Hong | Senior VP, Systems & GM, Asia | Oct 13 '25 | Sale | 81.29 | 5,057 | 411,093 | 165,030 | Oct 15 05:00 PM | | CHIHONG JOHN JU | Officer | Oct 14 '25 | Proposed Sale | 80.96 | 6,156 | 498,390 | | Oct 14 04:05 PM | | CHIHONG JOHN JU | Officer | Oct 13 '25 | Proposed Sale | 81.29 | 5,057 | 411,093 | | Oct 14 08:52 AM | | Schwarting Elizabeth M | Director | Oct 06 '25 | Sale | 85.38 | 2,664 | 227,445 | 7,314 | Oct 08 03:31 PM | | ELIZABETH M SCHWARTING | Director | Oct 06 '25 | Proposed Sale | 85.38 | 2,664 | 227,445 | | Oct 06 04:32 PM | | CHRISTOPHER DAY | Officer | Sep 22 '25 | Proposed Sale | 89.00 | 1,000 | 89,000 | | Sep 22 04:12 PM | | Young John Alexander | CFO | Sep 17 '25 | Sale | 79.43 | 2,566 | 203,817 | 109,108 | Sep 19 05:05 PM | | Lee Chan W | Chief Operating Officer | Sep 17 '25 | Sale | 79.43 | 1,947 | 154,650 | 126,972 | Sep 19 05:04 PM | | Kohn Leslie | Chief Technology Officer | Sep 17 '25 | Sale | 79.43 | 2,249 | 178,638 | 977,428 | Sep 19 05:04 PM | | Ju Chi-Hong | Sr. Vice President, Systems | Sep 17 '25 | Sale | 79.43 | 1,168 | 92,774 | 170,087 | Sep 19 05:03 PM | | Wang Feng-Ming | CEO | Sep 17 '25 | Sale | 79.43 | 4,928 | 391,431 | 788,929 | Sep 19 05:00 PM | | CHRISTOPHER DAY | Officer | Sep 19 '25 | Proposed Sale | 84.00 | 1,000 | 84,000 | | Sep 19 04:04 PM | | CHRISTOPHER DAY | Officer | Sep 18 '25 | Proposed Sale | 82.50 | 829 | 68,392 | | Sep 18 05:14 PM | | Chen Yun-Lung | VP, Business Development | Sep 10 '25 | Sale | 84.42 | 8,492 | 716,895 | 61,651 | Sep 12 04:55 PM | | YUN-LUNG CHEN | Officer | Sep 10 '25 | Proposed Sale | 84.42 | 8,492 | 716,895 | | Sep 10 04:12 PM | | CHRISTOPHER DAY | Officer | Sep 08 '25 | Proposed Sale | 85.00 | 1,772 | 150,620 | | Sep 08 04:05 PM | | CHRISTOPHER DAY | Officer | Jul 14 '25 | Proposed Sale | 66.83 | 2,907 | 194,289 | | Jul 14 04:54 PM | | PAISLEY CHRISTOPHER B | Director | Jun 25 '25 | Sale | 62.58 | 1,000 | 62,580 | 39,281 | Jun 27 12:14 PM | | PAISLEY CHRISTOPHER B | Director | Jun 25 '25 | Proposed Sale | 62.58 | 1,000 | 62,580 | | Jun 25 11:27 AM | | Young John Alexander | CFO | Jun 17 '25 | Sale | 52.26 | 2,435 | 127,253 | 111,451 | Jun 20 04:16 PM | | Day Christopher | VP, Marketing | Jun 17 '25 | Sale | 52.26 | 342 | 17,873 | 15,099 | Jun 20 04:16 PM | | Lee Chan W | Chief Operating Officer | Jun 17 '25 | Sale | 52.26 | 1,601 | 83,668 | 128,696 | Jun 20 04:16 PM | | Kohn Leslie | Chief Technology Officer | Jun 17 '25 | Sale | 52.26 | 1,715 | 89,626 | 979,677 | Jun 20 04:16 PM | | Ju Chi-Hong | Sr. Vice President, Systems | Jun 17 '25 | Sale | 52.26 | 1,108 | 57,904 | 171,032 | Jun 20 04:16 PM | | Wang Feng-Ming | CEO | Jun 17 '25 | Sale | 52.26 | 4,677 | 244,420 | 793,634 | Jun 20 04:16 PM | | PAISLEY CHRISTOPHER B | Director | Mar 25 '25 | Sale | 55.50 | 500 | 27,750 | 40,281 | Mar 26 05:49 PM | | PAISLEY CHRISTOPHER B | Director | Mar 25 '25 | Proposed Sale | 55.50 | 500 | 27,750 | | Mar 25 10:40 AM | | Young John Alexander | CFO | Mar 18 '25 | Sale | 55.02 | 2,103 | 115,707 | 113,886 | Mar 20 04:44 PM | | Day Christopher | VP, Marketing | Mar 18 '25 | Sale | 55.02 | 479 | 26,355 | 15,441 | Mar 20 04:44 PM | | Lee Chan W | Chief Operating Officer | Mar 18 '25 | Sale | 55.02 | 1,468 | 80,769 | 130,297 | Mar 20 04:43 PM | | Kohn Leslie | Chief Technology Officer | Mar 18 '25 | Sale | 55.02 | 1,584 | 87,152 | 981,392 | Mar 20 04:43 PM | | Ju Chi-Hong | Sr. Vice President, Systems | Mar 18 '25 | Sale | 55.02 | 1,034 | 56,891 | 172,140 | Mar 20 04:43 PM | | Wang Feng-Ming | CEO | Mar 18 '25 | Sale | 55.02 | 3,194 | 175,734 | 798,311 | Mar 20 04:43 PM | | Young John Alexander | CFO | Mar 06 '25 | Sale | 55.11 | 2,663 | 146,758 | 115,755 | Mar 07 04:23 PM | | Day Christopher | VP, Marketing | Mar 06 '25 | Sale | 55.11 | 834 | 45,962 | 15,686 | Mar 07 04:22 PM | | Lee Chan W | Chief Operating Officer | Mar 06 '25 | Sale | 55.11 | 2,108 | 116,172 | 131,531 | Mar 07 04:22 PM | | Kohn Leslie | Chief Technology Officer | Mar 06 '25 | Sale | 55.11 | 2,316 | 127,635 | 982,976 | Mar 07 04:22 PM | | Ju Chi-Hong | Sr. Vice President, Systems | Mar 06 '25 | Sale | 55.11 | 1,859 | 102,449 | 172,940 | Mar 07 04:22 PM | | Wang Feng-Ming | CEO | Mar 06 '25 | Sale | 55.11 | 4,104 | 226,171 | 801,271 | Mar 07 04:21 PM |
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