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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| AMBA | Lee Chan W | Chief Operations Officer | Jun 17 '26 | Sale | 67.87 | 2,951 | 200,284 | 157,098 | Jun 18 |
| AMBA | Lee Chan W | Chief Operations Officer | Mar 19 '26 | Sale | 54.14 | 3,641 | 197,124 | 160,049 | Mar 19 |
| AMBA | Lee Chan W | Chief Operations Officer | Mar 17 '26 | Option Exercise | 0.00 | 13,678 | 0 | 163,099 | Mar 19 |
| AMBA | Lee Chan W | Chief Operations Officer | Mar 17 '26 | Sale | 52.77 | 6,729 | 355,089 | 156,370 | Mar 19 |
| AMBA | Lee Chan W | Chief Operations Officer | Dec 17 '25 | Sale | 71.82 | 2,406 | 172,799 | 124,566 | Dec 19 |
| AMBA | Lee Chan W | Chief Operating Officer | Sep 17 '25 | Sale | 79.43 | 1,947 | 154,650 | 126,972 | Sep 19 |
| AMBA | Lee Chan W | Chief Operating Officer | Jun 17 '25 | Sale | 52.26 | 1,601 | 83,668 | 128,696 | Jun 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Mar 18 '25 | Sale | 55.02 | 1,468 | 80,769 | 130,297 | Mar 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Mar 06 '25 | Sale | 55.11 | 2,108 | 116,172 | 131,531 | Mar 07 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 16 '25 | Sale | 77.21 | 1,000 | 77,210 | 109,918 | Jan 17 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 15 '25 | Sale | 75.90 | 1,000 | 75,900 | 110,918 | Jan 17 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 14 '25 | Sale | 75.68 | 1,000 | 75,680 | 111,918 | Jan 14 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 13 '25 | Sale | 73.50 | 1,000 | 73,500 | 112,918 | Jan 14 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 10 '25 | Sale | 74.12 | 1,000 | 74,120 | 113,918 | Jan 14 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 08 '25 | Sale | 73.48 | 1,000 | 73,480 | 114,918 | Jan 08 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 07 '25 | Sale | 78.73 | 1,000 | 78,730 | 115,918 | Jan 08 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 06 '25 | Sale | 79.15 | 1,000 | 79,150 | 116,918 | Jan 08 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 03 '25 | Sale | 75.06 | 1,000 | 75,060 | 117,918 | Jan 03 |
| AMBA | Lee Chan W | Chief Operating Officer | Jan 02 '25 | Sale | 73.32 | 1,000 | 73,320 | 118,918 | Jan 03 |
| AMBA | Lee Chan W | Chief Operating Officer | Dec 16 '24 | Sale | 75.41 | 1,488 | 112,210 | 119,918 | Dec 18 |
| AMBA | Lee Chan W | Chief Operating Officer | Sep 17 '24 | Sale | 53.54 | 1,490 | 79,775 | 121,406 | Sep 19 |
| AMBA | Lee Chan W | Chief Operating Officer | Jun 18 '24 | Sale | 55.48 | 1,504 | 83,442 | 122,642 | Jun 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Mar 18 '24 | Sale | 49.27 | 1,075 | 52,965 | 124,146 | Mar 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Mar 08 '24 | Sale | 57.16 | 642 | 36,697 | 125,003 | Mar 11 |
| AMBA | Lee Chan W | Chief Operating Officer | Dec 19 '23 | Sale | 63.04 | 1,520 | 95,821 | 101,336 | Dec 21 |
| AMBA | Lee Chan W | Chief Operating Officer | Sep 18 '23 | Sale | 57.30 | 1,484 | 85,033 | 102,856 | Sep 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Jun 20 '23 | Sale | 84.80 | 1,492 | 126,522 | 104,177 | Jun 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Mar 17 '23 | Sale | 76.85 | 9,430 | 724,696 | 80,437 | Mar 17 |
| AMBA | Lee Chan W | Chief Operating Officer | Mar 15 '23 | Option Exercise | 0.00 | 53,684 | 0 | 89,867 | Mar 17 |
| AMBA | Lee Chan W | Chief Operating Officer | Dec 16 '22 | Option Exercise | 0.00 | 8,098 | 0 | 68,946 | Dec 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Dec 16 '22 | Sale | 83.77 | 2,055 | 172,147 | 66,891 | Dec 20 |
| AMBA | Lee Chan W | Chief Operating Officer | Jun 16 '22 | Sale | 66.25 | 2,184 | 144,690 | 62,778 | Jun 17 |
| AMBA | Lee Chan W | Chief Operating Officer | Jun 16 '22 | Option Exercise | 0.00 | 2,237 | 0 | 6,713 | Jun 17 |