Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Ambarella Inc (AMBA) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Ambarella Inc. Table 2 shows the detailed insider transactions. This company's CIK number is 1280263.
Total stock buying since 2015: $1,014,855.
Total stock sales since 2015: $138,300,664.
Total stock option exercises since 2015: $8,292,578.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 45,124 | $2,626,589 | 0 | $0 |
| 2024 | 0 | $0 | 118,718 | $6,899,657 | 50,863 | $1,979,586 |
| 2023 | 0 | $0 | 105,457 | $7,791,891 | 153,725 | $373,468 |
| 2022 | 11,455 | $1,014,855 | 237,216 | $20,964,200 | 314,387 | $163,998 |
| 2021 | 0 | $0 | 206,581 | $29,459,378 | 337,783 | $871,611 |
| 2020 | 0 | $0 | 243,255 | $16,562,186 | 301,434 | $1,662,363 |
| 2019 | 0 | $0 | 167,375 | $9,409,394 | 262,307 | $816,985 |
| 2018 | 0 | $0 | 94,689 | $3,901,713 | 242,449 | $324,020 |
| 2017 | 0 | $0 | 117,481 | $6,248,408 | 155,740 | $34,699 |
| 2016 | 0 | $0 | 178,994 | $10,362,190 | 280,524 | $516,762 |
| 2015 | 0 | $0 | 329,511 | $24,075,058 | 366,789 | $1,549,086 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-06 | 0 | $0 | 12,878 | $683,322 | 0 | $0 |
| 2025-03 | 0 | $0 | 24,246 | $1,335,497 | 0 | $0 |
| 2025-01 | 0 | $0 | 8,000 | $607,770 | 0 | $0 |
| 2024-12 | 0 | $0 | 19,162 | $1,440,198 | 0 | $0 |
| 2024-10 | 0 | $0 | 2,904 | $168,432 | 0 | $0 |
| 2024-09 | 0 | $0 | 54,447 | $2,988,047 | 41,963 | $1,633,198 |
| 2024-07 | 0 | $0 | 1,408 | $86,817 | 0 | $0 |
| 2024-06 | 0 | $0 | 29,209 | $1,612,342 | 8,900 | $346,388 |
| 2024-03 | 0 | $0 | 11,588 | $603,821 | 0 | $0 |
| 2023-12 | 0 | $0 | 9,360 | $555,044 | 8,056 | $282,644 |
| 2023-09 | 0 | $0 | 11,624 | $667,039 | 0 | $0 |
| 2023-07 | 0 | $0 | 6,536 | $536,318 | 0 | $0 |
| 2023-06 | 0 | $0 | 17,473 | $1,408,446 | 0 | $0 |
| 2023-04 | 0 | $0 | 3,675 | $254,456 | 5,555 | $90,824 |
| 2023-03 | 0 | $0 | 56,789 | $4,370,588 | 140,114 | $0 |
| 2022-12 | 0 | $0 | 15,925 | $1,407,995 | 7,159 | $0 |
| 2022-10 | 0 | $0 | 0 | $0 | 1,555 | $60,520 |
| 2022-09 | 0 | $0 | 16,518 | $1,018,311 | 23,979 | $0 |
| 2022-06 | 0 | $0 | 11,637 | $777,048 | 24,719 | $29,190 |
| 2022-03 | 11,455 | $1,014,855 | 193,136 | $17,760,846 | 256,975 | $74,288 |
| 2021-12 | 0 | $0 | 65,354 | $12,911,526 | 83,552 | $294,642 |
| 2021-09 | 0 | $0 | 22,402 | $3,057,095 | 7,449 | $12,033 |
| 2021-07 | 0 | $0 | 0 | $0 | 44,444 | $391,996 |
| 2021-06 | 0 | $0 | 6,944 | $698,031 | 19,937 | $58,380 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-06-25 | Paisley Christopher B (Director) | Sale | 1,000 | 62.58 | 62,580 |
| 2025-06-17 | Young John Alexander (CFO) | Sale | 2,435 | 52.26 | 127,253 |
| 2025-06-17 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,108 | 52.26 | 57,904 |
| 2025-06-17 | Lee Chan W (Chief Operating Officer) | Sale | 1,601 | 52.26 | 83,668 |
| 2025-06-17 | Wang Feng-ming (CEO) | Sale | 4,677 | 52.26 | 244,420 |
| 2025-06-17 | Day Christopher (VP, Marketing) | Sale | 342 | 52.26 | 17,872 |
| 2025-06-17 | Kohn Leslie (Chief Technology Officer) | Sale | 1,715 | 52.26 | 89,625 |
| 2025-03-25 | Paisley Christopher B (Director) | Sale | 500 | 55.50 | 27,750 |
| 2025-03-18 | Young John Alexander (CFO) | Sale | 2,103 | 55.02 | 115,707 |
| 2025-03-18 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,034 | 55.02 | 56,890 |
| 2025-03-18 | Lee Chan W (Chief Operating Officer) | Sale | 1,468 | 55.02 | 80,769 |
| 2025-03-18 | Wang Feng-ming (CEO) | Sale | 3,194 | 55.02 | 175,733 |
| 2025-03-18 | Day Christopher (VP, Marketing) | Sale | 479 | 55.02 | 26,354 |
| 2025-03-18 | Kohn Leslie (Chief Technology Officer) | Sale | 1,584 | 55.02 | 87,151 |
| 2025-03-06 | Young John Alexander (CFO) | Sale | 2,663 | 55.11 | 146,757 |
| 2025-03-06 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,859 | 55.11 | 102,449 |
| 2025-03-06 | Lee Chan W (Chief Operating Officer) | Sale | 2,108 | 55.11 | 116,171 |
| 2025-03-06 | Wang Feng-ming (CEO) | Sale | 4,104 | 55.11 | 226,171 |
| 2025-03-06 | Day Christopher (VP, Marketing) | Sale | 834 | 55.11 | 45,961 |
| 2025-03-06 | Kohn Leslie (Chief Technology Officer) | Sale | 2,316 | 55.11 | 127,634 |
| 2025-01-16 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 77.21 | 77,210 |
| 2025-01-15 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 75.90 | 75,900 |
| 2025-01-14 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 75.68 | 75,680 |
| 2025-01-13 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 73.50 | 73,500 |
| 2025-01-10 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 74.12 | 74,120 |
| 2025-01-08 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 73.48 | 73,480 |
| 2025-01-07 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 78.73 | 78,730 |
| 2025-01-06 | Lee Chan W (Chief Operating Officer) | Sale | 1,000 | 79.15 | 79,150 |
| 2024-12-18 | Schwarting Elizabeth M (Director) | Sale | 253 | 71.56 | 18,103 |
| 2024-12-18 | Day Christopher (VP, Marketing) | Sale | 929 | 75.41 | 70,051 |
| 2024-12-16 | Young John Alexander (CFO) | Sale | 2,136 | 75.41 | 161,075 |
| 2024-12-16 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,048 | 75.41 | 79,029 |
| 2024-12-16 | Lee Chan W (Chief Operating Officer) | Sale | 1,488 | 75.41 | 112,210 |
| 2024-12-16 | Wang Feng-ming (CEO) | Sale | 4,296 | 75.41 | 323,961 |
| 2024-12-16 | Day Christopher (VP, Marketing) | Sale | 482 | 75.41 | 36,347 |
| 2024-12-16 | Kohn Leslie (Chief Technology Officer) | Sale | 1,757 | 75.41 | 132,495 |
| 2024-12-13 | Hon Hsiao-wuen (Director) | Sale | 377 | 74.15 | 27,953 |
| 2024-12-09 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 5,118 | 75.71 | 387,463 |
| 2024-12-02 | Day Christopher (VP, Marketing) | Sale | 1,278 | 71.61 | 91,511 |
| 2024-10-03 | Day Christopher (VP, Marketing) | Sale | 2,904 | 58.00 | 168,432 |
| 2024-09-25 | Paisley Christopher B (Director) | Sale | 500 | 53.71 | 26,855 |
| 2024-09-24 | Schwarting Elizabeth M (Director) | Sale | 913 | 54.74 | 49,976 |
| 2024-09-17 | Young John Alexander (CFO) | Sale | 2,139 | 53.54 | 114,522 |
| 2024-09-17 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,050 | 53.54 | 56,217 |
| 2024-09-17 | Lee Chan W (Chief Operating Officer) | Sale | 1,490 | 53.54 | 79,774 |
| 2024-09-17 | Wang Feng-ming (CEO) | Sale | 4,301 | 53.54 | 230,275 |
| 2024-09-17 | Day Christopher (VP, Marketing) | Sale | 483 | 53.54 | 25,859 |
| 2024-09-17 | Kohn Leslie (Chief Technology Officer) | Sale | 1,608 | 53.54 | 86,092 |
| 2024-09-05 | Wang Feng-ming (CEO) | Sale | 31,618 | 54.71 | 1,729,789 |
| 2024-09-05 | Wang Feng-ming (CEO) | Option Ex | 31,618 | 38.92 | 1,230,572 |
| 2024-09-04 | Wang Feng-ming (CEO) | Sale | 4,382 | 56.02 | 245,470 |
| 2024-09-04 | Wang Feng-ming (CEO) | Option Ex | 4,382 | 38.92 | 170,547 |
| 2024-09-03 | Chen Yun-lung (VP, Business Development) | Sale | 5,963 | 57.56 | 343,218 |
| 2024-09-03 | Chen Yun-lung (VP, Business Development) | Option Ex | 5,963 | 38.92 | 232,079 |
| 2024-07-08 | Day Christopher (VP, Marketing) | Sale | 1,408 | 61.66 | 86,817 |
| 2024-06-26 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 6,000 | 52.90 | 317,424 |
| 2024-06-21 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 8,900 | 55.53 | 494,217 |
| 2024-06-21 | Ju Chi-hong (Sr. Vice President, Systems) | Option Ex | 8,900 | 38.92 | 346,388 |
| 2024-06-18 | Young John Alexander (CFO) | Sale | 2,157 | 55.48 | 119,670 |
| 2024-06-18 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,059 | 55.48 | 58,753 |
| 2024-06-18 | Lee Chan W (Chief Operating Officer) | Sale | 1,504 | 55.48 | 83,441 |
| 2024-06-18 | Wang Feng-ming (CEO) | Sale | 3,058 | 55.48 | 169,657 |
| 2024-06-18 | Day Christopher (VP, Marketing) | Sale | 487 | 55.48 | 27,018 |
| 2024-06-18 | Kohn Leslie (Chief Technology Officer) | Sale | 1,623 | 55.48 | 90,044 |
| 2024-06-17 | Schwarting Elizabeth M (Director) | Sale | 230 | 55.56 | 12,778 |
| 2024-06-10 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,895 | 57.50 | 108,962 |
| 2024-06-07 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 2,296 | 56.78 | 130,378 |
| 2024-03-20 | Schwarting Elizabeth M (Director) | Sale | 240 | 49.47 | 11,872 |
| 2024-03-18 | Young John Alexander (CFO) | Sale | 1,546 | 49.27 | 76,171 |
| 2024-03-18 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 778 | 49.27 | 38,332 |
| 2024-03-18 | Lee Chan W (Chief Operating Officer) | Sale | 1,075 | 49.27 | 52,965 |
| 2024-03-18 | Wang Feng-ming (CEO) | Sale | 2,173 | 49.27 | 107,063 |
| 2024-03-18 | Day Christopher (VP, Marketing) | Sale | 416 | 49.27 | 20,496 |
| 2024-03-18 | Kohn Leslie (Chief Technology Officer) | Sale | 1,198 | 49.27 | 59,025 |
| 2024-03-08 | Young John Alexander (CFO) | Sale | 704 | 57.16 | 40,240 |
| 2024-03-08 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 509 | 57.16 | 29,094 |
| 2024-03-08 | Lee Chan W (Chief Operating Officer) | Sale | 642 | 57.16 | 36,696 |
| 2024-03-08 | Wang Feng-ming (CEO) | Sale | 1,297 | 57.16 | 74,136 |
| 2024-03-08 | Day Christopher (VP, Marketing) | Sale | 302 | 57.16 | 17,262 |
| 2024-03-08 | Kohn Leslie (Chief Technology Officer) | Sale | 708 | 57.16 | 40,469 |
| 2023-12-26 | Paisley Christopher B (Director) | Sale | 500 | 63.14 | 31,570 |
| 2023-12-18 | Schwarting Elizabeth M (Director) | Sale | 804 | 62.46 | 50,217 |
| 2023-12-06 | Richardson David Jeffrey (Director) | Sale | 8,056 | 58.75 | 473,257 |
| 2023-12-06 | Richardson David Jeffrey (Director) | Option Ex | 8,056 | 35.09 | 282,644 |
| 2023-09-18 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,048 | 57.30 | 60,050 |
| 2023-09-18 | Lee Chan W (Chief Operating Officer) | Sale | 1,484 | 57.30 | 85,033 |
| 2023-09-18 | Wang Feng-ming (CEO) | Sale | 3,019 | 57.30 | 172,988 |
| 2023-09-18 | Day Christopher (VP, Marketing) | Sale | 351 | 57.30 | 20,112 |
| 2023-09-18 | Kohn Leslie (Chief Technology Officer) | Sale | 1,671 | 57.30 | 95,748 |
| 2023-09-18 | White Brian C (CFO) | Sale | 3,274 | 57.30 | 187,600 |
| 2023-09-14 | Schwarting Elizabeth M (Director) | Sale | 777 | 58.57 | 45,508 |
| 2023-07-12 | Day Christopher (VP, Marketing) | Sale | 2,285 | 82.50 | 188,523 |
| 2023-07-07 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 4,251 | 81.81 | 347,795 |
| 2023-06-16 | Schwarting Elizabeth M (Director) | Sale | 1,324 | 85.76 | 113,544 |
| 2023-06-13 | Day Christopher (VP, Marketing) | Sale | 3,000 | 86.94 | 260,823 |
| 2023-06-08 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 4,165 | 82.62 | 344,108 |
| 2023-06-05 | Chen Yun-lung (VP, Business Development) | Sale | 8,984 | 76.80 | 689,971 |
| 2023-04-13 | Day Christopher (VP, Marketing) | Sale | 3,675 | 69.24 | 254,456 |
| 2023-04-06 | Verhalen Andrew W (Director) | Option Ex | 5,555 | 16.35 | 90,824 |
| 2023-03-17 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 4,402 | 76.85 | 338,293 |
| 2023-03-17 | Lee Chan W (Chief Operating Officer) | Sale | 9,430 | 76.85 | 724,695 |
| 2023-03-17 | Wang Feng-ming (CEO) | Sale | 16,644 | 76.85 | 1,279,091 |
| 2023-03-17 | Day Christopher (VP, Marketing) | Sale | 2,420 | 76.85 | 185,977 |
| 2023-03-17 | Kohn Leslie (Chief Technology Officer) | Sale | 11,881 | 76.85 | 913,054 |
| 2023-03-17 | White Brian C (CFO) | Sale | 10,554 | 76.85 | 811,074 |
| 2023-03-16 | Schwarting Elizabeth M (Director) | Sale | 234 | 75.77 | 17,730 |
| 2023-03-15 | Ju Chi-hong (Sr. Vice President, Systems) | Option Ex | 12,488 | .00 | 0 |
| 2023-03-15 | Lee Chan W (Chief Operating Officer) | Option Ex | 22,785 | .00 | 0 |
| 2023-03-15 | Schwarting Elizabeth M (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-15 | Hon Hsiao-wuen (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-15 | De Greef-safft Anne (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-15 | Chen Yun-lung (VP, Business Development) | Option Ex | 7,344 | .00 | 0 |
| 2023-03-15 | Wang Feng-ming (CEO) | Option Ex | 37,383 | .00 | 0 |
| 2023-03-15 | Day Christopher (VP, Marketing) | Option Ex | 6,925 | .00 | 0 |
| 2023-03-15 | Kohn Leslie (Chief Technology Officer) | Option Ex | 27,736 | .00 | 0 |
| 2023-03-15 | White Brian C (CFO) | Option Ex | 20,000 | .00 | 0 |
| 2023-03-15 | Richardson David Jeffrey (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-15 | Hu Chenming (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-15 | Verhalen Andrew W (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-15 | Paisley Christopher B (Director) | Option Ex | 779 | .00 | 0 |
| 2023-03-09 | White Brian C (CFO) | Sale | 1,224 | 82.25 | 100,674 |
| 2022-12-22 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 2,000 | 81.16 | 162,320 |
| 2022-12-19 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 764 | 80.46 | 61,472 |
| 2022-12-19 | Schwarting Elizabeth M (Director) | Sale | 234 | 81.42 | 19,051 |
| 2022-12-16 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,262 | 83.77 | 105,717 |
| 2022-12-16 | Ju Chi-hong (Sr. Vice President, Systems) | Option Ex | 2,485 | .00 | 0 |
| 2022-12-16 | Schwarting Elizabeth M (Director) | Option Ex | 779 | .00 | 0 |
| 2022-12-16 | Hon Hsiao-wuen (Director) | Option Ex | 779 | .00 | 0 |
| 2022-12-16 | Richardson David Jeffrey (Director) | Option Ex | 779 | .00 | 0 |
| 2022-12-16 | Hu Chenming (Director) | Option Ex | 779 | .00 | 0 |
| 2022-12-16 | Verhalen Andrew W (Director) | Option Ex | 779 | .00 | 0 |
| 2022-12-16 | Paisley Christopher B (Director) | Option Ex | 779 | .00 | 0 |
| 2022-12-14 | Day Christopher (VP, Marketing) | Sale | 6,999 | 90.82 | 635,661 |
| 2022-10-18 | Paisley Christopher B (Director) | Option Ex | 1,555 | 38.92 | 60,520 |
| 2022-09-26 | Kohn Leslie (Chief Technology Officer) | Sale | 6,179 | 58.95 | 364,258 |
| 2022-09-19 | Schwarting Elizabeth M (Director) | Sale | 113 | 64.24 | 7,259 |
| 2022-09-16 | Ju Chi-hong (Sr. Vice President, Systems) | Sale | 1,272 | 63.25 | 80,454 |
| 2022-09-16 | Ju Chi-hong (Sr. Vice President, Systems) | Option Ex | 2,485 | .00 | 0 |
| 2022-09-16 | Lee Chan W (Chief Operating Officer) | Sale | 2,072 | 63.25 | 131,054 |
| 2022-09-16 | Lee Chan W (Chief Operating Officer) | Option Ex | 4,049 | .00 | 0 |
| 2022-09-16 | Schwarting Elizabeth M (Director) | Option Ex | 377 | .00 | 0 |
| 2022-09-16 | Hon Hsiao-wuen (Director) | Option Ex | 377 | .00 | 0 |
| 2022-09-16 | De Greef-safft Anne (Director) | Option Ex | 355 | .00 | 0 |
| 2022-09-16 | Chen Yun-lung (VP, Business Development) | Option Ex | 1,385 | .00 | 0 |
| 2022-09-16 | Wang Feng-ming (CEO) | Sale | 3,736 | 63.25 | 236,302 |
| 2022-09-16 | Wang Feng-ming (CEO) | Option Ex | 7,301 | .00 | 0 |
| 2022-09-16 | Day Christopher (VP, Marketing) | Sale | 670 | 63.25 | 42,377 |
| 2022-09-16 | Day Christopher (VP, Marketing) | Option Ex | 1,305 | .00 | 0 |
| 2022-09-16 | Kohn Leslie (Chief Technology Officer) | Sale | 2,476 | 63.25 | 156,607 |
| 2022-09-16 | Kohn Leslie (Chief Technology Officer) | Option Ex | 4,837 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises of AMBA listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Ambarella Inc (symbol AMBA, CIK number 1280263) see the Securities and Exchange Commission (SEC) website.