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. (See page 1 of this report.) 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 | $1,549,086 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2017-09-18 | Kohn Leslie (Chief Technology Officer) | Sale | 6,467 | 46.50 | 300,715 |
| 2017-09-18 | Kohn Leslie (Chief Technology Officer) | Option Ex | 9,088 | .00 | 0 |
| 2017-09-18 | Richardson David Jeffrey (Director) | Option Ex | 1,143 | .00 | 0 |
| 2017-09-18 | Hu Chenming (Director) | Option Ex | 726 | .00 | 0 |
| 2017-09-18 | Verhalen Andrew W (Director) | Option Ex | 726 | .00 | 0 |
| 2017-09-18 | Paisley Christopher B (Director) | Option Ex | 726 | .00 | 0 |
| 2017-06-16 | Chen Yun-lung (VP, Business Development) | Option Ex | 4,636 | .00 | 0 |
| 2017-06-16 | Wang Feng-ming (CEO) | Sale | 11,628 | 48.77 | 567,097 |
| 2017-06-16 | Wang Feng-ming (CEO) | Option Ex | 15,429 | .00 | 0 |
| 2017-06-16 | Day Christopher (VP, Marketing) | Sale | 1,526 | 48.77 | 74,423 |
| 2017-06-16 | Day Christopher (VP, Marketing) | Option Ex | 2,932 | .00 | 0 |
| 2017-06-16 | Laplante George (Chief Financial Officer) | Sale | 4,836 | 48.77 | 235,851 |
| 2017-06-16 | Laplante George (Chief Financial Officer) | Option Ex | 7,573 | .00 | 0 |
| 2017-06-16 | Kohn Leslie (Chief Technology Officer) | Sale | 5,973 | 48.77 | 291,303 |
| 2017-06-16 | Kohn Leslie (Chief Technology Officer) | Option Ex | 9,088 | .00 | 0 |
| 2017-06-16 | Richardson David Jeffrey (Director) | Option Ex | 1,142 | .00 | 0 |
| 2017-06-16 | Hu Chenming (Director) | Option Ex | 726 | .00 | 0 |
| 2017-06-16 | Verhalen Andrew W (Director) | Option Ex | 726 | .00 | 0 |
| 2017-06-16 | Paisley Christopher B (Director) | Option Ex | 726 | .00 | 0 |
| 2017-06-01 | Paisley Christopher B (Director) | Sale | 1,000 | 58.72 | 58,720 |
| 2017-06-01 | Paisley Christopher B (Director) | Option Ex | 1,000 | 6.00 | 6,000 |
| 2017-03-31 | Day Christopher (VP, Marketing) | Sale | 2,109 | 55.50 | 117,049 |
| 2017-03-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 3,708 | .00 | 0 |
| 2017-03-16 | Wang Feng-ming (CEO) | Sale | 7,971 | 56.19 | 447,890 |
| 2017-03-16 | Wang Feng-ming (CEO) | Option Ex | 10,500 | .00 | 0 |
| 2017-03-16 | Day Christopher (VP, Marketing) | Sale | 1,193 | 56.19 | 67,034 |
| 2017-03-16 | Day Christopher (VP, Marketing) | Option Ex | 2,057 | .00 | 0 |
| 2017-03-16 | Laplante George (CFO) | Sale | 3,226 | 56.19 | 181,268 |
| 2017-03-16 | Laplante George (CFO) | Option Ex | 5,469 | .00 | 0 |
| 2017-03-16 | Kohn Leslie (CTO) | Sale | 3,662 | 56.19 | 205,767 |
| 2017-03-16 | Kohn Leslie (CTO) | Option Ex | 6,475 | .00 | 0 |
| 2017-03-16 | Richardson David Jeffrey (Director) | Option Ex | 1,143 | .00 | 0 |
| 2017-03-16 | Hu Chenming (Director) | Option Ex | 726 | .00 | 0 |
| 2017-03-16 | Verhalen Andrew W (Director) | Option Ex | 726 | .00 | 0 |
| 2017-03-16 | Paisley Christopher B (Director) | Option Ex | 726 | .00 | 0 |
| 2017-03-16 | Tan Lip Bu (Director) | Option Ex | 726 | .00 | 0 |
| 2017-03-13 | Chen Yun-lung (Vice President, Sales) | Sale | 7,898 | 55.16 | 435,653 |
| 2017-03-13 | Day Christopher (VP, Marketing) | Sale | 1,071 | 55.50 | 59,440 |
| 2017-03-13 | Day Christopher (VP, Marketing) | Option Ex | 1,071 | 9.99 | 10,699 |
| 2017-03-01 | Paisley Christopher B (Director) | Sale | 1,000 | 60.54 | 60,540 |
| 2017-03-01 | Paisley Christopher B (Director) | Option Ex | 1,000 | 6.00 | 6,000 |
| 2016-12-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 3,706 | .00 | 0 |
| 2016-12-16 | Wang Feng-ming (CEO) | Sale | 9,021 | 54.21 | 489,028 |
| 2016-12-16 | Wang Feng-ming (CEO) | Option Ex | 10,500 | .00 | 0 |
| 2016-12-16 | Day Christopher (VP, Marketing) | Sale | 1,656 | 54.21 | 89,771 |
| 2016-12-16 | Day Christopher (VP, Marketing) | Option Ex | 2,055 | .00 | 0 |
| 2016-12-16 | Laplante George (CFO) | Sale | 4,476 | 54.21 | 242,643 |
| 2016-12-16 | Laplante George (CFO) | Option Ex | 5,468 | .00 | 0 |
| 2016-12-16 | Kohn Leslie (CTO) | Sale | 5,083 | 54.21 | 275,549 |
| 2016-12-16 | Kohn Leslie (CTO) | Option Ex | 6,475 | .00 | 0 |
| 2016-12-16 | Richardson David Jeffrey (Director) | Option Ex | 1,143 | .00 | 0 |
| 2016-12-16 | Hu Chenming (Director) | Option Ex | 726 | .00 | 0 |
| 2016-12-16 | Verhalen Andrew W (Director) | Option Ex | 726 | .00 | 0 |
| 2016-12-16 | Paisley Christopher B (Director) | Option Ex | 726 | .00 | 0 |
| 2016-12-16 | Tan Lip Bu (Director) | Option Ex | 726 | .00 | 0 |
| 2016-09-30 | Chen Yun-lung (Vice President, Sales) | Sale | 4,197 | 74.19 | 311,375 |
| 2016-09-29 | Day Christopher (VP, Marketing) | Sale | 4,272 | 69.32 | 296,135 |
| 2016-09-29 | Day Christopher (VP, Marketing) | Option Ex | 2,063 | 24.45 | 50,450 |
| 2016-09-29 | Laplante George (CFO) | Sale | 10,000 | 70.00 | 700,000 |
| 2016-09-29 | Laplante George (CFO) | Option Ex | 10,000 | 8.82 | 88,200 |
| 2016-09-28 | Day Christopher (VP, Marketing) | Sale | 3,543 | 68.64 | 243,195 |
| 2016-09-28 | Day Christopher (VP, Marketing) | Option Ex | 3,000 | 24.45 | 73,365 |
| 2016-09-27 | Day Christopher (VP, Marketing) | Sale | 2,595 | 67.18 | 174,326 |
| 2016-09-27 | Day Christopher (VP, Marketing) | Option Ex | 926 | 8.82 | 8,167 |
| 2016-09-21 | Day Christopher (VP, Marketing) | Sale | 2,000 | 67.00 | 134,000 |
| 2016-09-21 | Day Christopher (VP, Marketing) | Option Ex | 2,000 | 9.99 | 19,980 |
| 2016-09-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 4,197 | .00 | 0 |
| 2016-09-16 | Wang Feng-ming (CEO) | Sale | 9,573 | 67.98 | 650,772 |
| 2016-09-16 | Wang Feng-ming (CEO) | Option Ex | 11,542 | .00 | 0 |
| 2016-09-16 | Day Christopher (VP, Marketing) | Sale | 1,405 | 67.98 | 95,511 |
| 2016-09-16 | Day Christopher (VP, Marketing) | Option Ex | 2,613 | .00 | 0 |
| 2016-09-16 | Laplante George (CFO) | Sale | 4,844 | 67.98 | 329,295 |
| 2016-09-16 | Laplante George (CFO) | Option Ex | 6,164 | .00 | 0 |
| 2016-09-16 | Kohn Leslie (CTO) | Sale | 5,489 | 67.98 | 373,142 |
| 2016-09-16 | Kohn Leslie (CTO) | Option Ex | 7,239 | .00 | 0 |
| 2016-09-16 | Richardson David Jeffrey (Director) | Option Ex | 1,569 | .00 | 0 |
| 2016-09-16 | Hu Chenming (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-09-16 | Verhalen Andrew W (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-09-16 | Paisley Christopher B (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-09-16 | Tan Lip Bu (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-09-07 | Laplante George (CFO) | Sale | 30,000 | 67.08 | 2,012,459 |
| 2016-09-07 | Laplante George (CFO) | Option Ex | 30,000 | 8.82 | 264,600 |
| 2016-09-07 | Paisley Christopher B (Director) | Sale | 1,000 | 69.13 | 69,130 |
| 2016-09-07 | Paisley Christopher B (Director) | Option Ex | 1,000 | 6.00 | 6,000 |
| 2016-06-30 | Day Christopher (VP, Marketing) | Sale | 1,173 | 50.85 | 59,647 |
| 2016-06-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 8,384 | .00 | 0 |
| 2016-06-16 | Wang Feng-ming (CEO) | Sale | 19,146 | 51.97 | 995,016 |
| 2016-06-16 | Wang Feng-ming (CEO) | Option Ex | 23,084 | .00 | 0 |
| 2016-06-16 | Day Christopher (VP, Marketing) | Sale | 2,810 | 51.97 | 146,034 |
| 2016-06-16 | Day Christopher (VP, Marketing) | Option Ex | 5,224 | .00 | 0 |
| 2016-06-16 | Laplante George (CFO) | Sale | 7,738 | 51.97 | 402,142 |
| 2016-06-16 | Laplante George (CFO) | Option Ex | 12,326 | .00 | 0 |
| 2016-06-16 | Kohn Leslie (CTO) | Sale | 9,350 | 51.97 | 485,918 |
| 2016-06-16 | Kohn Leslie (CTO) | Option Ex | 14,478 | .00 | 0 |
| 2016-06-16 | Richardson David Jeffrey (Director) | Option Ex | 3,140 | .00 | 0 |
| 2016-06-16 | Hu Chenming (Director) | Option Ex | 2,306 | .00 | 0 |
| 2016-06-16 | Verhalen Andrew W (Director) | Option Ex | 2,306 | .00 | 0 |
| 2016-06-16 | Paisley Christopher B (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-06-16 | Tan Lip Bu (Director) | Option Ex | 2,306 | .00 | 0 |
| 2016-06-15 | Paisley Christopher B (Director) | Sale | 1,000 | 51.96 | 51,960 |
| 2016-06-15 | Paisley Christopher B (Director) | Option Ex | 1,000 | 6.00 | 6,000 |
| 2016-03-29 | Day Christopher (VP, Marketing) | Sale | 1,812 | 43.50 | 78,822 |
| 2016-03-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 4,437 | .00 | 0 |
| 2016-03-16 | Wang Feng-ming (CEO) | Sale | 8,021 | 37.12 | 297,739 |
| 2016-03-16 | Wang Feng-ming (CEO) | Option Ex | 16,042 | .00 | 0 |
| 2016-03-16 | Day Christopher (VP, Marketing) | Sale | 1,475 | 37.12 | 54,751 |
| 2016-03-16 | Day Christopher (VP, Marketing) | Option Ex | 3,550 | .00 | 0 |
| 2016-03-16 | Laplante George (CFO) | Sale | 3,540 | 37.12 | 131,404 |
| 2016-03-16 | Laplante George (CFO) | Option Ex | 8,414 | .00 | 0 |
| 2016-03-16 | Kohn Leslie (CTO) | Sale | 4,253 | 37.12 | 157,871 |
| 2016-03-16 | Kohn Leslie (CTO) | Option Ex | 10,239 | .00 | 0 |
| 2016-03-16 | Richardson David Jeffrey (Director) | Option Ex | 1,570 | .00 | 0 |
| 2016-03-16 | Hu Chenming (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-03-16 | Verhalen Andrew W (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-03-16 | Paisley Christopher B (Director) | Option Ex | 1,153 | .00 | 0 |
| 2016-03-16 | Tan Lip Bu (Director) | Option Ex | 1,153 | .00 | 0 |
| 2015-12-28 | Tan Lip Bu (Director) | Sale | 2,472 | 58.21 | 143,902 |
| 2015-12-21 | Day Christopher (VP, Marketing) | Sale | 894 | 58.50 | 52,299 |
| 2015-12-17 | Day Christopher (VP, Marketing) | Sale | 776 | 58.50 | 45,396 |
| 2015-12-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 4,435 | .00 | 0 |
| 2015-12-16 | Wang Feng-ming (CEO) | Sale | 9,475 | 56.97 | 539,790 |
| 2015-12-16 | Wang Feng-ming (CEO) | Option Ex | 16,041 | .00 | 0 |
| 2015-12-16 | Day Christopher (VP, Marketing) | Sale | 2,041 | 56.97 | 116,275 |
| 2015-12-16 | Day Christopher (VP, Marketing) | Option Ex | 3,548 | .00 | 0 |
| 2015-12-16 | Laplante George (CFO) | Sale | 4,903 | 56.97 | 279,323 |
| 2015-12-16 | Laplante George (CFO) | Option Ex | 8,412 | .00 | 0 |
| 2015-12-16 | Kohn Leslie (CTO) | Sale | 5,890 | 56.97 | 335,553 |
| 2015-12-16 | Kohn Leslie (CTO) | Option Ex | 10,239 | .00 | 0 |
| 2015-12-16 | Richardson David Jeffrey (Director) | Option Ex | 1,568 | .00 | 0 |
| 2015-12-16 | Hu Chenming (Director) | Option Ex | 1,152 | .00 | 0 |
| 2015-12-16 | Verhalen Andrew W (Director) | Option Ex | 1,152 | .00 | 0 |
| 2015-12-16 | Paisley Christopher B (Director) | Option Ex | 1,152 | .00 | 0 |
| 2015-12-16 | Tan Lip Bu (Director) | Option Ex | 1,152 | .00 | 0 |
| 2015-12-15 | Paisley Christopher B (Director) | Sale | 1,000 | 56.89 | 56,887 |
| 2015-12-15 | Paisley Christopher B (Director) | Option Ex | 1,000 | 6.00 | 6,000 |
| 2015-12-10 | Day Christopher (VP, Marketing) | Sale | 261 | 59.25 | 15,464 |
| 2015-12-08 | Day Christopher (VP, Marketing) | Sale | 515 | 56.50 | 29,097 |
| 2015-10-08 | Hu Chenming (Director) | Option Ex | 16,109 | 13.17 | 212,155 |
| 2015-09-30 | Day Christopher (VP, Marketing) | Sale | 1,010 | 58.16 | 58,741 |
| 2015-09-17 | Chen Yun-lung (Vice President, Sales) | Sale | 5,739 | 73.30 | 420,668 |
| 2015-09-16 | Chen Yun-lung (Vice President, Sales) | Option Ex | 4,083 | .00 | 0 |
| 2015-09-16 | Wang Feng-ming (CEO) | Sale | 8,483 | 70.80 | 600,596 |
| 2015-09-16 | Wang Feng-ming (CEO) | Option Ex | 16,042 | .00 | 0 |
| 2015-09-16 | Day Christopher (VP, Marketing) | Sale | 1,880 | 70.80 | 133,104 |
| 2015-09-16 | Day Christopher (VP, Marketing) | Option Ex | 3,550 | .00 | 0 |
| 2015-09-16 | Laplante George (CFO) | Sale | 4,450 | 70.80 | 315,060 |
| 2015-09-16 | Laplante George (CFO) | Option Ex | 8,414 | .00 | 0 |
| 2015-09-16 | Kohn Leslie (CTO) | Sale | 5,415 | 70.80 | 383,382 |
| 2015-09-16 | Kohn Leslie (CTO) | Option Ex | 10,239 | .00 | 0 |
| 2015-09-16 | Richardson David Jeffrey (Director) | Option Ex | 765 | .00 | 0 |
| 2015-09-16 | Hu Chenming (Director) | Option Ex | 695 | .00 | 0 |
| 2015-09-16 | Verhalen Andrew W (Director) | Option Ex | 695 | .00 | 0 |
| 2015-09-16 | Paisley Christopher B (Director) | Option Ex | 695 | .00 | 0 |
| 2015-09-16 | Tan Lip Bu (Director) | Option Ex | 695 | .00 | 0 |
| 2015-09-14 | Chen Yun-lung (Vice President, Sales) | Sale | 8,321 | 68.80 | 572,484 |
| 2015-09-14 | Chen Yun-lung (Vice President, Sales) | Option Ex | 8,321 | 24.45 | 203,490 |
| 2015-09-04 | Chen Yun-lung (Vice President, Sales) | Sale | 6,520 | 70.25 | 458,030 |
| 2015-09-04 | Paisley Christopher B (Director) | Sale | 1,000 | 72.36 | 72,359 |
| 2015-09-04 | Paisley Christopher B (Director) | Option Ex | 1,000 | 6.00 | 6,000 |
| 2015-06-18 | Chen Yun-lung (VP of Business Development) | Sale | 1,646 | 125.04 | 205,815 |
| 2015-06-18 | Day Christopher (VP of Marketing) | Sale | 2,084 | 125.00 | 260,500 |
| 2015-06-17 | Day Christopher (VP of Marketing) | Sale | 2,458 | 121.00 | 297,418 |
| 2015-06-17 | Day Christopher (VP of Marketing) | Option Ex | 1,237 | 38.92 | 48,144 |
| 2015-06-16 | Chen Yun-lung (VP of Business Development) | Option Ex | 4,083 | .00 | 0 |
| 2015-06-16 | Wang Feng-ming (CEO) | Sale | 8,480 | 117.60 | 997,281 |
| 2015-06-16 | Wang Feng-ming (CEO) | Option Ex | 16,042 | .00 | 0 |
| 2015-06-16 | Day Christopher (VP of Marketing) | Sale | 1,763 | 117.60 | 207,335 |
| 2015-06-16 | Day Christopher (VP of Marketing) | Option Ex | 3,549 | .00 | 0 |
| 2015-06-16 | Laplante George (Chief Financial Officer) | Sale | 4,184 | 117.60 | 492,055 |
| 2015-06-16 | Laplante George (Chief Financial Officer) | Option Ex | 9,801 | .00 | 0 |
| 2015-06-16 | Kohn Leslie (CTO) | Sale | 5,413 | 117.60 | 636,590 |
| 2015-06-16 | Kohn Leslie (CTO) | Option Ex | 10,239 | .00 | 0 |
| 2015-06-16 | Richardson David Jeffrey (Director) | Option Ex | 764 | .00 | 0 |
| 2015-06-16 | Hu Chenming (Director) | Option Ex | 694 | .00 | 0 |
| 2015-06-16 | Verhalen Andrew W (Director) | Option Ex | 694 | .00 | 0 |
| 2015-06-16 | Paisley Christopher B (Director) | Option Ex | 694 | .00 | 0 |
| 2015-06-16 | Tan Lip Bu (Director) | Sale | 200 | 118.15 | 23,629 |
| 2015-06-16 | Tan Lip Bu (Director) | Option Ex | 694 | .00 | 0 |
| 2015-06-15 | Paisley Christopher B (Director) | Sale | 1,500 | 116.60 | 174,900 |
| 2015-06-15 | Paisley Christopher B (Director) | Option Ex | 1,500 | 6.00 | 9,000 |
| 2015-06-10 | Day Christopher (VP of Marketing) | Sale | 1,000 | 115.00 | 115,000 |
| 2015-06-10 | Day Christopher (VP of Marketing) | Option Ex | 1,000 | 9.99 | 9,990 |
| 2015-06-09 | Hu Chenming (Director) | Sale | 15,000 | 111.27 | 1,668,990 |
| 2015-06-09 | Hu Chenming (Director) | Option Ex | 15,000 | 9.99 | 149,850 |
| 2015-06-05 | Day Christopher (VP of Marketing) | Sale | 1,389 | 102.00 | 141,678 |
| 2015-06-05 | Day Christopher (VP of Marketing) | Option Ex | 1,389 | 8.82 | 12,250 |
| 2015-03-31 | Day Christopher (VP of Marketing) | Sale | 1,000 | 75.50 | 75,500 |
| 2015-03-31 | Day Christopher (VP of Marketing) | Option Ex | 1,000 | 9.99 | 9,990 |
| 2015-03-31 | Tan Lip Bu (Director) | Sale | 1,000 | 75.77 | 75,769 |
| 2015-03-30 | Day Christopher (VP of Marketing) | Sale | 1,000 | 74.00 | 74,000 |
| 2015-03-30 | Day Christopher (VP of Marketing) | Option Ex | 1,000 | 9.99 | 9,990 |
| 2015-03-27 | Day Christopher (VP of Marketing) | Sale | 1,389 | 70.90 | 98,480 |
| 2015-03-27 | Day Christopher (VP of Marketing) | Option Ex | 1,389 | 8.82 | 12,250 |
| 2015-03-26 | Day Christopher (VP of Marketing) | Sale | 2,632 | 69.00 | 181,608 |
| 2015-03-25 | Tan Lip Bu (Director) | Sale | 15,277 | 69.44 | 1,060,911 |
| 2015-03-25 | Tan Lip Bu (Director) | Option Ex | 15,277 | 21.36 | 326,362 |
| 2015-03-20 | Day Christopher (VP of Marketing) | Sale | 2,500 | 71.02 | 177,550 |
| 2015-03-20 | Kohn Leslie (CTO) | Sale | 40,000 | 72.00 | 2,880,000 |
| 2015-03-20 | Kohn Leslie (CTO) | Option Ex | 27,552 | 2.93 | 80,727 |
| 2015-03-19 | Day Christopher (VP of Marketing) | Sale | 809 | 68.75 | 55,618 |
| 2015-03-17 | Chen Yun-lung (VP of Business Development) | Option Ex | 4,083 | .00 | 0 |
| 2015-03-17 | Wang Feng-ming (CEO) | Sale | 7,172 | 68.22 | 489,273 |
| 2015-03-17 | Wang Feng-ming (CEO) | Option Ex | 16,041 | .00 | 0 |
| 2015-03-17 | Day Christopher (VP of Marketing) | Sale | 1,341 | 68.22 | 91,483 |
| 2015-03-17 | Day Christopher (VP of Marketing) | Option Ex | 3,550 | .00 | 0 |
| 2015-03-17 | Laplante George (Chief Financial Officer) | Sale | 3,176 | 68.22 | 216,666 |
| 2015-03-17 | Laplante George (Chief Financial Officer) | Option Ex | 8,414 | .00 | 0 |
| 2015-03-17 | Kohn Leslie (CTO) | Sale | 3,863 | 68.22 | 263,533 |
| 2015-03-17 | Kohn Leslie (CTO) | Option Ex | 10,239 | .00 | 0 |
| 2015-03-17 | Richardson David Jeffrey (Director) | Option Ex | 763 | .00 | 0 |
| 2015-03-17 | Hu Chenming (Director) | Option Ex | 695 | .00 | 0 |
| 2015-03-17 | Verhalen Andrew W (Director) | Option Ex | 695 | .00 | 0 |
| 2015-03-17 | Paisley Christopher B (Director) | Option Ex | 695 | .00 | 0 |
| 2015-03-17 | Tan Lip Bu (Director) | Option Ex | 695 | .00 | 0 |
| 2015-03-16 | Day Christopher (VP of Marketing) | Sale | 961 | 69.35 | 66,645 |
| 2015-03-16 | Kohn Leslie (CTO) | Sale | 40,000 | 69.53 | 2,781,040 |
| 2015-03-16 | Kohn Leslie (CTO) | Option Ex | 40,000 | 5.88 | 235,000 |
| 2015-03-16 | Paisley Christopher B (Director) | Sale | 1,500 | 68.85 | 103,274 |
| 2015-03-16 | Paisley Christopher B (Director) | Option Ex | 1,500 | 6.00 | 9,000 |
| 2015-03-06 | Chen Yun-lung (VP of Business Development) | Sale | 11,729 | 63.43 | 743,947 |
| 2015-03-06 | Wang Feng-ming (CEO) | Sale | 40,000 | 64.65 | 2,586,160 |
| 2015-03-06 | Wang Feng-ming (CEO) | Option Ex | 6,667 | 2.93 | 19,534 |
| 2015-01-07 | Kohn Leslie (CTO) | Sale | 38,000 | 58.00 | 2,204,000 |
| 2015-01-07 | Kohn Leslie (CTO) | Option Ex | 38,000 | 4.98 | 189,354 |
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.