Wang Feng-Ming Insider Transactions
AMBA Stock Insider Transactions
This summary is for reference only. We do not guarantee the accuracy and completeness of the information. Please do your own due diligence.Direct Holdings
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -4,928 | 788,929 | 79.43 | $391,431 | 2025-09-19 | Sale | Filing Url | ||
| -4,677 | 793,634 | 52.26 | $244,420 | 2025-06-20 | Sale | Filing Url | ||
| -3,194 | 798,311 | 55.02 | $175,734 | 2025-03-20 | Sale | Filing Url | ||
| -4,104 | 801,271 | 55.11 | $226,171 | 2025-03-07 | Sale | Filing Url | ||
| 50,144 | 805,375 | 0 | 0 | 2025-03-07 | Grant, award...etc | |||
| -4,296 | 755,231 | 75.41 | $323,961 | 2024-12-18 | Sale | Filing Url | ||
| -4,301 | 799,527 | 53.54 | $230,276 | 2024-09-19 | Sale | Filing Url | ||
| -36,000 | 803,574 | 0 | 56.0178 | $2,016,641 | 2024-09-06 | Sale | Filing Url | |
| 36,000 | 835,192 | 0 | 2024-09-06 | Derivatives Exercise | ||||
| -3,058 | 803,574 | 55.48 | $169,658 | 2024-06-20 | Sale | Filing Url | ||
| -2,173 | 806,632 | 49.27 | $107,064 | 2024-03-20 | Sale | Filing Url | ||
| -1,297 | 808,587 | 57.16 | $74,137 | 2024-03-11 | Sale | Filing Url | ||
| 3,396 | 809,884 | 0 | 2024-03-11 | Grant, award...etc | ||||
| 45,929 | 806,488 | 0 | 2024-03-04 | Grant, award...etc | Filing Url | |||
| -3,093 | 760,559 | 63.04 | $194,983 | 2023-12-21 | Sale | Filing Url | ||
| -3,019 | 763,652 | 57.3 | $172,989 | 2023-09-20 | Sale | Filing Url | ||
| -3,039 | 766,508 | 84.8 | $257,707 | 2023-06-20 | Sale | Filing Url | ||
| 51,395 | 769,547 | 0 | 2023-06-20 | Grant, award...etc | ||||
| -16,644 | 718,152 | 76.85 | $1,279,091 | 2023-03-17 | Sale | Filing Url | ||
| 37,383 | 734,796 | 2023-03-17 | Derivatives Exercise | |||||
| -3,703 | 697,222 | 83.77 | $310,200 | 2022-12-20 | Sale | Filing Url | ||
| 7,300 | 700,925 | 2022-12-20 | Derivatives Exercise | |||||
| -3,736 | 693,625 | 63.25 | $236,302 | 2022-09-20 | Sale | Filing Url | ||
| 7,301 | 697,361 | 2022-09-20 | Derivatives Exercise | |||||
| -3,937 | 689,918 | 66.26 | $260,866 | 2022-06-17 | Sale | Filing Url | ||
| 7,300 | 693,855 | 2022-06-17 | Derivatives Exercise | |||||
| -46,908 | 686,555 | 91.2 | $4,278,010 | 2022-03-18 | Sale | Filing Url | ||
| 94,379 | 733,463 | 2022-03-18 | Grant, award...etc | |||||
| -2,982 | 639,003 | 84.42 | $251,740 | 2022-03-14 | Sale | Filing Url | ||
| 8,463 | 641,985 | 0 | 2022-03-10 | Grant, award...etc | Filing Url | |||
| -4,753 | 633,522 | 188.91 | $897,889 | 2021-12-17 | Sale | Filing Url | ||
| 8,633 | 638,275 | 2021-12-17 | Derivatives Exercise | |||||
| -4,452 | 644,642 | 192.69 | $857,856 | 2021-12-07 | Sale | Filing Url | ||
| 8,632 | 649,094 | 2021-12-07 | Derivatives Exercise | |||||
| 44,444 | 650,354 | 2021-07-20 | Derivatives Exercise | Filing Url | ||||
| -6,184 | 605,910 | 101.39 | $626,996 | 2021-06-17 | Sale | Filing Url | ||
| 12,105 | 612,094 | 2021-06-17 | Derivatives Exercise | |||||
| -41,838 | 599,989 | 112 | $4,685,856 | 2021-03-18 | Sale | Filing Url | ||
| 83,554 | 641,827 | 2021-03-18 | Derivatives Exercise | |||||
| -1,675 | 558,035 | 109.7 | $183,748 | 2021-03-11 | Sale | Filing Url | ||
| 4,712 | 559,710 | 0 | 2021-03-11 | Grant, award...etc | ||||
| -5,429 | 554,998 | 90.25 | $489,967 | 2020-12-18 | Sale | Filing Url | ||
| 10,638 | 560,427 | 2020-12-18 | Derivatives Exercise | |||||
| 66,666 | 549,789 | 2020-10-09 | Derivatives Exercise | Filing Url | ||||
| -5,343 | 483,123 | 53.1761 | $284,120 | 2020-09-18 | Sale | Filing Url | ||
| 10,637 | 488,466 | 2020-09-18 | Derivatives Exercise | |||||
| -5,342 | 477,496 | 52.1312 | $278,485 | 2020-06-18 | Sale | Filing Url | ||
| 10,637 | 482,838 | 2020-06-18 | Derivatives Exercise | |||||
| -4,972 | 472,201 | 47.8124 | $237,723 | 2020-03-30 | Sale | Filing Url | ||
| 9,565 | 477,173 | 0 | 2020-03-30 | Grant, award...etc | ||||
| -18,228 | 467,608 | 38.988 | $710,673 | 2020-03-19 | Sale | Filing Url | ||
| 36,623 | 485,836 | 2020-03-19 | Derivatives Exercise | |||||
| -3,440 | 449,020 | 56.3142 | $193,721 | 2019-12-19 | Sale | Filing Url | ||
| 7,045 | 452,460 | 2019-12-19 | Derivatives Exercise | |||||
| -6,859 | 455,415 | 64.1424 | $439,953 | 2019-09-18 | Sale | Filing Url | ||
| 7,045 | 462,274 | 2019-09-18 | Derivatives Exercise | |||||
| -60,000 | 454,944 | 59.1848 | $3,551,088 | 2019-09-06 | Sale | Filing Url | ||
| 99,777 | 514,944 | 2019-09-06 | Derivatives Exercise | |||||
| 11,333 | 415,167 | 2019-08-13 | Derivatives Exercise | Filing Url | ||||
| 8,402 | 398,986 | 2019-06-19 | Derivatives Exercise | Filing Url | ||||
| -5,535 | 403,834 | 43.0563 | $238,317 | 2019-06-19 | Sale | |||
| 7,045 | 409,369 | 2019-06-19 | Grant, award...etc | |||||
| -5,409 | 402,342 | 43.4844 | $235,207 | 2019-03-20 | Sale | Filing Url | ||
| 8,402 | 407,751 | 2019-03-20 | Derivatives Exercise | |||||
| -7,627 | 399,004 | 38 | $289,826 | 2018-12-20 | Sale | Filing Url | ||
| 8,420 | 406,631 | 2018-12-20 | Derivatives Exercise | |||||
| -10,727 | 398,211 | 35.56 | $381,452 | 2018-09-20 | Sale | Filing Url | ||
| 13,651 | 408,938 | 2018-09-20 | Derivatives Exercise | |||||
| -8,412 | 395,053 | 43.27 | $363,987 | 2018-06-20 | Sale | Filing Url | ||
| 10,180 | 403,465 | 2018-06-20 | Derivatives Exercise | |||||
| 104,444 | 393,285 | 2018-06-07 | Derivatives Exercise | Filing Url | ||||
| -6,024 | 288,841 | 53.07 | $319,694 | 2018-03-20 | Sale | Filing Url | ||
| 10,180 | 294,865 | 2018-03-20 | Derivatives Exercise | |||||
| -8,851 | 284,416 | 57.69 | $510,614 | 2017-12-20 | Sale | Filing Url | ||
| 10,179 | 293,267 | 2017-12-20 | Derivatives Exercise | |||||
| -11,629 | 283,088 | 46.5 | $540,749 | 2017-09-20 | Sale | Filing Url | ||
| 15,430 | 294,717 | 2017-09-20 | Derivatives Exercise | |||||
| -11,628 | 279,063 | 48.77 | $567,098 | 2017-06-20 | Sale | Filing Url | ||
| 15,429 | 290,691 | 2017-06-20 | Derivatives Exercise | |||||
| -7,971 | 275,262 | 56.19 | $447,890 | 2017-03-17 | Sale | Filing Url | ||
| 10,500 | 283,233 | 2017-03-17 | Derivatives Exercise | |||||
| -9,021 | 272,552 | 54.21 | $489,028 | 2016-12-16 | Sale | Filing Url | ||
| 10,500 | 281,573 | 2016-12-16 | Derivatives Exercise | |||||
| -9,573 | 271,073 | 67.98 | $650,773 | 2016-09-20 | Sale | Filing Url | ||
| 11,542 | 280,646 | 2016-09-20 | Derivatives Exercise | |||||
| -9,573 | 268,773 | 51.97 | $497,509 | 2016-06-20 | Sale | Filing Url | ||
| 11,542 | 278,346 | 2016-06-20 | Derivatives Exercise | |||||
| -8,021 | 266,804 | 37.12 | $297,740 | 2016-03-18 | Sale | Filing Url | ||
| 16,042 | 274,825 | 2016-03-18 | Derivatives Exercise | |||||
| 65,583 | 258,608 | 0 | 2016-03-09 | Grant, award...etc | Filing Url | |||
| -9,475 | 193,025 | 56.97 | $539,791 | 2015-12-18 | Sale | Filing Url | ||
| 16,041 | 202,500 | 2015-12-18 | Derivatives Exercise | |||||
| 30,000 | 186,459 | 0 | 2015-10-13 | Grant, award...etc | Filing Url | |||
| -8,483 | 156,459 | 70.8 | $600,596 | 2015-09-17 | Sale | Filing Url | ||
| 16,042 | 164,942 | 2015-09-17 | Derivatives Exercise | |||||
| -8,480 | 148,720 | 117.6043 | $997,284 | 2015-06-18 | Sale | Filing Url | ||
| 16,042 | 157,200 | 2015-06-18 | Derivatives Exercise | |||||
| -7,172 | 141,158 | 68.22 | $489,274 | 2015-03-19 | Sale | Filing Url | ||
| 16,041 | 148,330 | 2015-03-19 | Derivatives Exercise | |||||
| 6,667 | 131,926 | 2015-03-10 | Derivatives Exercise | Filing Url | ||||
| -40,000 | 125,259 | 0 | 63.941 | $2,557,640 | 2015-03-10 | Sale | ||
| -8,484 | 177,259 | 46.15 | $391,537 | 2014-12-18 | Sale | Filing Url | ||
| 16,042 | 185,743 | 2014-12-18 | Derivatives Exercise | |||||
| -50,000 | 232,701 | 0 | 47.1745 | $2,358,725 | 2014-12-11 | Sale | Filing Url | |
| -30,000 | 282,701 | 0 | 42.5293 | $1,275,879 | 2014-10-06 | Sale | Filing Url | |
| -15,000 | 312,701 | 42 | $630,000 | 2014-09-24 | Sale | Filing Url | ||
| -4,548 | 327,701 | 33.66 | $153,086 | 2014-09-17 | Sale | Filing Url | ||
| 5,542 | 332,249 | 2014-09-17 | Derivatives Exercise | |||||
| -15,000 | 326,343 | 0 | 38.7037 | $580,556 | 2014-09-10 | Sale | Filing Url | |
| -4,099 | 341,343 | 26.55 | $108,828 | 2014-06-18 | Sale | Filing Url | ||
| 5,542 | 345,442 | 2014-06-18 | Derivatives Exercise | |||||
| -2,437 | 339,900 | 28 | $68,236 | 2014-03-20 | Sale | Filing Url | ||
| 1,041 | 341,511 | 2014-03-20 | Derivatives Exercise | |||||
| -44,000 | 380,470 | 0 | 30.3491 | $1,335,360 | 2014-02-04 | Sale | Filing Url | |
| -76,000 | 424,470 | 0 | 32.9896 | $2,507,210 | 2014-01-06 | Sale | Filing Url | |
| -72,000 | 500,470 | 30 | $2,160,000 | 2013-12-30 | Sale | Filing Url | ||
| -2,405 | 572,470 | 24.43 | $58,754 | 2013-12-19 | Sale | Filing Url | ||
| 1,042 | 574,875 | 2013-12-19 | Derivatives Exercise | |||||
| -52,000 | 573,833 | 0 | 23.6752 | $1,231,110 | 2013-12-03 | Sale | Filing Url | |
| -52,000 | 625,833 | 0 | 20.1733 | $1,049,012 | 2013-11-05 | Sale | Filing Url | |
| -32,000 | 677,833 | 21.0065 | $672,208 | 2013-10-17 | Sale | Filing Url | ||
| -36,000 | 709,833 | 0 | 19.3076 | $695,074 | 2013-10-03 | Sale | Filing Url | |
| -396 | 745,833 | 17.8 | $7,049 | 2013-09-18 | Sale | Filing Url | ||
| 1,042 | 746,229 | 2013-09-18 | Derivatives Exercise | |||||
| -16,000 | 745,187 | 18.0038 | $288,061 | 2013-09-12 | Sale | Filing Url | ||
| -20,000 | 761,187 | 15.066 | $301,320 | 2013-09-06 | Sale | Filing Url | ||
| 84,000 | 781,187 | 0 | 2013-08-29 | Grant, award...etc | Filing Url | |||
| -20,000 | 697,187 | 0 | 16.0834 | $321,668 | 2013-08-02 | Sale | Filing Url | |
| -40,000 | 717,187 | 0 | 18.0207 | $720,828 | 2013-07-16 | Sale | Filing Url | |
| -100,000 | 757,187 | 17.1106 | $1,711,060 | 2013-07-03 | Sale | Filing Url | ||
| -381 | 857,187 | 18.29 | $6,968 | 2013-06-19 | Sale | Filing Url | ||
| 1,041 | 857,568 | 2013-06-19 | Derivatives Exercise | |||||
| -40,000 | 856,527 | 18.0804 | $723,216 | 2013-06-13 | Sale | Filing Url | ||
| -100,000 | 896,527 | 16.1829 | $1,618,290 | 2013-06-11 | Sale | Filing Url | ||
| 2,083 | 996,527 | 2013-04-10 | Derivatives Exercise | Filing Url | ||||
| 1,244,444 | 1,244,444 | 2012-10-09 | Initial | Filing Url |
Acorn Hall Irreversible Trust for the benefit of the reporting person's child
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -1,833 | 0 | 28.0956 | $51,499 | 2014-08-04 | Sale | Filing Url | ||
| -9,500 | 1,833 | 0 | 31.6283 | $300,469 | 2014-07-02 | Sale | Filing Url | |
| -9,000 | 11,333 | 30 | $270,000 | 2014-06-23 | Sale | Filing Url | ||
| -6,500 | 26,833 | 24.9576 | $162,224 | 2014-05-02 | Sale | Filing Url | ||
| -9,500 | 39,833 | 0 | 32.3333 | $307,166 | 2014-03-04 | Sale | Filing Url | |
| -9,500 | 49,333 | 0 | 30.3465 | $288,292 | 2014-02-04 | Sale | Filing Url | |
| -9,500 | 58,833 | 0 | 32.9927 | $313,431 | 2014-01-06 | Sale | Filing Url | |
| -9,000 | 68,333 | 30 | $270,000 | 2013-12-30 | Sale | Filing Url | ||
| -6,500 | 77,333 | 0 | 23.6781 | $153,908 | 2013-12-03 | Sale | Filing Url | |
| -6,500 | 83,833 | 0 | 20.1849 | $131,202 | 2013-11-05 | Sale | Filing Url | |
| -3,000 | 90,333 | 21.0057 | $63,017 | 2013-10-17 | Sale | Filing Url | ||
| -5,000 | 93,333 | 0 | 19.3206 | $96,603 | 2013-10-03 | Sale | Filing Url | |
| -2,500 | 98,333 | 18 | $45,000 | 2013-09-12 | Sale | Filing Url | ||
| -2,500 | 100,833 | 15.0052 | $37,513 | 2013-09-06 | Sale | Filing Url | ||
| -2,000 | 103,333 | 0 | 16.0647 | $32,129 | 2013-08-02 | Sale | Filing Url | |
| -4,000 | 105,333 | 18.0121 | $72,048 | 2013-07-16 | Sale | Filing Url | ||
| -10,000 | 109,333 | 17.1091 | $171,091 | 2013-07-03 | Sale | Filing Url | ||
| -4,000 | 119,333 | 18 | $72,000 | 2013-06-13 | Sale | Filing Url | ||
| -10,000 | 123,333 | 16.1442 | $161,442 | 2013-06-11 | Sale | Filing Url |
by Tutu's Trust
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -14,000 | 1,001 | 0 | 25.0961 | $351,345 | 2014-06-04 | Sale | Filing Url | |
| -14,000 | 28,000 | 26.7048 | $373,867 | 2014-04-02 | Sale | Filing Url |
by Acorn Hall Trust
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -6,500 | 20,333 | 0 | 25.1016 | $163,160 | 2014-06-04 | Sale | Filing Url | |
| -6,500 | 33,333 | 26.7099 | $173,614 | 2014-04-02 | Sale | Filing Url |
Tutu's Irrevocable Trust for the benefit of the reporting person's child
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -14,000 | 14,000 | 24.9618 | $349,465 | 2014-05-02 | Sale | Filing Url | ||
| -20,000 | 42,000 | 0 | 32.3202 | $646,404 | 2014-03-04 | Sale | Filing Url | |
| -20,000 | 62,000 | 0 | 30.3598 | $607,196 | 2014-02-04 | Sale | Filing Url | |
| -20,000 | 82,000 | 0 | 32.9675 | $659,350 | 2014-01-06 | Sale | Filing Url | |
| -18,000 | 102,000 | 30 | $540,000 | 2013-12-30 | Sale | Filing Url | ||
| -14,000 | 120,000 | 0 | 23.6777 | $331,488 | 2013-12-03 | Sale | Filing Url | |
| -14,000 | 134,000 | 0 | 20.1723 | $282,412 | 2013-11-05 | Sale | Filing Url | |
| -12,000 | 148,000 | 21.0097 | $252,116 | 2013-10-17 | Sale | Filing Url | ||
| -10,000 | 160,000 | 0 | 19.3117 | $193,117 | 2013-10-03 | Sale | Filing Url | |
| -10,000 | 170,000 | 18 | $180,000 | 2013-09-12 | Sale | Filing Url | ||
| -5,000 | 180,000 | 15.0244 | $75,122 | 2013-09-06 | Sale | Filing Url | ||
| -5,000 | 185,000 | 0 | 16.0775 | $80,388 | 2013-08-02 | Sale | Filing Url | |
| -10,000 | 190,000 | 18.0261 | $180,261 | 2013-07-16 | Sale | Filing Url | ||
| -20,000 | 200,000 | 17.11 | $342,200 | 2013-07-03 | Sale | Filing Url | ||
| -10,000 | 220,000 | 18.005 | $180,050 | 2013-06-13 | Sale | Filing Url | ||
| -20,000 | 230,000 | 16.1531 | $323,062 | 2013-06-11 | Sale | Filing Url |