SEC CIK 1558686

Wang Feng-Ming

Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
AMBAview stock →767,7592026-09-17

Position History — AMBA

Reported shares owned immediately after each Form 4 transaction, over time.

0414,815829,6291,244,4442012-102013-102014-032015-092019-092023-032026-052026-09

Recent Filings — AMBA

DateActivitySharesPriceOwned After
2026-09-17Open-market sale6,086$64.83767,759
2026-07-01Open-market sale16,250$90.08773,607
2026-06-17Gift10,000$0.00789,857
2026-06-17Open-market sale6,204$67.87799,857
2026-05-26Open-market sale9,150$92.05806,061
2026-05-26Open-market sale6,065$91.23815,211
2026-05-26Open-market sale17,285$90.38821,276
2026-03-19Open-market sale8,083$54.14838,561
2026-03-18Grant / award15,686$0.00846,644
2026-03-17Option exercise (derivative)27,598$0.000
2026-03-17Open-market sale18,976$52.77830,958
2026-03-17Option exercise27,598—849,934
2026-03-02Grant / award (derivative)53,203$0.0053,203
2026-03-02Option exercise (derivative)50,000$0.000
2026-03-02Grant / award53,203$0.00822,182
2026-03-02Open-market sale12,040$61.42768,979
2026-03-02Open-market sale32,460$60.91781,019
2026-03-02Open-market sale2,600$59.53813,479
2026-03-02Open-market sale1,900$58.77816,079
2026-03-02Open-market sale1,000$56.83817,979
2026-03-02Option exercise50,000$41.36818,979
2025-12-19Gift15,000$0.00768,979
2025-12-17Open-market sale4,950$71.82783,979
2025-09-17Open-market sale4,928$79.43788,929
2025-06-17Open-market sale4,677$52.26793,634
2025-03-18Open-market sale3,194$55.02798,311
2025-03-06Open-market sale4,104$55.11801,271
2025-03-05Grant / award11,024$0.00805,375
2025-02-28Grant / award (derivative)39,120$0.0039,120
2025-02-28Grant / award39,120$0.00794,351
2024-12-16Open-market sale4,296$75.41755,231
2024-10-07Gift40,000$0.00759,527
2024-09-17Open-market sale4,301$53.54799,527
2024-09-05Option exercise (derivative)31,618$0.000
2024-09-05Option exercise31,618$38.92835,192
2024-09-05Open-market sale31,618$54.71803,574
2024-09-04Option exercise (derivative)4,382$0.0031,618
2024-09-04Option exercise4,382$38.92807,956
2024-09-04Open-market sale4,382$56.02803,574
2024-06-18Open-market sale3,058$55.48803,574
2024-03-18Open-market sale2,173$49.27806,632
2024-03-08Open-market sale1,297$57.16808,587
2024-03-07Grant / award3,396$0.00809,884
2024-02-29Grant / award (derivative)45,929$0.0045,929
2024-02-29Grant / award45,929$0.00806,488
2023-12-19Open-market sale3,093$63.04760,559
2023-09-18Open-market sale3,019$57.30763,652
2023-06-20Open-market sale3,039$84.80766,508
2023-06-15Grant / award51,395$0.00769,547
2023-04-03Grant / award (derivative)27,598$0.0027,598
2023-03-17Open-market sale16,644$76.85718,152
2023-03-15Option exercise (derivative)2,241$0.0017,927
2023-03-15Option exercise (derivative)1,468$0.005,870
2023-03-15Option exercise (derivative)3,593$0.000
2023-03-15Option exercise (derivative)43,109$0.000
2023-03-15Option exercise37,383—734,796
2023-03-02Grant / award (derivative)27,598$0.0027,598
2022-12-16Option exercise (derivative)2,241$0.0020,168
2022-12-16Option exercise (derivative)3,592$0.003,593
2022-12-16Option exercise (derivative)1,467$0.007,338
2022-12-16Option exercise7,300—700,925
2022-12-16Open-market sale3,703$83.77697,222
2022-09-16Option exercise (derivative)2,241$0.0022,409
2022-09-16Option exercise (derivative)1,467$0.008,805
2022-09-16Option exercise (derivative)3,593$0.007,185
2022-09-16Open-market sale3,736$63.25693,625
2022-09-16Option exercise7,301—697,361
2022-06-16Option exercise (derivative)2,240$0.0024,650
2022-06-16Option exercise (derivative)1,468$0.0010,272
2022-06-16Option exercise (derivative)3,592$0.0010,778
2022-06-16Option exercise7,300—693,855
2022-06-16Open-market sale3,937$66.26689,918
2022-04-17Grant / award (derivative)26,890$0.0026,890
2022-04-17Grant / award (derivative)26,890$0.0026,890
2022-03-16Option exercise (derivative)3,573$0.000
2022-03-16Option exercise (derivative)42,873$0.000
2022-03-16Option exercise (derivative)3,593$0.0014,370
2022-03-16Option exercise (derivative)1,467$0.0011,740
2022-03-16Open-market sale46,908$91.20686,555
2022-03-16Grant / award94,379—733,463
2022-03-14Open-market sale2,982$84.42639,003
2022-03-08Grant / award8,463$0.00641,985
2021-12-16Option exercise (derivative)3,592$0.0017,963
2021-12-16Option exercise (derivative)1,468$0.0013,207
2021-12-16Option exercise (derivative)3,573$0.003,573
2021-12-16Option exercise8,633—638,275
2021-12-16Open-market sale4,753$188.91633,522
2021-12-13Gift15,000$0.00629,642
2021-12-03Open-market sale4,452$192.69644,642
2021-12-03Option exercise8,632—649,094
2021-11-01Gift10,000$0.00640,462
2021-09-16Option exercise (derivative)1,467$0.0014,675
2021-09-16Option exercise (derivative)3,592$0.0021,555
2021-09-16Option exercise (derivative)3,573$0.007,146
2021-07-19Option exercise (derivative)44,444$0.000
2021-07-19Option exercise44,444$8.82650,354
2021-06-16Option exercise (derivative)3,572$0.0010,719
2021-06-16Option exercise (derivative)3,593$0.0025,147
2021-06-16Option exercise (derivative)1,467$0.0016,142
2021-06-16Option exercise (derivative)3,473$0.000
2021-06-16Open-market sale6,184$101.39605,910
2021-06-16Option exercise12,105—612,094
2021-03-16Option exercise (derivative)83,334$0.000
2021-03-16Option exercise (derivative)3,472$0.003,473
2021-03-16Option exercise (derivative)3,573$0.0014,291
2021-03-16Option exercise (derivative)3,592$0.0028,740
2021-03-16Option exercise83,554—641,827
2021-03-16Open-market sale41,838$112.00599,989
2021-03-09Open-market sale1,675$109.70558,035
2021-03-09Grant / award4,712$0.00559,710
2021-03-04Grant / award (derivative)17,609$0.0017,609
2021-03-04Grant / award (derivative)17,609$0.0017,609
2020-12-16Option exercise (derivative)3,472$0.006,945
2020-12-16Option exercise (derivative)3,593$0.0032,332
2020-12-16Option exercise (derivative)3,573$0.0017,864
2020-12-16Open-market sale5,429$90.25554,998
2020-12-16Option exercise10,638—560,427
2020-10-08Option exercise (derivative)66,666$0.000
2020-10-08Option exercise66,666$8.82549,789
2020-09-16Option exercise (derivative)3,592$0.0035,925
2020-09-16Option exercise (derivative)3,573$0.0021,437
2020-09-16Option exercise (derivative)3,472$0.0010,417
2020-09-16Option exercise10,637—488,466
2020-09-16Open-market sale5,343$53.18483,123
2020-06-16Option exercise (derivative)3,572$0.0025,010
2020-06-16Option exercise (derivative)3,473$0.0013,889
2020-06-16Option exercise (derivative)3,592$0.0039,517
2020-06-16Open-market sale5,342$52.13477,496
2020-06-16Option exercise10,637—482,838
2020-03-27Open-market sale4,972$47.81472,201
2020-03-27Grant / award9,565$0.00477,173
2020-03-25Grant / award (derivative)43,109$0.0043,109
2020-03-25Grant / award (derivative)43,109$0.0043,109
2020-03-17Option exercise (derivative)39,437$0.000
2020-03-17Option exercise (derivative)3,573$0.0028,582
2020-03-17Option exercise (derivative)3,472$0.0017,362
2020-03-17Option exercise36,623—485,836
2020-03-17Open-market sale18,228$38.99467,608
2019-12-17Option exercise (derivative)3,573$0.0032,155
2019-12-17Option exercise (derivative)3,472$0.0020,834
2019-12-17Open-market sale3,440$56.31449,020
2019-12-17Option exercise7,045—452,460
2019-10-16Gift10,000$0.00445,415
2019-09-17Option exercise (derivative)3,573$0.0035,728
2019-09-17Option exercise (derivative)3,472$0.0024,306
2019-09-17Option exercise7,045—462,274
2019-09-17Open-market sale6,859$64.14455,415
2019-09-04Option exercise (derivative)99,777$0.000
2019-09-04Option exercise99,777$6.62514,944
2019-09-04Open-market sale60,000$59.18454,944
2019-08-09Option exercise (derivative)11,333$0.000
2019-08-09Option exercise11,333$6.62415,167
2019-06-18Option exercise (derivative)3,572$0.0039,301
2019-06-18Option exercise (derivative)3,473$0.0027,778
2019-06-18Open-market sale5,535$43.06403,834
2019-06-18Grant / award7,045—409,369
2019-03-19Option exercise (derivative)4,930$0.000
2019-03-19Option exercise (derivative)3,472$0.0031,251
2019-03-19Open-market sale5,409$43.48402,342
2019-03-19Option exercise8,402—407,751
2019-03-07Grant / award (derivative)42,873$0.0042,873
2019-03-07Grant / award (derivative)42,873$0.0042,873
2019-03-04Grant / award (derivative)83,334$0.0083,334
2018-12-18Option exercise (derivative)4,930$0.004,930
2018-12-18Option exercise (derivative)3,472$0.0034,723
2018-12-18Open-market sale7,627$38.00399,004
2018-12-18Option exercise8,420—406,631
2018-12-18Option exercise8,402—398,986
2018-09-19Open-market sale10,727$35.56398,211
2018-09-18Option exercise (derivative)3,472$0.0038,195
2018-09-18Option exercise (derivative)5,250$0.000
2018-09-18Option exercise (derivative)4,929$0.009,860
2018-09-18Option exercise13,651—408,938
2018-06-18Option exercise (derivative)5,250$0.005,250
2018-06-18Option exercise (derivative)4,930$0.0014,789
2018-06-18Option exercise10,180—403,465
2018-06-18Open-market sale8,412$43.27395,053
2018-06-07Grant / award (derivative)41,667$0.0041,667
2018-06-06Option exercise (derivative)104,444$0.000
2018-06-06Option exercise104,444$2.93393,285
2018-03-16Option exercise (derivative)4,930$0.0019,719
2018-03-16Option exercise (derivative)5,250$0.0010,500
2018-03-16Option exercise10,180—294,865
2018-03-16Open-market sale6,024$53.07288,841
2018-02-26Grant / award (derivative)39,437$0.0039,437
2017-12-18Option exercise (derivative)5,250$0.0015,750
2017-12-18Option exercise (derivative)4,929$0.0024,649
2017-12-18Option exercise10,179—293,267
2017-12-18Open-market sale8,851$57.69284,416
2017-09-18Option exercise (derivative)4,930$0.0029,578
2017-09-18Option exercise (derivative)5,250$0.000
2017-09-18Option exercise (derivative)5,250$0.0021,000
2017-09-18Option exercise15,430—294,717
2017-09-18Open-market sale11,629$46.50283,088
2017-06-16Option exercise (derivative)5,250$0.0026,250
2017-06-16Option exercise (derivative)5,250$0.005,250
2017-06-16Option exercise (derivative)4,929$0.0034,508
2017-06-16Open-market sale11,628$48.77279,063
2017-06-16Option exercise15,429—290,691
2017-03-28Grant / award (derivative)39,437$0.0039,437
2017-03-16Option exercise (derivative)5,250$0.0010,500
2017-03-16Option exercise (derivative)5,250$0.0031,500
2017-03-16Open-market sale7,971$56.19275,262
2017-03-16Option exercise10,500—283,233
2016-12-16Option exercise (derivative)5,250$0.0015,750
2016-12-16Option exercise (derivative)5,250$0.0036,750
2016-12-16Option exercise10,500—281,573
2016-12-16Open-market sale9,021$54.21272,552
2016-09-16Option exercise (derivative)5,250$0.0042,000
2016-09-16Option exercise (derivative)1,042$0.000
2016-09-16Option exercise (derivative)5,250$0.0021,000
2016-09-16Option exercise11,542—280,646
2016-09-16Open-market sale9,573$67.98271,073
2016-06-16Option exercise (derivative)5,250$0.0047,250
2016-06-16Option exercise (derivative)1,042$0.001,042
2016-06-16Option exercise (derivative)5,250$0.0026,250
2016-06-16Option exercise11,542—278,346
2016-06-16Open-market sale9,573$51.97268,773
2016-03-16Option exercise (derivative)1,042$0.002,084
2016-03-16Option exercise (derivative)5,250$0.0052,500
2016-03-16Option exercise (derivative)5,250$0.0031,500
2016-03-16Option exercise (derivative)4,500$0.000
2016-03-16Option exercise16,042—274,825
2016-03-16Open-market sale8,021$37.12266,804
2016-03-07Grant / award (derivative)50,000$0.0050,000
2016-03-07Grant / award65,583$0.00258,608
2015-12-16Option exercise (derivative)4,500$0.004,500
2015-12-16Option exercise (derivative)5,250$0.0036,750
2015-12-16Option exercise (derivative)5,250$0.0057,750
2015-12-16Option exercise (derivative)1,041$0.003,126
2015-12-16Option exercise16,041—202,500
2015-12-16Open-market sale9,475$56.97193,025
2015-10-08Grant / award30,000$0.00186,459
2015-09-16Option exercise (derivative)5,250$0.0063,000
2015-09-16Option exercise (derivative)5,250$0.0042,000
2015-09-16Option exercise (derivative)4,500$0.009,000
2015-09-16Option exercise (derivative)1,042$0.004,167
2015-09-16Option exercise16,042—164,942
2015-09-16Open-market sale8,483$70.80156,459
2015-06-16Option exercise (derivative)1,042$0.005,209
2015-06-16Option exercise (derivative)4,500$0.0013,500
2015-06-16Option exercise (derivative)5,250$0.0047,250
2015-06-16Option exercise (derivative)5,250$0.0068,250
2015-06-16Option exercise16,042—157,200
2015-06-16Open-market sale8,480$117.60148,720
2015-03-17Option exercise (derivative)5,250$0.0052,500
2015-03-17Option exercise (derivative)5,250$0.0073,500
2015-03-17Option exercise (derivative)4,500$0.0018,000
2015-03-17Option exercise (derivative)1,041$0.006,251
2015-03-17Option exercise16,041$0.00148,330
2015-03-17Open-market sale7,172$68.22141,158
2015-03-06Option exercise (derivative)6,667$0.00104,444
2015-03-06Open-market sale897$65.32125,259
2015-03-06Open-market sale28,552$64.70126,156
2015-03-06Open-market sale10,551$63.94154,708
2015-03-06Option exercise6,667$2.93131,926
2014-12-16Option exercise (derivative)1,042$0.007,292
2014-12-16Option exercise (derivative)4,500$0.0022,500
2014-12-16Option exercise (derivative)5,250$0.0078,750
2014-12-16Option exercise (derivative)5,250$0.0057,750
2014-12-16Option exercise16,042—185,743
2014-12-16Open-market sale8,484$46.15177,259
2014-12-09Open-market sale3,322$51.24252,978
2014-12-09Open-market sale2,800$47.17279,901
2014-12-09Open-market sale20,277$52.33232,701
2014-12-09Open-market sale2,443$48.33277,458
2014-12-09Open-market sale5,015$50.13256,300
2014-12-09Open-market sale16,143$49.43261,315
2014-10-03Open-market sale2,280$43.32282,701
2014-10-03Open-market sale27,720$42.53284,981
2014-09-23Open-market sale15,000$42.00312,701
2014-09-16Option exercise (derivative)4,500$0.0027,000
2014-09-16Option exercise (derivative)1,042$0.008,334
2014-09-16Option exercise5,542—332,249
2014-09-16Open-market sale4,548$33.66327,701
2014-09-09Open-market sale13,400$38.70327,943
2014-09-09Open-market sale1,600$39.49326,343
2014-09-08Grant / award (derivative)36,000$0.0036,000
2014-09-08Grant / award (derivative)84,000$0.0084,000
2014-08-01Open-market sale1,833$28.100
2014-07-01Open-market sale7,700$31.633,633
2014-07-01Open-market sale1,800$32.381,833
2014-06-20Open-market sale9,000$30.0011,333
2014-06-16Option exercise (derivative)1,042$0.009,376
2014-06-16Option exercise (derivative)4,500$0.0031,500
2014-06-16Option exercise5,542—345,442
2014-06-16Open-market sale4,099$26.55341,343
2014-06-02Open-market sale6,000$25.1020,833
2014-06-02Open-market sale12,999$25.101,001
2014-06-02Open-market sale1,001$25.900
2014-06-02Open-market sale500$25.8920,333
2014-05-01Open-market sale6,500$24.9626,833
2014-05-01Open-market sale14,000$24.9614,000
2014-04-01Open-market sale6,500$26.7133,333
2014-04-01Open-market sale14,000$26.7028,000
2014-03-18Option exercise (derivative)1,041$0.0010,418
2014-03-18Option exercise1,041—341,511
2014-03-18Open-market sale2,437$28.00339,900
2014-03-05Grant / award (derivative)36,000$0.0036,000
2014-03-03Open-market sale6,935$32.3342,398
2014-03-03Open-market sale2,565$32.9139,833
2014-03-03Open-market sale5,234$32.9342,000
2014-03-03Open-market sale14,766$32.3247,234
2014-02-03Open-market sale4,900$30.3553,933
2014-02-03Open-market sale10,700$30.3671,300
2014-02-03Open-market sale4,600$31.7849,333
2014-02-03Open-market sale9,300$31.7762,000
2014-02-03Open-market sale10,779$31.50380,470
2014-02-03Open-market sale33,221$30.35391,249
2014-01-02Open-market sale2,620$33.4082,000
2014-01-02Open-market sale71,355$32.99429,115
2014-01-02Open-market sale4,645$33.45424,470
2014-01-02Open-market sale9,000$32.9959,333
2014-01-02Open-market sale500$33.4558,833
2014-01-02Open-market sale17,380$32.9784,620
2013-12-26Open-market sale18,000$30.00102,000
2013-12-26Open-market sale72,000$30.00500,470
2013-12-26Open-market sale9,000$30.0068,333
2013-12-17Option exercise (derivative)1,042$0.0011,459
2013-12-17Open-market sale2,405$24.43572,470
2013-12-17Option exercise1,042—574,875
2013-12-02Open-market sale49,049$23.68576,784
2013-12-02Open-market sale2,951$24.54573,833
2013-12-02Open-market sale6,200$23.6877,633
2013-12-02Open-market sale300$24.4777,333
2013-12-02Open-market sale13,200$23.68120,800
2013-12-02Open-market sale800$24.55120,000
2013-11-05Open-market sale3,847$21.02134,000
2013-11-05Open-market sale1,500$21.0083,833
2013-11-05Open-market sale15,500$21.16625,833
2013-11-04Open-market sale500$21.00641,333
2013-11-04Open-market sale153$21.00137,847
2013-11-01Open-market sale10,000$20.17138,000
2013-11-01Open-market sale5,000$20.1885,333
2013-11-01Open-market sale36,000$20.17641,833
2013-10-16Open-market sale32,000$21.01677,833
2013-10-16Open-market sale12,000$21.01148,000
2013-10-16Open-market sale3,000$21.0190,333
2013-10-01Open-market sale3,300$19.3295,033
2013-10-01Open-market sale6,600$19.31163,400
2013-10-01Open-market sale1,700$20.5493,333
2013-10-01Open-market sale3,400$20.53160,000
2013-10-01Open-market sale13,800$20.54709,833
2013-10-01Open-market sale22,200$19.31723,633
2013-09-16Option exercise (derivative)1,042$0.0012,501
2013-09-16Open-market sale396$17.80745,833
2013-09-16Option exercise1,042—746,229
2013-09-10Open-market sale2,500$18.0098,333
2013-09-10Open-market sale16,000$18.00745,187
2013-09-10Open-market sale10,000$18.00170,000
2013-09-04Open-market sale5,000$15.02180,000
2013-09-04Open-market sale2,500$15.01100,833
2013-09-04Open-market sale20,000$15.07761,187
2013-08-27Grant / award84,000$0.00781,187
2013-08-01Open-market sale200$16.83185,000
2013-08-01Open-market sale4,800$16.08185,200
2013-08-01Open-market sale100$16.82103,333
2013-08-01Open-market sale1,900$16.06103,433
2013-08-01Open-market sale1,000$16.82697,187
2013-08-01Open-market sale19,000$16.08698,187
2013-07-16Open-market sale18,495$18.00717,187
2013-07-15Open-market sale2,900$18.00735,682
2013-07-12Open-market sale18,605$18.02738,582
2013-07-12Open-market sale10,000$18.03190,000
2013-07-12Open-market sale4,000$18.01105,333
2013-07-01Open-market sale20,000$17.11200,000
2013-07-01Open-market sale100,000$17.11757,187
2013-07-01Open-market sale10,000$17.11109,333
2013-06-18Open-market sale381$18.29857,187
2013-06-17Option exercise (derivative)1,041$0.0013,543
2013-06-17Option exercise1,041—857,568
2013-06-11Open-market sale4,000$18.00119,333
2013-06-11Open-market sale40,000$18.08856,527
2013-06-11Open-market sale10,000$18.01220,000
2013-06-07Open-market sale20,000$16.15230,000
2013-06-07Open-market sale100,000$16.18896,527
2013-06-07Open-market sale10,000$16.14123,333
2013-04-08Option exercise (derivative)2,083$0.0014,584
2013-04-08Option exercise2,083—996,527
2012-10-09———133,333
2012-10-09———1,244,444

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.