Form4insider filings, from the source

Company · CIK 0001387467 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

ALPHA & OMEGA SEMICONDUCTOR Ltd · AOSL

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $1.7M · 9sales $12.9M · 38net −$11.2M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJan 2015Dec 2016Nov 2018Oct 2020Sep 2022Aug 2024Jul 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 24, 2026 GForm 4 →Sep 11, 4:03 pm EDTStephen Chunping ChangChief Executive Officer, Director100,947——100,947— late
Aug 24, 2026 GForm 4 →Sep 11, 4:01 pm EDTMike F ChangDirector, 10% Owner100,947——3,698,839— late
Aug 13, 2026 GForm 4 →Aug 14, 4:01 pm EDTMike F ChangDirector, 10% Owner3,000,000——560,540—
Jul 20, 2026 AForm 4 →Jul 21, 4:02 pm EDTJoshua C. ChienDirector1,368——1,368—
Jul 16, 2026 SForm 4 →Jul 17, 7:38 pm EDTBing XueEVP-WW Sales & Bus Development875$33.99$29,741122,785−0.71%10b5-1
Jul 13, 2026 GForm 4 →Jul 15, 8:03 pm EDTMike F ChangDirector, 10% Owner23,754——3,560,540—
Jun 16, 2026 SForm 4 →Jun 17, 5:27 pm EDTBing XueEVP-WW Sales & Bus Development4,916$47.09$231,494123,660−3.82%10b5-1
Jun 1, 2026 GForm 4 →Jun 3, 4:59 pm EDTMike F ChangDirector, 10% Owner30,000——3,584,294—
Feb 27, 2019 AFForm 4 →Mar 1, 8:58 pm ESTYueh-Se HoChief Operating Officer, Director24,320$10.91$48,277294,365— plan?
Feb 27, 2019 AFForm 4 →Mar 1, 8:57 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing20,223$10.91$44,99354,051— plan?
Feb 27, 2019 AFForm 4 →Mar 1, 8:57 pm ESTYifan LiangCFO and Corp Secretary24,297$10.91$49,73998,759— plan?
Feb 27, 2019 AForm 4 →Mar 1, 8:56 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner62,211——4,335,408— plan?
Jan 3, 2019 PForm 4 →Jan 4, 6:24 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner480$9.99$4,7954,273,197+0.01% plan?
Dec 24, 2018 PForm 4 →Dec 27, 6:51 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner37,671$9.86$371,4334,272,717+0.89% plan?
Dec 20, 2018 PForm 4 →Dec 21, 6:19 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner31,318$9.88$309,3634,235,046+0.75% plan?
Dec 17, 2018 PForm 4 →Dec 19, 6:12 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner40,252$9.96$401,0374,203,728+0.97% plan?
Dec 11, 2018 PForm 4 →Dec 13, 4:56 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner800$10.00$7,9974,163,476+0.02% plan?
Dec 6, 2018 PForm 4 →Dec 10, 6:36 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner36,405$9.93$361,5344,162,676+0.88% plan?
Nov 20, 2018 PForm 4 →Nov 21, 5:11 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner3,930$10.00$39,2964,126,271+0.10% plan?
Nov 20, 2018 PForm 4 →Nov 21, 4:32 pm ESTMichael J SalamehDirector14,465$10.37$149,99550,340+40.3% plan?
Nov 9, 2018 AForm 4 →Nov 13, 4:10 pm ESTMichael J SalamehDirector7,974——35,875— plan?
Nov 9, 2018 AForm 4 →Nov 13, 4:09 pm ESTKing OwyangDirector7,974——29,880— plan?
Nov 9, 2018 AForm 4 →Nov 13, 4:08 pm ESTRobert I ChenDirector7,974——24,030— plan?
Nov 9, 2018 AForm 4 →Nov 13, 4:06 pm ESTMichael L PfeifferDirector7,974——29,880— plan?
Nov 9, 2018 AForm 4 →Nov 13, 4:05 pm ESTLucas S. ChangDirector7,974——18,258— plan?
Aug 15, 2018 FForm 4 →Aug 17, 2:13 pm EDTYifan LiangCFO and Corp Secretary166$14.40$2,39083,580— plan?
Jun 18, 2018 SForm 4 →Jun 20, 5:47 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing9,481$15.92$150,91942,076−18.4% plan?
Apr 17, 2018 SForm 4 →Apr 18, 6:58 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing3,750$16.00$60,00050,693−6.89% plan?
Apr 17, 2018 MForm 4 →Apr 18, 6:58 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing3,750$7.44$27,90054,443— plan?
Apr 6, 2018 SForm 4 →Apr 9, 6:13 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing814$15.50$12,61750,693−1.58% plan?
Apr 3, 2018 SForm 4 →Apr 4, 1:09 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing852$15.09$12,85751,507−1.63% plan?
Mar 15, 2018 AFMForm 4 →Mar 19, 5:45 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner82,482$16.22$296,9404,122,341— plan?
Mar 15, 2018 AFMForm 4 →Mar 19, 5:45 pm EDTYueh-Se HoChief Operating Officer, Director22,277$16.22$104,862278,895— plan?
Mar 15, 2018 AFMForm 4 →Mar 19, 5:45 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing15,711$16.22$88,57752,359— plan?
Mar 15, 2018 AFMForm 4 →Mar 19, 5:44 pm EDTYifan LiangCFO and Corp Secretary22,579$16.22$118,87682,882— plan?
Mar 12, 2018 AForm 4 →Mar 14, 6:13 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner26,916——4,076,473— plan?
Mar 12, 2018 AFForm 4 →Mar 14, 6:12 pm EDTYifan LiangCFO and Corp Secretary15,974$16.73$73,99774,961— plan?
Mar 12, 2018 AFForm 4 →Mar 14, 6:09 pm EDTYueh-Se HoChief Operating Officer, Director15,450$16.73$71,788269,548— plan?
Mar 12, 2018 AFForm 4 →Mar 14, 6:09 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing14,184$16.73$66,45247,570— plan?
Jan 8, 2018 SForm 4 →Jan 10, 5:31 pm ESTYifan LiangCFO and Corp Secretary15,075$17.70$266,82867,833−18.2% plan?
Nov 8, 2017 AForm 4 →Nov 13, 12:58 pm ESTKing OwyangDirector5,771——21,906— plan? late
Nov 8, 2017 AForm 4 →Nov 13, 12:57 pm ESTLucas S. ChangDirector5,771——10,284— plan? late
Nov 8, 2017 AForm 4 →Nov 13, 12:57 pm ESTMichael J SalamehDirector5,771——27,901— plan? late
Nov 8, 2017 AForm 4 →Nov 13, 12:57 pm ESTRobert I ChenDirector5,771——16,056— plan? late
Nov 8, 2017 AForm 4 →Nov 13, 12:56 pm ESTMichael L PfeifferDirector5,771——21,906— plan? late
Oct 31, 2017 SForm 4 →Nov 1, 4:28 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing3,398$18.00$61,16440,516−7.74% plan?
Oct 9, 2017 SForm 4 →Oct 11, 1:37 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing3,588$17.19$61,67543,914−7.55% plan?
Aug 15, 2017 FForm 4 →Aug 16, 7:01 pm EDTYifan LiangCFO and Corp Secretary188$15.46$2,90682,094— plan?
May 4, 2017 MForm 4 →May 8, 6:26 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing5,688$7.67$43,64547,963— plan?
May 4, 2017 SForm 4 →May 8, 6:26 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing6,891$18.83$129,72646,650−12.9% plan?
Mar 15, 2017 AFForm 4 →Mar 17, 8:37 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner78,785$17.58$154,4404,049,557— plan?
Mar 15, 2017 AFForm 4 →Mar 17, 8:37 pm EDTYifan LiangCFO and Corp Secretary30,115$17.58$89,92281,430— plan?
Mar 15, 2017 AFForm 4 →Mar 17, 8:37 pm EDTYueh-Se HoChief Operating Officer, Director17,596$17.58$89,588262,680— plan?
Mar 15, 2017 AFForm 4 →Mar 17, 8:36 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing16,209$17.58$73,99447,853— plan?
Feb 14, 2017 FForm 4 →Feb 16, 5:43 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner1,373$21.48$29,4923,988,342— plan?
Feb 14, 2017 FForm 4 →Feb 16, 5:43 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing256$21.48$5,49940,062— plan?
Feb 14, 2017 FForm 4 →Feb 16, 5:42 pm ESTYueh-Se HoChief Operating Officer, Director497$21.48$10,676255,276— plan?
Feb 14, 2017 FForm 4 →Feb 16, 5:42 pm ESTYifan LiangCFO and Corp Secretary161$21.48$3,45861,545— plan?
Dec 12, 2016 SForm 4 →Dec 14, 6:38 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner50,000$22.15$1,107,3013,989,715−1.24% plan?
Dec 9, 2016 SForm 4 →Dec 13, 6:49 pm ESTRobert I ChenDirector13,350$21.73$290,05010,285−56.5% plan?
Dec 9, 2016 MForm 4 →Dec 13, 6:49 pm ESTRobert I ChenDirector7,500$7.56$56,70023,635— plan?
Dec 8, 2016 SForm 4 →Dec 12, 6:36 pm ESTYueh-Se HoChief Operating Officer, Director81,667$20.58$1,680,541255,773−24.2% plan?
Nov 25, 2016 SForm 4 →Nov 29, 6:43 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing10,096$22.90$231,19840,318−20.0% plan?
Nov 25, 2016 MForm 4 →Nov 29, 6:43 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing10,096$10.50$105,98044,693— plan?
Nov 23, 2016 SForm 4 →Nov 28, 8:19 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing1,860$22.90$42,59440,318−4.41% plan?
Nov 23, 2016 MForm 4 →Nov 28, 8:19 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing1,860$14.14$26,30042,178— plan?
Nov 22, 2016 SForm 4 →Nov 23, 7:10 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing3,731$22.90$85,44040,318−8.47% plan?
Nov 22, 2016 MForm 4 →Nov 23, 7:10 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing3,731$14.14$52,75644,049— plan?
Nov 21, 2016 GForm 4 →Dec 14, 6:38 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner10,000——4,039,715— plan? late
Nov 11, 2016 SForm 4 →Nov 15, 7:08 pm ESTMike F ChangChief Executive Officer, Director, 10% Owner50,000$21.00$1,050,0004,049,715−1.22% plan?
Nov 9, 2016 AForm 4 →Nov 14, 5:58 pm ESTMichael L PfeifferDirector4,513——16,135— plan? late
Nov 9, 2016 AForm 4 →Nov 14, 5:57 pm ESTRobert I ChenDirector4,513——16,135— plan? late
Nov 9, 2016 AForm 4 →Nov 14, 5:57 pm ESTLucas S. ChangDirector4,513——4,513— plan? late
Nov 9, 2016 AForm 4 →Nov 14, 5:57 pm ESTMichael J SalamehDirector4,513——22,130— plan? late
Nov 9, 2016 AForm 4 →Nov 14, 5:56 pm ESTKing OwyangDirector4,513——16,135— plan? late
Oct 10, 2016 SForm 4 →Oct 12, 5:03 pm EDTYifan LiangCFO and Corp Secretary2,564$23.00$58,97260,831−4.04% plan?
Oct 10, 2016 MForm 4 →Oct 12, 5:03 pm EDTYifan LiangCFO and Corp Secretary2,564$13.00$33,33263,395— plan?
Oct 10, 2016 SForm 4 →Oct 12, 5:02 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner50,000$22.64$1,132,0404,099,715−1.20% plan?
Sep 21, 2016 SForm 4 →Sep 23, 5:40 pm EDTYueh-Se HoChief Operating Officer, Director36,971$20.65$763,429337,440−9.87% plan?
Sep 21, 2016 MForm 4 →Sep 23, 5:40 pm EDTYueh-Se HoChief Operating Officer, Director36,971$10.30$380,664347,440— plan?
Sep 19, 2016 GForm 4 →Oct 12, 5:02 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner100,000——4,149,715— plan? late
Sep 19, 2016 MForm 4 →Sep 21, 8:26 pm EDTYueh-Se HoChief Operating Officer, Director133,612$12.45$1,662,846355,540— plan?
Sep 19, 2016 SForm 4 →Sep 21, 8:26 pm EDTYueh-Se HoChief Operating Officer, Director133,870$21.08$2,822,306337,440−28.4% plan?
Aug 15, 2016 FForm 4 →Aug 17, 6:30 pm EDTYifan LiangCFO and Corp Secretary184$19.33$3,55760,831— plan?
Aug 11, 2016 SForm 4 →Aug 15, 6:12 pm EDTYifan LiangCFO and Corp Secretary17,436$16.00$278,97661,015−22.2% plan?
Aug 11, 2016 MForm 4 →Aug 15, 6:12 pm EDTYifan LiangCFO and Corp Secretary17,436$13.00$226,66878,451— plan?
Aug 11, 2016 SForm 4 →Aug 15, 6:11 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing10,500$17.50$183,75039,443−21.0% plan?
Aug 11, 2016 MForm 4 →Aug 15, 6:11 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing10,500$9.90$103,95049,943— plan?
Aug 10, 2016 SForm 4 →Aug 12, 6:25 pm EDTYueh-Se HoChief Operating Officer, Director75,000$15.55$1,165,975337,698−18.2% plan?
Aug 10, 2016 MForm 4 →Aug 12, 6:25 pm EDTYueh-Se HoChief Operating Officer, Director75,000$11.00$825,000341,357— plan?
Jul 13, 2016 SForm 4 →Jul 15, 4:09 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing2,070$14.50$30,01539,443−4.99% plan?
Jul 8, 2016 SForm 4 →Jul 12, 5:38 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing724$14.00$10,13640,638−1.75% plan?
Jul 1, 2016 SForm 4 →Jul 6, 4:06 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing2,679$13.83$37,05441,362−6.08% plan?
Apr 26, 2016 FForm 4 →Apr 28, 4:14 pm EDTYifan LiangCFO and Corp Secretary12$13.65$16460,140— plan?
Apr 26, 2016 FForm 4 →Apr 28, 4:14 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner97$13.65$1,3244,249,715— plan?
Apr 26, 2016 FForm 4 →Apr 28, 4:13 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing19$13.65$25944,041— plan?
Apr 26, 2016 FForm 4 →Apr 28, 4:13 pm EDTYueh-Se HoChief Operating Officer, Director35$13.65$478337,698— plan?
Apr 6, 2016 SForm 4 →Apr 8, 4:33 pm EDTYifan LiangCFO and Corp Secretary10,000$12.00$120,00060,152−14.3% plan?
Apr 6, 2016 MForm 4 →Apr 8, 4:33 pm EDTYifan LiangCFO and Corp Secretary10,000$8.60$86,00070,152— plan?
Mar 31, 2016 SForm 4 →Apr 4, 5:07 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing45,645$11.09$506,03344,060−50.9% plan?

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Apr 17, 2018 MForm 4 →Apr 18, 6:58 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing3,750——5,730—
Mar 15, 2018 AMForm 4 →Mar 19, 5:45 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner105,750——90,000—
Mar 15, 2018 AMForm 4 →Mar 19, 5:45 pm EDTYueh-Se HoChief Operating Officer, Director25,125——22,000—
Mar 15, 2018 AMForm 4 →Mar 19, 5:45 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing15,500——13,000—
Mar 15, 2018 AMForm 4 →Mar 19, 5:44 pm EDTYifan LiangCFO and Corp Secretary24,500——22,000—
May 4, 2017 MForm 4 →May 8, 6:26 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing5,688——0—
Mar 15, 2017 AForm 4 →Mar 17, 8:37 pm EDTMike F ChangChief Executive Officer, Director, 10% Owner63,000——63,000—
Mar 15, 2017 AForm 4 →Mar 17, 8:37 pm EDTYifan LiangCFO and Corp Secretary10,000——10,000—
Mar 15, 2017 AForm 4 →Mar 17, 8:37 pm EDTYueh-Se HoChief Operating Officer, Director12,500——12,500—
Mar 15, 2017 AForm 4 →Mar 17, 8:36 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing10,000——10,000—
Dec 9, 2016 MForm 4 →Dec 13, 6:49 pm ESTRobert I ChenDirector7,500——0—
Nov 25, 2016 MForm 4 →Nov 29, 6:43 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing10,096——13,855—
Nov 23, 2016 MForm 4 →Nov 28, 8:19 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing1,860——14,409—
Nov 22, 2016 MForm 4 →Nov 23, 7:10 pm ESTDaniel Kuang Ming ChangSenior VP of Marketing3,731——16,269—
Oct 10, 2016 MForm 4 →Oct 12, 5:03 pm EDTYifan LiangCFO and Corp Secretary2,564——0—
Sep 21, 2016 MForm 4 →Sep 23, 5:40 pm EDTYueh-Se HoChief Operating Officer, Director36,971——0—
Sep 19, 2016 MForm 4 →Sep 21, 8:26 pm EDTYueh-Se HoChief Operating Officer, Director133,612——10,000—
Aug 11, 2016 MForm 4 →Aug 15, 6:12 pm EDTYifan LiangCFO and Corp Secretary17,436——2,564—
Aug 11, 2016 MForm 4 →Aug 15, 6:11 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing10,500——0—
Aug 10, 2016 MForm 4 →Aug 12, 6:25 pm EDTYueh-Se HoChief Operating Officer, Director75,000——0—
Apr 6, 2016 MForm 4 →Apr 8, 4:33 pm EDTYifan LiangCFO and Corp Secretary10,000——0—
Mar 31, 2016 MForm 4 →Apr 4, 5:07 pm EDTDaniel Kuang Ming ChangSenior VP of Marketing45,645——18,230—
Nov 19, 2015 MForm 4 →Nov 23, 4:01 pm ESTYifan LiangCFO and Corp Secretary9,444——0—
Nov 9, 2015 MForm 4 →Nov 12, 5:23 pm ESTYifan LiangCFO and Corp Secretary12——9,444— late
Nov 5, 2015 MForm 4 →Nov 9, 4:20 pm ESTYifan LiangCFO and Corp Secretary544——9,456—
Apr 2, 2015 MForm 4 →Apr 6, 4:04 pm EDTTony GrizeljVP of Power Discrete Product4,500——0—
Mar 13, 2015 MForm 4 →Mar 17, 7:53 pm EDTTony GrizeljVP of Power Discrete Product4,500——4,500—
Feb 13, 2015 MForm 4 →Feb 18, 5:41 pm ESTTony GrizeljVP of Power Discrete Product4,500——9,000—
Jan 13, 2015 MForm 4 →Jan 14, 6:15 pm ESTTony GrizeljVP of Power Discrete Product4,500——13,500—