| $164M | ||
| $143M | ||
| $143M | ||
| $76M | ||
| $60M | ||
| $35M |
Buys | $0 | 0 | 0 |
Sells | $131,751 | 4 | 100 |
| Xue Bing | EVP-WW Sales & Bus Development | 0 | $0 | 4 | $131,751 | $-131,751 |
Alpha and Omega Semiconductor Limited designs, develops, and supplies power semiconductor products for computing, consumer electronics, communication, and industrial applications in Hong Kong, China, South Korea, the United States, and internationally. It offers power discrete products, including metal-oxide-semiconductor field-effect transistors (MOSFET), SRFETs, XSFET, electrostatic discharge, protected MOSFETs, high and mid-voltage MOSFETs, and insulated gate bipolar transistors for use in smart phone chargers, battery packs, notebooks, desktop and servers, data centers, base stations, graphics card, game boxes, TVs, AC adapters, power supplies, motor control, power tools, e-vehicles, white goods and industrial motor drives, UPS systems, solar inverters, and industrial welding. The company also provides power ICs that deliver power, as well as control and regulate the power management variables, such as the flow of current and level of voltage. Its power ICs are used in flat panel displays, TVs, Notebooks, graphic cards, servers, DVD/Blu-Ray players, set-top boxes, and networking equipment. In addition, the company offers aMOS5 MOSFET for quick charger, adapter, PC power, server, industrial power, telecom, and datacenter applications; and Transient Voltage Suppressors for laptops, televisions, and other electronic devices. Further, it provides EZBuck regulators; SOA MOSFET for hot swap applications; RigidCSP for battery management; and Type-C power delivery protection switches. The company was incorporated in 2000 and is headquartered in Sunnyvale, California.
Over the last 12 months, insiders at Alpha and Omega Semiconductor Limited have bought $0 and sold $131,751 worth of Alpha and Omega Semiconductor Limited stock.
On average, over the past 5 years, insiders at Alpha and Omega Semiconductor Limited have bought $0 and sold $2.92M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 480 shares for transaction amount of $4,795 was made by Chang Mike F (Chief Executive Officer) on 2019‑01‑03.
| 2026-01-15 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 737 0.0024% | $22.43 | $16,531 | +2.25% | |
| 2025-12-15 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 1,845 0.0063% | $20.56 | $37,933 | +2.04% | |
| 2025-11-14 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 1,845 0.0059% | $18.16 | $33,505 | +10.21% | |
| 2025-05-12 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 1,845 0.0062% | $23.73 | $43,782 | +8.08% | |
| 2025-01-13 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 1,242 0.0042% | $35.00 | $43,470 | -25.41% | |
| 2024-12-12 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 1,883 0.0065% | $47.38 | $89,217 | -42.32% | |
| 2024-12-05 | Sale | Chen Claudia | director | 5,623 0.021% | $51.27 | $288,287 | -41.92% | |
| 2024-12-04 | Sale | Liang Yifan | CFO and Corp Secretary | 31,004 0.1074% | $49.21 | $1.53M | -44.13% | |
| 2024-12-03 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 875 0.0027% | $41.00 | $35,875 | -40.96% | |
| 2024-12-03 | Sale | Chang Lucas S. | director | 12,497 0.0386% | $41.46 | $518,159 | -40.96% | |
| 2024-10-24 | Sale | Li Wenjun | Chief Operating Officer | 2,183 0.0074% | $35.49 | $77,475 | -21.18% | |
| 2024-09-11 | Sale | Li Wenjun | Chief Operating Officer | 9,346 0.032% | $32.39 | $302,675 | -18.36% | |
| 2024-08-23 | Sale | Chang Lucas S. | director | 3,377 0.0117% | $38.06 | $128,521 | -26.27% | |
| 2024-08-12 | Sale | Liang Yifan | CFO and Corp Secretary | 10,000 0.0359% | $35.60 | $355,967 | -12.29% | |
| 2024-04-22 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 1,956 0.0068% | $19.57 | $38,287 | +79.08% | |
| 2024-03-20 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 4,401 0.015% | $20.56 | $90,469 | +66.00% | |
| 2024-03-13 | Sale | Liang Yifan | CFO and Corp Secretary | 20,000 0.0715% | $22.67 | $453,418 | +57.72% | |
| 2024-03-12 | Sale | Liang Yifan | CFO and Corp Secretary | 20,000 0.0707% | $23.31 | $466,186 | +51.97% | |
| 2024-03-11 | Sale | Liang Yifan | CFO and Corp Secretary | 30,000 0.1062% | $23.60 | $707,865 | +50.42% | |
| 2024-02-14 | Sale | Xue Bing | EVP-WW Sales & Bus Development | 14,292 0.0487% | $22.77 | $325,377 | +53.87% |
| Xue Bing | EVP-WW Sales & Bus Development | 118499 0.3942% | $2.67M | 0 | 33 | |
| Chang Mike F | Executive Chairman | 4500286 14.9703% | $101.3M | 13 | 18 | +14.44% |
| Liang Yifan | CFO and Corp Secretary | 265175 0.8821% | $5.97M | 0 | 21 | |
| Ho Yueh-Se | director | 189583 0.6307% | $4.27M | 0 | 12 | |
| Li Wenjun | Chief Operating Officer | 61331 0.204% | $1.38M | 0 | 2 | |
| Pfeiffer Michael L | director | 61157 0.2034% | $1.38M | 0 | 2 | |
| SALAMEH MICHAEL J | director | 50340 0.1675% | $1.13M | 4 | 0 | +14.5% |
| Chang Daniel Kuang Ming | Senior VP of Marketing | 46543 0.1548% | $1.05M | 0 | 19 | |
| Grizelj Tony | VP of Power Discrete Product | 28466 0.0947% | $640,769.66 | 0 | 22 | |
| STEVENS MARK A | director, 10 percent owner | 27384 0.0911% | $616,413.84 | 3 | 17 | +11.37% |
| Chen Claudia | director | 26572 0.0884% | $598,135.72 | 0 | 1 | |
| SCGF III MANAGEMENT LLC | 10 percent owner | 25962 0.0864% | $584,404.62 | 0 | 21 | |
| Chang Lucas S. | director | 25204 0.0838% | $567,342.04 | 0 | 3 | |
| CHEN ROBERT I | director | 10285 0.0342% | $231,515.35 | 0 | 1 | |
| YILMAZ HAMZA | Chief Technology Officer | 9214 0.0307% | $207,407.14 | 0 | 1 | |
| BAILEY HOWARD | director | 1229 0.0041% | $27,664.79 | 1 | 0 | +17.73% |
$5,762,100 | 183 | 30.80% | $35.47M | |
$1,160,431 | 56 | 1.77% | $619.52M | |
$9,178,168 | 55 | -5.26% | $526.91M | |
$21,505,671 | 34 | 1.42% | $109.02M | |
$14,028 | 32 | 7.79% | $2.4B | |
$1,238,294 | 27 | 8.64% | $216.81M | |
$8,266,881 | 25 | 162.69% | $2.64B | |
Alpha and Omega Semiconductor Limited (AOSL) | $1,967,682 | 21 | 14.17% | $676.68M |
$7,836,019 | 21 | -2.80% | $1.69B | |
$6,963,316 | 19 | 30.72% | $2.53B | |
$315,352 | 16 | 16.40% | $144.24M | |
$16,378,042 | 9 | 30.20% | $303.01M | |
$312,286 | 9 | 17.42% | $6.07B | |
$706,980 | 6 | 17.97% | $2.48B | |
$25,100,830 | 6 | 5.06% | $330.52M | |
$10,040,962 | 5 | 9.20% | $4.89B | |
$61,244,925 | 3 | -35.44% | $2.51B | |
$120,000 | 1 | -5.25% | $251.16M | |
$38 | 1 | -48.32% | $767.52M |
| Increased Positions | 94 | +52.22% | 1M | +6.17% |
| Decreased Positions | 74 | -41.11% | 1M | -5.18% |
| New Positions | 33 | New | 268,245 | New |
| Sold Out Positions | 17 | Sold Out | 216,513 | Sold Out |
| Total Postitions | 200 | +11.11% | 22M | +0.99% |
| Blackrock, Inc. | $79,444.00 | 12.82% | 3.85M | -12,659 | -0.33% | 2025-09-30 |
| Vanguard Group Inc | $50,699.00 | 8.18% | 2.45M | +33,959 | +1.4% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $34,867.00 | 5.63% | 1.69M | -32,567 | -1.89% | 2025-09-30 |
| Manufacturers Life Insurance Company, The | $32,126.00 | 5.18% | 1.56M | +143,603 | +10.18% | 2025-09-30 |
| State Street Corp | $25,041.00 | 4.04% | 1.21M | -66,667 | -5.21% | 2025-09-30 |
| Wellington Management Group Llp | $17,870.00 | 2.88% | 864,965 | +113,077 | +15.04% | 2025-09-30 |
| Boston Partners | $16,252.00 | 2.62% | 786,630 | -322,747 | -29.09% | 2025-09-30 |
| Robeco Schweiz Ag | $16,224.00 | 2.62% | 785,264 | +2,761 | +0.35% | 2025-09-30 |
| Millennium Management Llc | $13,179.00 | 2.13% | 637,876 | +232,817 | +57.48% | 2025-09-30 |
| Geode Capital Management, Llc | $12,550.00 | 2.03% | 607,477 | +5,805 | +0.96% | 2025-09-30 |