None of the 29 investors followed here reported a position in AOSL in their latest filing.
From each investor's quarterly 13F filing with the SEC: positions at the quarter's end, reported up to 45 days later. All investors
| Date | Insider | Transaction | Shares | Value |
|---|---|---|---|---|
| Aug 23, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Gift at price 0.00 per share. | 100.9K | — |
| Aug 12, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Gift at price 0.00 per share. | 3.00M | — |
| Jul 19, 2026 | Chien Joshua C.Director | Stock Award(Grant) at price 0.00 per share. | 1.4K | — |
| Jul 15, 2026 | Xue BingOfficer | Sale at price 33.99 per share. | 875 | $29.74K |
| Jul 12, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Gift at price 0.00 per share. | 23.8K | — |
| Jun 15, 2026 | Xue BingOfficer | Sale at price 47.09 per share. | 4.9K | $231.49K |
| May 31, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Gift at price 0.00 per share. | 30K | — |
| May 25, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Gift at price 0.00 per share. | 39.8K | — |
| May 21, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Gift at price 0.00 per share. | 736.3K | — |
| May 20, 2026 | Chang Stephen ChunpingChief Executive Officer | Stock Gift at price 0.00 per share. | 2K | — |
| May 17, 2026 | Xue BingOfficer | Sale at price 41.00 per share. | 4.9K | $201.56K |
| Apr 27, 2026 | Liang YifanChief Financial Officer | Stock Gift at price 0.00 per share. | 600 | — |
| Apr 16, 2026 | Liang YifanChief Financial Officer | Sale at price 35.00 per share. | 8.6K | $301.88K |
| Apr 16, 2026 | Chang Stephen ChunpingChief Executive Officer | Sale at price 32.90 - 34.90 per share. | 14.9K | $512.99K |
| Apr 15, 2026 | Xue BingOfficer | Sale at price 31.21 per share. | 1.8K | $57.18K |
| Apr 13, 2026 | Liang YifanChief Financial Officer | Sale at price 29.00 - 32.00 per share. | 26.5K | $810.50K |
| Apr 13, 2026 | Chang Stephen ChunpingChief Executive Officer | Sale at price 31.90 per share. | 5.6K | $178.45K |
| Mar 15, 2026 | Xue BingOfficer | Sale at price 21.92 per share. | 2.4K | $52.78K |
| Mar 15, 2026 | Liang YifanChief Financial Officer | Stock Award(Grant) at price 0.00 per share. | 45K | — |
| Mar 15, 2026 | Chang Mike FDirector and Beneficial Owner of more than 10% of a Class of Security | Stock Award(Grant) at price 0.00 per share. | 45K | — |
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 11.6 | -4.9 | 5.5 | 96.0 | 4.4 | 4.4 | -32.9 | -22.3 | 11.5 | -6.0 | +30.5% | ||
| 2025 | 3.8 | -21.2 | -17.9 | -24.3 | 12.7 | 20.9 | -0.7 | 13.0 | -2.8 | 0.4 | -27.7 | -2.3 | −46.5% |
| 2024 | -1.5 | -14.7 | 0.6 | -0.8 | 34.0 | 27.5 | 10.8 | 1.0 | -11.2 | -11.0 | 25.5 | -10.7 | +42.1% |
| 2023 | 15.4 | -19.0 | 0.9 | -11.4 | 16.0 | 18.5 | 0.2 | -4.0 | -5.4 | -20.5 | -9.8 | 21.8 | −8.8% |
| 2022 | -25.6 | 19.4 | 1.6 | -21.5 | 2.4 | -24.1 | 26.0 | -8.0 | -20.4 | 6.5 | 7.1 | -18.6 | −52.8% |
| 2021 | 21.6 | 22.4 | -7.1 | -4.9 | 3.6 | -5.7 | -14.5 | 11.8 | 8.0 | 10.5 | 41.8 | 23.3 | +156.2% |
| 2020 | -10.5 | -11.1 | -40.9 | 87.7 | -12.6 | 3.4 | 0.1 | 24.4 | -5.4 | 23.7 | 56.6 | -4.8 | +73.6% |
| 2019 | 16.9 | -9.7 | 7.0 | 7.7 | -31.1 | 9.4 | 8.7 | 16.1 | 4.2 | 6.4 | -9.0 | 14.6 | +33.7% |
| 2018 | 2.6 | -8.5 | 0.5 | -1.9 | 2.4 | -8.3 | -6.2 | 6.4 | -18.2 | -20.3 | 18.9 | -7.5 | −37.7% |
| 2017 | -4.3 | -5.4 | -10.7 | -3.7 | 12.5 | -10.5 | 6.2 | -10.3 | 3.8 | 11.8 | -4.4 | -7.1 | −23.1% |
| 2016 | 3.9 | 23.9 | 0.2 | 9.6 | 5.4 | 1.8 | 2.6 | 47.4 | 3.1 | -2.7 | 2.9 | -2.2 | +131.4% |
| 2015 | -0.9 | 1.1 | 0.5 | -8.1 | 0.1 | 6.6 | -10.2 | -2.5 | 1.8 | 14.0 | 9.7 | -5.6 | +3.8% |
| 2014 | -5.8 | 0.4 | 1.0 | -2.2 | 14.4 | 12.5 | -1.3 | 0.8 | 2.0 | -1.4 | -7.4 | 3.1 | +14.8% |
| 2013 | -3.5 | -0.6 | 10.2 | -18.5 | 9.0 | -3.2 | 0.1 | -7.5 | 18.8 | -12.5 | 5.3 | -0.5 | −8.2% |
| 2012 | 26.9 | 6.8 | -2.9 | 2.8 | -9.3 | 2.0 | -15.7 | 23.1 | -9.3 | -1.0 | 2.1 | -3.4 | +14.9% |
| 2011 | 10.2 | -7.6 | -2.8 | 11.7 | -1.4 | -5.2 | -15.2 | -21.5 | -6.9 | 2.3 | 4.3 | -16.6 | −43.0% |
| 2010 | -16.9 | -7.3 | -10.1 | -10.3 | 2.1 | -1.3 | 4.9 | 9.1 | −28.4% |
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. The company offers power discrete products, including industry standard trench metal-oxide-semiconductor field-effect transistors (MOSFETs), Shielded-Gate low- and mid-voltage MOSFETs, SuperJunction high-voltage MOSFETs, and trench-stop insulated gate bipolar transistors, as well as application-specific MOSFETs for smartphone battery management, dual MOSFETs for CPU power conversion, and high-power density MOSFETs for IBC power modules in AI data centers. It also provides power IC products, total power solutions for Intel panther lake and wildcat lake platforms, and the SmartClamp family of protected DrMOS for AI servers, data centers, and high-end graphics cards, as well as silicon carbide, IPM, HV gate drivers, and digital power products. Alpha and Omega Semiconductor Limited was incorporated in 2000 and is headquartered in Sunnyvale, California.
Buy / hold / sell counts
No member of Congress has disclosed a AOSL trade since 2025.
From House and Senate STOCK Act reports. Members disclose trades, not holdings, as value ranges up to 45 days later, so amounts are estimates and “last move” is a hint at who still holds it, not a position. All recent congress trades