ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) Institutional Ownership

Ownership Summary

ALPHA & OMEGA SEMICONDUCTOR Ltd (NASDAQ:AOSL) has 178 institutional investors with active 13F positions as of March 2026.

• These investors held 74.5% of outstanding shares in March 2026, down from 77.5% in December 2025.
• Their total shares held in AOSL increased 13.66% quarter over quarter, and separately, investors owning Alpha & Omega Semiconductor increased 12.66% from a year ago.
• During the quarter, 93 of these 178 funds increased positions in AOSL, 54 reduced exposure, and 31 held steady.
• Combined, these investors held 22.19Mn shares in AOSL for March 2026, up by 2.67Mn shares quarter on quarter, and down 1.29Mn shares year over year.
• BlackRock, Inc. holds the largest position in AOSL at 3.9Mn shares as of March 31, 2026, or 13.1% of shares outstanding.
• The most significant purchases of AOSL for the quarter ending March 2026 came from VANGUARD PORTFOLIO MANAGEMENT LLC (1.17Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.05Mn), TWO SIGMA INVESTMENTS, LP (274.89K), JACOBS LEVY EQUITY MANAGEMENT, INC (229.16K), VANGUARD FIDUCIARY TRUST CO (162.94K).
• Leading sellers of Alpha & Omega Semiconductor shares for the quarter ending March 2026 were Goldman Sachs Group Inc (626.36K), WELLINGTON MANAGEMENT GROUP LLP (331.14K), Russell Investments Group, Ltd. (171.7K), Uniplan Investment Counsel, Inc. (162.61K), Empowered Funds, LLC (98.75K).
• Business Quant data shows the 10 biggest positions in Alpha & Omega Semiconductor as of March 2026 are held by BlackRock, Inc. (3.9Mn), MANUFACTURERS LIFE INSURANCE COMPANY, THE (1.57Mn), DIMENSIONAL FUND ADVISORS LP (1.56Mn), State Street Corp (1.4Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.17Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.05Mn), WELLINGTON MANAGEMENT GROUP LLP (694.81K), GEODE CAPITAL MANAGEMENT, LLC (628.67K), TWO SIGMA INVESTMENTS, LP (553.01K), FMR LLC (544.71K).