AOSL Alpha and Omega Semiconductor Limited
Alpha and Omega Semiconductor Limited (AOSL) Institutional Ownership
What the institutions did with AOSL last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 4.3M | 18.6% |
| STATE STREET CORP | 2.3M | 10.3% |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1.4M | 6.0% |
| DIMENSIONAL FUND ADVISORS LP | 1.3M | 5.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.1M | 4.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.1M | 4.7% |
| TWO SIGMA INVESTMENTS, LP | 951.6K | 4.2% |
| FMR LLC | 791.7K | 3.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 658.9K | 2.9% |
| Connor, Clark & Lunn Investment Management Ltd. | 636.9K | 2.8% |
| WEBER CAPITAL MANAGEMENT LLC /ADV | 538.4K | 2.4% |
| WELLINGTON MANAGEMENT GROUP LLP | 412.9K | 1.8% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 403.2K | 1.8% |
| ACADIAN ASSET MANAGEMENT LLC | 323.9K | 1.4% |
| ROYCE & ASSOCIATES LP | 309.0K | 1.4% |
| D. E. Shaw & Co., Inc. | 284.2K | 1.2% |
| GOLDMAN SACHS GROUP INC | 279.1K | 1.2% |
| MILLENNIUM MANAGEMENT LLC | 267.6K | 1.2% |
| NORTHERN TRUST CORP | 261.0K | 1.1% |
| JANE STREET GROUP, LLC | 234.3K | 1.0% |
| MORGAN STANLEY | 217.2K | 1.0% |
| Invesco Ltd. | 207.8K | 0.9% |
| Apis Capital Advisors, LLC | 206.3K | 0.9% |
| CONGRESS ASSET MANAGEMENT CO | 203.5K | 0.9% |
| PANAGORA ASSET MANAGEMENT INC | 194.4K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| STATE STREET CORP | Increased | 1.4M | 2.3M | +945.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 553.0K | 951.6K | +398.6K |
| BlackRock, Inc. | Increased | 3.9M | 4.3M | +351.8K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 336.7K | 636.9K | +300.2K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 694.8K | 412.9K | -281.9K |
| FMR LLC | Increased | 544.7K | 791.7K | +247.0K |
| JPMORGAN CHASE & CO | Reduced | 344.0K | 109.6K | -234.5K |
| JANE STREET GROUP, LLC | New | 0 | 234.3K | +234.3K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.6M | 1.3M | -228.8K |
| ROYCE & ASSOCIATES LP | Reduced | 518.1K | 309.0K | -209.1K |
| Apis Capital Advisors, LLC | New | 0 | 206.3K | +206.3K |
| CONGRESS ASSET MANAGEMENT CO | New | 0 | 203.5K | +203.5K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | 1.6M | 1.4M | -199.4K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 353.9K | 160.9K | -193.0K |
| Invesco Ltd. | Reduced | 375.8K | 207.8K | -167.9K |
| GAGNON SECURITIES LLC | Sold Out | 167.9K | 0 | -167.9K |
| PEREGRINE CAPITAL MANAGEMENT LLC | Sold Out | 161.8K | 0 | -161.8K |
| T. Rowe Price Investment Management, Inc. | New | 0 | 154.0K | +154.0K |
| Uniplan Investment Counsel, Inc. | Sold Out | 150.2K | 0 | -150.2K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 58.8K | 194.4K | +135.6K |
| Point72 Asset Management, L.P. | Sold Out | 129.3K | 0 | -129.3K |
| Gagnon Advisors, LLC | Sold Out | 120.2K | 0 | -120.2K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 210.6K | 323.9K | +113.2K |
| IMC-Chicago, LLC | New | 0 | 99.8K | +99.8K |
| STATE OF WISCONSIN INVESTMENT BOARD | Sold Out | 78.5K | 0 | -78.5K |
| SEI INVESTMENTS CO | Reduced | 83.8K | 9.0K | -74.9K |
| TUDOR INVESTMENT CORP ET AL | Increased | 69.6K | 144.3K | +74.8K |
| MILLENNIUM MANAGEMENT LLC | Increased | 197.8K | 267.6K | +69.9K |
| SG Americas Securities, LLC | Reduced | 72.5K | 4.4K | -68.1K |
| Susquehanna Portfolio Strategies, LLC | Sold Out | 66.6K | 0 | -66.6K |
| ALGERT GLOBAL LLC | Reduced | 120.3K | 54.2K | -66.1K |
| Numerai GP LLC | Reduced | 98.0K | 32.9K | -65.0K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 141.7K | 83.4K | -58.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 1.2M | 1.1M | -57.4K |
| Trexquant Investment LP | Reduced | 174.1K | 117.5K | -56.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 41.7K | 96.5K | +54.8K |
| CITIGROUP INC | Increased | 6.8K | 61.1K | +54.3K |
| UBS Group AG | Reduced | 188.7K | 135.1K | -53.6K |
| Engineers Gate Manager LP | Reduced | 63.0K | 12.3K | -50.8K |
| First Eagle Investment Management, LLC | Sold Out | 40.0K | 0 | -40.0K |
| GSA CAPITAL PARTNERS LLP | Reduced | 55.3K | 16.9K | -38.3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 40.0K | 1.9K | -38.1K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 628.7K | 658.9K | +30.2K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 105.3K | 76.0K | -29.2K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 29.0K | +29.0K |
| WINTON GROUP Ltd | Reduced | 60.9K | 34.9K | -26.0K |
| PDT Partners, LLC | Sold Out | 25.4K | 0 | -25.4K |
| New Age Alpha Advisors, LLC | New | 0 | 25.0K | +25.0K |
| Russell Investments Group, Ltd. | Increased | 34.1K | 55.8K | +21.8K |
| Jump Financial, LLC | Reduced | 41.5K | 19.8K | -21.7K |
| Marex Group plc | New | 0 | 21.5K | +21.5K |
| Dynamic Technology Lab Private Ltd | New | 0 | 21.4K | +21.4K |
| WEDGE CAPITAL MANAGEMENT L L P/NC | Reduced | 112.6K | 91.4K | -21.1K |
| MORGAN STANLEY | Increased | 196.9K | 217.2K | +20.3K |
| DRW Securities, LLC | Sold Out | 20.2K | 0 | -20.2K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.1M | 1.1M | +19.7K |
| HighTower Advisors, LLC | Sold Out | 19.5K | 0 | -19.5K |
| Walleye Trading LLC | New | 0 | 19.0K | +19.0K |
| BANK OF AMERICA CORP /DE/ | Increased | 127.7K | 145.2K | +17.6K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 420.4K | 403.2K | -17.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.