DaveManuel.com · Institutional Ownership · Who Owns It
ALPHA & OMEGA SEMICONDUCTOR (AOSL)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
217
Reporting holders
$1.2B
Reported value
75.5%
Of shares outstanding
4.2%
Calls
2.7%
Puts
+35
Holder change
Institutions report 22,849,057 shares against 30,259,255 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $201.5M | 4,256,528 | 0.00% | 8q | +9.0%+$16.6M |
| STATE STREET CORP | $111.1M | 2,347,448 | 0.00% | 31q | +67.5%+$44.8M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $65.1M | 1,375,083 | 0.05% | 29q | -12.7%-$9.4M |
| DIMENSIONAL FUND ADVISORS LP | $63.2M | 1,335,089 | 0.01% | 31q | -14.6%-$10.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $52.6M | 1,111,480 | 0.00% | 2q | -4.9%-$2.7M |
| VANGUARD CAPITAL MANAGEMENT LLC | $50.7M | 1,070,895 | 0.00% | 2q | +1.9%+$930.7K |
| JANE STREET GROUP, LLC | $46.4M incl. $35.3M options CALL+PUT | 234,335 | 0.00% | 11q | HELD |
| TWO SIGMA INVESTMENTS, LP | $45.0M | 951,576 | 0.03% | 8q | +72.1%+$18.9M |
| FMR LLC | $37.5M | 791,715 | 0.00% | 31q | +45.3%+$11.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $31.2M | 658,902 | 0.00% | 31q | +4.8%+$1.4M |
| Connor, Clark & Lunn Investment Management Ltd. | $30.1M | 636,893 | 0.06% | 13q | +89.1%+$14.2M |
| WEBER CAPITAL MANAGEMENT LLC /ADV | $25.5M | 538,437 | 21.69% | 3q | -0.7%-$183.2K |
| CITADEL ADVISORS LLC | $22.5M incl. $20.7M options CALL+PUT | 39,368 | 0.00% | 23q | +8.1%+$1.7M |
| WELLINGTON MANAGEMENT GROUP LLP | $19.5M | 412,910 | 0.00% | 13q | -40.6%-$13.3M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $19.1M | 403,197 | 0.00% | 31q | -4.1%-$815.5K |
| ACADIAN ASSET MANAGEMENT LLC | $15.3M | 323,866 | 0.02% | 5q | +53.8%+$5.4M |
| MILLENNIUM MANAGEMENT LLC | $15.0M incl. $2.4M options CALL | 267,648 | 0.01% | 5q | +35.3%+$3.9M |
| ROYCE & ASSOCIATES LP | $14.6M | 309,015 | 0.12% | 31q | -40.4%-$9.9M |
| D. E. Shaw & Co., Inc. | $13.5M | 284,225 | 0.01% | 3q | +1.7%+$219.5K |
| GOLDMAN SACHS GROUP INC | $13.2M | 279,113 | 0.00% | 28q | +4.3%+$541.0K |
| NORTHERN TRUST CORP | $12.4M | 261,018 | 0.00% | 31q | +5.8%+$673.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $12.0M incl. $7.4M options CALL+PUT | 96,522 | 0.00% | 24q | +131.3%+$6.8M |
| MORGAN STANLEY | $10.3M | 217,176 | 0.00% | 35q | +10.3%+$959.9K |
| Invesco Ltd. | $9.8M | 207,842 | 0.00% | 31q | -44.7%-$7.9M |
| Apis Capital Advisors, LLC | $9.8M | 206,280 | 0.95% | new | NEW |
| CONGRESS ASSET MANAGEMENT CO | $9.6M | 203,460 | 0.06% | new | NEW |
| PANAGORA ASSET MANAGEMENT INC | $9.2M | 194,356 | 0.03% | 2q | +230.6%+$6.4M |
| IMC-Chicago, LLC | $8.1M incl. $3.4M options CALL+PUT | 99,791 | 0.00% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $7.7M | 163,428 | 0.00% | 2q | HELD |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $7.6M | 160,918 | 0.03% | 3q | -54.5%-$9.1M |
| T. Rowe Price Investment Management, Inc. | $7.3M | 153,998 | 0.00% | new | NEW |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $7.1M | 149,537 | 0.12% | 31q | +6.6%+$435.7K |
| BANK OF AMERICA CORP /DE/ | $6.9M | 145,243 | 0.00% | 31q | +13.7%+$830.7K |
| TUDOR INVESTMENT CORP ET AL | $6.8M | 144,312 | 0.01% | 5q | +107.5%+$3.5M |
| Bank of New York Mellon Corp | $6.7M | 141,445 | 0.00% | 31q | +1.4%+$90.4K |
| UBS Group AG | $6.4M | 135,116 | 0.00% | 31q | -28.4%-$2.5M |
| CITIGROUP INC | $6.3M incl. $3.4M options CALL+PUT | 61,099 | 0.00% | 31q | +802.6%+$5.6M |
| Empowered Funds, LLC | $6.1M | 129,537 | 0.03% | 4q | +7.7%+$435.7K |
| PRINCIPAL FINANCIAL GROUP INC | $5.7M | 120,056 | 0.00% | 19q | HELD |
| Trexquant Investment LP | $5.6M | 117,474 | 0.03% | 4q | -32.5%-$2.7M |
| JPMORGAN CHASE & CO | $5.0M | 109,566 | 0.00% | 31q | -68.2%-$10.6M |
| GROUP ONE TRADING LLC | $4.9M CALL+PUT | options only | 0.01% | 2q | OPTIONS |
| WEDGE CAPITAL MANAGEMENT L L P/NC | $4.3M | 91,440 | 0.07% | 2q | -18.8%-$999.3K |
| Public Sector Pension Investment Board | $4.0M | 85,371 | 0.01% | 17q | -3.4%-$142.7K |
| AQR CAPITAL MANAGEMENT LLC | $3.9M | 83,433 | 0.00% | 6q | -41.1%-$2.8M |
| BNP PARIBAS FINANCIAL MARKETS | $3.6M | 76,044 | 0.00% | 31q | -27.8%-$1.4M |
| RHUMBLINE ADVISERS | $2.9M | 61,676 | 0.00% | 31q | -14.4%-$490.8K |
| AMERICAN CENTURY COMPANIES INC | $2.9M | 61,255 | 0.00% | 23q | +5.0%+$138.7K |
| Nuveen, LLC | $2.6M | 55,668 | 0.00% | 6q | +15.0%+$343.2K |
| Russell Investments Group, Ltd. | $2.6M | 55,849 | 0.00% | 28q | +63.9%+$1.0M |
| ALGERT GLOBAL LLC | $2.6M | 54,200 | 0.03% | 5q | -55.0%-$3.1M |
| Legal & General Group Plc | $2.6M | 54,126 | 0.00% | 31q | -4.7%-$126.8K |
| DEUTSCHE BANK AG\ | $2.5M | 52,853 | 0.00% | 34q | +6.7%+$156.7K |
| Swiss National Bank | $2.3M | 49,300 | 0.00% | 21q | -2.2%-$52.1K |
| AMERIPRISE FINANCIAL INC | $2.2M | 47,029 | 0.00% | 19q | -12.8%-$326.7K |
| SIMPLEX TRADING, LLC | $2.1M incl. $1.9M options CALL+PUT | 5,452 | 0.00% | 24q | +8.6%+$169.3K |
| FRANKLIN RESOURCES INC | $1.9M | 40,523 | 0.00% | 15q | -28.1%-$748.3K |
| PRICE T ROWE ASSOCIATES INC /MD/ | $1.9M | 39,104 | 0.00% | 21q | +19.1%+$297.3K |
| XTX Topco Ltd | $1.8M | 37,562 | 0.02% | 3q | +63.8%+$692.3K |
| Quantinno Capital Management LP | $1.7M | 36,440 | 0.00% | 5q | -2.2%-$38.2K |
| WINTON GROUP Ltd | $1.7M | 34,889 | 0.05% | 12q | -42.7%-$1.2M |
| Numerai GP LLC | $1.6M | 32,941 | 0.13% | 5q | -66.4%-$3.1M |
| Mork Capital Management, LLC | $1.4M | 30,000 | 0.91% | 31q | -33.3%-$710.0K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $1.4M | 29,005 | 0.00% | new | NEW |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $1.3M | 27,820 | 0.00% | 31q | +17.0%+$191.0K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $1.3M | 26,638 | 0.00% | 3q | -3.8%-$50.3K |
| New Age Alpha Advisors, LLC | $1.2M | 24,986 | 0.05% | new | NEW |
| Counterpoint Mutual Funds LLC | $1.2M | 24,712 | 0.12% | 2q | -37.6%-$703.7K |
| RAYMOND JAMES FINANCIAL INC | $1.1M | 23,317 | 0.00% | 7q | -2.1%-$23.6K |
| Y-Intercept (Hong Kong) Ltd | $1.1M | 22,218 | 0.02% | 2q | -37.2%-$622.5K |
| Marex Group Ltd | $1.0M | 21,500 | 0.00% | new | NEW |
| Dynamic Technology Lab Private Ltd | $1.0M | 21,440 | 0.23% | new | NEW |
| WELLS FARGO & COMPANY/MN | $1.0M | 21,414 | 0.00% | 31q | +112.6%+$536.8K |
| Creative Planning | $999.0K | 21,107 | 0.00% | 2q | +32.5%+$245.3K |
| NATIXIS | $946.6K | 20,000 | 0.00% | 3q | HELD |
| Jump Financial, LLC | $937.1K | 19,800 | 0.01% | 2q | -52.3%-$1.0M |
| Walleye Trading LLC | $907.7K incl. $9.5K options CALL | 18,979 | 0.00% | new | NEW |
| NEUBERGER BERMAN GROUP LLC | $902.3K | 19,063 | 0.00% | 2q | HELD |
| GSA CAPITAL PARTNERS LLP | $801.0K | 16,925 | 0.05% | 4q | -69.4%-$1.8M |
| Brevan Howard Capital Management LP | $780.1K | 16,483 | 0.01% | 2q | -14.0%-$127.2K |
| Thrivent Financial for Lutherans | $772.0K | 16,313 | 0.00% | 17q | -1.1%-$8.3K |
| ALLIANCEBERNSTEIN L.P. | $746.7K | 33,698 | 0.00% | 31q | +64.4%+$292.5K |
| VANGUARD ASSET MANAGEMENT, Ltd | $734.7K | 15,523 | 0.00% | 2q | HELD |
| Illinois Municipal Retirement Fund | $726.9K | 15,358 | 0.01% | 12q | +24.0%+$140.8K |
| Arosa Capital Management LP | $710.0K | 15,000 | 0.13% | 3q | -50.0%-$710.0K |
| Capelight Capital Asset Management LP | $710.0K | 15,000 | 0.34% | new | NEW |
| MetLife Investment Management, LLC | $684.4K | 14,460 | 0.00% | 11q | +1.0%+$6.8K |
| Jupiter Topco LLC | $637.9K | 13,485 | 0.00% | new | FIRST |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $626.3K | 13,232 | 0.00% | 19q | +56.7%+$226.6K |
| DIVERSIFIED TRUST CO | $611.1K | 12,912 | 0.01% | new | NEW |
| Engineers Gate Manager LP | $579.8K | 12,250 | 0.01% | 5q | -80.6%-$2.4M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $539.1K | 11,391 | 0.00% | 9q | -4.5%-$25.2K |
| Vanguard Global Advisers, LLC | $530.5K | 11,209 | 0.00% | 2q | -46.7%-$464.5K |
| Louisiana State Employees Retirement System | $515.9K | 10,900 | 0.01% | 17q | -0.9%-$4.7K |
| NATIXIS ADVISORS, LLC | $486.0K | 10,275 | 0.00% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $477.8K | 10,096 | 0.00% | 31q | +29.5%+$108.9K |
| State of Alaska, Department of Revenue | $447.0K | 9,450 | 0.00% | 17q | -29.7%-$188.7K |
| SEI INVESTMENTS CO | $424.3K | 8,964 | 0.00% | 19q | -89.3%-$3.5M |
| Jain Global LLC | $409.8K | 8,658 | 0.00% | new | NEW |
| Overbrook Management Corp | $393.0K | 8,304 | 0.06% | new | NEW |
Showing the largest 100 of 217 reported holders.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | Xue Bing | EVP-WW Sales & Bus Development | Sold | 4,916 | $231.5K |
| 2026-05-18 | Xue Bing | EVP-WW Sales & Bus Development | Sold | 4,916 | $201.6K |
| 2026-05-22 | Chen Claudia | Director | Sold | 4,061 | $160.5K ×2 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 41 | $28.8M | 1,048,609 | 7 | 14 | 9 | 0.0% |
| Q2 2026 | 217 | $1.2B | 22,849,057 | 63 | 58 | 65 | 6.9% |
| Q1 2026 | 182 | $495.7M | 22,141,071 | 28 | 60 | 52 | 1.1% |
| Q4 2025 | 168 | $447.5M | 22,419,306 | 25 | 56 | 55 | 0.7% |
| Q3 2025 | 188 | $627.9M | 22,298,021 | 35 | 61 | 44 | 0.7% |
| Q2 2025 | 168 | $563.3M | 21,722,732 | 31 | 69 | 33 | 1.0% |
| Q1 2025 | 157 | $574.3M | 22,709,804 | 20 | 45 | 59 | 1.7% |
| Q4 2024 | 180 | $773.3M | 20,548,841 | 33 | 59 | 49 | 1.7% |
| Q3 2024 | 175 | $734.7M | 19,606,057 | 38 | 51 | 53 | 1.0% |
| Q2 2024 | 168 | $736.3M | 19,493,534 | 51 | 46 | 48 | 1.1% |
| Q1 2024 | 142 | $435.3M | 19,659,986 | 17 | 53 | 44 | 0.5% |
| Q4 2023 | 143 | $484.9M | 18,573,917 | 16 | 55 | 41 | 0.4% |
| Q3 2023 | 141 | $524.5M | 17,495,770 | 9 | 48 | 49 | 0.7% |
| Q2 2023 | 146 | $581.6M | 17,411,734 | 17 | 48 | 49 | 1.8% |
| Q1 2023 | 147 | $498.0M | 18,132,887 | 11 | 49 | 51 | 2.0% |
| Q4 2022 | 164 | $513.5M | 17,835,451 | 19 | 48 | 62 | 0.9% |
| Q3 2022 | 162 | $613.3M | 19,580,595 | 21 | 61 | 51 | 1.8% |
| Q2 2022 | 180 | $648.0M | 19,149,498 | 32 | 66 | 54 | 1.4% |
| Q1 2022 | 203 | $966.0M | 16,887,851 | 55 | 59 | 68 | 4.6% |
| Q4 2021 | 174 | $1.4B | 22,354,296 | 50 | 41 | 50 | 2.2% |
| Q3 2021 | 130 | $701.1M | 22,101,872 | 22 | 46 | 45 | 1.2% |
| Q2 2021 | 125 | $468.8M | 15,217,964 | 25 | 49 | 29 | 1.3% |
| Q1 2021 | 124 | $719.6M | 21,876,774 | 33 | 36 | 45 | 0.6% |
| Q4 2020 | 97 | $515.9M | 21,737,664 | 23 | 32 | 26 | 0.4% |
| Q3 2020 | 79 | $274.4M | 21,391,886 | 14 | 15 | 35 | 0.0% |
| Q2 2020 | 70 | $239.0M | 21,898,915 | 11 | 23 | 25 | 0.3% |
| Q1 2020 | 75 | $100.3M | 15,435,499 | 5 | 23 | 32 | 1.3% |
| Q4 2019 | 82 | $295.0M | 21,465,772 | 12 | 34 | 24 | 0.9% |
| Q3 2019 | 82 | $556.9M | 45,333,665 | 17 | 21 | 26 | 0.0% |
| Q2 2019 | 73 | $403.9M | 43,253,154 | 7 | 21 | 30 | 0.0% |
| Q1 2019 | 81 | $760.3M | 66,055,496 | 9 | 17 | 35 | 0.0% |
| Q4 2018 | 84 | $803.6M | 78,857,180 | 2 | 2 | 1 | 0.0% |