AOSL Institutional Ownership
Who owns ALPHA & OMEGA SEMICONDUCTOR Ltd and what the big funds did with it last quarter, from every SEC 13F filing. 216 funds reported holding AOSL at Jun 30, 2026, together owning 75.5% of the company.
- ▲123 buying vs 89 selling
- ▲Held by funds +2.3 pts
- ▲Funds holding +36
- ▲Superinvestors: 2 added, 1 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 216 | 180 | +20.0% |
| In funds' top 10 | 1 | 1 | 0.0% |
| 13F shares | 22.8M | 22.1M | +3.2% |
| Held by funds | 75.5% | 73.2% | +2.3 pts |
| New positions | 63 | 26 | +142.3% |
| Increased | 60 | 61 | −1.6% |
| Reduced | 64 | 52 | +23.1% |
| Sold out | 25 | 17 | +47.1% |
| Calls (shares) | 54K | 0 | – |
| Puts (shares) | 300 | 0 | – |
| Put/call ratio | 0.01 | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in AOSL
All superinvestors →
Who owns AOSL
share of fund held shares- Index and passive funds52.1%
- Active managers and hedge funds33.1%
- Banks and brokers7.7%
- Pensions, insurers and other7.2%
The top 10 holders own 63.6% of all AOSL shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
53 funds changed their position- Wedge Capital Management L L P/ncAdded+48K sh
- Congress Asset Management CoAdded+43K sh
- Capelight Capital Asset Management LPSold out−15K sh
- Inspire Investing, LLCNew+23K sh
- Creative PlanningAdded+17K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 14.07% | 4.3M | $201M | +352K |
| 2 | State Street Corp | 7.76% | 2.3M | $111M | +946K |
| 3 | Manufacturers Life Insurance Company, the | 4.54% | 1.4M | $65.1M | −199K |
| 4 | Dimensional Fund Advisors LP | 4.41% | 1.3M | $63.2M | −229K |
| 5 | Vanguard Portfolio Management LLC | 3.67% | 1.1M | $52.6M | −57K |
| 6 | Vanguard Capital Management LLC | 3.54% | 1.1M | $50.7M | +20K |
| 7 | Two Sigma Investments, LP | 3.14% | 952K | $45M | +399K |
| 8 | Fmr LLC | 2.62% | 792K | $37.5M | +247K |
| 9 | Geode Capital Management, LLC | 2.18% | 659K | $31.2M | +30K |
| 10 | Connor, Clark & Lunn Investment Management Ltd. | 2.10% | 637K | $30.1M | +300K |
- State Street Corp+946K sh+$44.8M
- Two Sigma Investments, LP+399K sh+$18.9M
- BlackRock, Inc.+352K sh+$16.6M
- Connor, Clark & Lunn Investment Management Ltd.+300K sh+$14.2M
- Fmr LLC+247K sh+$11.7M
- Jane Street Group, LLC+234K sh+$11.1M
- Apis Capital Advisors, LLC+206K sh+$9.8M
- Congress Asset Management Co+203K sh+$9.6M
- Wellington Management Group LLP−282K sh−$13.3M
- Dimensional Fund Advisors LP−229K sh−$10.8M
- Jpmorgan Chase & Co−234K sh−$10.6M
- Royce & Associates LP−209K sh−$9.9M
- Manufacturers Life Insurance Company, the−199K sh−$9.4M
- Jacobs Levy Equity Management, Inc−193K sh−$9.1M
- Invesco Ltd.−168K sh−$7.9M
- Gagnon Securities LLC−168K sh−$3.7M
AOSL institutional ownership FAQ
Who owns the most AOSL stock?
In Q2 2026 13F filings the largest holder of AOSL was BlackRock, Inc., followed by State Street Corp and Manufacturers Life Insurance Company, the. Index fund managers are usually the biggest holders of large companies.
What percentage of AOSL is owned by institutions?
Funds that file 13F reports held 75.5% of AOSL's shares at Jun 30, 2026, compared with 73.2% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying AOSL?
In Q2 2026, 123 funds bought AOSL (63 of them new positions) and 89 sold (25 sold out completely). Among well known investors, 2 added and 1 cut. Our fund sentiment for AOSL is strongly bullish.
What is AOSL's institutional put/call ratio?
Funds reported $14K of AOSL puts against $2.6M of calls, a put/call ratio of 0.01. Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this AOSL ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.