Alpha & Omega SemiconductorAOSL

13F holders, Q4 2025 (December 31)
168holders −17
24new positions
43sold out
6famous investors
$19.82avg. 13F price*

At the end of Q4 2025, 168 institutions reported holding Alpha & Omega Semiconductor (AOSL) in their 13F filings, down 17 from Q3 2025. 24 opened new positions and 43 sold out. The largest holders were BlackRock, Inc. ($77.4M), Vanguard Group Inc. ($48.0M) and Manufacturers Life Insurance Company, The ($32.3M). 6 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Alpha & Omega Semiconductor
CUSIP
G6331P104
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200250 Q1 2024: 141Q1 2024Q2 2024: 166Q2 2024Q3 2024: 173Q3 2024Q4 2024: 177Q4 2024Q1 2025: 156Q1 2025Q2 2025: 164Q2 2025Q3 2025: 185Q3 2025Q4 2025: 168Q4 2025Q1 2026: 180Q1 2026Q2 2026: 216Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions24$15.3M
Exits43$46.3M

All 13F filers, Q3 2025 → Q4 2025: 2,769,050 shares bought and 2,795,396 shares sold, net −26,346 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 168 holders

BlackRock, Inc. 0.00% Add +1.6% 3,908,891 $77.4M
Vanguard Group Inc. 0.00% Reduce -1.2% 2,424,320 $48.0M
Manufacturers Life Insurance Company, The 0.03% Add +4.7% 1,628,634 $32.3M
Dimensional Fund Advisors LP 0.01% Reduce -6.1% 1,584,028 $31.4M
State Street Corp. 0.00% Add +21.6% 1,474,175 $29.2M
Wellington Management Group LLP 0.00% Add +18.6% 1,025,953 $20.3M
Boston Partners 0.01% Reduce -12.4% 689,143 $13.7M
Geode Capital Management, LLC 0.00% Add +0.6% 611,089 $12.1M
Weber Capital Management LLC 10.24% — 547,308 $10.8M
FMR LLC 0.00% Add +0.0% 515,095 $10.2M
Royce & Associates LP 0.10% Add +10.9% 474,015 $9.4M
Goldman Sachs Group Inc. 0.00% Add +20.7% 447,020 $8.9M
Charles Schwab Investment Management Inc. 0.00% Add +14.3% 393,773 $7.8M
Invesco Ltd. 0.00% Add +19.8% 381,767 $7.6M
Two Sigma Investments, LP 0.01% Add +71.3% 278,117 $5.5M
JPMorgan Chase & Co. 0.00% Add +49.6% 237,563 $4.7M
Northern Trust Corp. 0.00% Reduce -6.4% 235,866 $4.7M
Morgan Stanley 0.00% Reduce -13.2% 228,233 $4.5M
Bank of America Corp. 0.00% Add +23.4% 221,299 $4.4M
UBS Group AG 0.00% Add +224.7% 217,121 $4.3M
Gagnon Securities LLC 0.88% Add +0.1% 215,642 $4.3M
Russell Investments Group, Ltd. 0.00% Add +8.2% 205,775 $4.1M
Connor, Clark & Lunn Investment Management Ltd. 0.01% Add +81.5% 204,511 $4.1M
Two Sigma Advisers, LP 0.01% Add +99.0% 189,000 $3.7M
Peregrine Capital Management LLC 0.11% Reduce -20.1% 177,422 $3.5M
D. E. Shaw & Co. 0.00% New 160,588 $3.2M
Uniplan Investment Counsel, Inc. 0.33% Reduce -0.3% 159,947 $3.2M
Trexquant Investment LP 0.03% Add +743.8% 151,630 $3.0M
Bank of New York Mellon Corp 0.00% Reduce -0.9% 145,308 $2.9M
WINTON GROUP Ltd 0.09% Add +189.9% 137,265 $2.7M
Acadian Asset Management LLC 0.00% Add +198.9% 133,503 $2.6M
Bridgeway Capital Management, LLC 0.05% Add +77.5% 129,541 $2.6M
Jacobs Levy Equity Management, Inc. 0.01% New 124,751 $2.5M
Gagnon Advisors, LLC 1.51% No change 120,196 $2.4M
Numerai GP LLC 0.29% Add +34.0% 120,155 $2.4M
Principal Financial Group Inc. 0.00% Reduce -0.4% 118,897 $2.4M
Empowered Funds, LLC 0.04% Add +106.8% 109,541 $2.2M
Citadel Advisors 0.00% New 108,818 $2.2M
Jane Street Group, LLC 0.00% New 108,202 $2.1M
Public Sector Pension Investment Board 0.01% Reduce -10.4% 86,383 $1.7M
Sei Investments Co. 0.00% Reduce -18.9% 83,618 $1.7M
AQR Capital Management 0.00% Add +36.5% 82,032 $1.6M
SG Americas Securities, LLC 0.00% Reduce -38.3% 78,548 $1.6M
Verition Fund Management LLC 0.01% Reduce -7.0% 75,837 $1.5M
Rhumbline Advisers 0.00% Reduce -3.4% 71,012 $1.4M
Susquehanna Portfolio Strategies, LLC 0.02% Reduce -24.9% 66,647 $1.3M
Legal & General Group Plc 0.00% Add +0.8% 65,559 $1.3M
Algert Global LLC 0.02% Add +1.0% 63,980 $1.3M
Susquehanna International Group, LLP 0.00% Add +175.2% 60,338 $1.2M
Millennium Management 0.00% Reduce -90.6% 59,983 $1.2M
American Century Companies Inc. 0.00% Reduce -8.4% 58,911 $1.2M
Swiss National Bank 0.00% Add +2.6% 50,400 $998K
Nuveen, LLC 0.00% No change 48,149 $954K
Walleye Capital LLC 0.01% New 47,891 $949K
Deutsche Bank AG 0.00% Add +1.8% 47,059 $932K
Ameriprise Financial Inc. 0.00% Reduce -2.8% 45,801 $907K
Engineers Gate Manager LP 0.01% Add +64.9% 45,654 $904K
Mork Capital Management, LLC 0.54% No change 45,000 $891K
Barclays PLC 0.00% Reduce -48.5% 42,576 $843K
State of Wisconsin Investment Board 0.00% Reduce -30.1% 39,768 $788K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Add +1.1% 38,539 $763K
XTX Topco Ltd 0.02% New 37,263 $738K
Quantbot Technologies LP 0.02% Add +220.0% 35,944 $712K
Quantinno Capital Management LP 0.00% Add +68.5% 32,333 $641K
Arosa Capital Management LP 0.38% New 30,000 $594K
Wells Fargo & Company 0.00% Add +43.0% 29,571 $586K
Massachusetts Financial Services Co. 0.00% New 28,439 $563K
T. Rowe Price Associates Inc. 0.00% Add +4.6% 27,858 $552K
California State Teachers Retirement System 0.00% Add +12.1% 25,763 $510K
Voya Investment Management LLC 0.00% Add +0.3% 24,386 $483K
Alliancebernstein L.P. 0.00% Reduce -27.4% 23,300 $462K
Raymond James Financial Inc. 0.00% Reduce -27.6% 22,178 $439K
PDT Partners, LLC 0.03% No change 21,287 $422K
Axq Capital, LP 0.09% New 20,511 $406K
Aquatic Capital Management LLC 0.01% New 20,300 $402K
Franklin Resources Inc. 0.00% Add +5.5% 20,281 $402K
Natixis 0.00% New 20,000 $396K
Gsa Capital Partners LLP 0.03% Reduce -51.1% 17,675 $350K
Thrivent Financial for Lutherans 0.00% Reduce -3.8% 17,144 $340K
Los Angeles Capital Management LLC 0.00% Add +1.0% 11,926 $335K
Prelude Capital Management, LLC 0.02% New 16,480 $326K
Tudor Investment Corporation 0.00% Add +41.1% 15,401 $305K
Intech Investment Management LLC 0.00% Add +11.8% 14,476 $287K
MetLife Investment Management, LLC 0.00% No change 14,317 $284K
Redwood Wealth Management Group, LLC 0.12% Reduce -28.7% 14,076 $279K
State of Alaska, Department of Revenue 0.00% Add +2.0% 13,973 $276K
Janus Henderson Group PLC 0.00% No change 13,485 $267K
Dynamic Technology Lab Private Ltd 0.06% New 12,515 $248K
Illinois Municipal Retirement Fund 0.00% Reduce -4.6% 12,260 $243K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -0.6% 11,652 $231K
Louisiana State Employees Retirement System 0.00% No change 11,400 $226K
Summit Global Investments 0.01% New 11,238 $223K
Renaissance Technologies 0.00% New 10,500 $208K
Caprock Group, LLC 0.00% New 10,373 $205K
Simplex Trading, LLC 0.01% Add +681.4% 9,056 $179K
Royal Bank of Canada 0.00% Add +9.2% 8,938 $177K
Citigroup Inc. 0.00% Reduce -26.0% 8,717 $173K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +79.8% 7,926 $157K
New York State Common Retirement Fund 0.00% No change 7,796 $154K
Amalgamated Bank 0.00% Add +0.5% 7,210 $143K
Police & Firemen's Retirement System of New Jersey 0.00% No change 6,827 $135K
BNP Paribas Financial Markets 0.00% Add +1.1% 6,193 $123K
Teachers Retirement System of the State of Kentucky 0.00% Reduce -11.4% 6,048 $120K
Oregon Public Employees Retirement Fund 0.00% Add +3.5% 5,756 $114K
State of Tennessee, Department of Treasury 0.00% Reduce -7.3% 5,076 $112K
New York State Teachers Retirement System 0.00% Reduce -14.1% 5,528 $110K
KLP Kapitalforvaltning As 0.00% Add +22.2% 5,500 $109K
Eastern Bank 0.00% No change 4,676 $93K
Canada Pension Plan Investment Board 0.00% Add +10.7% 3,100 $61K
GAMMA Investing LLC 0.00% Reduce -39.1% 2,501 $50K
Strengthening Families & Communities, LLC 0.02% No change 2,500 $50K
Ameritas Investment Partners, Inc. 0.00% No change 2,305 $46K
Northwestern Mutual Wealth Management Co. 0.00% No change 2,205 $44K
PNC Financial Services Group, Inc. 0.00% Reduce -10.5% 1,507 $30K
Sterling Capital Management LLC 0.00% Reduce -16.8% 1,437 $28K
Cwm, LLC 0.00% Reduce -53.0% 1,088 $22K
Federated Hermes, Inc. 0.00% New 975 $19K
Versant Capital Management, Inc 0.00% Reduce -49.0% 962 $19K
Nisa Investment Advisors, LLC 0.00% Reduce -18.7% 906 $18K
Hantz Financial Services, Inc. 0.00% Reduce -15.8% 872 $17K
US Bancorp \de 0.00% Add +5.5% 792 $16K
Tower Research Capital LLC (TRC) 0.00% Reduce -75.6% 745 $15K
Group One Trading LLC 0.00% New 694 $14K
Public Employees Retirement System of Ohio 0.00% Add +17.5% 659 $13K
Osaic Holdings, Inc. 0.00% Reduce -25.9% 543 $11K
Wilmington Savings Fund Society, FSB 0.00% No change 500 $10K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% New 414 $8K
Global Retirement Partners, LLC 0.00% No change 346 $7K
Smartleaf Asset Management LLC 0.00% Add +3662.5% 301 $6K
Allworth Financial LP 0.00% Reduce -19.7% 232 $5K
SBI Securities Co., Ltd. 0.00% Reduce -19.2% 223 $4K
Jones Financial Companies LLLP 0.00% Add +3.0% 206 $4K
City State Bank 0.00% No change 200 $4K
Fifth Third Bancorp 0.00% Reduce -28.9% 182 $4K
Arax Advisory Partners 0.00% Reduce -79.3% 166 $3K
Bessemer Group Inc. 0.00% Add +89.9% 150 $3K
UMB Bank, n.a. 0.00% Reduce -26.8% 131 $3K
Physician Wealth Advisors, Inc. 0.00% Add +143.1% 124 $2K
Pinnacle Wealth Planning Services, Inc. 0.00% New 107 $2K
Parkside Financial Bank & Trust 0.00% Add +304.0% 101 $2K
Signaturefd, LLC 0.00% Reduce -85.9% 96 $2K
Optiver Holding B.V. 0.00% Reduce -47.8% 70 $1K
Quarry LP 0.00% Add +40.4% 66 $1K
Fortitude Family Office, LLC 0.00% No change 65 $1K
Blue Trust, Inc. 0.00% No change 57 $1K
Quadrant Capital Group LLC 0.00% No change 54 $1K
Avion Wealth 0.00% Add +121.7% 51 $1K
Rachor Investment Advisory Services, LLC 0.00% — 47 $932
Advisors Asset Management, Inc. 0.00% Reduce -7.1% 39 $773
Picton Mahoney Asset Management 0.00% No change 32 $634
True Wealth Design, LLC 0.00% Reduce -53.3% 28 $555
Barrow Hanley Mewhinney & Strauss LLC 0.00% New 28 $555
Bare Financial Services, Inc 0.00% New 23 $456
Basecamp Wealth Advisors LLC 0.00% — 19 $376
Kilter Group LLC 0.00% New 18 $357
Farmers & Merchants Investments Inc. 0.00% No change 16 $317
MassMutual Private Wealth & Trust, FSB 0.00% Reduce -86.9% 14 $277
EverSource Wealth Advisors, LLC 0.00% Reduce -58.1% 13 $258
YANKCOM Partnership 0.00% New 10 $198
Rockefeller Capital Management L.P. 0.00% Reduce -92.9% 10 $198
Rothschild Investment LLC 0.00% Reduce -40.0% 9 $178
Larson Financial Group LLC 0.00% Reduce -92.9% 8 $158
CIBC Private Wealth Group LLC 0.00% Add +600.0% 7 $139
HHM Wealth Advisors, LLC 0.00% No change 6 $119
Farther Finance Advisors, LLC 0.00% Reduce -94.9% 4 $79
Parallel Advisors, LLC 0.00% No change 2 $40
Huntington National Bank 0.00% Reduce -99.4% 1 $20
Covestor Ltd 0.00% Reduce -99.8% 2 $0

"% of holder's portfolio" is AOSL's weight in each manager's 13F, not the share of Alpha & Omega Semiconductor the manager owns.