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Disclosery

AOSL ALPHA & OMEGA SEMICONDUCTOR

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SHS (common), issuer CIK 1387467

164 managers (168 13F filers) reported a position in AOSL shares at 2025-12-31, 22,419,308 shares in all. 24 filers opened a position and 44 filers sold out during the quarter.

Managers
164
13F filers
168
New
24
Added
61
Reduced
57
Sold out
44
Shares held by filers
22,419,308

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.3,908,891$77.4M<0.01%+63,59613F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,424,320$48M<0.01%-29,65513F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …1,628,634$32.3M0.03%+73,63113F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,584,028$31.4M0.01%-103,63813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,474,175$29.2M<0.01%+262,11713F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…1,025,953$20.3M<0.01%+160,98813F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp689,143$13.7M0.01%-97,48713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC611,089$12.1M<0.01%+3,61213F-HRTimelineGroup
WEBER CAPITAL MANAGEMENT LLC /ADV547,308$10.8M10.24%13F-HRTimeline
FMR LLCin group FMR LLC515,095$10.2M<0.01%+5113F-HRTimelineGroup
ROYCE & ASSOCIATES LP474,015$9.39M0.1%+46,66213F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding467,117$9.25M+209,797Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC447,020$8.86M<0.01%+76,67013F-HR/ATimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co393,773$7.8M<0.01%+49,17213F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.381,767$7.56M<0.01%+63,13413F-HRTimelineGroup
GAGNON SECURITIES LLCgroup of 2 filers holding335,838$6.65M+293Timeline
UBS Group AGgroup of 2 filers holding255,660$5.06M+150,665Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO237,563$4.71M<0.01%+78,71913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP235,866$4.67M<0.01%-16,01313F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY228,233$4.52M<0.01%-34,58313F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/221,299$4.38M<0.01%+42,00213F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…205,775$4.08M<0.01%+15,55413F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…204,511$4.05M0.01%+91,83913F-HRTimeline
PEREGRINE CAPITAL MANAGEMENT LLC177,422$3.51M0.11%-44,65213F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.160,588$3.18M<0.01%new13F-HRTimelineGroup
Uniplan Investment Counsel, Inc.159,947$3.17M0.32%-56813F-HR/ATimeline
Trexquant Investment LP151,630$3M0.03%+133,66113F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp145,308$2.88M<0.01%-1,34013F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd137,265$2.72M0.09%+89,91413F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC133,503$2.64M<0.01%+88,84513F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC129,541$2.57M0.05%+56,55813F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding126,985$2.52M+16,306Timeline
JACOBS LEVY EQUITY MANAGEMENT, INC124,751$2.47M0.01%new13F-HRTimeline
Numerai GP LLC120,155$2.38M0.29%+30,46013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC118,897$2.36M<0.01%-42613F-HRTimelineGroup
Empowered Funds, LLC109,541$2.17M0.04%+56,55813F-HR/ATimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC108,818$2.16M<0.01%new13F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC108,202$2.14M<0.01%new13F-HRTimelineGroup
Public Sector Pension Investment Board86,383$1.71M0.01%-9,97913F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO83,618$1.66M<0.01%-19,45413F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC82,032$1.63M<0.01%+21,93513F-HRTimelineGroup
SG Americas Securities, LLC78,548$1.56M<0.01%-48,72813F-HRTimeline
Verition Fund Management LLC75,837$1.5M0.01%-5,67613F-HRTimeline
RHUMBLINE ADVISERS71,012$1.41M<0.01%-2,46213F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc65,559$1.3M<0.01%+51913F-HRTimelineGroup
ALGERT GLOBAL LLC63,980$1.27M0.02%+66113F-HR/ATimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC59,983$1.19M<0.01%-577,89313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC58,911$1.17M<0.01%-5,39113F-HRTimelineGroup
Swiss National Bank50,400$998K<0.01%+1,30013F-HRTimeline
Nuveen, LLCin group TIAA48,149$954K<0.01%013F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC47,891$949K0.01%new13F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\47,059$932K<0.01%+84413F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC45,801$907K<0.01%-1,30313F-HRTimelineGroup
Engineers Gate Manager LP45,654$904K0.01%+17,97413F-HRTimeline
Mork Capital Management, LLC45,000$891K0.54%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC42,576$843K<0.01%-40,02113F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD39,768$788K<0.01%-17,15313F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd37,263$738K0.02%new13F-HRTimelineGroup
Quantbot Technologies LP35,944$712K0.02%+24,71013F-HRTimeline
Quantinno Capital Management LP32,333$641K<0.01%+13,14213F-HRTimeline
Arosa Capital Management LP30,000$594K0.38%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN29,571$586K<0.01%+8,88713F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…28,439$563K<0.01%new13F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/27,858$552K<0.01%+1,22213F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…25,763$510K<0.01%+2,78713F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC24,386$483K<0.01%+8513F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.23,300$462K<0.01%-8,79013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC22,178$439K<0.01%-8,43413F-HRTimelineGroup
PDT Partners, LLC21,287$422K0.03%013F-HRTimeline
AXQ CAPITAL, LP20,511$406K0.09%new13F-HRTimeline
Aquatic Capital Management LLC20,300$402K0.01%new13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources20,281$402K<0.01%+1,05313F-HRTimelineGroup
NATIXISin group Natixis Investment Managers20,000$396K<0.01%new13F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP17,675$350K0.03%-18,50613F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…17,144$340K<0.01%-67613F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC11,926$335K<0.01%+11513F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC16,480$326K0.02%new13F-HRTimeline
TUDOR INVESTMENT CORP ET AL15,401$305K<0.01%+4,48813F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC14,476$287K<0.01%+1,52313F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…14,317$284K<0.01%013F-HRTimelineGroup
Redwood Wealth Management Group, LLC14,076$279K0.12%-5,66513F-HRTimeline
State of Alaska, Department of Revenue13,973$276K<0.01%+27513F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson13,485$267K<0.01%013F-HRTimelineGroup
Dynamic Technology Lab Private Ltd12,515$248K0.06%new13F-HRTimeline
Illinois Municipal Retirement Fund12,260$243K<0.01%-59413F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,652$231K<0.01%-7513F-HRTimelineGroup
Louisiana State Employees Retirement Sy…11,400$226K<0.01%013F-HRTimeline
Summit Global Investmentsin group Summit Global Investments11,238$223K0.01%new13F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC10,500$208K<0.01%new13F-HRTimeline
Caprock Group, LLC10,373$205K<0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC9,056$179K0.01%+7,89713F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA8,938$177K<0.01%+75513F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC8,717$173K<0.01%-3,05613F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…7,926$157K<0.01%+3,51913F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND7,796$154K<0.01%013F-HRTimeline
AMALGAMATED BANK7,210$143K<0.01%+3713F-HRTimeline
Police & Firemen's Retirement System of…6,827$135K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS6,193$123K<0.01%+7013F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…6,048$120K<0.01%-77613F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND5,756$114K<0.01%+19613F-HRTimeline
State of Tennessee, Department of Treas…5,076$112K<0.01%-40113F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…5,528$110K<0.01%-90913F-HRTimeline
KLP KAPITALFORVALTNING AS5,500$109K<0.01%+1,00013F-HRTimeline
EASTERN BANK4,676$92.6K<0.01%013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD3,100$61.4K<0.01%+30013F-HRTimeline
GAMMA Investing LLC2,501$49.5K<0.01%-1,60813F-HRTimeline
Strengthening Families & Communities, L…2,500$49.5K0.02%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,305$45.7K<0.01%013F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…2,205$43.7K<0.01%013F-HR/ATimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,507$29.9K<0.01%-17613F-HRTimelineGroup
Sterling Capital Management LLC1,437$28.5K<0.01%-29113F-HRTimeline
CWM, LLCin group CWM, LLC1,088$22K<0.01%-1,22613F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.975$19.3K<0.01%new13F-HRTimelineGroup
Versant Capital Management, Inc962$19.1K<0.01%-92613F-HRTimeline
NISA INVESTMENT ADVISORS, LLC906$17.9K<0.01%-20913F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.872$17K<0.01%-16413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
US BANCORP \DE\in group US BANCORP \DE\792$15.7K<0.01%+4113F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…745$14.8K<0.01%-2,30413F-HRTimelineGroup
GROUP ONE TRADING LLC694$13.7K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…659$13.1K<0.01%+9813F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.543$10.8K<0.01%-19013F-HRTimelineGroup
Wilmington Savings Fund Society, FSB500$9.9K<0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …414$8K<0.01%new13F-HRTimelineGroup
Global Retirement Partners, LLC346$6.85K<0.01%013F-HRTimeline
Smartleaf Asset Management LLC301$6.01K<0.01%+29313F-HRTimeline
Allworth Financial LP232$4.6K<0.01%-5713F-HRTimeline
SBI Securities Co., Ltd.223$4.42K<0.01%-5313F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP206$4.08K<0.01%+613F-HRTimelineGroup
City State Bank200$3.96K<0.01%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…182$3.6K<0.01%-7413F-HRTimelineGroup
Arax Advisory Partners166$3.29K<0.01%-63513F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC150$3K<0.01%+7113F-HRTimelineGroup
UMB Bank, n.a.131$2.6K<0.01%-4813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Physician Wealth Advisors, Inc.124$2.46K<0.01%+7313F-HRTimeline
Pinnacle Wealth Planning Services, Inc.107$2.12K<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust101$2K<0.01%+7613F-HRTimeline
SIGNATUREFD, LLC96$1.9K<0.01%-58713F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.70$1.39K<0.01%-6413F-HRTimelineGroup
Quarry LP66$1.31K<0.01%+1913F-HRTimeline
Fortitude Family Office, LLC65$1.29K<0.01%013F-HRTimeline
Blue Trust, Inc.57$1.13K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC54$1.07K<0.01%013F-HRTimeline
Avion Wealth51$1K<0.01%+2813F-HRTimeline
Rachor Investment Advisory Services, LLC47$932<0.01%13F-HRTimeline
Advisors Asset Management, Inc.39$773<0.01%-313F-HR/ATimeline
PICTON MAHONEY ASSET MANAGEMENT32$634<0.01%013F-HRTimeline
BARROW HANLEY MEWHINNEY & STRAUSS LLC28$555<0.01%new13F-HRTimeline
True Wealth Design, LLC28$555<0.01%-3213F-HRTimeline
Bare Financial Services, Inc23$456<0.01%new13F-HRTimeline
Basecamp Wealth Advisors LLC19$376<0.01%13F-HRTimeline
Kilter Group LLC18$357<0.01%new13F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…16$317<0.01%013F-HRTimelineGroup
MassMutual Private Wealth & Trust, FSB14$277<0.01%-9313F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…13$258<0.01%-1813F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…10$198<0.01%-13013F-HR/ATimelineGroup
YANKCOM Partnership10$198<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC9$178<0.01%-613F-HRTimeline
Larson Financial Group LLC8$158<0.01%-10513F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.7$139<0.01%+613F-HRTimelineGroup
HHM Wealth Advisors, LLC6$119<0.01%013F-HRTimeline
Farther Finance Advisors, LLC4$79<0.01%-7513F-HRTimeline
Parallel Advisors, LLC2$40<0.01%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$20<0.01%-15713F-HRTimelineGroup
Covestor Ltd2$00%-1,16413F-HRTimelineValue filed as zero, left out of ratios.