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Disclosery

AOSL ALPHA & OMEGA SEMICONDUCTOR

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SHS (common), issuer CIK 1387467

172 managers (180 13F filers) reported a position in AOSL shares at 2026-03-31, 22,141,073 shares in all. 26 filers opened a position and 17 filers sold out during the quarter.

Managers
172
13F filers
180
New
26
Added
61
Reduced
52
Sold out
17
Shares held by filers
22,141,073

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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.3,904,776$86.5M<0.01%-4,11513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding2,426,000$53.8MnewTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …1,574,462$34.9M0.03%-54,17213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,563,871$34.7M0.01%-20,15713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,401,550$31.1M<0.01%-72,62513F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…694,808$15.4M<0.01%-331,14513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC628,668$13.9M<0.01%+17,57913F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP553,011$12.3M0.01%+274,89413F-HRTimelineGroup
FMR LLCin group FMR LLC544,709$12.1M<0.01%+29,61413F-HRTimelineGroup
WEBER CAPITAL MANAGEMENT LLC /ADV542,308$12M12%-5,00013F-HRTimeline
ROYCE & ASSOCIATES LP518,115$11.5M0.11%+44,10013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co420,427$9.32M<0.01%+26,65413F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.375,773$8.33M<0.01%-5,99413F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC353,914$7.84M0.03%+229,16313F-HRTimeline
Connor, Clark & Lunn Investment Managem…336,716$7.46M0.02%+132,20513F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO344,032$7.17M<0.01%+106,46913F-HR/ATimelineGroup
GAGNON SECURITIES LLCgroup of 2 filers holding288,070$6.38M-47,768Timeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.279,588$6.2M<0.01%+119,00013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC267,682$5.93M<0.01%-179,33813F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP246,790$5.47M<0.01%+10,92413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding228,773$5.07M-26,887Timeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC210,640$4.66M0.01%+77,13713F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC197,782$4.38M<0.01%+137,79913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY196,895$4.36M<0.01%-31,33813F-HRTimelineGroup
Trexquant Investment LP174,100$3.86M0.03%+22,47013F-HRTimeline
PEREGRINE CAPITAL MANAGEMENT LLC161,821$3.59M0.13%-15,60113F-HRTimeline
Uniplan Investment Counsel, Inc.150,154$3.33M0.34%-9,79313F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC141,657$3.14M<0.01%+59,62513F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC140,331$3.11M0.06%+10,79013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp139,534$3.09M<0.01%-5,77413F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.129,287$2.87M<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/127,692$2.83M<0.01%-93,60713F-HRTimelineGroup
ALGERT GLOBAL LLC120,340$2.67M0.04%+56,36013F-HR/ATimeline
Empowered Funds, LLC120,331$2.67M0.02%+10,79013F-HR/ATimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC120,075$2.66M<0.01%+1,17813F-HRTimelineGroup
WEDGE CAPITAL MANAGEMENT L L P/NC112,554$2.49M0.05%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding108,382$2.4M-18,603Timeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS105,266$2.33M<0.01%+99,07313F-HRTimelineGroup
Numerai GP LLC97,974$2.17M0.22%-22,18113F-HRTimeline
Public Sector Pension Investment Board88,387$1.96M0.01%+2,00413F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO83,834$1.86M<0.01%+21613F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD78,503$1.74M<0.01%+38,73513F-HRTimeline
SG Americas Securities, LLC72,458$1.61M<0.01%-6,09013F-HRTimeline
RHUMBLINE ADVISERS72,045$1.6M<0.01%+1,03313F-HRTimeline
TUDOR INVESTMENT CORP ET AL69,550$1.54M0.01%+54,14913F-HRTimeline
Engineers Gate Manager LP63,034$1.4M0.02%+17,38013F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd60,932$1.35M0.05%-76,33313F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC58,785$1.3M<0.01%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC58,325$1.29M<0.01%-58613F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc56,806$1.26M<0.01%-8,75313F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources56,334$1.25M<0.01%+36,05313F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP55,270$1.23M0.08%+37,59513F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC53,932$1.2M<0.01%+8,13113F-HR/ATimelineGroup
Swiss National Bank50,400$1.12M<0.01%013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\49,542$1.1M<0.01%+2,48313F-HRTimelineGroup
Nuveen, LLCin group TIAA48,417$1.07M<0.01%+26813F-HRTimelineGroup
Mork Capital Management, LLC45,000$997K0.71%013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC41,500$920K0.01%new13F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…40,000$886K<0.01%new13F-HR/ATimelineGroup
Counterpoint Mutual Funds LLC39,579$877K0.13%new13F-HRTimeline
Quantinno Capital Management LP37,248$825K<0.01%+4,91513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC36,434$807K<0.01%-72,38413F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd35,370$784K0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…34,080$755K<0.01%-171,69513F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/32,823$728K<0.01%+4,96513F-HRTimeline
Arosa Capital Management LP30,000$665K0.43%013F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…27,700$614K<0.01%-73913F-HRTimelineGroup
PDT Partners, LLC25,375$562K0.03%+4,08813F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC23,815$528K<0.01%+1,63713F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…23,784$527K<0.01%-1,97913F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd22,934$508K0.01%-14,32913F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP20,400$452K<0.01%new13F-HRTimelineGroup
DRW Securities, LLC20,176$447K0.02%new13F-HRTimeline
NATIXISin group Natixis Investment Managers20,000$443K<0.01%013F-HRTimelineGroup
HighTower Advisors, LLC19,506$432K<0.01%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…19,171$425K<0.01%new13F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC18,984$421K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.20,500$406K<0.01%-2,80013F-HRTimeline
JOURNEY STRATEGIC WEALTH LLC17,790$394K0.01%new13F-HRTimeline
Quantbot Technologies LP17,212$381K0.02%-18,73213F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…16,488$365K<0.01%-65613F-HRTimelineGroup
Creative Planningin group Creative Planning15,924$353K<0.01%new13F-HRTimelineGroup
FIRST CITIZENS BANK & TRUST CO15,830$351K0.01%new13F-HRTimeline
Verition Fund Management LLC15,789$350K<0.01%-60,04813F-HRTimeline
Envestnet Portfolio Solutions, Inc.in group ENVESTNET ASSET MANAGEMENT INC15,205$337K<0.01%new13F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…14,317$317K<0.01%013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson13,485$299K<0.01%013F-HR/ATimelineGroup
State of Alaska, Department of Revenue13,440$297K<0.01%-53313F-HRTimeline
Illinois Municipal Retirement Fund12,383$274K<0.01%+12313F-HRTimeline
Caprock Group, LLC12,335$273K0.01%+1,96213F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,924$264K<0.01%+27213F-HRTimelineGroup
Redwood Wealth Management Group, LLC11,337$251K0.11%-2,73913F-HRTimeline
Summit Global Investmentsin group Summit Global Investments11,238$249K0.01%013F-HRTimelineGroup
Louisiana State Employees Retirement Sy…11,000$244K<0.01%-40013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD10,200$226K<0.01%+7,10013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN10,072$223K<0.01%-19,49913F-HR/ATimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…9,628$213K<0.01%+8,96913F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC9,030$200K0.02%-7,45013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC8,594$190K<0.01%-33,98213F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…8,445$187K<0.01%+51913F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA7,937$175K<0.01%-1,00113F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND7,796$173K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP7,486$165K<0.01%+7,28013F-HRTimelineGroup
Police & Firemen's Retirement System of…6,827$151K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC6,769$150K<0.01%-1,94813F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…6,048$134K<0.01%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND5,645$125K<0.01%-11113F-HRTimeline
KLP KAPITALFORVALTNING AS5,500$122K<0.01%013F-HRTimeline
State of Tennessee, Department of Treas…5,076$112K<0.01%013F-HRTimeline
SIMPLEX TRADING, LLC5,020$111K<0.01%-4,03613F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…4,694$104K<0.01%-83413F-HRTimeline
EASTERN BANK4,676$104K<0.01%013F-HRTimeline
GAMMA Investing LLC3,467$76.8K<0.01%+96613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,315$51.3K<0.01%+1,57013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,305$51.1K<0.01%013F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…2,205$48.9K<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC1,726$38.2K<0.01%+63813F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.1,636$36.3K<0.01%+66113F-HRTimelineGroup
Versant Capital Management, Inc1,415$31.4K<0.01%+45313F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,376$30.5K<0.01%-13113F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC1,078$23.9K<0.01%+17213F-HRTimeline
Aster Capital Management (DIFC) Ltd815$20.3K0.01%new13F-HRTimeline
Sterling Capital Management LLC857$19K<0.01%-58013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\788$17.5K<0.01%-413F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.546$12.1K<0.01%+47613F-HR/ATimelineGroup
HANTZ FINANCIAL SERVICES, INC.523$12K<0.01%-34913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Wilmington Savings Fund Society, FSB500$11.1K<0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …495$11K<0.01%+8113F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.432$9.57K<0.01%-11113F-HRTimelineGroup
Allworth Financial LP413$9.15K<0.01%+18113F-HRTimeline
Smartleaf Asset Management LLC301$6.27K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.225$4.99K<0.01%+213F-HRTimeline
Advisory Services Network, LLC205$4.54K<0.01%new13F-HRTimeline
City State Bank200$4.43K<0.01%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…190$4.21K<0.01%+813F-HRTimelineGroup
BARROW HANLEY MEWHINNEY & STRAUSS LLC175$3.88K<0.01%+14713F-HRTimeline
Arax Advisory Partners152$3.37K<0.01%-1413F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC148$3.28K<0.01%-11,77813F-HRTimeline
Pinnacle Wealth Planning Services, Inc.140$3.1K<0.01%+3313F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC150$3K<0.01%013F-HRTimelineGroup
MAI Capital Management124$2.75K<0.01%new13F-HRTimeline
Larson Financial Group LLC118$2.62K<0.01%+11013F-HRTimeline
Salomon & Ludwin, LLC106$2.41K<0.01%new13F-HRTimeline
UMB Bank, n.a.108$2.39K<0.01%-2313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Parkside Financial Bank & Trust101$2.24K<0.01%013F-HRTimeline
SIGNATUREFD, LLC95$2.1K<0.01%-113F-HRTimeline
Parallel Advisors, LLC81$1.79K<0.01%+7913F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC72$1.6K<0.01%+6313F-HRTimeline
Blue Trust, Inc.57$1.26K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC54$1.2K<0.01%013F-HR/ATimeline
Physician Wealth Advisors, Inc.51$1.13K<0.01%-7313F-HRTimeline
Root Financial Partners, LLC48$1.06K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC43$982<0.01%+3913F-HRTimeline
Advisors Asset Management, Inc.39$864<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…38$842<0.01%+2513F-HR/ATimelineGroup
PICTON MAHONEY ASSET MANAGEMENT32$709<0.01%013F-HRTimeline
True Wealth Design, LLC28$621<0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC26$576<0.01%+713F-HRTimeline
Rachor Investment Advisory Services, LLC25$554<0.01%-2213F-HRTimeline
Keating Financial Advisory Services, In…19$421<0.01%new13F-HRTimeline
Kilter Group LLC18$399<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…16$355<0.01%013F-HRTimelineGroup
IFP Advisors, Inc16$355<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB14$310<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…10$222<0.01%013F-HRTimelineGroup
YANKCOM Partnership10$222<0.01%013F-HRTimeline
HHM Wealth Advisors, LLC6$133<0.01%013F-HRTimeline
Essential Partners LLC4$89<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.1$23<0.01%new13F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC1$23<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$22<0.01%013F-HRTimelineGroup
Covestor Ltd2$00%013F-HRTimelineValue filed as zero, left out of ratios.