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Disclosery

UMC UNITED MICROELECTRONICS CORP

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ADR (ADR), issuer CIK 1033767

309 managers (318 13F filers) reported a position in UMC shares at 2026-03-31, 174,442,658 shares in all. 67 filers opened a position and 22 filers sold out during the quarter.

Managers
309
13F filers
318
New
67
Added
144
Reduced
55
Sold out
22
Shares held by filers
174,442,658

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.27,495,880$247M<0.01%+512,36513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC14,714,030$132M0.06%+5,249,71813F-HRTimelineGroup
VANGUARD GROUP INCgroup of 5 filers holding12,673,720$114M+12,261,340Timeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP9,655,402$86.7M0.07%+3,980,00913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY8,777,903$78.8M<0.01%+1,109,07313F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding8,234,317$73.9M+3,637,975Timeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC8,124,199$72.9M0.1%+5,826,61313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC5,874,864$52.8M0.01%+1,148,95813F-HRTimelineGroup
Man Group plcin group Man Group plc5,728,901$51.4M0.11%+3,604,92413F-HRTimelineGroup
Qube Research & Technologies Ltd5,101,879$45.8M0.07%+4,838,76313F-HRTimeline
STATE STREET CORPin group STATE STREET CORP5,013,209$45M<0.01%+185,11913F-HRTimelineGroup
Rafferty Asset Management, LLC4,983,653$44.8M0.18%-1,494,17713F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC4,738,867$42.6M0.02%-772,91713F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC4,296,722$38.6M0.02%+1,288,36213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP3,198,874$28.7M<0.01%-19,00913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,849,737$25.6M0.01%+333,01113F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/2,603,218$23.4M<0.01%-3,000,47213F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC2,570,219$23.1M0.02%+2,111,06613F-HRTimelineGroup
Creative Planningin group Creative Planning2,364,371$21.2M0.01%+204,18613F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,891,608$17M0.01%+1,021,34813F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,770,129$15.9M0.01%+1,074,73013F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC1,596,151$14.3M0.04%+1,449,11713F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,581,879$14.2M0.01%+107,66913F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,049,370$9.42M0.01%+739,71213F-HRTimelineGroup
MATTHEWS INTERNATIONAL CAPITAL MANAGEME…977,645$8.78M3.56%new13F-HRTimeline
Moran Wealth Management, LLC910,416$8.18M0.25%+118,04913F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\815,563$7.32M0.01%+236,03113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC765,322$6.87M<0.01%-358,98813F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.745,338$6.69M0.06%+499,78013F-HRTimeline
Quantinno Capital Management LP710,604$6.38M0.01%+108,05013F-HRTimeline
Connor, Clark & Lunn Investment Managem…710,083$6.38M0.01%+695,61613F-HRTimeline
LSV ASSET MANAGEMENT694,211$6.23M0.01%013F-HRTimeline
RHUMBLINE ADVISERS667,577$5.99M0.01%-61,75513F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG653,499$5.87M0.05%-5,32213F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC635,255$5.7M0.05%+77,97513F-HRTimelineGroup
Aquatic Capital Management LLC603,979$5.42M0.16%-163,65513F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…575,738$5.17M0.01%+105,67113F-HRTimelineGroup
MACKENZIE FINANCIAL CORP539,683$4.85M0.01%+287,53313F-HRTimeline
Eurizon Capital SGR S.p.A.524,204$4.54M0.01%+77,69113F-HRTimeline
QUADRANT CAPITAL GROUP LLC462,655$4.15M0.12%+133,22913F-HR/ATimeline
Laird Norton Wetherby Trust Company, LLCin group Laird Norton Wetherby Trust C…461,552$4.14M0.09%+6,50713F-HRTimelineGroup
Ethic Inc.443,697$3.98M0.06%-51,89213F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC432,045$3.88M0.03%+19,71813F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC426,641$3.83M0.02%+43,52713F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.425,903$3.82M0.01%+16,20013F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP406,392$3.65M<0.01%-27,26113F-HRTimelineGroup
North of South Capital LLP405,075$3.64M0.33%+203,07513F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…364,169$3.27M0.03%new13F-HRTimelineGroup
Advisors Asset Management, Inc.363,088$3.26M0.05%+56,57113F-HRTimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…311,532$2.8M<0.01%+66,76113F-HRTimelineGroup
STOREBRAND ASSET MANAGEMENT AS307,352$2.76M0.01%013F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP293,095$2.52M<0.01%-3,811,88113F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO260,704$2.24M<0.01%+119,36413F-HR/ATimelineGroup
Cerity Partners LLCin group Cerity Partners LLC244,754$2.2M<0.01%+3,13913F-HRTimelineGroup
SIGNATUREFD, LLC230,854$2.07M0.03%+75013F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers226,720$2.04M<0.01%+49,26613F-HRTimelineGroup
OLD MISSION CAPITAL LLC225,774$2.03M0.05%new13F-HRTimeline
IEQ CAPITAL, LLC208,870$1.88M0.01%-1,54013F-HRTimeline
Engineers Gate Manager LP208,349$1.87M0.02%+176,22213F-HRTimeline
Sequoia Financial Advisors, LLC207,053$1.86M0.01%+9,05713F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP205,414$1.84M<0.01%-4,533,91213F-HRTimelineGroup
Vestmark Advisory Solutions, Inc.194,724$1.75M0.02%+118,89813F-HRTimeline
Mariner, LLCin group Mariner, LLC190,382$1.7M<0.01%+17,28613F-HRTimelineGroup
Crossmark Global Holdings, Inc.185,473$1.67M0.02%-49,84413F-HRTimeline
NLB Skladi, upravljanje premozenja, d.o…183,859$1.65M0.08%+11,50113F-HRTimeline
Brooklyn Investment Group176,548$1.59M0.05%+42,93513F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO169,183$1.52M<0.01%+141,38513F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…166,757$1.5M<0.01%+19513F-HRTimelineGroup
HRT FINANCIAL LP164,919$1.48M<0.01%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP163,818$1.47M<0.01%new13F-HRTimelineGroup
Ballentine Partners, LLC162,094$1.46M0.02%+6,98913F-HRTimeline
Delta Global Management LP159,747$1.43M0.12%new13F-HRTimeline
Summit Global Investmentsin group Summit Global Investments153,593$1.38M0.08%-107,52813F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP156,245$1.38M<0.01%+9,27913F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC152,661$1.37M<0.01%+51,84613F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd150,855$1.35M0.02%new13F-HRTimelineGroup
Callan Family Office, LLCin group Callan Family Office, LLC147,544$1.32M0.03%+74,72513F-HRTimelineGroup
GREENLEAF TRUST142,996$1.28M0.01%-9,03813F-HRTimeline
Bridgewater Advisors Inc.79,803$1.27M0.08%+1,44913F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding140,010$1.26M+123,770Timeline
Bridgewater Associates, LP134,029$1.2M0.01%new13F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …129,895$1.17M<0.01%+1,07413F-HRTimelineGroup
West Family Investments, Inc.125,324$1.13M0.39%-27,25513F-HRTimeline
Parallel Advisors, LLC124,838$1.12M0.02%+3,70613F-HR/ATimeline
Vise Technologies, Inc.142,234$1.12M0.02%013F-HRTimeline
PROFUND ADVISORS LLC124,345$1.12M0.04%-1,45813F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC123,495$1.11M<0.01%new13F-HRTimelineGroup
Frank, Rimerman Advisors LLC123,033$1.1M0.07%013F-HRTimeline
FMR LLCin group FMR LLC120,148$1.08M<0.01%-93,54213F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC114,065$1.02M<0.01%+57,16413F-HRTimelineGroup
GROUP ONE TRADING LLC113,737$1.02M0.03%new13F-HRTimeline
Caprock Group, LLC112,644$1.01M0.02%+8,52813F-HRTimeline
LPL Financial LLC112,356$1.01M<0.01%+45,41313F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC102,902$924K<0.01%+2,47813F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.102,764$923K<0.01%+12,82913F-HRTimelineGroup
Headlands Technologies LLC101,756$914K0.1%new13F-HRTimeline
Generali Investments CEE, investicni sp…101,415$911K0.05%013F-HRTimeline
Focus Partners Wealthgroup of 2 filers holding93,342$902K+5,055Timeline
SG Americas Securities, LLC99,946$898K<0.01%new13F-HRTimeline
DRW Securities, LLC98,977$889K0.05%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…97,227$873K<0.01%new13F-HRTimelineGroup
DGS Capital Management, LLCin group DGS Capital Management, LLC95,304$856K0.14%+2,35913F-HRTimelineGroup
AIA Group Ltdin group AIA Group Ltd90,799$815K0.01%new13F-HRTimelineGroup
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS87,700$788K0.01%+65,80013F-HRTimelineGroup
Jain Global LLC87,230$783K0.01%new13F-HRTimeline
QRG CAPITAL MANAGEMENT, INC.86,927$781K0.01%+46,54913F-HRTimeline
Quantbot Technologies LP86,138$774K0.03%+30,01313F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT83,710$752K0.01%+58013F-HRTimeline
TCW GROUP INCin group TCW GROUP INC83,033$746K0.01%+9,65813F-HRTimelineGroup
Ignite Planners, LLC81,497$730K0.11%-3,43113F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/77,966$700K<0.01%+22,00913F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…75,632$679K<0.01%+75,55113F-HRTimelineGroup
Blue Trust, Inc.75,486$678K0.01%-10,00013F-HRTimeline
Cambridge Investment Research Advisors,…72,016$647K<0.01%-3,48713F-HRTimeline
PDS Planning, Inc72,025$647K0.04%-1,85113F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC69,988$628K<0.01%new13F-HRTimelineGroup
HANTZ FINANCIAL SERVICES, INC.66,637$598K0.01%+2,54713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
FIL Ltdin group FIL Ltd63,259$568K<0.01%-15,59513F-HRTimelineGroup
Compound Planning, Inc.61,630$553K0.02%+8,48613F-HRTimeline
NewEdge Advisors, LLC56,558$508K<0.01%+55,89513F-HR/ATimeline
AXQ CAPITAL, LP56,101$504K0.06%new13F-HRTimeline
Abacus Wealth Partners, LLC55,860$502K0.05%-76513F-HRTimeline
RFG Advisory, LLC55,230$496K0.01%new13F-HRTimeline
TWO SIGMA SECURITIES, LLC53,982$485K0.06%new13F-HRTimeline
SIMPLEX TRADING, LLC51,364$461K0.01%new13F-HRTimeline
Ridgewood Investments LLC50,692$455K0.19%13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…50,292$452K<0.01%new13F-HRTimelineGroup
Amundiin group Amundi49,953$449K<0.01%new13F-HRTimelineGroup
Haven Private, LLC49,050$440K0.19%new13F-HRTimeline
XPONANCE LLC47,952$431K<0.01%+27,45813F-HRTimeline
Artemis Investment Management LLP44,485$399K<0.01%new13F-HRTimeline
First Affirmative Financial Network43,759$393K0.15%13F-HR/ATimeline
Foster Victor Wealth Advisors, LLC39,961$383K0.02%+1,32613F-HRTimeline
Ariadne Wealth Management, LP42,006$377K0.17%013F-HRTimeline
PCM Encore, LLC40,166$361K0.07%+3,50713F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC39,941$359K<0.01%013F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV39,775$357K<0.01%+7113F-HRTimeline
Foster Group, Inc.39,626$356K0.01%+6213F-HRTimeline
BSW Wealth Partners39,277$353K0.04%-12,29613F-HRTimeline
HighTower Advisors, LLC38,116$342K<0.01%+18,01513F-HRTimeline
EVERGREEN CAPITAL MANAGEMENT LLC37,217$334K0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA36,669$330K<0.01%+7,57713F-HRTimelineGroup
Aaron Wealth Advisors LLC35,927$323K0.02%new13F-HRTimeline
Trek Financial, LLC33,538$301K0.02%+7,89113F-HRTimeline
FOCUSED ALPHA, LLC32,869$295K0.09%+4,76113F-HRTimeline
Arta Finance Wealth Management LLC31,617$284K0.14%-7,67713F-HRTimeline
CogentBlue Wealth Advisors, LLC29,758$267K0.18%+55213F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC29,467$265K<0.01%+2,89013F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.28,989$260K<0.01%+7,19913F-HRTimelineGroup
Candriam S.C.A.28,764$258K<0.01%013F-HRTimeline
VERUS CAPITAL PARTNERS, LLC28,700$258K0.02%+5013F-HRTimeline
ExodusPoint Capital Management, LP27,712$249K<0.01%new13F-HRTimeline
FourThought Financial Partners, LLC27,626$248K0.02%-3,73113F-HRTimeline
Greenspring Advisors, LLC27,256$245K0.01%+1,24313F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC27,240$245K<0.01%+6,35613F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…27,052$243K<0.01%+7,16213F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA26,990$242K<0.01%-2,05913F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC26,797$241K<0.01%+11,61213F-HRTimelineGroup
Larson Financial Group LLC26,370$237K0.01%+25,61213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…26,119$235K0.01%+8,13913F-HR/ATimelineGroup
Aprio Wealth Management, LLC25,988$233K0.01%+2,37813F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.25,687$231K<0.01%-4,70013F-HRTimelineGroup
Canopy Partners, LLC25,645$230K0.08%+35613F-HRTimeline
Caitong International Asset Management …25,382$228K0.04%+13,42613F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC25,355$228K<0.01%+1,28513F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…24,524$220K<0.01%new13F-HRTimelineGroup
HB Wealth Management, LLC24,150$217K<0.01%+4,70913F-HRTimeline
CWM, LLCin group CWM, LLC24,135$217K<0.01%-16413F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.24,031$216K0.02%-58913F-HRTimeline
Vest Financial, LLC23,689$213K<0.01%+2,43013F-HRTimeline
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…23,585$212K<0.01%+4,18313F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC23,570$212K<0.01%013F-HRTimelineGroup
IMC-Chicago, LLC23,529$211K<0.01%new13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources23,170$208K<0.01%013F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …23,112$207K<0.01%+5,95413F-HRTimelineGroup
Resonant Capital Advisors, LLC21,343$192K0.01%+53913F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC21,496$191K<0.01%new13F-HRTimelineGroup
Crestwood Advisors Group, LLC21,173$190K<0.01%+1,67213F-HRTimeline
Oakum Bay Capital LLC21,000$189K0.1%new13F-HRTimeline
Atria Investments, Inc20,757$186K<0.01%+4,78713F-HRTimeline
GeoWealth Management, LLC20,326$183K0.01%+6,54813F-HRTimeline
EVENTIDE ASSET MANAGEMENT, LLC21,147$182K<0.01%new13F-HRTimeline
COZAD ASSET MANAGEMENT INC20,001$180K0.01%+5,87213F-HRTimeline
Centiva Capital, LP19,732$177K0.01%+6,46313F-HRTimeline
ABC ARBITRAGE SAin group ABC ARBITRAGE SA19,658$177K0.02%new13F-HRTimelineGroup
Systematic Alpha Investments, LLC19,400$174K0.01%new13F-HRTimeline
Graham Capital Management, L.P.19,334$174K0.01%+8,12113F-HRTimeline
Euro Pacific Asset Management, LLC18,552$171K0.02%+3,83613F-HRTimeline
SYON CAPITAL LLC18,952$170K0.01%+5,88313F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC18,921$170K<0.01%-40613F-HRTimeline
SummitTX Capital, L.P.18,790$169K0.01%new13F-HRTimeline
Sivia Capital Partners, LLC18,475$166K0.03%-6,31913F-HRTimeline
Argos Wealth Advisors, LLC18,193$163K0.05%013F-HRTimeline
Cetera Investment Advisers17,755$159K<0.01%+2,28313F-HRTimeline
TUDOR INVESTMENT CORP ET AL17,567$158K<0.01%new13F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding17,313$155K-1,559Timeline
NATURAL INVESTMENTS, LLC16,948$152K0.04%-2,32513F-HRTimeline
HENNESSY ADVISORS INC16,866$151K0.01%-1,34613F-HRTimeline
Leo Wealth, LLC16,700$150K0.01%+1,75213F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC16,620$149K<0.01%new13F-HRTimelineGroup