Stock Ownership/UMC

UNITED MICROELECTRONICS CORP (UMC): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in UMC · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
17
13F filers
Aggregate Value
$501.6M
Across holders
Last Price
$19.05
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity7 increased10 reduced3 exited
Full exits: Bridgewater Associates, LP, Qube Research & Technologies Ltd, ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Institutional Holders of UMC
↗
17 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund7.72M$210.0M41.9%0.1%Reduced+$210.0MQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund5.59M$152.2M30.3%0.2%Reduced$-123.0MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund3.09M$84.0M16.8%0.1%Reduced$-178.7MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund603K$16.4M3.3%0.0%Added+$13.1MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund506K$13.8M2.7%0.0%Reduced+$11.5MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund210K$5.7M1.1%0.0%Reduced+$1.2MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund196K$5.3M1.1%0.0%Reduced$-46.1MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund140K$3.8M0.8%0.0%Reduced$-1.4MQ2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund113K$3.1M0.6%0.0%Added$-599KQ2 2026
TCW GROUP INC
CIK 0000850401
Hedge Fund71K$1.9M0.4%0.0%Reduced$-337KQ2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$210.0M· 41.9% of total· 0.1% port· 7.72M sh· +$210.0M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$152.2M· 30.3% of total· 0.2% port· 5.59M sh· $-123.0M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$84.0M· 16.8% of total· 0.1% port· 3.09M sh· $-178.7M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$16.4M· 3.3% of total· 0.0% port· 603K sh· +$13.1M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$13.8M· 2.7% of total· 0.0% port· 506K sh· +$11.5M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$5.7M· 1.1% of total· 0.0% port· 210K sh· +$1.2M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$5.3M· 1.1% of total· 0.0% port· 196K sh· $-46.1M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$3.8M· 0.8% of total· 0.0% port· 140K sh· $-1.4M QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$3.1M· 0.6% of total· 0.0% port· 113K sh· $-599K QoQ· Q2 2026
TCW GROUP INCReduced
Hedge Fund
$1.9M· 0.4% of total· 0.0% port· 71K sh· $-337K QoQ· Q2 2026
Bridgewater Advisors Inc.Added
Hedge Fund
$1.5M· 0.3% of total· 0.1% port· 82K sh· +$49K QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$1.5M· 0.3% of total· 0.0% port· 56K sh· +$1.4M QoQ· Q2 2026
MAVERICK CAPITAL LTDAdded
Hedge Fund
$783K· 0.2% of total· 0.0% port· 29K sh· — QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$596K· 0.1% of total· 0.0% port· 22K sh· +$118K QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$544K· 0.1% of total· 0.0% port· 20K sh· — QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCReduced
Hedge Fund
$295K· 0.1% of total· 0.0% port· 11K sh· $-9.6M QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$10K· 0.0% of total· 0.0% port· 381 sh· $-3K QoQ· Q2 2026
1–10 of 17
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