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United Microelectronics Corp

UMC
Exchange
NYSE
Industry
Semiconductors & Related Devices
SEC CIK
0001033767

No open-market purchases or sales by United Microelectronics Corp insiders were filed in the last 90 days; 365 institutions reported holding it in 13F filings for Q2 2026, worth $4.89B in total; Maverick Capital is the only superinvestor holding it.

13F holders, Q4 2025

Institutional positions in United Microelectronics Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
271
+38 vs. Q3 2025
Shares held
152.3M
+20.3M (+15.3%) vs. Q3 2025
Total value
$1.19B
+$190.1M (+19.0%) vs. Q3 2025
New holders
62
119 more added
Sold out
24
55 more reduced

7 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting UMC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 271 institutions
Q1 2021: 205 institutionsQ2 2021: 203 institutionsQ3 2021: 230 institutionsQ4 2021: 264 institutionsQ1 2022: 241 institutionsQ2 2022: 225 institutionsQ3 2022: 226 institutionsQ4 2022: 223 institutionsQ1 2023: 221 institutionsQ2 2023: 220 institutionsQ3 2023: 217 institutionsQ4 2023: 250 institutionsQ1 2024: 242 institutionsQ2 2024: 238 institutionsQ3 2024: 268 institutionsQ4 2024: 253 institutionsQ1 2025: 234 institutionsQ2 2025: 239 institutionsQ3 2025: 240 institutionsQ4 2025: 271 institutionsQ1 2026: 319 institutionsQ2 2026: 365 institutions
Value heldQ4 2025: $1.19B
Q1 2021: $818.6MQ2 2021: $846.6MQ3 2021: $1.35BQ4 2021: $1.32BQ1 2022: $1.17BQ2 2022: $857.0MQ3 2022: $744.5MQ4 2022: $873.8MQ1 2023: $1.15BQ2 2023: $1.00BQ3 2023: $912.6MQ4 2023: $1.03BQ1 2024: $1.07BQ2 2024: $1.16BQ3 2024: $1.35BQ4 2024: $1.04BQ1 2025: $1.11BQ2 2025: $1.16BQ3 2025: $1.00BQ4 2025: $1.19BQ1 2026: $1.57BQ2 2026: $4.89B
Institutions holding UMC and their total value by quarter
QuarterHoldersValue
Q2 2026365$4.89B
Q1 2026319$1.57B
Q4 2025271$1.19B
Q3 2025240$1.00B
Q2 2025239$1.16B
Q1 2025234$1.11B
Q4 2024253$1.04B
Q3 2024268$1.35B
Q2 2024238$1.16B
Q1 2024242$1.07B
Q4 2023250$1.03B
Q3 2023217$912.6M
Q2 2023220$1.00B
Q1 2023221$1.15B
Q4 2022223$873.8M
Q3 2022226$744.5M
Q2 2022225$857.0M
Q1 2022241$1.17B
Q4 2021264$1.32B
Q3 2021230$1.35B
Q2 2021203$846.6M
Q1 2021205$818.6M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding United Microelectronics Corp; share changes are against Q3 2025.

Institutions holding UMC in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Merit Financial Group, LLC10,389$81.7K0.00%+10,389New
We Are One Seven, LLC10,245$80.5K0.00%+66+0.6%Added
Wealthspire Advisors, LLC10,006$78.6K0.00%+9,527+1,988.9%Added
SBI Securities Co., Ltd.9,740$76.6K0.00%−917−8.6%Reduced
Cary Street Partner Investment Advisory LLC9,553$75.1K0.02%+9,553New
Allworth Financial LP8,817$69.3K0.00%+1,498+20.5%Added
SRS Capital Advisors, Inc.8,656$68.0K0.00%+7,390+583.7%Added
Bank Julius Baer & Co. Ltd, Zurich8,107$63.7K0.00%00.0%Unchanged
Global Retirement Partners, LLC7,842$61.6K0.00%−1,549−16.5%Reduced
MAI Capital Management7,186$56.5K0.00%+2,848+65.7%Added
Smartleaf Asset Management LLC6,835$54.4K0.00%+2,389+53.7%Added
Kestra Advisory Services, LLC6,679$52.5K0.00%+6,679New
Parvin Asset Management, LLC6,600$51.9K0.04%+6,600New
Jones Financial Companies LLLP4,467$35.1K0.00%+41+0.9%Added
TD Private Client Wealth LLC4,096$32.2K0.00%+4,096New
Federation des caisses Desjardins du Quebec3,300$25.9K0.00%00.0%Unchanged
Wells Fargo & Company3,274$25.7K0.00%+451+16.0%Added
JFS Wealth Advisors, LLC2,826$22.2K0.00%00.0%Unchanged
Parallax Volatility Advisers, L.P.2,550$20.0K0.00%−3,978−60.9%Reduced
SageView Advisory Group, LLC2,471$19.4K0.00%+2,471New
Northwestern Mutual Wealth Management Co2,083$16.4K0.00%+47+2.3%Added
Nisa Investment Advisors, LLC2,072$16.3K0.00%+1,572+314.4%Added
SHP Wealth Management1,878$14.8K0.00%+1,878New
Bell Investment Advisors, Inc1,618$12.7K0.00%−180−10.0%Reduced
Westside Investment Management, Inc.1,592$12.5K0.00%00.0%Unchanged
Banque Cantonale Vaudoise1,549$12.0K0.00%+1,549New
Wiser Advisor Group LLC1,469$11.5K0.01%00.0%Unchanged
Key Financial Inc1,200$9.43K0.00%00.0%Unchanged
WealthCollab, LLC1,068$8.39K0.00%00.0%Unchanged
Parkside Financial Bank & Trust1,020$8.02K0.00%00.0%Unchanged
Cedar Mountain Advisors, LLC1,000$7.86K0.00%00.0%Unchanged
Beaird Harris Wealth Management, LLC1,000$7.86K0.00%00.0%Unchanged
Cary Street Partners Financial LLC1,000$7.86K0.00%+1,000New
True Wealth Design, LLC889$6.99K0.00%+296+49.9%Added
Highline Wealth Partners LLC795$6.25K0.00%+148+22.9%Added
Mizuho Securities Co. Ltd.782$6.15K0.08%00.0%Unchanged
North Star Investment Management Corp.779$6.12K0.00%+711+1,045.6%Added
Larson Financial Group LLC758$5.96K0.00%+8+1.1%Added
GWM Advisors LLC663$5.21K0.00%−37−5.3%Reduced
Prestige Wealth Management Group LLC661$5.20K0.00%00.0%Unchanged
UMA Financial Services, Inc.619$4.87K0.00%+247+66.4%Added
Raffa Wealth Management, LLC610$4.79K0.00%+349+133.7%Added
Fifth Third Bancorp553$4.35K0.00%00.0%Unchanged
IFP Advisors, Inc535$4.21K0.00%00.0%Unchanged
Elevated Capital Advisors, LLC500$3.93K0.00%+500New
Stone House Investment Management, LLC495$3.89K0.00%+225+83.3%Added
Cornerstone Financial Management LLC494$3.88K0.00%+494New
Ancora Advisors, LLC480$3.77K0.00%+99+26.0%Added
Brown Brothers Harriman & Co458$3.60K0.00%+458New
Valued Wealth Advisors LLC423$3.33K0.00%00.0%Unchanged
CIBC Private Wealth Group, LLC372$2.92K0.00%−1,000−72.9%Reduced
CoreCap Advisors, LLC369$2.90K0.00%−2,436−86.8%Reduced
LRI Investments, LLC364$2.86K0.00%00.0%Unchanged
Clear Street Markets LLC363$2.85K0.00%+363New
Safe Harbor Fiduciary, LLC300$2.36K0.00%+300New
Ameriflex Group, Inc.267$2.10K0.00%−267−50.0%Reduced
Clean Yield Group218$1.71K0.00%00.0%Unchanged
Golden State Wealth Management, LLC201$1.58K0.00%00.0%Unchanged
Abound Wealth Management160$1.26K0.00%00.0%Unchanged
Trust Co158$1.24K0.00%+158New
Sound Income Strategies, LLC100$9300.00%00.0%Unchanged
Financial Consulate, Inc103$8100.00%+103New
Bayban100$7860.00%+100New
Rossby Financial, LCC92$7230.00%00.0%Unchanged
Russell Investments Group, Ltd.81$6370.00%−1−1.2%Reduced
CVA Family Office, LLC69$5420.00%00.0%Unchanged
Transamerica Financial Advisors, Inc.49$3850.00%+49New
Bogart Wealth, LLC4$310.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2$160.00%00.0%Unchanged
Leonteq Securities AG1$80.00%−6,343−100.0%Reduced
Sofos Investments, Inc.1$80.00%+1New
Squarepoint Ops LLC0$00.00%−234,183−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−95,369−100.0%Sold out
Hennion & Walsh Asset Management, Inc.0$00.00%−86,571−100.0%Sold out
Aigen Investment Management, LP0$00.00%−53,905−100.0%Sold out
Encompass More Asset Management0$00.00%−46,355−100.0%Sold out
Verition Fund Management LLC0$00.00%−46,152−100.0%Sold out
Redwood Wealth Management Group, LLC0$00.00%−32,200−100.0%Sold out
EntryPoint Capital, LLC0$00.00%−20,397−100.0%Sold out
CIBC World Markets Inc.0$00.00%−19,307−100.0%Sold out
Diametric Capital, LP0$00.00%−17,238−100.0%Sold out
Sageworth Trust Co0$00.00%−16,994−100.0%Sold out
XTX Topco Ltd0$00.00%−16,736−100.0%Sold out
Barometer Capital Management Inc.0$00.00%−15,447−100.0%Sold out
Legal & General Group Plc0$00.00%−14,134−100.0%Sold out
Arete Wealth Advisors, LLC0$00.00%−12,857−100.0%Sold out
Mitsubishi UFJ Trust & Banking Corp0$00.00%−10,300−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−2,826−100.0%Sold out
Simplex Trading, LLC0$00.00%−2,430−100.0%Sold out
Umb Bank N A0$00.00%−1,725−100.0%Sold out
GPS Wealth Strategies Group, LLC0$00.00%−786−100.0%Sold out
Advisory Services Network, LLC0$00.00%−419−100.0%Sold out
Principal Securities, Inc.0$00.00%−278−100.0%Sold out
Groupe la Francaise0$00.00%−1,400−100.0%Sold out
Optiver Holding B.V.0$00.00%−1−100.0%Sold out
Wetherby Asset Management Inc––––Not filed
AXA Investment Managers S.A.––––Not filed
Ridgewood Investments LLC––––Not filed
First Affirmative Financial Network––––Not filed
Glenmede Investment Management, LP––––Not filed