Equibles
  • Stocks
  • UMC United Microelectronics Corp

UMC

United Microelectronics Corp

Company with tickers: UMC

CIK
1033767
CUSIP
910873405
Shares Outstanding
2,509,286,774
13F Activity (30d)
246 filings 245 filers
Holders: 317
Total Value: $1,611,283,949
Total Shares: 179,430,306
Showing 1–100 of 330 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 317 13F filers · Δ vs Dec 31, 2025
Top Holder
15.3%
Jun 2023 → Mar 2026 · range 12.3% – 17.9%
−2.3 pts
Top 5
38.8%
Jun 2023 → Mar 2026 · range 38.8% – 56.6%
−3.1 pts
Top 10
57.4%
Jun 2023 → Mar 2026 · range 57.4% – 73.9%
−1.8 pts
HHI
507
Jun 2023 → Mar 2026 · range 507 – 831
Broadly held −81

Quarterly Activity

vs Dec 31, 2025
New
75
Increased
141
Decreased
57
Sold Out
29
Unchanged
44
Holder count: +46
Institutional value: +33.9%
Shares held: +17.2%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large ACADIAN ASSET MANAGEMENT LLC +5,826,613 8,124,199
Mega AQR CAPITAL MANAGEMENT LLC +5,249,718 14,714,030
Large Qube Research & Technologies Ltd +4,838,763 5,101,879
Mega TWO SIGMA INVESTMENTS, LP +3,980,009 9,655,402
Large Man Group plc +3,604,924 5,728,901

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large MARSHALL WACE, LLP −4,533,912 205,414
Mega SCHRODER INVESTMENT MANAGEMENT GROUP −3,811,881 293,095
Mega BANK OF AMERICA CORP /DE/ −3,000,472 2,603,218
Large Rafferty Asset Management, LLC −1,494,177 4,983,653
Mega BARCLAYS PLC −772,917 4,738,867

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 8,988,443 $80,716,218
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 2,763,082 $24,812,476
Small MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC 977,645 $8,779,252
Mega VANGUARD FIDUCIARY TRUST CO 440,567 $3,956,291
Large CAPSTONE INVESTMENT ADVISORS, LLC 364,169 $3,270,237

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 13,524,036 $106,298,921
Large TWO SIGMA ADVISERS, LP 3,449,200 $27,110,712
Large Balyasny Asset Management L.P. 1,980,820 $15,569,245
Small KADENSA CAPITAL Ltd 1,335,392 $10,496,181
Small Symmetry Investments LP 185,900 $1,461,174
Filter: New 75 Increased 141 Reduced 57 Sold out 29 Unchanged 44
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $246,912,997 15.32% 27,495,880
Mega AQR CAPITAL MANAGEMENT LLC $132,131,988 8.20% 14,714,030
Mega TWO SIGMA INVESTMENTS, LP $86,705,509 5.38% 9,655,402
Mega VANGUARD CAPITAL MANAGEMENT LLC $80,716,218 5.01% 8,988,443
Mega MORGAN STANLEY $78,825,565 4.89% 8,777,903
Mega UBS Group AG $73,412,790 4.56% 8,175,144
Large ACADIAN ASSET MANAGEMENT LLC $72,955,307 4.53% 8,124,199
Mega GOLDMAN SACHS GROUP INC $52,756,277 3.27% 5,874,864
Large Man Group plc $51,445,530 3.19% 5,728,901
Large Qube Research & Technologies Ltd $45,814,873 2.84% 5,101,879
Mega STATE STREET CORP $45,018,616 2.79% 5,013,209
Large Rafferty Asset Management, LLC $44,753,203 2.78% 4,983,653
Mega BARCLAYS PLC $42,555,025 2.64% 4,738,867
Mega CITIGROUP INC $38,584,563 2.39% 4,296,722
Mega NORTHERN TRUST CORP Bank $28,725,887 1.78% 3,198,874
Mega DIMENSIONAL FUND ADVISORS LP $25,590,637 1.59% 2,849,737
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $24,812,476 1.54% 2,763,082
Mega BANK OF AMERICA CORP /DE/ Bank $23,376,897 1.45% 2,603,218
Mega JANE STREET GROUP, LLC $23,080,565 1.43% 2,570,219
Large Creative Planning $21,232,050 1.32% 2,364,371
Mega D. E. Shaw & Co., Inc. $16,986,639 1.05% 1,891,608
Mega MILLENNIUM MANAGEMENT LLC $15,895,758 0.99% 1,770,129
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $15,110,646 0.94% 1,682,700
Large Tidal Investments LLC $14,333,435 0.89% 1,596,151
Mega BNP PARIBAS ARBITRAGE, SA $14,205,273 0.88% 1,581,879
Large Tidal Investments LLC $12,657,310 0.79% 1,409,500
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $9,423,342 0.58% 1,049,370
Small MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC $8,779,252 0.54% 977,645
Mid Moran Wealth Management, LLC $8,175,534 0.51% 910,416
Large US BANCORP \DE\ Bank $7,323,755 0.45% 815,563
Mega CITADEL ADVISORS LLC $6,872,591 0.43% 765,322
Large CAPITAL FUND MANAGEMENT S.A. $6,693,135 0.42% 745,338
Large Quantinno Capital Management LP $6,381,223 0.40% 710,604
Large Connor, Clark & Lunn Investment Management Ltd. $6,376,545 0.40% 710,083
Large LSV ASSET MANAGEMENT $6,234,014 0.39% 694,211
Mega RHUMBLINE ADVISERS $5,994,841 0.37% 667,577
Large B. Metzler seel. Sohn & Co. AG $5,868,421 0.36% 653,499
Large Vident Advisory, LLC $5,704,588 0.35% 635,255
Mid Aquatic Capital Management LLC $5,423,731 0.34% 603,979
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,170,127 0.32% 575,738
Large MACKENZIE FINANCIAL CORP $4,846,353 0.30% 539,683
Large Eurizon Capital SGR S.p.A. $4,707,351 0.29% 524,204
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,541,186 0.28% 505,700
Mid QUADRANT CAPITAL GROUP LLC $4,154,641 0.26% 462,655
Mid Laird Norton Wetherby Trust Company, LLC Bank $4,144,736 0.26% 461,552
Mid Ethic Inc. $3,984,399 0.25% 443,697
Mega VANGUARD FIDUCIARY TRUST CO Bank $3,956,291 0.25% 440,567
Large GUGGENHEIM CAPITAL LLC $3,879,763 0.24% 432,045
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $3,831,236 0.24% 426,641
Large Baird Financial Group, Inc. $3,824,608 0.24% 425,903
Mid Vanguard Personalized Indexing Management, LLC $3,756,513 0.23% 418,320
Mega FIRST TRUST ADVISORS LP $3,649,400 0.23% 406,392
Mid North of South Capital LLP $3,637,573 0.23% 405,075
Large CAPSTONE INVESTMENT ADVISORS, LLC $3,270,237 0.20% 364,169
Mid Advisors Asset Management, Inc. $3,260,530 0.20% 363,088
Large Robeco Institutional Asset Management B.V. $2,797,557 0.17% 311,532
Large STOREBRAND ASSET MANAGEMENT AS $2,760,020 0.17% 307,352
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $2,631,991 0.16% 293,095
Mega JPMORGAN CHASE & CO $2,341,119 0.15% 260,704
Large Cerity Partners LLC $2,197,889 0.14% 244,754
Mid SIGNATUREFD, LLC $2,073,068 0.13% 230,854
Large NATIXIS ADVISORS, LLC $2,035,945 0.13% 226,720
Large OLD MISSION CAPITAL LLC $2,027,450 0.13% 225,774
Large IEQ CAPITAL, LLC $1,875,652 0.12% 208,870
Mid Engineers Gate Manager LP $1,870,974 0.12% 208,349
Mid Sequoia Financial Advisors, LLC $1,859,335 0.12% 207,053
Large MARSHALL WACE, LLP $1,844,617 0.11% 205,414
Mega UBS Group AG $1,796,000 0.11% 200,000
Mid Vestmark Advisory Solutions, Inc. $1,748,621 0.11% 194,724
Large Mariner, LLC $1,709,629 0.11% 190,382
Mid Crossmark Global Holdings, Inc. $1,665,547 0.10% 185,473
Mid NLB Skladi, upravljanje premozenja, d.o.o. $1,651,053 0.10% 183,859
Mid Brooklyn Investment Group $1,585,401 0.10% 176,548
Large SEI INVESTMENTS CO $1,519,263 0.09% 169,183
Mega PNC FINANCIAL SERVICES GROUP, INC. $1,497,476 0.09% 166,757
Mega CITADEL ADVISORS LLC $1,484,394 0.09% 165,300
Large HRT FINANCIAL LP $1,480,972 0.09% 164,919
Large STIFEL FINANCIAL CORP $1,471,085 0.09% 163,818
Mid Ballentine Partners, LLC $1,455,602 0.09% 162,094
Mid Delta Global Management LP $1,434,528 0.09% 159,747
Large Walleye Trading LLC $1,430,514 0.09% 159,300
Large Corient Private Wealth LLC $1,403,079 0.09% 156,245
Small Summit Global Investments $1,379,265 0.09% 153,593
Large Walleye Capital LLC $1,372,144 0.09% 152,800
Mega ENVESTNET ASSET MANAGEMENT INC $1,370,895 0.09% 152,661
Mid XTX Topco Ltd $1,354,677 0.08% 150,855
Mid Callan Family Office, LLC Family Office $1,324,945 0.08% 147,544
Mid GREENLEAF TRUST $1,284,104 0.08% 142,996
Mid Vise Technologies, Inc. $1,277,261 0.08% 142,234
Mega UBS Group AG $1,252,710 0.08% 139,500
Large Walleye Capital LLC $1,216,790 0.08% 135,500
Large Bridgewater Associates, LP $1,203,580 0.07% 134,029
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $1,166,457 0.07% 129,895
Mega CITADEL ADVISORS LLC $1,155,726 0.07% 128,700
Small West Family Investments, Inc. $1,125,409 0.07% 125,324
Mid Parallel Advisors, LLC $1,121,045 0.07% 124,838
Mid PROFUND ADVISORS LLC $1,116,618 0.07% 124,345
Large Squarepoint Ops LLC $1,108,985 0.07% 123,495
Mid Frank, Rimerman Advisors LLC $1,104,836 0.07% 123,033
Mega FMR LLC $1,078,928 0.07% 120,148
Page 1 of 4
Next »

Report a Problem

Category
Description
Email (optional, for follow-up)