Ken Griffin
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Ken Griffin’s United Microelectronic UMC Stock Holding History

Ken Griffin’s Portfolio UMC Stock Details UMC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$6.87M Sell
765,322
-358,988
-32% -$3.5M ﹤0.01% 3839
2025
Q4 		$8.84M Buy
1,124,310
+1,073,771
+2,125% +$8.15M ﹤0.01% 3419
2025
Q3 		$383K Sell
50,539
-542,340
-91% -$3.85M ﹤0.01% 9774
2025
Q2 		$4.54M Sell
592,879
-2,011,139
-77% -$14.9M ﹤0.01% 4287
2025
Q1 		$18.6M Sell
2,604,018
-21,933
-0.8% -$140K ﹤0.01% 2123
2024
Q4 		$17M Buy
2,625,951
+1,366,605
+109% +$9.78M ﹤0.01% 2343
2024
Q3 		$10.6M Buy
1,259,346
+537,329
+74% +$4.5M ﹤0.01% 2808
2024
Q2 		$6.32M Buy
+722,017
New +$5.96M ﹤0.01% 3395
2024
Q1 		– Sell
-13,524
Closed -$108K – 15469
2023
Q4 		$114K Sell
13,524
-109,039
-89% -$831K ﹤0.01% 10762
2023
Q3 		$865K Buy
122,563
+97,381
+387% +$705K ﹤0.01% 6881
2023
Q2 		$199K Sell
25,182
-843,012
-97% -$6.94M ﹤0.01% 9909
2023
Q1 		$7.61M Buy
868,194
+674,216
+348% +$5.46M ﹤0.01% 3168
2022
Q4 		$1.27M Sell
193,978
-217,300
-53% -$1.44M ﹤0.01% 6356
2022
Q3 		$2.29M Buy
411,278
+295,532
+255% +$1.95M ﹤0.01% 5331
2022
Q2 		$784K Sell
115,746
-28,257
-20% -$232K ﹤0.01% 7591
2022
Q1 		$1.31M Sell
144,003
-4,412
-3% -$43.7K ﹤0.01% 7077
2021
Q4 		$1.74M Sell
148,415
-565,048
-79% -$6.29M ﹤0.01% 6577
2021
Q3 		$8.15M Sell
713,463
-123,008
-15% -$1.32M ﹤0.01% 3430
2021
Q2 		$7.91M Sell
836,471
-364,495
-30% -$3.42M ﹤0.01% 3519
2021
Q1 		$10.9M Buy
1,200,966
+975,998
+434% +$9.03M ﹤0.01% 2846
2020
Q4 		$1.9M Sell
224,968
-109,661
-33% -$715K ﹤0.01% 5451
2020
Q3 		$1.6M Buy
334,629
+212,685
+174% +$790K ﹤0.01% 5140
2020
Q2 		$322K Buy
121,944
+54,574
+81% +$137K ﹤0.01% 7806
2020
Q1 		$146K Sell
67,370
-204,574
-75% -$516K ﹤0.01% 8323
2019
Q4 		$729K Buy
271,944
+29,103
+12% +$70.3K ﹤0.01% 6173
2019
Q3 		$508K Buy
242,841
+67,124
+38% +$143K ﹤0.01% 6721
2019
Q2 		$388K Buy
175,717
+6,084
+4% +$12.4K ﹤0.01% 7194
2019
Q1 		$319K Sell
169,633
-6,990
-4% -$12.9K ﹤0.01% 7521
2018
Q4 		$316K Buy
176,623
+21,588
+14% +$41.5K ﹤0.01% 7170
2018
Q3 		$400K Buy
155,035
+14,980
+11% +$40.9K ﹤0.01% 7069
2018
Q2 		$395K Buy
140,055
+53,347
+62% +$146K ﹤0.01% 6757
2018
Q1 		$225K Sell
86,708
-7,744
-8% -$19.2K ﹤0.01% 7176
2017
Q4 		$226K Sell
94,452
-164,836
-64% -$420K ﹤0.01% 6931
2017
Q3 		$648K Buy
259,288
+243,964
+1,592% +$597K ﹤0.01% 4952
2017
Q2 		$37K Sell
15,324
-43,062
-74% -$86.6K ﹤0.01% 7170
2017
Q1 		$113K Buy
58,386
+29,814
+104% +$56.7K ﹤0.01% 6812
2016
Q4 		$50K Sell
28,572
-32,207
-53% -$59K ﹤0.01% 6868
2016
Q3 		$112K Buy
60,779
+27,915
+85% +$53.4K ﹤0.01% 6607
2016
Q2 		$65K Sell
32,864
-6,714
-17% -$12.9K ﹤0.01% 6344
2016
Q1 		$82K Buy
+39,578
New +$77.4K ﹤0.01% 6101
2014
Q3 		– Sell
-28,451
Closed -$69K – 8411
2014
Q2 		$69K Sell
28,451
-73,014
-72% -$163K ﹤0.01% 6513
2014
Q1 		$211K Buy
101,465
+76,411
+305% +$156K ﹤0.01% 5461
2013
Q4 		$51K Sell
25,054
-153,676
-86% -$311K ﹤0.01% 6024
2013
Q3 		$368K Buy
178,730
+3,050
+2% +$6.38K ﹤0.01% 4143
2013
Q2 		$409K Buy
+175,680
New +$357K ﹤0.01% 4029

Other funds holding UMC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $55.1B AUM 24.23% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

Ken Griffin's UMC Position: Q1 2026 in Review

Ken Griffin reduced its United Microelectronic (UMC) stake by 32% in Q1 2026, selling an estimated $3.5M and leaving 765,322 shares worth $6.87M. The position accounts for ﹤0.01% of the portfolio, ranked #3839.

Ken Griffin first reported a position in UMC in Q2 2013 and has held it in 45 quarters since. The position peaked at $18.6M in Q1 2025. 318 funds tracked by Wall St. Rank hold UMC as of Q1 2026.

  • Ken Griffin held 765,322 shares of United Microelectronic worth $6.87M as of Q1 2026.
  • Ken Griffin sold 358,988 United Microelectronic shares in Q1 2026, an estimated $3.5M.
  • United Microelectronic made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #3839 holding.
  • Ken Griffin first reported a position in United Microelectronic in Q2 2013 and has held it in 45 quarters since.
  • Ken Griffin's United Microelectronic position peaked at $18.6M in Q1 2025.
  • 318 funds tracked by Wall St. Rank held United Microelectronic as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.