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Jeff Yass’s United Microelectronic UMC Stock Holding History

Jeff Yass’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
Q2 		$5.47M Sell
201,041
-374,697
-65% -$6.4M ﹤0.01% 4444
2026
Q1 		$5.17M Buy
575,738
+105,671
+22% +$1.03M ﹤0.01% 4157
2025
Q4 		$3.69M Buy
470,067
+33,812
+8% +$257K ﹤0.01% 4528
2025
Q3 		$3.31M Buy
436,255
+76,127
+21% +$540K ﹤0.01% 4788
2025
Q2 		$2.75M Sell
360,128
-301,660
-46% -$2.24M ﹤0.01% 5128
2025
Q1 		$4.73M Buy
661,788
+395,239
+148% +$2.52M ﹤0.01% 3754
2024
Q4 		$1.73M Sell
266,549
-228,752
-46% -$1.64M ﹤0.01% 5639
2024
Q3 		$4.17M Buy
495,301
+124,685
+34% +$1.04M ﹤0.01% 3920
2024
Q2 		$3.25M Sell
370,616
-335,924
-48% -$2.77M ﹤0.01% 4169
2024
Q1 		$5.72M Sell
706,540
-42,516
-6% -$338K ﹤0.01% 3434
2023
Q4 		$6.34M Sell
749,056
-23,519
-3% -$179K ﹤0.01% 3324
2023
Q3 		$5.45M Buy
772,575
+97,855
+15% +$709K ﹤0.01% 3366
2023
Q2 		$5.32M Buy
674,720
+486,197
+258% +$4.01M ﹤0.01% 3420
2023
Q1 		$1.65M Sell
188,523
-1,169,953
-86% -$9.48M ﹤0.01% 5558
2022
Q4 		$8.87M Sell
1,358,476
-822,885
-38% -$5.45M ﹤0.01% 2437
2022
Q3 		$12.2M Buy
2,181,361
+353,832
+19% +$2.34M ﹤0.01% 1923
2022
Q2 		$12.4M Buy
1,827,529
+727,299
+66% +$5.97M ﹤0.01% 1941
2022
Q1 		$10M Sell
1,100,230
-227,669
-17% -$2.26M ﹤0.01% 2551
2021
Q4 		$15.5M Buy
1,327,899
+267,055
+25% +$2.97M ﹤0.01% 2128
2021
Q3 		$12.1M Buy
1,060,844
+71,391
+7% +$766K ﹤0.01% 2594
2021
Q2 		$9.35M Buy
989,453
+253,131
+34% +$2.37M ﹤0.01% 3017
2021
Q1 		$6.71M Buy
736,322
+270,604
+58% +$2.5M ﹤0.01% 3403
2020
Q4 		$3.93M Buy
465,718
+444,505
+2,095% +$2.9M ﹤0.01% 3847
2020
Q3 		$102K Buy
+21,213
New +$78.7K ﹤0.01% 9907
2020
Q1 		– Sell
-48,026
Closed -$129K – 10924
2019
Q4 		$129K Buy
48,026
+8,809
+22% +$21.3K ﹤0.01% 9023
2019
Q3 		$82K Buy
+39,217
New +$83.6K ﹤0.01% 9646
2018
Q3 		– Sell
-12,363
Closed -$35K – 10282
2018
Q2 		$35K Sell
12,363
-33,086
-73% -$90.3K ﹤0.01% 9346
2018
Q1 		$118K Buy
45,449
+22,532
+98% +$55.8K ﹤0.01% 8634
2017
Q4 		$55K Buy
22,917
+205
+0.9% +$523 ﹤0.01% 8889
2017
Q3 		$57K Sell
22,712
-100
-0.4% -$245 ﹤0.01% 8512
2017
Q2 		$56K Buy
22,812
+10,850
+91% +$21.8K ﹤0.01% 8867
2017
Q1 		$23K Sell
11,962
-52,753
-82% -$100K ﹤0.01% 8711
2016
Q4 		$114K Sell
64,715
-9,585
-13% -$17.6K ﹤0.01% 9017
2016
Q3 		$137K Buy
+74,300
New +$142K ﹤0.01% 7814
2016
Q2 		– Sell
-122,900
Closed -$256K – 9364
2016
Q1 		$256K Sell
122,900
-15,506
-11% -$30.3K ﹤0.01% 7528
2015
Q4 		$260K Sell
138,406
-129,771
-48% -$243K ﹤0.01% 7957
2015
Q3 		$434K Sell
268,177
-45,216
-14% -$80.8K ﹤0.01% 7383
2015
Q2 		$643K Sell
313,393
-57,683
-16% -$130K ﹤0.01% 7122
2015
Q1 		$906K Sell
371,076
-499,445
-57% -$1.22M ﹤0.01% 5945
2014
Q4 		$1.98M Sell
870,521
-311,365
-26% -$663K ﹤0.01% 4484
2014
Q3 		$2.35M Buy
1,181,886
+165,800
+16% +$372K ﹤0.01% 4316
2014
Q2 		$2.45M Sell
1,016,086
-199,435
-16% -$445K ﹤0.01% 4266
2014
Q1 		$2.53M Buy
1,215,521
+1,020,338
+523% +$2.08M ﹤0.01% 3930
2013
Q4 		$398K Sell
195,183
-906,146
-82% -$1.83M ﹤0.01% 7118
2013
Q3 		$2.27M Sell
1,101,329
-60,335
-5% -$126K ﹤0.01% 3899
2013
Q2 		$2.71M Buy
+1,161,664
New +$2.36M ﹤0.01% 3427

Other funds holding UMC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Rafferty Asset Management
Rafferty Asset Management New York $43.9B AUM 121.74% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $62.7B AUM 29.77% 1-Year Est. Return

Jeff Yass's UMC Position: Q2 2026 in Review

Jeff Yass reduced its United Microelectronic (UMC) stake by 65% in Q2 2026, selling an estimated $6.4M and leaving 201,041 shares worth $5.47M. The position accounts for ﹤0.01% of the portfolio, ranked #4444.

Jeff Yass first reported a position in UMC in Q2 2013 and has held it in 46 quarters since. The position peaked at $15.5M in Q4 2021. 362 funds tracked by Wall St. Rank hold UMC as of Q2 2026.

  • Jeff Yass held 201,041 shares of United Microelectronic worth $5.47M as of Q2 2026.
  • Jeff Yass sold 374,697 United Microelectronic shares in Q2 2026, an estimated $6.4M.
  • United Microelectronic made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #4444 holding.
  • Jeff Yass first reported a position in United Microelectronic in Q2 2013 and has held it in 46 quarters since.
  • Jeff Yass's United Microelectronic position peaked at $15.5M in Q4 2021.
  • 362 funds tracked by Wall St. Rank held United Microelectronic as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.