Marshall Wace
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Marshall Wace’s United Microelectronic UMC Stock Holding History

Marshall Wace’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 		$3.8M Sell
139,510
-65,904
-32% -$1.13M ﹤0.01% 1509
2026
Q1 		$1.84M Sell
205,414
-4,533,912
-96% -$44.2M ﹤0.01% 1834
2025
Q4 		$37.3M Buy
4,739,326
+1,937,921
+69% +$14.7M 0.03% 429
2025
Q3 		$21.2M Buy
+2,801,405
New +$19.9M 0.02% 631
2025
Q2 		– Sell
-662,824
Closed -$4.74M – 3202
2025
Q1 		$4.74M Sell
662,824
-2,712,444
-80% -$17.3M 0.01% 1090
2024
Q4 		$21.9M Sell
3,375,268
-4,455,625
-57% -$31.9M 0.03% 508
2024
Q3 		$65.9M Buy
7,830,893
+2,582,666
+49% +$21.6M 0.08% 225
2024
Q2 		$46M Buy
5,248,227
+4,577,177
+682% +$37.8M 0.06% 281
2024
Q1 		$5.43M Buy
671,050
+608,122
+966% +$4.84M 0.01% 972
2023
Q4 		$532K Buy
+62,928
New +$480K ﹤0.01% 1701
2023
Q3 		– Sell
-57,900
Closed -$457K – 2709
2023
Q2 		$457K Buy
+57,900
New +$477K ﹤0.01% 2019
2023
Q1 		– Sell
-710,577
Closed -$4.64M – 3121
2022
Q4 		$4.64M Sell
710,577
-308,596
-30% -$2.04M 0.01% 1230
2022
Q3 		$5.68M Sell
1,019,173
-2,128,968
-68% -$14.1M 0.01% 1284
2022
Q2 		$21.3M Buy
3,148,141
+964,471
+44% +$7.91M 0.04% 438
2022
Q1 		$19.9M Buy
2,183,670
+2,178,129
+39,309% +$21.6M 0.04% 501
2021
Q4 		$65K Buy
+5,541
New +$61.6K ﹤0.01% 3492
2020
Q2 		– Sell
-47,848
Closed -$104K – 1959
2020
Q1 		$104K Buy
+47,848
New +$121K ﹤0.01% 1310
2019
Q4 		– Sell
-173,075
Closed -$362K – 2073
2019
Q3 		$362K Buy
+173,075
New +$369K ﹤0.01% 1167

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

Marshall Wace's UMC Position: Q2 2026 in Review

Marshall Wace reduced its United Microelectronic (UMC) stake by 32% in Q2 2026, selling an estimated $1.13M and leaving 139,510 shares worth $3.8M. The position accounts for ﹤0.01% of the portfolio, ranked #1509.

Marshall Wace first reported a position in UMC in Q3 2019 and has held it in 18 quarters since. The position peaked at $65.9M in Q3 2024. 362 funds tracked by Wall St. Rank hold UMC as of Q2 2026.

  • Marshall Wace held 139,510 shares of United Microelectronic worth $3.8M as of Q2 2026.
  • Marshall Wace sold 65,904 United Microelectronic shares in Q2 2026, an estimated $1.13M.
  • United Microelectronic made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #1509 holding.
  • Marshall Wace first reported a position in United Microelectronic in Q3 2019 and has held it in 18 quarters since.
  • Marshall Wace's United Microelectronic position peaked at $65.9M in Q3 2024.
  • 362 funds tracked by Wall St. Rank held United Microelectronic as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.