Marshall Wace
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Marshall Wace’s SEI Investments SEIC Stock Holding History

Marshall Wace’s Portfolio SEIC Stock Details SEIC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-6,149
Closed -$522K – 3429
2025
Q3 		$522K Sell
6,149
-31,611
-84% -$2.81M ﹤0.01% 2214
2025
Q2 		$3.39M Buy
+37,760
New +$3.04M ﹤0.01% 1319
2024
Q1 		– Sell
-6,800
Closed -$432K – 2774
2023
Q4 		$432K Buy
+6,800
New +$397K ﹤0.01% 1767
2023
Q3 		– Sell
-27,100
Closed -$1.62M – 2632
2023
Q2 		$1.62M Buy
+27,100
New +$1.58M ﹤0.01% 1507
2021
Q1 		– Sell
-13,942
Closed -$801K – 2816
2020
Q4 		$801K Buy
+13,942
New +$761K ﹤0.01% 1302
2020
Q3 		– Sell
-7,540
Closed -$415K – 1891
2020
Q2 		$415K Buy
+7,540
New +$394K ﹤0.01% 1252
2019
Q2 		– Sell
-44,588
Closed -$2.33M – 1783
2019
Q1 		$2.33M Buy
+44,588
New +$2.23M 0.02% 693
2018
Q4 		– Sell
-91,527
Closed -$5.59M – 1783
2018
Q3 		$5.59M Sell
91,527
-23,569
-20% -$1.46M 0.05% 433
2018
Q2 		$7.2M Buy
+115,096
New +$7.66M 0.11% 228
2017
Q1 		– Sell
-268,984
Closed -$13.3M – 692
2016
Q4 		$13.3M Buy
268,984
+41,362
+18% +$1.93M 0.09% 264
2016
Q3 		$10.4M Buy
+227,622
New +$10.7M 0.07% 276
2016
Q2 		– Sell
-11,794
Closed -$508K – 1145
2016
Q1 		$508K Sell
11,794
-26,753
-69% -$1.1M ﹤0.01% 843
2015
Q4 		$2.02M Buy
38,547
+33,195
+620% +$1.73M 0.02% 559
2015
Q3 		$258K Buy
+5,352
New +$272K ﹤0.01% 829
2015
Q1 		– Sell
-61,733
Closed -$2.47M – 925
2014
Q4 		$2.47M Sell
61,733
-86,612
-58% -$3.32M 0.03% 423
2014
Q3 		$5.36M Sell
148,345
-102,082
-41% -$3.64M 0.08% 277
2014
Q2 		$8.21M Sell
250,427
-451,812
-64% -$14.6M 0.12% 200
2014
Q1 		$23.6M Buy
+702,239
New +$23.9M 0.43% 58

Other funds holding SEIC

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Loomis, Sayles & Company
Loomis, Sayles & Company Boston, Massachusetts $79.8B AUM 16.05% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Lord, Abbett & Co
Lord, Abbett & Co Jersey City, New Jersey $34.9B AUM 72.7% 1-Year Est. Return
BGC
Beutel, Goodman & Co Toronto, Ontario, Canada $13.6B AUM 17.82% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Marshall Wace's SEIC Position: Q4 2025 in Review

Marshall Wace sold out of SEI Investments (SEIC) in Q4 2025, closing a stake of 6,149 shares — an estimated $522K sold.

Marshall Wace first reported a position in SEIC in Q1 2014 and held it in 18 quarters. The position peaked at $23.6M in Q1 2014. 560 funds tracked by Wall St. Rank hold SEIC as of Q4 2025.

  • Marshall Wace reported no remaining SEI Investments position as of Q4 2025 after selling out during the quarter.
  • Marshall Wace sold 6,149 SEI Investments shares in Q4 2025, an estimated $522K.
  • Marshall Wace first reported a position in SEI Investments in Q1 2014 and held it in 18 quarters.
  • Marshall Wace's SEI Investments position peaked at $23.6M in Q1 2014.
  • 560 funds tracked by Wall St. Rank held SEI Investments as of Q4 2025.

Based on Marshall Wace's 13F filing for Q4 2025, filed 13 Feb 2026.