Marshall Wace
SST icon

Marshall Wace’s System1 SST Stock Holding History

Marshall Wace’s Portfolio SST Stock Details SST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-36,271
Closed -$255K – 3458
2025
Q3 		$255K Buy
+36,271
New +$251K ﹤0.01% 2486
2022
Q1 		– Sell
-98,259
Closed -$9.79M – 3983
2021
Q4 		$9.79M Buy
98,259
+68,967
+235% +$6.85M 0.02% 881
2021
Q3 		$2.9M Sell
29,292
-1,352
-4% -$134K 0.01% 1289
2021
Q2 		$3.03M Buy
30,644
+5,645
+23% +$561K 0.01% 1135
2021
Q1 		$2.49M Hold
24,999
– – 0.01% 1207
2020
Q4 		$2.7M Buy
+24,999
New +$2.54M 0.01% 819

Other funds holding SST

CH
Cannae Holdings Las Vegas, Nevada $134M AUM 85.46% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Cerity Partners
Cerity Partners New York $70.8B AUM 21.68% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $5.75B AUM 30.56% 1-Year Est. Return

Marshall Wace's SST Position: Q4 2025 in Review

Marshall Wace sold out of System1 (SST) in Q4 2025, closing a stake of 36,271 shares — an estimated $255K sold.

Marshall Wace first reported a position in SST in Q4 2020 and held it in 6 quarters. The position peaked at $9.79M in Q4 2021. 24 funds tracked by Wall St. Rank hold SST as of Q4 2025.

  • Marshall Wace reported no remaining System1 position as of Q4 2025 after selling out during the quarter.
  • Marshall Wace sold 36,271 System1 shares in Q4 2025, an estimated $255K.
  • Marshall Wace first reported a position in System1 in Q4 2020 and held it in 6 quarters.
  • Marshall Wace's System1 position peaked at $9.79M in Q4 2021.
  • 24 funds tracked by Wall St. Rank held System1 as of Q4 2025.

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