Marshall Wace
TSSI

Marshall Wace’s TSS Inc TSSI Stock Holding History

Marshall Wace’s Portfolio TSSI Stock Details TSSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.23M Buy
+324,962
New +$3.27M ﹤0.01% 1382
2025
Q2 		– Sell
-153,741
Closed -$1.21M – 3289
2025
Q1 		$1.21M Buy
+153,741
New +$1.83M ﹤0.01% 1702

Other funds holding TSSI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
SAM
Silvercrest Asset Management New York $13.8B AUM 28.39% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $377B AUM 19.32% 1-Year Est. Return

Marshall Wace's TSSI Position: Q1 2026 in Review

Marshall Wace opened a new position in TSS Inc (TSSI) in Q1 2026: 324,962 shares worth $4.23M. The stake represents ﹤0.01% of the portfolio and ranks #1382 among its holdings. This is a return to the name: Marshall Wace previously reported a position in TSSI as recently as Q1 2025.

Marshall Wace first reported a position in TSSI in Q1 2025 and has held it in 2 quarters since. 109 funds tracked by Wall St. Rank hold TSSI as of Q1 2026.

  • Marshall Wace held 324,962 shares of TSS Inc worth $4.23M as of Q1 2026.
  • TSS Inc was a new Marshall Wace position in Q1 2026.
  • TSS Inc made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1382 holding.
  • Marshall Wace first reported a position in TSS Inc in Q1 2025 and has held it in 2 quarters since.
  • 109 funds tracked by Wall St. Rank held TSS Inc as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.