Ken Griffin
TSSI

Ken Griffin’s TSS Inc TSSI Stock Holding History

Ken Griffin’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 		– Sell
-170,182
Closed -$1.71M – 14587
2025
Q4 		$1.2M Sell
170,182
-341,869
-67% -$4.42M ﹤0.01% 6989
2025
Q3 		$9.27M Buy
512,051
+430,693
+529% +$8.6M ﹤0.01% 3388
2025
Q2 		$2.35M Sell
81,358
-161,032
-66% -$2.12M ﹤0.01% 5411
2025
Q1 		$1.9M Buy
242,390
+40,845
+20% +$486K ﹤0.01% 5630
2024
Q4 		$2.39M Buy
+201,545
New +$1.96M ﹤0.01% 5259

Other funds holding TSSI

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $1.88T AUM 44.46% 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 $3.37T AUM 44.26% 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 $445B AUM 25.58% 1-Year Est. Return

Ken Griffin's TSSI Position: Q1 2026 in Review

Ken Griffin sold out of TSS Inc (TSSI) in Q1 2026, closing a stake of 170,182 shares — an estimated $1.71M sold.

Ken Griffin first reported a position in TSSI in Q4 2024 and held it in 5 quarters. The position peaked at $9.27M in Q3 2025. 109 funds tracked by Wall St. Rank hold TSSI as of Q1 2026.

  • Ken Griffin reported no remaining TSS Inc position as of Q1 2026 after selling out during the quarter.
  • Ken Griffin sold 170,182 TSS Inc shares in Q1 2026, an estimated $1.71M.
  • Ken Griffin first reported a position in TSS Inc in Q4 2024 and held it in 5 quarters.
  • Ken Griffin's TSS Inc position peaked at $9.27M in Q3 2025.
  • 109 funds tracked by Wall St. Rank held TSS Inc as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.