Jane Street
TSSI

Jane Street’s TSS Inc TSSI Stock Holding History

Jane Street’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
Q2 		$841K Buy
+68,400
New +$922K ﹤0.01% 6900
2026
Q1 		– Sell
-14,100
Closed -$99.7K – 13344
2025
Q4 		$99.7K Sell
14,100
-379,400
-96% -$4.9M ﹤0.01% 10191
2025
Q3 		$7.13M Buy
393,500
+319,700
+433% +$6.39M ﹤0.01% 2891
2025
Q2 		$2.13M Buy
73,800
+45,600
+162% +$600K ﹤0.01% 4319
2025
Q1 		$221K Buy
+28,200
New +$336K ﹤0.01% 8303

Other funds holding TSSI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SAM
Silvercrest Asset Management New York $15.3B AUM 40.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
AG
Algert Global San Francisco, California $8.43B AUM 80.94% 1-Year Est. Return

Jane Street's TSSI Position: Q2 2026 in Review

Jane Street increased its TSS Inc (TSSI) stake by 59% in Q2 2026, buying an estimated $5.24M and bringing the position to 1,047,184 shares worth $12.9M. The position accounts for ﹤0.01% of the portfolio, ranked #2562.

Jane Street first reported a position in TSSI in Q4 2024 and has held it in 6 quarters since. 123 funds tracked by Wall St. Rank hold TSSI as of Q2 2026.

  • Jane Street held 1,047,184 shares of TSS Inc worth $12.9M as of Q2 2026.
  • Jane Street bought 389,103 TSS Inc shares in Q2 2026, an estimated $5.24M.
  • TSS Inc made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2562 holding.
  • Jane Street first reported a position in TSS Inc in Q4 2024 and has held it in 6 quarters since.
  • 123 funds tracked by Wall St. Rank held TSS Inc as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.