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	$12.9M	Buy	1,047,184 +389,103	+59%	+$5.24M	﹤0.01%	2562
2026 Q1	$8.56M	Buy	658,081 +417,039	+173%	+$4.2M	﹤0.01%	2734
2025 Q4	$1.7M	Buy	241,042 +65,333	+37%	+$844K	﹤0.01%	5115
2025 Q3	$3.18M	Buy	+175,709	New	+$3.51M	﹤0.01%	4118
2025 Q2	–	Sell	-48,856	Closed	-$642K	–	11253
2025 Q1	$384K	Sell	48,856 -2,041	-4%	-$24.3K	﹤0.01%	7371
2024 Q4	$604K	Buy	+50,897	New	+$494K	﹤0.01%	6375

Other funds holding TSSI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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 Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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 San Diego, California $445B AUM 25.58% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

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. 124 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.
124 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.