Citadel Advisors’s TSS Inc TSSI Stock Holding History

Citadel Advisors’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	$2.01M	Buy	163,400 +82,200	+101%	+$1.11M	﹤0.01%	6542
2026 Q1	$1.06M	Sell	81,200 -62,600	-44%	-$630K	﹤0.01%	7535
2025 Q4	$1.02M	Sell	143,800 -573,000	-80%	-$7.4M	﹤0.01%	7361
2025 Q3	$13M	Buy	716,800 +323,200	+82%	+$6.46M	﹤0.01%	2887
2025 Q2	$11.3M	Buy	393,600 +178,000	+83%	+$2.34M	﹤0.01%	2847
2025 Q1	$1.69M	Buy	215,600 +199,000	+1,199%	+$2.37M	﹤0.01%	5866
2024 Q4	$197K	Buy	+16,600	New	+$161K	﹤0.01%	10487

Other funds holding TSSI

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

Jane Street New York $1.21T AUM 78.12% 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

Citadel Advisors's TSSI Position: Q2 2026 in Review

Citadel Advisors opened a new position in TSS Inc (TSSI) in Q2 2026: 140,813 shares worth $1.73M. The stake represents ﹤0.01% of the portfolio and ranks #6897 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in TSSI as recently as Q4 2025.

Citadel Advisors first reported a position in TSSI in Q4 2024 and has held it in 6 quarters since. The position peaked at $9.27M in Q3 2025. 123 funds tracked by Wall St. Rank hold TSSI as of Q2 2026.

Citadel Advisors held 140,813 shares of TSS Inc worth $1.73M as of Q2 2026.
TSS Inc was a new Citadel Advisors position in Q2 2026.
TSS Inc made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #6897 holding.
Citadel Advisors first reported a position in TSS Inc in Q4 2024 and has held it in 6 quarters since.
Citadel Advisors's TSS Inc position peaked at $9.27M in Q3 2025.
123 funds tracked by Wall St. Rank held TSS Inc as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.