Jane Street’s Cytosorbents Corp CTSO Stock Holding History

Jane Street’s Portfolio CTSO Stock Details CTSO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-10,147	Closed	-$9.23K	–	9592
2024 Q4	$9.23K	Buy	+10,147	New	+$9.96K	﹤0.01%	9185
2024 Q3	–	Sell	-13,446	Closed	-$9.45K	–	9670
2024 Q2	$9.45K	Sell	13,446 -33,209	-71%	-$28.8K	﹤0.01%	9116
2024 Q1	$44.3K	Buy	+46,655	New	+$45.4K	﹤0.01%	8764
2023 Q2	–	Sell	-62,473	Closed	-$211K	–	8799
2023 Q1	$211K	Buy	+62,473	New	+$187K	﹤0.01%	7770
2021 Q4	–	Sell	-11,190	Closed	-$91K	–	10158
2021 Q3	$91K	Sell	11,190 -17,001	-60%	-$138K	﹤0.01%	9344
2021 Q2	$213K	Buy	+28,191	New	+$238K	﹤0.01%	8715
2020 Q4	–	Sell	-15,691	Closed	-$125K	–	7546
2020 Q3	$125K	Buy	+15,691	New	+$142K	﹤0.01%	6677

Other funds holding CTSO

Avenir Corporation Alexandria, Virginia $820M AUM 2.4% 1-Year Est. Return

Skylands Capital Milwaukee, Wisconsin $763M AUM 26.49% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

CM Management Gulf Breeze, Florida $120M AUM 37.12% 1-Year Est. Return

SIG

Sargent Investment Group Bethesda, Maryland $759M AUM 28.58% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

GIM

Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Jane Street's CTSO Position: Q1 2025 in Review

Jane Street sold out of Cytosorbents Corp (CTSO) in Q1 2025, closing a stake of 10,147 shares — an estimated $9.23K sold.

Jane Street first reported a position in CTSO in Q3 2020 and held it in 7 quarters. The position peaked at $213K in Q2 2021. 49 funds tracked by Wall St. Rank hold CTSO as of Q1 2025.

Jane Street reported no remaining Cytosorbents Corp position as of Q1 2025 after selling out during the quarter.
Jane Street sold 10,147 Cytosorbents Corp shares in Q1 2025, an estimated $9.23K.
Jane Street first reported a position in Cytosorbents Corp in Q3 2020 and held it in 7 quarters.
Jane Street's Cytosorbents Corp position peaked at $213K in Q2 2021.
49 funds tracked by Wall St. Rank held Cytosorbents Corp as of Q1 2025.

Based on Jane Street's 13F filing for Q1 2025, filed 14 May 2025.