Question 1

How many shares of CTSO does JANE STREET GROUP, LLC own?

Accepted Answer

As of 2026-Q2, JANE STREET GROUP, LLC holds 52,205 shares of CTSO (CYTOSORBENTS CORP).

Question 2

What is JANE STREET GROUP, LLC's CTSO position worth?

Accepted Answer

As of 2026-Q2, JANE STREET GROUP, LLC's CTSO position is worth $19,525.

Question 3

Is JANE STREET GROUP, LLC buying or selling CTSO?

Accepted Answer

In 2026-Q2, JANE STREET GROUP, LLC opened a new position in CTSO.

Question 4

When did JANE STREET GROUP, LLC first buy CTSO?

Accepted Answer

Based on available 13F filings, JANE STREET GROUP, LLC first reported a position in CTSO in 2024-Q3. They have held the position across 13 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	New	52,205	—	$19,525	0.0%	$0.37	29
2025-Q1	Exited	0	-100.0%	$0	0.0%	$1.00	0
2024-Q4	New	10,147	—	$9,234	0.0%	$0.91	26
2024-Q3	Exited	0	-100.0%	$0	0.0%	$1.50	0