Ticker · CUSIP 23283X206

CTSO

CYTOSORBENTS CORP
···Share
Holders (tracked)
3
Combined shares
259,604
Combined value
$165.9K
Last close
$0.66
Quarter
2025Q4
Price · 1Y$0.66-0.37 (-35.92%)H $1.29 · L $0.55 · Avg Vol 123K
Position opened
$0.60$0.80$1.00$1.20VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
332024Q12025Q4
Price is +3.3% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

4 events
  1. +83,589 shares · 2025Q4
    Position
  2. +10,205 shares · 2025Q4
    Position
  3. −34,685 shares · 2025Q4
    Position
  4. +18,166 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of CTSO…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Ken Griffin (Citadel Advisors)2016Q3$0.83-20.6%$99K
Renaissance Technologies2018Q2$1.77-62.6%$66K
Izzy Englander (Millennium Mgmt)2016Q4$1.87-64.7%$7K

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions1
Added to1
Trimmed1
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
3
$8.6M
2022Q2
4
$3.4M
2022Q3
3
$1.6M
2022Q4
3
$1.7M
2023Q1
6
$3.7M
2023Q2
6
$4.0M
2023Q3
6
$2.0M
2023Q4
3
$1.1M
2024Q1
3
$796K
2024Q2
5
$536K
2024Q3
3
$186K
2024Q4
3
$125K
2025Q1
4
$248K
2025Q2
2
$186K
2025Q3
2
$187K
2025Q4
3
$166K

Who owns CTSO

3 super-investors · 2025Q4
Tracked stake
259.6K
shares
Combined value
$166K
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added1Trim1
#ManagerSharesValue
1Ken Griffin
Citadel Advisors
149.3K$95K
2Renaissance Technologies100.1K$64K
3Izzy Englander
Millennium Mgmt
10.2K$7K

Recent moves

20 transactions
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