Security key
23283X206
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 17,574,310
- Total 13F value
- $140,069,028
- Share change
- +383,837
- Put/Call ratio
- 149%
- SEC-reported price per share
- $7.97
- Number of holders
- 89
- Value change
- +$3,065,684
- Number of buys
- 43
- Number of sells
- 33
- Shares outstanding
- 63,013,241
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2020
Institutions
89
Top holders
10
CTSO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
Cytosorbents Corp SEC filings
Cytosorbents Corp company facts
Broader feeds
Reporting periods
Holder history for CUSIP 23283X206
Recent filing periods:
Ownership snapshot
Top reported holders of CTSO - Cytosorbents Corp - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2020
13F
Lead comparable stake: 4.3%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 4.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
4.3%
Redmile Group, LLC
3.3%
VANGUARD GROUP INC
3%
SECTORAL ASSET MANAGEMENT INC
2.6%
Skylands Capital, LLC
2.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
4.3%
|
$21,481,000
2,693,532 shares
|
— | 30 Sep 2020 |
| Redmile Group, LLC |
13F
Company
|
3.3%
|
$16,757,000
2,101,131 shares
|
— | 30 Sep 2020 |
| VANGUARD GROUP INC |
13F
Company
|
3%
|
$15,123,000
1,896,251 shares
|
— | 30 Sep 2020 |
| SECTORAL ASSET MANAGEMENT INC |
13F
Company
|
2.6%
|
$12,999,000
1,629,989 shares
|
— | 30 Sep 2020 |
| Skylands Capital, LLC |
13F
Company
|
2.3%
|
$11,345,000
1,421,700 shares
|
— | 30 Sep 2020 |
| Sargent Investment Group, LLC |
13F
Company
|
1.1%
|
$5,524,000
692,738 shares
|
— | 30 Sep 2020 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
89
Shares
17,574,310
Rows available
89
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2020 vs Q1 2026 Across Filers
Q1 2026 holders
49
Q4 2020 holders
89
Holder diff
40
| Investor | Q1 2026 Shares | Q4 2020 Shares | Share Diff | Share Chg % | Q1 2026 value | Q4 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend