CytosorbentsCTSO
13F holders, Q1 2025 (March 31)At the end of Q1 2025, 49 institutions reported holding Cytosorbents Corp. (CTSO) in their 13F filings, down 2 from Q4 2024. 7 opened new positions and 9 sold out. The largest holders were Avenir Corp. ($5.0M), Skylands Capital, LLC ($3.0M) and Vanguard Group Inc. ($1.9M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Cytosorbents Corp.
- CUSIP
- 23283X206
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $224K |
| Exits | 9 | $169K |
All 13F filers, Q4 2024 → Q1 2025: 3,096,945 shares bought and 1,491,648 shares sold, net +1,605,297 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 49 holders
| Avenir Corp. | 0.53% | Add +63.1% | 5,044,918 | $5.0M |
| Skylands Capital, LLC | 0.43% | Add +8.0% | 3,002,702 | $3.0M |
| Vanguard Group Inc. | 0.00% | No change | 1,949,551 | $1.9M |
| Neuberger Berman Group LLC | 0.00% | Reduce -0.1% | 1,679,628 | $1.7M |
| CM Management, LLC | 0.96% | Add +36.3% | 954,076 | $954K |
| Sargent Investment Group, LLC | 0.13% | Reduce -34.1% | 823,500 | $824K |
| BlackRock, Inc. | 0.00% | No change | 627,305 | $627K |
| Geode Capital Management, LLC | 0.00% | Add +29.5% | 613,855 | $614K |
| Granahan Investment Management, LLC | 0.02% | Reduce -70.3% | 358,418 | $358K |
| Renaissance Technologies | 0.00% | Add +155.9% | 225,254 | $225K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 172,649 | $166K |
| Osaic Holdings, Inc. | 0.00% | Add +28.7% | 163,748 | $164K |
| State Street Corp. | 0.00% | No change | 159,293 | $159K |
| UBS Group AG | 0.00% | Reduce -20.5% | 115,200 | $115K |
| Raymond James Financial Inc. | 0.00% | Add +1.6% | 110,340 | $110K |
| Morgan Stanley | 0.00% | Reduce -0.9% | 105,707 | $106K |
| NWF Advisory Services Inc. | 0.01% | New | 104,139 | $104K |
| Northern Trust Corp. | 0.00% | No change | 91,560 | $92K |
| Key Client Fiduciary Advisors, LLC | 0.04% | Add +127.0% | 78,457 | $78K |
| Kestra Advisory Services, LLC | 0.00% | Add +28.9% | 70,880 | $71K |
| Goldman Sachs Group Inc. | 0.00% | Add +149.2% | 62,662 | $63K |
| Gsa Capital Partners LLP | 0.00% | New | 53,030 | $53K |
| Stifel Financial Corp. | 0.00% | No change | 48,000 | $48K |
| Bank of America Corp. | 0.00% | Add +27.7% | 43,979 | $44K |
| Squarepoint Ops LLC | 0.00% | New | 40,549 | $41K |
| XTX Topco Ltd | 0.00% | Add +32.1% | 30,113 | $30K |
| EP Wealth Advisors, LLC | 0.00% | No change | 28,000 | $28K |
| Compound Planning, Inc. | 0.00% | Add +0.7% | 27,643 | $28K |
| Sei Investments Co. | 0.00% | Add +70.6% | 26,543 | $27K |
| Creative Planning | 0.00% | Add +8.6% | 23,115 | $23K |
| Seelaus Asset Management LLC | 0.02% | Reduce -2.7% | 18,300 | $18K |
| Two Sigma Securities, LLC | 0.00% | New | 15,287 | $15K |
| Country Club Bank | 0.00% | No change | 15,225 | $15K |
| Merit Financial Group, LLC | 0.00% | Add +0.6% | 15,083 | $15K |
| Chicago Partners Investment Group LLC | 0.00% | Reduce -1.3% | 13,443 | $12K |
| Citadel Advisors | 0.00% | New | 8,183 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +162.7% | 5,503 | $6K |
| Hexagon Capital Partners LLC | 0.00% | No change | 3,333 | $3K |
| Comerica Bank | 0.00% | Reduce -10.3% | 3,307 | $3K |
| N.E.W. Advisory Services LLC | 0.00% | New | 2,720 | $3K |
| JPMorgan Chase & Co. | 0.00% | Reduce -1.8% | 485 | $485 |
| Your Advocates Ltd., LLP | 0.00% | No change | 250 | $250 |
| Wells Fargo & Company | 0.00% | No change | 250 | $250 |
| MAI Capital Management | 0.00% | Add +126.2% | 233 | $233 |
| SBI Securities Co., Ltd. | 0.00% | No change | 100 | $100 |
| Medallion Wealth Advisors, LLC | 0.00% | No change | 45 | $45 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 31 | $31 |
| BNP Paribas Financial Markets | 0.00% | No change | 3 | $3 |
| Lazard Asset Management LLC | 0.00% | New | 954 | $0 |
"% of holder's portfolio" is CTSO's weight in each manager's 13F, not the share of Cytosorbents Corp. the manager owns.