57 institutions reported holding $9.3M of CYTOSORBENTS CORP (CTSO) in SEC 13F filings for 2026-03-31. Largest institutional holders: AVENIR CORP ($3.0M), VANGUARD CAPITAL MANAGEMENT LLC ($1.1M), Skylands Capital, LLC ($966,956), NEUBERGER BERMAN GROUP LLC ($950,776), CM Management, LLC ($836,142). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | AVENIR CORP | $3.0M | 5.2M | Trimmed |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.1M | 1.9M | New |
| 3 | Skylands Capital, LLC | $966,956 | 1.7M | Trimmed |
| 4 | NEUBERGER BERMAN GROUP LLC | $950,776 | 1.7M | Added |
| 5 | CM Management, LLC | $836,142 | 1.5M | Hold |
| 6 | BlackRock, Inc. | $443,408 | 782,992 | Added |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $400,621 | 707,262 | Added |
| 8 | Sargent Investment Group, LLC | $311,408 | 549,900 | Trimmed |
| 9 | Pathstone Holdings, LLC | $283,124 | 499,955 | Hold |
| 10 | VANGUARD FIDUCIARY TRUST CO | $177,642 | 313,856 | New |
| 11 | CIBC Bancorp USA Inc. | $97,771 | 172,649 | New |
| 12 | STATE STREET CORP | $90,208 | 159,293 | Hold |
| 13 | OSAIC HOLDINGS, INC. | $74,245 | 130,419 | Hold |
| 14 | UBS Group AG | $65,203 | 115,200 | Trimmed |
| 15 | RAYMOND JAMES FINANCIAL INC | $61,020 | 107,751 | Trimmed |
| 16 | NWF Advisory Services Inc. | $58,974 | 104,139 | Hold |
| 17 | RENAISSANCE TECHNOLOGIES LLC | $57,038 | 100,720 | Added |
| 18 | MORGAN STANLEY | $56,726 | 100,169 | Trimmed |
| 19 | NORTHERN TRUST CORP | $52,406 | 92,540 | Hold |
| 20 | Key Client Fiduciary Advisors, LLC | $44,430 | 78,457 | Hold |
| 21 | Waverly Advisors, LLC | $31,461 | 55,556 | Hold |
| 22 | STIFEL FINANCIAL CORP | $27,183 | 48,000 | Hold |
| 23 | GOLDMAN SACHS GROUP INC | $24,887 | 43,947 | Added |
| 24 | BANK OF AMERICA CORP /DE/ | $22,143 | 39,123 | Added |
| 25 | XTX Topco Ltd | $20,143 | 35,570 | Added |
Source: SEC Form 13F filings · as of 2026-03-31