Cytosorbents Corp (CTSO) — Institutional Holders, Q2 2026
51 institutional investment managers reported a CTSO position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $6.0M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
CTSO in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Neuberger Berman GroupAdded · +285,684 sh+$106.8K
- Virtu FinancialNew · +71,508 sh+$26.7K
- JANE STREET GROUPNew · +52,205 sh+$19.5K
- VANGUARD CAPITAL MANAGEMENTAdded · +34,074 sh+$12.7K
- LPL FinancialAdded · +26,934 sh+$10.1K
Biggest sellers
- Skylands CapitalTrimmed · -496,098 sh-$185.5K
- BlackRockTrimmed · -155,781 sh-$58.3K
- GEODE CAPITAL MANAGEMENTTrimmed · -105,203 sh-$39.3K
- Waverly AdvisorsSold out · -55,556 sh-$20.8K
- SUSQUEHANNA INTERNATIONAL GROUP, LLPSold out · -29,945 sh-$11.2K
CTSO 13F holders ranked 1–51 of 51
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | AVENIR#1 · 5,189,218 sh | 5,189,218 | $1.9M | 0.24% | -0.5% |
| 2 | Neuberger Berman Group#2 · 1,968,691 sh | 1,968,691 | $740.5K | <0.01% | +17.0% |
| 3 | VANGUARD CAPITAL MANAGEMENT#3 · 1,914,063 sh | 1,914,063 | $715.9K | 0.00% | +1.8% |
| 4 | CM Management#4 · 1,476,500 sh | 1,476,500 | $552.2K | 0.35% | 0.0% |
| 5 | Skylands Capital#5 · 1,211,400 sh | 1,211,400 | $453.1K | — | -29.1% |
| 6 | BlackRock#6 · 627,211 sh | 627,211 | $234.6K | 0.00% | -19.9% |
| 7 | GEODE CAPITAL MANAGEMENT#7 · 602,059 sh | 602,059 | $225.2K | 0.00% | -14.9% |
| 8 | Sargent Investment Group#8 · 555,757 sh | 555,757 | $207.9K | 0.03% | +1.1% |
| 9 | Pathstone#9 · 499,910 sh | 499,910 | $187.0K | <0.01% | 0.0% |
| 10 | VANGUARD FIDUCIARY#10 · 316,167 sh | 316,167 | $118.2K | 0.00% | +0.7% |
| 11 | CIBC Bancorp USA#11 · 172,649 sh | 172,649 | $64.6K | <0.01% | 0.0% |
| 12 | STATE STREET#12 · 159,293 sh | 159,293 | $59.6K | 0.00% | 0.0% |
| 13 | OSAIC#13 · 134,839 sh | 134,839 | $50.0K | <0.01% | +3.4% |
| 14 | UBS Group AG#14 · 131,019 sh | 131,019 | $49.0K | 0.00% | +13.7% |
| 15 | NORTHERN#15 · 111,660 sh | 111,660 | $41.8K | 0.00% | +20.7% |
| 16 | RAYMOND JAMES FINANCIAL#16 · 107,611 sh | 107,611 | $40.2K | 0.00% | -0.1% |
| 17 | NWF Advisory Services#17 · 104,139 sh | 104,139 | $38.9K | — | 0.0% |
| 18 | RENAISSANCE TECHNOLOGIES#18 · 100,020 sh | 100,020 | $37.4K | <0.01% | -0.7% |
| 19 | MORGAN STANLEY#19 · 91,338 sh | 91,338 | $34.2K | 0.00% | -8.8% |
| 20 | Key Client Fiduciary Advisors#20 · 78,457 sh | 78,457 | $29.3K | — | 0.0% |
| 21 | Virtu Financial#21 · 71,508 sh | 71,508 | $27.0K | <0.01% | New |
| 22 | XTX Topco Ltd#22 · 54,316 sh | 54,316 | $20.3K | <0.01% | +52.7% |
| 23 | JANE STREET GROUP#23 · 52,205 sh | 52,205 | $19.5K | 0.00% | New |
| 24 | LPL Financial#24 · 50,119 sh | 50,119 | $18.7K | 0.00% | +116.2% |
| 25 | STIFEL FINANCIAL#25 · 48,000 sh | 48,000 | $18.0K | 0.00% | 0.0% |
| 26 | BANK OF AMERICA#26 · 38,686 sh | 38,686 | $14.5K | 0.00% | -1.1% |
| 27 | HRT FINANCIAL#27 · 32,125 sh | 32,125 | $12.0K | 0.00% | +127.6% |
| 28 | Kestra Advisory Services#28 · 28,200 sh | 28,200 | $10.5K | 0.00% | 0.0% |
| 29 | EP Wealth Advisors#29 · 28,000 sh | 28,000 | $10.5K | 0.00% | 0.0% |
| 30 | RITHOLTZ WEALTH MANAGEMENT#30 · 27,443 sh | 27,443 | $10.3K | <0.01% | 0.0% |
| 31 | SFMG#31 · 20,000 sh | 20,000 | $7.5K | <0.01% | New |
| 32 | Creative Planning#32 · 18,956 sh | 18,956 | $7.1K | 0.00% | -11.0% |
| 33 | Seelaus Asset Management#33 · 16,300 sh | 16,300 | $6.1K | — | 0.0% |
| 34 | FIRST NATIONAL BANK OF OMAHA#34 · 15,225 sh | 15,225 | $5.8K | <0.01% | 0.0% |
| 35 | GOLDMAN SACHS GROUP#35 · 15,338 sh | 15,338 | $5.7K | 0.00% | -65.1% |
| 36 | Merit Financial Group#36 · 15,297 sh | 15,297 | $5.7K | 0.00% | 0.0% |
| 37 | Vanguard Global Advisers#37 · 13,865 sh | 13,865 | $5.2K | 0.00% | 0.0% |
| 38 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT#38 · 11,176 sh | 11,176 | $4.2K | 0.00% | New |
| 39 | Tower Research Capital (TRC)#39 · 10,223 sh | 10,223 | $3.8K | <0.01% | New |
| 40 | MARATHON CAPITAL MANAGEMENT#40 · 10,000 sh | 10,000 | $3.7K | — | 0.0% |
| 41 | FIFTH THIRD BANCORP#41 · 3,090 sh | 3,090 | $1.2K | 0.00% | +0.3% |
| 42 | Global Retirement Partners#42 · 2,358 sh | 2,358 | $882.00 | 0.00% | — |
| 43 | Rockefeller Capital Management L.P.#43 · 1,652 sh | 1,652 | $618.00 | 0.00% | -11.2% |
| 44 | Integrated Wealth Concepts#44 · 879 sh | 879 | $329.00 | 0.00% | New |
| 45 | JPMORGAN CHASE#45 · 372 sh | 372 | $142.00 | 0.00% | 0.0% |
| 46 | BARCLAYS PLC#46 · 287 sh | 287 | $107.00 | 0.00% | New |
| 47 | WELLS FARGO & COMPANY#47 · 250 sh | 250 | $94.00 | 0.00% | 0.0% |
| 48 | PNC FINANCIAL SERVICES GROUP#48 · 31 sh | 31 | $12.00 | 0.00% | 0.0% |
| 49 | Farther Finance Advisors#49 · 6 sh | 6 | $2.00 | — | 0.0% |
| 50 | BNP PARIBAS FINANCIAL MARKETS#50 · 3 sh | 3 | $1.00 | 0.00% | -82.4% |
| 51 | SBI Securities , Ltd.#51 · 1 sh | 1 | $0.00 | — | 0.0% |
Funds that sold out of CTSO in Q2 2026 (7)
Held CTSO at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Waverly Advisors55,556 sh | 55,556 | $31.5K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP29,945 sh | 29,945 | $17.0K |
| Texas Capital Bank Wealth Management Services11,000 sh | 11,000 | $6.2K |
| CITADEL ADVISORS10,799 sh | 10,799 | $6.1K |
| Your Advocates Ltd., LLP250 sh | 250 | $143.00 |
| MAI Capital Management233 sh | 233 | $132.00 |
| JONES FINANCIAL COMPANIES LLLP93 sh | 93 | $55.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.