| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| AVENIR CORP | 8.3% | +43% | $3,817,972 | +$1,559,392 | 5,230,099 | +69% | AVENIR CORP | 31 Dec 2025 |
| SATTERFIELD THOMAS A JR | 6.6% | $4,638,686 | 3,998,867 | Thomas A. Satterfield, Jr. | 13 Jan 2025 | |||
| Avenue Venture Opportunities Fund, L.P. | 5.7% | $4,356,117 | 3,755,273 | Avenue Capital Management II, L.P. | 26 Jun 2024 | |||
| Skylands Capital, LLC | 4.8% | -6% | $3,483,134 | +$256,453 | 3,002,702 | +7.9% | Skylands Capital, LLC | 31 Mar 2025 |
| VANGUARD GROUP INC | 3.1% | -57% | $2,261,479 | -$2,261,479 | 1,949,551 | -50% | The Vanguard Group | 31 Mar 2025 |
As of 31 Dec 2025, 47 institutional investors reported holding 16,720,742 shares of Cytosorbents Corp - Common Stock (CTSO). This represents 27% of the company’s total 63,013,241 outstanding shares.
The largest institutional shareholders of Cytosorbents Corp - Common Stock (CTSO) together control 26% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| AVENIR CORP | 8.3% | 5,230,099 | +2.9% | 0.36% | $3,343,079 |
| VANGUARD GROUP INC | 3.5% | 2,204,294 | 0% | 0% | $1,408,544 |
| Skylands Capital, LLC | 2.9% | 1,854,515 | -13% | 0.16% | $1,185,406 |
| NEUBERGER BERMAN GROUP LLC | 2.6% | 1,625,640 | +1.7% | 0% | $1,039,597 |
| CM Management, LLC | 2.3% | 1,476,500 | +15% | 0.8% | $943,779 |
| BlackRock, Inc. | 1.2% | 770,551 | +0.75% | 0% | $492,536 |
| Sargent Investment Group, LLC | 0.97% | 612,000 | -17% | 0.05% | $391,190 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.96% | 603,767 | +0.39% | 0% | $386,034 |
| Pathstone Holdings, LLC | 0.79% | 499,955 | 0% | $319,571 | |
| CIBC Private Wealth Group LLC | 0.27% | 172,649 | 0% | 0% | $110,357 |
| STATE STREET CORP | 0.25% | 159,293 | 0% | 0% | $101,820 |
| CITADEL ADVISORS LLC | 0.24% | 149,279 | +127% | 0% | $95,419 |
| GSA CAPITAL PARTNERS LLP | 0.24% | 148,374 | +32% | 0.01% | $95,000 |
| OSAIC HOLDINGS, INC. | 0.21% | 130,419 | 0% | 0% | $83,447 |
| MORGAN STANLEY | 0.18% | 116,479 | +8.6% | 0% | $74,454 |
| UBS Group AG | 0.18% | 115,272 | +0.06% | 0% | $73,659 |
| RAYMOND JAMES FINANCIAL INC | 0.17% | 108,702 | -0.02% | 0% | $69,482 |
| RENAISSANCE TECHNOLOGIES LLC | 0.16% | 100,120 | -26% | 0% | $63,997 |
| NORTHERN TRUST CORP | 0.15% | 92,540 | +1.1% | 0% | $59,151 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.13% | 83,363 | -15% | 0% | $53,286 |
| Key Client Fiduciary Advisors, LLC | 0.12% | 78,457 | 0% | 0.02% | $50,150 |
| Waverly Advisors, LLC | 0.09% | 55,556 | 0% | 0% | $35,511 |
| STIFEL FINANCIAL CORP | 0.08% | 48,000 | 0% | 0% | $30,682 |
| BANK OF AMERICA CORP /DE/ | 0.06% | 38,706 | +0.01% | 0% | $24,732 |
| GOLDMAN SACHS GROUP INC | 0.06% | 35,952 | -41% | 0% | $22,980 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 16,720,742 | $10,688,307 | +$306,470 | $0.64 | 47 |
| 2025 Q3 | 16,334,989 | $15,255,905 | -$76,176 | $0.93 | 48 |
| 2025 Q2 | 16,439,150 | $20,747,017 | -$475,512 | $1.28 | 43 |
| 2025 Q1 | 16,936,549 | $16,946,108 | +$1,621,898 | $1.00 | 47 |
| 2024 Q4 | 15,331,894 | $14,135,595 | -$1,258,331 | $0.91 | 49 |
| 2024 Q3 | 16,479,547 | $24,719,503 | -$163,841 | $1.50 | 52 |
| 2024 Q2 | 16,466,687 | $11,576,845 | -$649,269 | $0.70 | 44 |
| 2024 Q1 | 17,587,924 | $16,695,355 | -$483,723 | $0.95 | 48 |
| 2023 Q4 | 18,066,999 | $20,043,725 | +$3,216,187 | $1.11 | 52 |
| 2023 Q3 | 15,225,693 | $28,618,581 | -$152,760 | $1.88 | 52 |
| 2023 Q2 | 15,228,799 | $54,658,487 | +$137,905 | $3.59 | 58 |
| 2023 Q1 | 15,164,229 | $51,235,010 | +$1,680,617 | $3.37 | 57 |
| 2022 Q4 | 14,633,483 | $22,639,263 | -$45,975 | $1.55 | 47 |
| 2022 Q3 | 13,738,883 | $18,678,835 | -$1,556,761 | $1.36 | 51 |
| 2022 Q2 | 15,471,130 | $33,885,658 | -$6,118,886 | $2.19 | 68 |
| 2022 Q1 | 18,023,750 | $57,468,184 | +$256,084 | $3.19 | 81 |
| 2021 Q4 | 17,787,059 | $74,549,808 | -$8,090,953 | $4.19 | 89 |
| 2021 Q3 | 18,365,550 | $149,202,914 | +$6,984,615 | $8.12 | 93 |
| 2021 Q2 | 17,524,476 | $132,378,236 | -$233,053 | $7.55 | 97 |
| 2021 Q1 | 17,470,204 | $151,609,944 | -$1,998,575 | $8.68 | 91 |
| 2020 Q4 | 17,574,310 | $140,069,028 | +$3,065,684 | $7.97 | 89 |
| 2020 Q3 | 17,195,121 | $137,138,701 | +$46,357,178 | $7.98 | 94 |
| 2020 Q2 | 11,233,329 | $111,252,626 | +$14,117,068 | $9.90 | 89 |
| 2020 Q1 | 9,938,360 | $76,782,098 | +$8,994,470 | $7.73 | 79 |
| 2019 Q4 | 8,941,247 | $34,418,814 | +$1,513,313 | $3.85 | 70 |
| 2019 Q3 | 8,444,748 | $42,473,266 | -$1,062,816 | $5.03 | 66 |
| 2019 Q2 | 8,514,726 | $56,282,437 | +$525,949 | $6.61 | 68 |
| 2019 Q1 | 8,508,451 | $64,405,572 | -$1,162,319 | $7.57 | 71 |
| 2018 Q4 | 8,656,316 | $69,927,146 | +$1,133,626 | $8.08 | 82 |
| 2018 Q3 | 8,196,875 | $105,728,460 | +$5,077,024 | $12.90 | 78 |
| 2018 Q2 | 7,799,450 | $88,919,578 | +$45,837,712 | $11.40 | 72 |
| 2018 Q1 | 3,924,758 | $27,669,000 | +$5,315,910 | $7.05 | 47 |
| 2017 Q4 | 3,206,188 | $20,847,000 | +$4,718,786 | $6.50 | 43 |
| 2017 Q3 | 2,481,878 | $15,385,000 | +$3,763,184 | $6.20 | 30 |
| 2017 Q2 | 1,938,263 | $8,335,000 | -$2,210,646 | $4.30 | 30 |
| 2017 Q1 | 2,432,898 | $10,945,000 | +$4,437,832 | $4.50 | 33 |
| 2016 Q4 | 1,594,528 | $8,689,000 | +$49,086 | $5.45 | 37 |
| 2016 Q3 | 1,568,958 | $10,038,360 | -$1,210,437 | $6.40 | 34 |
| 2016 Q2 | 1,773,199 | $8,063,000 | +$413,105 | $4.55 | 33 |
| 2016 Q1 | 1,405,899 | $5,507,447 | +$5,695 | $3.92 | 31 |
| 2015 Q4 | 1,375,701 | $7,660,000 | -$173,999 | $5.57 | 38 |
| 2015 Q3 | 1,350,065 | $8,514,000 | +$690,433 | $6.30 | 30 |
| 2015 Q2 | 1,241,972 | $7,625,037 | +$743,226 | $6.14 | 29 |
| 2015 Q1 | 908,197 | $11,940,236 | +$7,890,541 | $13.19 | 27 |
| 2014 Q4 | 394,240 | $3,921,376 | +$1,051,376 | $9.96 | 9 |