Stocks · Health care · Surgical & Medical Instruments & Apparatus

Cytosorbents Corp

CTSO Clue Score34
United States Fiscal year ends December CIK 0001175151
$3.79 +1.61% Close, 9 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
3.79 on 9 Oct 2026
7 4 0 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $0.93 14 Oct 2025 $0.92 15 Oct 2025 $0.92 16 Oct 2025 $0.91 17 Oct 2025 $0.89 20 Oct 2025 $0.85 21 Oct 2025 $0.83 22 Oct 2025 $0.85 23 Oct 2025 $0.84 24 Oct 2025 $0.85 27 Oct 2025 $0.82 28 Oct 2025 $0.84 29 Oct 2025 $0.78 30 Oct 2025 $0.78 31 Oct 2025 $0.80 3 Nov 2025 $0.78 4 Nov 2025 $0.79 5 Nov 2025 $0.75 6 Nov 2025 $0.71 7 Nov 2025 $0.71 10 Nov 2025 $0.72 11 Nov 2025 $0.70 12 Nov 2025 $0.64 13 Nov 2025 $0.67 14 Nov 2025 $0.66 17 Nov 2025 $0.66 18 Nov 2025 $0.62 19 Nov 2025 $0.64 20 Nov 2025 $0.62 21 Nov 2025 $0.71 24 Nov 2025 $0.83 25 Nov 2025 $0.84 26 Nov 2025 $0.79 28 Nov 2025 $0.81 1 Dec 2025 $0.75 2 Dec 2025 $0.77 3 Dec 2025 $0.73 4 Dec 2025 $0.74 5 Dec 2025 $0.73 8 Dec 2025 $0.72 9 Dec 2025 $0.75 10 Dec 2025 $0.66 11 Dec 2025 $0.71 12 Dec 2025 $0.68 15 Dec 2025 $0.63 16 Dec 2025 $0.64 17 Dec 2025 $0.64 18 Dec 2025 $0.64 19 Dec 2025 $0.64 22 Dec 2025 $0.77 23 Dec 2025 $0.70 24 Dec 2025 $0.69 26 Dec 2025 $0.68 29 Dec 2025 $0.66 30 Dec 2025 $0.64 31 Dec 2025 $0.64 2 Jan 2026 $0.66 5 Jan 2026 $0.67 6 Jan 2026 $0.68 7 Jan 2026 $0.68 8 Jan 2026 $0.67 9 Jan 2026 $0.67 12 Jan 2026 $0.70 13 Jan 2026 $0.73 14 Jan 2026 $0.72 15 Jan 2026 $0.69 16 Jan 2026 $0.70 20 Jan 2026 $0.68 21 Jan 2026 $0.68 22 Jan 2026 $0.68 23 Jan 2026 $0.68 26 Jan 2026 $0.66 27 Jan 2026 $0.68 28 Jan 2026 $0.68 29 Jan 2026 $0.66 30 Jan 2026 $0.63 2 Feb 2026 $0.68 3 Feb 2026 $0.69 4 Feb 2026 $0.67 5 Feb 2026 $0.63 6 Feb 2026 $0.67 9 Feb 2026 $0.67 10 Feb 2026 $0.67 11 Feb 2026 $0.62 12 Feb 2026 $0.64 13 Feb 2026 $0.64 17 Feb 2026 $0.64 18 Feb 2026 $0.65 19 Feb 2026 $0.65 20 Feb 2026 $0.64 23 Feb 2026 $0.68 24 Feb 2026 $0.69 25 Feb 2026 $0.71 26 Feb 2026 $0.73 27 Feb 2026 $0.75 2 Mar 2026 $0.75 3 Mar 2026 $0.80 4 Mar 2026 $0.79 5 Mar 2026 $0.81 6 Mar 2026 $0.80 9 Mar 2026 $0.81 10 Mar 2026 $0.78 11 Mar 2026 $0.73 12 Mar 2026 $0.73 13 Mar 2026 $0.71 16 Mar 2026 $0.65 17 Mar 2026 $0.68 18 Mar 2026 $0.65 19 Mar 2026 $0.64 20 Mar 2026 $0.66 23 Mar 2026 $0.67 24 Mar 2026 $0.70 25 Mar 2026 $0.67 26 Mar 2026 $0.60 27 Mar 2026 $0.59 30 Mar 2026 $0.56 31 Mar 2026 $0.57 1 Apr 2026 $0.55 2 Apr 2026 $0.58 6 Apr 2026 $0.59 7 Apr 2026 $0.61 8 Apr 2026 $0.62 9 Apr 2026 $0.60 10 Apr 2026 $0.61 13 Apr 2026 $0.59 14 Apr 2026 $0.59 15 Apr 2026 $0.59 16 Apr 2026 $0.61 17 Apr 2026 $0.66 20 Apr 2026 $0.65 21 Apr 2026 $0.62 22 Apr 2026 $0.63 23 Apr 2026 $0.65 24 Apr 2026 $0.63 27 Apr 2026 $0.61 28 Apr 2026 $0.60 29 Apr 2026 $0.64 30 Apr 2026 $0.61 1 May 2026 $0.61 4 May 2026 $0.62 5 May 2026 $0.61 6 May 2026 $0.57 7 May 2026 $0.61 8 May 2026 $0.61 11 May 2026 $0.63 12 May 2026 $0.59 13 May 2026 $0.57 14 May 2026 $0.54 15 May 2026 $0.50 18 May 2026 $0.48 19 May 2026 $0.47 20 May 2026 $0.47 21 May 2026 $0.46 22 May 2026 $0.46 26 May 2026 $0.46 27 May 2026 $0.49 28 May 2026 $0.50 29 May 2026 $0.49 1 Jun 2026 $0.47 2 Jun 2026 $0.48 3 Jun 2026 $0.49 4 Jun 2026 $0.49 5 Jun 2026 $0.46 8 Jun 2026 $0.41 9 Jun 2026 $0.42 10 Jun 2026 $0.41 11 Jun 2026 $0.39 12 Jun 2026 $0.40 15 Jun 2026 $0.43 16 Jun 2026 $0.52 17 Jun 2026 $0.48 18 Jun 2026 $0.44 22 Jun 2026 $0.41 23 Jun 2026 $0.43 24 Jun 2026 $0.47 25 Jun 2026 $0.46 26 Jun 2026 $0.36 29 Jun 2026 $0.38 30 Jun 2026 $0.37 1 Jul 2026 $0.39 2 Jul 2026 $0.39 6 Jul 2026 $0.43 7 Jul 2026 $0.41 8 Jul 2026 $0.39 9 Jul 2026 $0.37 10 Jul 2026 $0.38 13 Jul 2026 $0.38 14 Jul 2026 $0.39 15 Jul 2026 $0.39 16 Jul 2026 $0.37 17 Jul 2026 $0.36 20 Jul 2026 $0.38 21 Jul 2026 $0.39 22 Jul 2026 $0.38 23 Jul 2026 $0.36 24 Jul 2026 $0.36 27 Jul 2026 $0.36 28 Jul 2026 $0.37 29 Jul 2026 $0.35 30 Jul 2026 $0.35 31 Jul 2026 $0.36 3 Aug 2026 $0.37 4 Aug 2026 $0.38 5 Aug 2026 $0.38 6 Aug 2026 $0.40 7 Aug 2026 $0.36 10 Aug 2026 $0.36 11 Aug 2026 $0.36 12 Aug 2026 $0.37 13 Aug 2026 $0.36 14 Aug 2026 $0.40 17 Aug 2026 $0.38 18 Aug 2026 $0.36 19 Aug 2026 $0.36 20 Aug 2026 $0.31 21 Aug 2026 $0.37 24 Aug 2026 $0.37 25 Aug 2026 $0.36 26 Aug 2026 $0.36 27 Aug 2026 $0.34 28 Aug 2026 $0.34 31 Aug 2026 $0.34 1 Sep 2026 $0.34 2 Sep 2026 $0.38 3 Sep 2026 $0.35 4 Sep 2026 $0.35 8 Sep 2026 $6.85 9 Sep 2026 $6.33 10 Sep 2026 $6.37 11 Sep 2026 $6.41 14 Sep 2026 $6.07 15 Sep 2026 $6.06 16 Sep 2026 $5.73 17 Sep 2026 $5.76 18 Sep 2026 $5.75 21 Sep 2026 $5.51 22 Sep 2026 $5.32 23 Sep 2026 $4.91 24 Sep 2026 $4.30 25 Sep 2026 $4.38 28 Sep 2026 $4.02 29 Sep 2026 $4.00 30 Sep 2026 $3.90 1 Oct 2026 $4.19 2 Oct 2026 $4.05 5 Oct 2026 $3.97 6 Oct 2026 $3.96 7 Oct 2026 $3.87 8 Oct 2026 $3.73 9 Oct 2026 $3.79 Chan Phillip P. Chief Executive Officer Bought $100.45K 12 Jun 2026 · at $0.40 · 16.9% of stake Chan Phillip P. Chief Executive Officer Bought $4.44K 15 Jun 2026 · at $0.43 · 0.6% of stake MARIANI PETER J Chief Financial Officer Bought $44.00K 15 Jun 2026 · at $0.44 · 18.6% of stake Chan Phillip P. Chief Executive Officer Bought $70.00K 4 Sep 2026 · at $0.35 · 11.5% of stake Capponi Vincent President and COO Bought $12.54K 14 Sep 2026 · at $6.05 · 5.4% of stake Sobel Alan D. Director Bought $15.25K 15 Sep 2026 · at $6.10 · 33.8% of stake Chan Phillip P. Chief Executive Officer Bought $22.64K 15 Sep 2026 · at $6.00 · 3.9% of stake
7 buys0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$37.06M
Net income
$8.20M
Free cash flow
$12.54M
Gross margin
71.5%
Operating margin
-39.8%
Net margin
-22.1%
Return on equity
-138.9%
Return on capital
-31.7%
Debt to equity
5.22
Revenue growth, 1 yr
4.1%
Revenue growth, 5 yr
-2.0% a year

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
41M -8M FY20 Fiscal year 2020 Revenue $41.00M Net income $7.84M Margin -19.1% 43M -25M FY21 Fiscal year 2021 Revenue $43.17M Net income $24.56M Margin -56.9% · growth +5.3% 35M -33M FY22 Fiscal year 2022 Revenue $34.69M Net income $32.81M Margin -94.6% · growth -19.6% 31M -29M FY23 Fiscal year 2023 Revenue $31.08M Net income $29.25M Margin -94.1% · growth -10.4% 36M -21M FY24 Fiscal year 2024 Revenue $35.60M Net income $20.72M Margin -58.2% · growth +14.5% 37M -8M FY25 Fiscal year 2025 Revenue $37.06M Net income $8.20M Margin -22.1% · growth +4.1%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
15 Sep 2026 Chan Phillip P.
Chief Executive Officer
Bought $22.64K 3.9%
15 Sep 2026 Sobel Alan D.
Director
Bought $15.25K 33.8%
14 Sep 2026 Capponi Vincent
President and COO
Bought $12.54K 5.4%
4 Sep 2026 Chan Phillip P.
Chief Executive Officer
Bought $70.00K 11.5%
15 Jun 2026 MARIANI PETER J
Chief Financial Officer
Bought $44.00K 18.6%
15 Jun 2026 Chan Phillip P.
Chief Executive Officer
Bought $4.44K 0.6%