Cytosorbents Corp SEC filings CTSO
Cytosorbents Corp has 977 filings in SEC EDGAR's recent list, going back to Mar 29, 2004. Its latest annual report, Form ARS, was filed on Jun 25, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 23, 2026 (regulation fd disclosure, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| EFFECT | Filing | Sep 30, 2024 | — |
| CORRESP | Letter to the SEC | Sep 27, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 31, 2024 | — |
| EFFECT | Filing | Jul 27, 2021 | — |
| CORRESP | Letter to the SEC | Jul 26, 2021 | — |
| UPLOAD | Letter from the SEC | Jul 16, 2021 | — |
| CT ORDER | Filing | Mar 19, 2019 | — |
| EFFECT | Filing | Aug 7, 2018 | — |
| CORRESP | Letter to the SEC | Aug 3, 2018 | — |
| UPLOAD | Letter from the SEC | Aug 1, 2018 | — |
| EFFECT | Filing | Oct 20, 2015 | — |
| EFFECT | Filing | Oct 20, 2015 | — |
| EFFECT | Filing | Jul 29, 2015 | — |
| CORRESP | Letter to the SEC | Jul 27, 2015 | — |
| UPLOAD | Letter from the SEC | Jul 24, 2015 | — |
| CT ORDER | Filing | May 27, 2015 | — |
| EFFECT | Filing | Jan 8, 2015 | — |
| CERTNAS | Auto-generated paper document | Dec 22, 2014 | — |
| 8-A12B | Filing | Dec 17, 2014 | — |
| EFFECT | Filing | Jun 30, 2014 | — |
| EFFECT | Filing | Feb 14, 2014 | — |
| CORRESP | Letter to the SEC | Feb 14, 2014 | — |
| UPLOAD | Letter from the SEC | Feb 12, 2014 | — |
| UPLOAD | Letter from the SEC | Feb 7, 2014 | — |
| UPLOAD | Letter from the SEC | Jan 16, 2014 | — |
| D | Filing | Oct 11, 2013 | — |
| D | Filing | Aug 5, 2013 | — |
| EFFECT | Filing | Jul 1, 2013 | — |
| EFFECT | Filing | Jun 10, 2013 | — |
| NT 10-K | Filing | Apr 2, 2013 | Dec 31, 2012 |
| EFFECT | Filing | Dec 19, 2012 | — |
| EFFECT | Filing | Feb 10, 2012 | — |
| CORRESP | Letter to the SEC | Feb 8, 2012 | — |
| UPLOAD | Letter from the SEC | Jan 13, 2012 | — |
| NT 10-Q | Filing | Nov 16, 2010 | Sep 30, 2010 |
| NT 10-Q | Filing | Aug 16, 2010 | Aug 16, 2010 |
| EFFECT | Filing | Jun 15, 2010 | — |
| RW | Filing | May 7, 2010 | — |
| NT 10-K | Filing | Mar 31, 2010 | Dec 31, 2009 |
| NT 10-K | Filing | Mar 31, 2009 | Dec 31, 2008 |
| NT 10-Q | Filing | Aug 14, 2008 | Jun 30, 2008 |
| REGDEX | Auto-generated paper document | Jul 11, 2008 | — |
| 10KSB | Filing | Apr 15, 2008 | Dec 31, 2007 |
| NT 10-K | Filing | Mar 31, 2008 | Dec 31, 2007 |
| 10QSB | Filing | Nov 15, 2007 | Sep 30, 2007 |
| NT 10-Q | Filing | Nov 15, 2007 | Sep 30, 2007 |
| 10QSB | Filing | Aug 14, 2007 | Jun 30, 2007 |
| 10QSB | Filing | May 15, 2007 | Mar 31, 2007 |
| EFFECT | Filing | May 7, 2007 | — |
| CORRESP | Letter to the SEC | May 7, 2007 | — |
| CORRESP | Letter to the SEC | May 4, 2007 | — |
| 10KSB/A | Filing | Apr 30, 2007 | Dec 31, 2006 |
| SB-2/A | Filing | Apr 26, 2007 | — |
| UPLOAD | Letter from the SEC | Apr 20, 2007 | — |
| SB-2/A | Filing | Apr 4, 2007 | — |
| 10KSB | Filing | Mar 30, 2007 | Dec 31, 2006 |
| CORRESP | Letter to the SEC | Mar 12, 2007 | — |
| UPLOAD | Letter from the SEC | Feb 23, 2007 | — |
| SB-2/A | Filing | Jan 25, 2007 | — |
| UPLOAD | Letter from the SEC | Jan 10, 2007 | — |
| SB-2/A | Filing | Dec 13, 2006 | — |
| CORRESP | Letter to the SEC | Dec 13, 2006 | — |
| UPLOAD | Letter from the SEC | Nov 21, 2006 | — |
| 10QSB | Filing | Nov 14, 2006 | Sep 30, 2006 |
| SB-2 | Filing | Oct 27, 2006 | — |
| 10QSB/A | Filing | Aug 16, 2006 | Jun 30, 2006 |
| 10QSB | Filing | Aug 14, 2006 | Jun 30, 2006 |
| REGDEX | Auto-generated paper document | Jul 17, 2006 | — |
| UPLOAD | Letter from the SEC | Jul 11, 2006 | — |
| 10QSB | Report for the quarterly period ended february 28, 2006 | Apr 10, 2006 | Feb 28, 2006 |
| 10QSB | Quarterly report for the period ended november 30, 2005 | Jan 17, 2006 | Nov 30, 2005 |
| 10QSB | Quarterly report for the fiscal period ended august 31, 2005 | Oct 17, 2005 | Aug 31, 2005 |
| 10KSB | Annual report for the fiscal year ended may 31, 2005 | Aug 19, 2005 | May 31, 2005 |
| 10QSB | Filing | Apr 14, 2005 | Feb 28, 2005 |
| 10QSB | Quarterly report for the period ended november 30, 2004 | Jan 13, 2005 | Nov 30, 2004 |
| 8-A12G | Registration of certain classes of securities | Nov 22, 2004 | — |
| SB-2/A | Amendment no. 6 to the registration statement under the securities act of 1933 | Nov 3, 2004 | — |
| SB-2/A | Amendment no. 5 to registration statement under the securities act of 1933 | Oct 6, 2004 | — |
| SB-2/A | Amendment no. 4 to registration statement under the securities act of 1933 | Sep 15, 2004 | — |
| SB-2/A | Amendment no. 3 to registration statement under the securities act of 1933 | Sep 8, 2004 | — |
| SB-2/A | Amendment no. 2 to registration statement under the securities act of 1933 | Aug 10, 2004 | — |
| SB-2/A | Amendment no. 1 to registration statement under the securities act of 1933 | Jun 9, 2004 | — |
| SB-2 | Registration statement under the securities act of 1933 | Mar 29, 2004 | — |
Showing 83 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Surgical & Medical Instruments & Apparatus (SIC 3841)
- Listed as
- CTSO (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Princeton, NJ
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1175151
- Former names
- MedaSorb Technologies CORP (until Apr 15, 2010); GILDER ENTERPRISES INC (until Jul 24, 2006)
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All 151 Surgical & Medical Instruments & Apparatus companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.