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 |
|---|---|---|---|
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 23, 2026 | Sep 22, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Sep 8, 2026 | Sep 8, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Aug 14, 2026 | Aug 13, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 7, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Listing notice
|
Jul 6, 2026 | Jun 29, 2026 |
| ARS | Annual report to shareholders | Jun 25, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Jun 25, 2026 | — |
| DEF 14A | Proxy statement | Jun 25, 2026 | Aug 13, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 25, 2026 | Jun 24, 2026 |
| PRE 14A | Preliminary proxy statement | Jun 11, 2026 | Jun 11, 2026 |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 13, 2026 | May 13, 2026 |
| 10-K/A | Amended annual report | Apr 15, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Listing notice
|
Apr 2, 2026 | Apr 1, 2026 |
| 10-K | Annual report | Mar 30, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 25, 2026 | Mar 25, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2025 | Nov 13, 2025 |
| 10-Q | Quarterly report | Nov 13, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Listing notice
|
Oct 3, 2025 | Oct 2, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 16, 2025 | Sep 16, 2025 |
| 8-K |
Current report
Other events
|
Aug 20, 2025 | Aug 14, 2025 |
| 8-K |
Current report
Acquisition or sale of assets
|
Aug 7, 2025 | Aug 7, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Other events
|
Aug 1, 2025 | Jul 31, 2025 |
| 8-K |
Current report
Other events
|
Jul 2, 2025 | Jul 2, 2025 |
| 8-K |
Current report
Other events
|
Jun 24, 2025 | Jun 24, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 13, 2025 | Jun 12, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 11, 2025 | Jun 10, 2025 |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 14, 2025 | May 14, 2025 |
| 8-K |
Current report
Other events
|
May 1, 2025 | Apr 25, 2025 |
| ARS | Annual report to shareholders | Apr 23, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 23, 2025 | — |
| DEF 14A | Proxy statement | Apr 23, 2025 | Jun 12, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 17, 2025 | Apr 17, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 15, 2025 | Apr 14, 2025 |
| 8-K |
Current report
Other events
|
Apr 4, 2025 | Apr 4, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2025 | Mar 31, 2025 |
| 10-K | Annual report | Mar 31, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Restatement
|
Mar 31, 2025 | Mar 25, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 21, 2025 | Mar 21, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 4, 2025 | Mar 4, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 25, 2025 | Feb 25, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 13, 2025 | Jan 13, 2025 |
| 8-K |
Current report
Other events
|
Jan 6, 2025 | Jan 6, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 3, 2025 | Jan 3, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 23, 2024 | Dec 23, 2024 |
| FWP | Free writing prospectus | Dec 9, 2024 | — |
| 424B5 | Prospectus supplement | Dec 9, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 9, 2024 | Dec 9, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K |
Current report
Other events
|
Oct 1, 2024 | Oct 1, 2024 |
| 424B5 | Prospectus supplement | Oct 1, 2024 | — |
| 8-K |
Current report
Results of operations, Other events
|
Oct 1, 2024 | Oct 1, 2024 |
| EFFECT | Filing | Sep 30, 2024 | — |
| CORRESP | Letter to the SEC | Sep 27, 2024 | — |
| S-3/A | Form s-3/a | Sep 26, 2024 | — |
| 8-K |
Current report
Material agreement
|
Aug 20, 2024 | Aug 16, 2024 |
| S-8 | Employee stock plan registration | Aug 16, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Aug 16, 2024 | Aug 13, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2024 | Aug 13, 2024 |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Other events
|
Aug 1, 2024 | Jul 26, 2024 |
| UPLOAD | Letter from the SEC | Jul 31, 2024 | — |
| S-3 | Shelf registration | Jul 26, 2024 | — |
| 424B5 | Prospectus supplement | Jul 26, 2024 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jul 5, 2024 | Jun 28, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 10, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Listing notice
|
May 22, 2024 | May 20, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 6, 2024 | May 2, 2024 |
| ARS | Annual report to shareholders | Apr 19, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 19, 2024 | — |
| DEF 14A | Proxy statement | Apr 19, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Officer or director change
|
Apr 3, 2024 | Mar 29, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 15, 2024 | Mar 14, 2024 |
| 10-K | Annual report | Mar 15, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Listing notice, Other events
|
Jan 17, 2024 | Jan 17, 2024 |
| 8-K |
Current report
Other events
|
Dec 28, 2023 | Dec 28, 2023 |
| 8-K |
Current report
Other events
|
Dec 13, 2023 | Dec 13, 2023 |
| 424B5 | Prospectus supplement | Dec 11, 2023 | — |
| 8-K |
Current report
Material agreement, Other events
|
Dec 11, 2023 | Dec 11, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Other events
|
Sep 27, 2023 | Sep 27, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Sep 19, 2023 | Sep 18, 2023 |
| 8-K |
Current report
Other events
|
Sep 12, 2023 | Sep 11, 2023 |
| 8-K |
Current report
Officer or director change
|
Sep 1, 2023 | Aug 28, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 11, 2023 | Aug 11, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 1, 2023 |
| 10-Q | Quarterly report | Aug 1, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jul 19, 2023 | Jul 19, 2023 |
| 8-K |
Current report
Officer or director change
|
Jul 11, 2023 | Jul 7, 2023 |
| 8-K |
Current report
Other events
|
Jul 7, 2023 | Jul 7, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 7, 2023 | Jun 6, 2023 |
| 8-K |
Current report
Results of operations
|
May 2, 2023 | May 2, 2023 |
| 10-Q | Quarterly report | May 2, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Other events
|
Apr 26, 2023 | Apr 20, 2023 |
| ARS | Annual report to shareholders | Apr 21, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 21, 2023 | — |
| DEF 14A | Proxy statement | Apr 21, 2023 | Jun 6, 2023 |
| 8-K |
Current report
Officer or director change
|
Apr 20, 2023 | Apr 17, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Apr 6, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2023 | Mar 9, 2023 |
| 10-K | Annual report | Mar 9, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 1, 2023 | Jan 31, 2023 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 29, 2022 | Dec 28, 2022 |
| 8-K |
Current report
Other events
|
Nov 16, 2022 | Nov 14, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2022 | Nov 3, 2022 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Officer or director change
|
Oct 6, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Other events
|
Sep 28, 2022 | Sep 27, 2022 |
| 8-K |
Current report
New debt, Officer or director change
|
Aug 15, 2022 | Aug 10, 2022 |
| 8-K |
Current report
Material agreement, Results of operations, Other events
|
Aug 2, 2022 | Aug 1, 2022 |
| 10-Q | Quarterly report | Aug 2, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2022 | Jun 7, 2022 |
| 8-K |
Current report
Other events
|
Jun 3, 2022 | Jun 1, 2022 |
| 8-K |
Current report
Other events
|
Jun 1, 2022 | Jun 1, 2022 |
| 8-K |
Current report
Results of operations
|
May 4, 2022 | May 3, 2022 |
| 10-Q | Quarterly report | May 3, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Other events
|
Apr 29, 2022 | Apr 29, 2022 |
| 8-K |
Current report
Other events
|
Apr 28, 2022 | Apr 28, 2022 |
| DEFA14A | Additional proxy material | Apr 22, 2022 | — |
| DEF 14A | Proxy statement | Apr 22, 2022 | Jun 7, 2022 |
| 8-K |
Current report
Other events
|
Apr 14, 2022 | Apr 14, 2022 |
| 8-K |
Current report
Other events
|
Apr 7, 2022 | Apr 7, 2022 |
| 8-K |
Current report
Officer or director change
|
Apr 5, 2022 | Apr 1, 2022 |
| 8-K |
Current report
Other events
|
Mar 17, 2022 | Mar 17, 2022 |
| 10-K | Annual report | Mar 10, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 8, 2022 | Mar 8, 2022 |
| 8-K |
Current report
Other events
|
Feb 1, 2022 | Feb 1, 2022 |
| 8-K |
Current report
Other events
|
Jan 24, 2022 | Jan 24, 2022 |
| 8-K |
Current report
Material agreement
|
Jan 20, 2022 | Jan 19, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 18, 2022 | Jan 18, 2022 |
| 8-K |
Current report
Material agreement
|
Dec 30, 2021 | Dec 30, 2021 |
| 424B5 | Prospectus supplement | Dec 30, 2021 | — |
| 8-K |
Current report
Other events
|
Dec 21, 2021 | Dec 20, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2021 | Nov 4, 2021 |
| 10-Q | Quarterly report | Nov 4, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Other events
|
Oct 21, 2021 | Oct 20, 2021 |
| 8-K |
Current report
Other events
|
Oct 15, 2021 | Oct 14, 2021 |
| 8-K |
Current report
Results of operations, Other events
|
Oct 13, 2021 | Oct 12, 2021 |
| 8-K |
Current report
Other events
|
Oct 8, 2021 | Oct 7, 2021 |
| 8-K |
Current report
Other events
|
Sep 14, 2021 | Sep 14, 2021 |
| 8-K |
Current report
Other events
|
Sep 10, 2021 | Sep 10, 2021 |
| 8-K |
Current report
Other events
|
Sep 1, 2021 | Aug 30, 2021 |
| 8-K |
Current report
Other events
|
Aug 12, 2021 | Aug 12, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2021 | Aug 3, 2021 |
| 10-Q | Quarterly report | Aug 3, 2021 | Jun 30, 2021 |
| EFFECT | Filing | Jul 27, 2021 | — |
| 8-K |
Current report
Agreement ended
|
Jul 27, 2021 | Jul 27, 2021 |
| CORRESP | Letter to the SEC | Jul 26, 2021 | — |
| S-3/A | Filing | Jul 20, 2021 | — |
| UPLOAD | Letter from the SEC | Jul 16, 2021 | — |
| S-3 | Shelf registration | Jul 14, 2021 | — |
| 8-K |
Current report
Other events
|
Jul 6, 2021 | Jul 6, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 2, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Results of operations
|
May 5, 2021 | May 4, 2021 |
| 10-Q | Quarterly report | May 4, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Other events
|
Apr 20, 2021 | Apr 19, 2021 |
| DEFA14A | Additional proxy material | Apr 19, 2021 | — |
| DEF 14A | Proxy statement | Apr 19, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Officer or director change
|
Apr 15, 2021 | Apr 12, 2021 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Apr 8, 2021 | Apr 7, 2021 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Mar 31, 2021 | Mar 26, 2021 |
| 8-K |
Current report
Other events
|
Mar 17, 2021 | Mar 16, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2021 | Mar 9, 2021 |
| 10-K | Annual report | Mar 9, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Other events
|
Feb 18, 2021 | Feb 18, 2021 |
| 8-K |
Current report
Results of operations
|
Jan 12, 2021 | Jan 12, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 10, 2020 | Dec 4, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2020 | Nov 4, 2020 |
| 10-Q | Quarterly report | Nov 4, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2020 | Aug 4, 2020 |
| 10-Q | Quarterly report | Aug 4, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Other events
|
Jul 24, 2020 | Jul 24, 2020 |
| 424B5 | Prospectus supplement | Jul 22, 2020 | — |
| 8-K |
Current report
Material agreement
|
Jul 22, 2020 | Jul 21, 2020 |
| FWP | Free writing prospectus | Jul 22, 2020 | — |
| 8-K |
Current report
Other events
|
Jul 22, 2020 | Jul 21, 2020 |
| 424B5 | Prospectus supplement | Jul 20, 2020 | — |
| 8-K |
Current report
Results of operations, Other events
|
Jul 20, 2020 | Jul 20, 2020 |
| 8-K |
Current report
Other events
|
Jun 26, 2020 | Jun 24, 2020 |
| 8-K |
Current report
Other events
|
Jun 11, 2020 | Jun 9, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 4, 2020 | Jun 2, 2020 |
| 8-K |
Current report
Other events
|
May 12, 2020 | May 12, 2020 |
| 8-K |
Current report
Results of operations
|
May 5, 2020 | May 5, 2020 |
| 10-Q | Quarterly report | May 5, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Officer or director change
|
May 4, 2020 | Apr 28, 2020 |
| 8-K |
Current report
Other events
|
Apr 30, 2020 | Apr 28, 2020 |
| 8-K |
Current report
Other events
|
Apr 30, 2020 | Apr 29, 2020 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 27, 2020 | Apr 12, 2020 |
| DEFA14A | Additional proxy material | Apr 21, 2020 | — |
| DEF 14A | Proxy statement | Apr 20, 2020 | Jun 2, 2020 |
| 8-K |
Current report
Material agreement
|
Apr 20, 2020 | Apr 20, 2020 |
| 424B5 | Prospectus supplement | Apr 20, 2020 | — |
Showing 200 filings, the most recent 200. 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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Source: SEC EDGAR filings. This is company-reported data, not investment advice.