Cytosorbents Corp (CTSO) Historical Stock Prices

Cytosorbents Corp (CTSO) is a publicly traded company on the Nasdaq, categorized under SIC 3841 (Surgical & Medical Instruments & Apparatus). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.

Ticker: CTSO CIK: 1175151 Exchange: Nasdaq SIC 3841: Surgical & Medical Instruments & Apparatus Fiscal Year End: 12/31 State: DE

Independent PCAOB Auditor

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Audit Firm WithumSmith+Brown, PC
Auditor SinceSince 12/31/2016 12:00:00 AM
Lead Engagement PartnerTaryn Bostjancic
Audit LocationEast Brunswick, New Jersey, United States

Latest SEC EDGAR Filings

Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions
Form Filing Date Reporting Period Description Accession Number Actions
8-K 2026-09-23 2026-09-22 FORM 8-K 0001104659-26-109814 View SEC Doc Filr Page
4 2026-09-16 2026-09-15 OWNERSHIP DOCUMENT 0001104659-26-108326 View SEC Doc Filr Page
4 2026-09-16 2026-09-14 OWNERSHIP DOCUMENT 0001104659-26-108247 View SEC Doc Filr Page
4 2026-09-16 2026-09-15 OWNERSHIP DOCUMENT 0001104659-26-108246 View SEC Doc Filr Page
4 2026-09-09 2026-09-04 OWNERSHIP DOCUMENT 0001104659-26-106308 View SEC Doc Filr Page
8-K 2026-09-08 2026-09-08 FORM 8-K 0001104659-26-105901 View SEC Doc Filr Page
8-K 2026-08-14 2026-08-13 FORM 8-K 0001104659-26-097092 View SEC Doc Filr Page
8-K 2026-08-07 2026-08-06 FORM 8-K 0001104659-26-092691 View SEC Doc Filr Page
8-K 2026-08-06 2026-08-06 FORM 8-K 0001104659-26-092039 View SEC Doc Filr Page
10-Q 2026-08-06 2026-06-30 10-Q 0001104659-26-092006 View SEC Doc Filr Page
8-K 2026-07-06 2026-06-29 FORM 8-K 0001104659-26-080741 View SEC Doc Filr Page
ARS 2026-06-25 2025-12-31 ARS 0001104659-26-077808 View SEC Doc Filr Page
DEFA14A 2026-06-25 — DEFA14A 0001104659-26-077803 View SEC Doc Filr Page
DEF 14A 2026-06-25 2026-08-13 FORM DEF 14A 0001104659-26-077798 View SEC Doc Filr Page
8-K 2026-06-25 2026-06-24 FORM 8-K 0001104659-26-077584 View SEC Doc Filr Page
4 2026-06-16 2026-06-15 OWNERSHIP DOCUMENT 0001104659-26-074291 View SEC Doc Filr Page
4 2026-06-15 2026-06-12 OWNERSHIP DOCUMENT 0001104659-26-074164 View SEC Doc Filr Page
PRE 14A 2026-06-11 2026-06-11 PRE 14A 0001104659-26-073005 View SEC Doc Filr Page
10-Q 2026-05-13 2026-03-31 10-Q 0001104659-26-060270 View SEC Doc Filr Page
8-K 2026-05-13 2026-05-13 8-K Filing 0000929638-26-001834 View SEC Doc Filr Page
10-K/A 2026-04-15 2025-12-31 10-K/A 0001104659-26-043852 View SEC Doc Filr Page
8-K 2026-04-02 2026-04-01 FORM 8-K 0001104659-26-038859 View SEC Doc Filr Page
10-K 2026-03-30 2025-12-31 10-K 0001104659-26-036451 View SEC Doc Filr Page
8-K 2026-03-25 2026-03-25 8-K Filing 0000929638-26-001150 View SEC Doc Filr Page
SCHEDULE 13G/A 2026-02-13 — SCHEDULE 13G/A Filing 0001033475-26-000003 View SEC Doc Filr Page