COSCIENS Biopharma Inc. SEC filings CSCIF
COSCIENS Biopharma Inc. has 917 filings in SEC EDGAR's recent list, going back to Oct 24, 2000. Its latest annual report, Form 20-F, was filed on Mar 25, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Jul 6, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 15-12G | Deregistration | Jul 6, 2026 | — |
| SC 13E3/A | Filing | Jul 6, 2026 | — |
| 6-K | Current report (foreign issuer) | Jul 6, 2026 | Jul 6, 2026 |
| SC 13E3/A | Filing | Jun 23, 2026 | — |
| 6-K | Current report (foreign issuer) | Jun 23, 2026 | Jun 22, 2026 |
| 6-K | Current report (foreign issuer) | Jun 18, 2026 | Jun 18, 2026 |
| SC 13E3/A | Filing | Jun 18, 2026 | — |
| SC 13E3/A | Filing | May 20, 2026 | — |
| 6-K | Current report (foreign issuer) | May 20, 2026 | May 20, 2026 |
| SC 13E3/A | Filing | May 12, 2026 | — |
| 6-K | Current report (foreign issuer) | May 12, 2026 | May 12, 2026 |
| 6-K | Current report (foreign issuer) | May 12, 2026 | Mar 31, 2026 |
| SC 13E3/A | Filing | May 8, 2026 | — |
| 6-K | Current report (foreign issuer) | May 8, 2026 | May 8, 2026 |
| SC 13E3/A | Filing | May 4, 2026 | — |
| SC 13E3 | Filing | Apr 20, 2026 | — |
| 6-K | Current report (foreign issuer) | Apr 20, 2026 | Apr 20, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 17, 2026 | — |
| 6-K | Current report (foreign issuer) | Apr 7, 2026 | Apr 7, 2026 |
| 20-F | Annual report (foreign issuer) | Mar 25, 2026 | Dec 31, 2025 |
| 6-K | Current report (foreign issuer) | Mar 25, 2026 | Mar 25, 2026 |
| EFFECT | Filing | Mar 18, 2026 | — |
| EFFECT | Filing | Mar 18, 2026 | — |
| EFFECT | Filing | Mar 18, 2026 | — |
| EFFECT | Filing | Mar 18, 2026 | — |
| EFFECT | Filing | Mar 18, 2026 | — |
| S-8 POS | Filing | Mar 13, 2026 | — |
| S-8 POS | Filing | Mar 13, 2026 | — |
| S-8 POS | Filing | Mar 13, 2026 | — |
| POS AM | Filing | Mar 13, 2026 | — |
| POS AM | Filing | Mar 13, 2026 | — |
| S-8 POS | Filing | Mar 13, 2026 | — |
| POS AM | Filing | Mar 13, 2026 | — |
| POS AM | Filing | Mar 13, 2026 | — |
| POS AM | Filing | Mar 13, 2026 | — |
| 6-K | Current report (foreign issuer) | Mar 5, 2026 | Mar 5, 2026 |
| 6-K | Current report (foreign issuer) | Feb 13, 2026 | Feb 13, 2026 |
| 6-K | Current report (foreign issuer) | Dec 1, 2025 | Dec 1, 2025 |
| 6-K | Current report (foreign issuer) | Nov 14, 2025 | Nov 14, 2025 |
| 6-K | Current report (foreign issuer) | Nov 12, 2025 | Sep 30, 2025 |
| 6-K | Current report (foreign issuer) | Nov 12, 2025 | Nov 12, 2025 |
| 25 | Filing | Aug 26, 2025 | — |
| 6-K | Current report (foreign issuer) | Aug 14, 2025 | Jun 30, 2025 |
| 6-K | Current report (foreign issuer) | Aug 14, 2025 | Aug 14, 2025 |
| 6-K | Current report (foreign issuer) | Jun 30, 2025 | Jun 30, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 11, 2025 | — |
| 6-K | Current report (foreign issuer) | Jun 9, 2025 | Jun 9, 2025 |
| 6-K | Current report (foreign issuer) | Jun 2, 2025 | May 30, 2025 |
| 6-K | Current report (foreign issuer) | May 30, 2025 | May 30, 2025 |
| 6-K | Current report (foreign issuer) | May 27, 2025 | May 27, 2025 |
| 6-K | Current report (foreign issuer) | May 20, 2025 | May 20, 2025 |
| 6-K | Current report (foreign issuer) | May 13, 2025 | Mar 31, 2025 |
| 6-K | Current report (foreign issuer) | May 13, 2025 | May 13, 2025 |
| 6-K | Current report (foreign issuer) | May 2, 2025 | May 2, 2025 |
| 6-K | Current report (foreign issuer) | Apr 14, 2025 | Apr 14, 2025 |
| 20-F | Annual report (foreign issuer) | Apr 9, 2025 | Dec 31, 2024 |
| 6-K | Current report (foreign issuer) | Apr 9, 2025 | Apr 9, 2025 |
| 6-K | Current report (foreign issuer) | Apr 2, 2025 | Apr 2, 2025 |
| 6-K | Current report (foreign issuer) | Mar 20, 2025 | Mar 19, 2025 |
| 6-K | Current report (foreign issuer) | Mar 13, 2025 | Mar 13, 2025 |
| 6-K | Current report (foreign issuer) | Dec 23, 2024 | Dec 23, 2024 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 20, 2024 | — |
| 6-K | Current report (foreign issuer) | Nov 12, 2024 | Sep 30, 2024 |
| 6-K | Current report (foreign issuer) | Nov 12, 2024 | Nov 12, 2024 |
| 6-K | Current report (foreign issuer) | Oct 8, 2024 | Oct 8, 2024 |
| 6-K | Current report (foreign issuer) | Oct 1, 2024 | Oct 1, 2024 |
| 6-K | Current report (foreign issuer) | Sep 23, 2024 | Sep 23, 2024 |
| SC 13D | Ownership over 5% (active) | Sep 6, 2024 | — |
| 6-K | Current report (foreign issuer) | Aug 27, 2024 | Aug 27, 2024 |
| 6-K | Current report (foreign issuer) | Aug 13, 2024 | Jun 30, 2024 |
| 6-K | Current report (foreign issuer) | Aug 13, 2024 | Aug 13, 2024 |
| 6-K | Current report (foreign issuer) | Aug 7, 2024 | Aug 6, 2024 |
| UPLOAD | Letter from the SEC | Jul 24, 2024 | — |
| 6-K | Current report (foreign issuer) | Jul 17, 2024 | Jul 16, 2024 |
| 20-F/A | Amended annual report (foreign issuer) | Jul 17, 2024 | Dec 31, 2023 |
| CORRESP | Letter to the SEC | Jul 16, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 5, 2024 | — |
| 6-K | Current report (foreign issuer) | Jun 25, 2024 | Jun 25, 2024 |
| 6-K | Current report (foreign issuer) | Jun 13, 2024 | Jun 13, 2024 |
| 424B3 | Prospectus | Jun 11, 2024 | — |
| 424B3 | Prospectus | Jun 11, 2024 | — |
| 424B3 | Prospectus | Jun 11, 2024 | — |
| 424B3 | Prospectus | Jun 11, 2024 | — |
| 6-K | Current report (foreign issuer) | Jun 10, 2024 | Jun 10, 2024 |
| SC 13G | Ownership over 5% (passive) | Jun 6, 2024 | — |
| EFFECT | Filing | Jun 4, 2024 | — |
| EFFECT | Filing | Jun 4, 2024 | — |
| EFFECT | Filing | Jun 4, 2024 | — |
| S-8 | Employee stock plan registration | May 31, 2024 | — |
| POS AM | Filing | May 31, 2024 | — |
| POS AM | Filing | May 31, 2024 | — |
| POS AM | Filing | May 31, 2024 | — |
| 6-K/A | Filing | May 30, 2024 | May 29, 2023 |
| 6-K | Current report (foreign issuer) | May 17, 2024 | May 17, 2023 |
| FWP | Free writing prospectus | May 17, 2024 | — |
| EFFECT | Filing | May 16, 2024 | — |
| 6-K | Current report (foreign issuer) | May 16, 2024 | Mar 31, 2024 |
| FWP | Free writing prospectus | May 16, 2024 | — |
| FWP | Free writing prospectus | May 16, 2024 | — |
| CORRESP | Letter to the SEC | May 15, 2024 | — |
| 6-K | Current report (foreign issuer) | May 15, 2024 | May 14, 2024 |
| 6-K | Current report (foreign issuer) | May 15, 2024 | May 14, 2024 |
| 6-K | Current report (foreign issuer) | May 14, 2024 | May 13, 2024 |
| F-1/A | Filing | May 14, 2024 | — |
| 6-K | Current report (foreign issuer) | May 9, 2024 | May 8, 2024 |
| 6-K | Current report (foreign issuer) | May 1, 2024 | May 1, 2024 |
| F-1/A | Filing | Apr 30, 2024 | — |
| CORRESP | Letter to the SEC | Apr 29, 2024 | — |
| 6-K | Current report (foreign issuer) | Mar 28, 2024 | Feb 29, 2024 |
| 20-F | Annual report (foreign issuer) | Mar 27, 2024 | Dec 31, 2023 |
| 6-K | Current report (foreign issuer) | Mar 27, 2024 | Mar 27, 2024 |
| 6-K | Current report (foreign issuer) | Mar 27, 2024 | Mar 27, 2024 |
| 6-K | Current report (foreign issuer) | Mar 13, 2024 | Feb 29, 2024 |
| UPLOAD | Letter from the SEC | Feb 27, 2024 | — |
| 6-K | Current report (foreign issuer) | Feb 27, 2024 | Feb 26, 2024 |
| 6-K | Current report (foreign issuer) | Feb 27, 2024 | Feb 26, 2024 |
| 6-K | Current report (foreign issuer) | Feb 20, 2024 | Feb 16, 2024 |
| F-1 | Registration statement (foreign issuer) | Feb 15, 2024 | — |
| 20-F/A | Amended annual report (foreign issuer) | Feb 15, 2024 | Dec 31, 2022 |
| 6-K/A | Filing | Dec 22, 2023 | Dec 22, 2023 |
| 6-K | Current report (foreign issuer) | Dec 22, 2023 | Dec 21, 2023 |
| 6-K | Current report (foreign issuer) | Dec 14, 2023 | Dec 14, 2023 |
| 6-K | Current report (foreign issuer) | Nov 9, 2023 | Sep 30, 2023 |
| 6-K | Current report (foreign issuer) | Nov 9, 2023 | Nov 9, 2023 |
| 6-K | Current report (foreign issuer) | Aug 9, 2023 | Jun 30, 2023 |
| 6-K | Current report (foreign issuer) | Aug 9, 2023 | Aug 9, 2023 |
| 6-K | Current report (foreign issuer) | Jul 13, 2023 | Jul 13, 2023 |
| 6-K | Current report (foreign issuer) | Jun 14, 2023 | Jun 14, 2023 |
| 6-K | Current report (foreign issuer) | Jun 14, 2023 | Jun 14, 2023 |
| 6-K | Current report (foreign issuer) | May 23, 2023 | May 23, 2023 |
| 6-K | Current report (foreign issuer) | May 15, 2023 | May 15, 2023 |
| EFFECT | Filing | May 10, 2023 | — |
| EFFECT | Filing | May 10, 2023 | — |
| EFFECT | Filing | May 10, 2023 | — |
| 6-K | Current report (foreign issuer) | May 9, 2023 | Mar 31, 2023 |
| 6-K | Current report (foreign issuer) | May 9, 2023 | May 9, 2023 |
| POS AM | Filing | May 5, 2023 | — |
| POS AM | Filing | May 5, 2023 | — |
| POS AM | Filing | May 5, 2023 | — |
| 6-K | Current report (foreign issuer) | Apr 5, 2023 | Apr 5, 2023 |
| 6-K | Current report (foreign issuer) | Mar 31, 2023 | Mar 31, 2023 |
| 20-F | Annual report (foreign issuer) | Mar 23, 2023 | Dec 31, 2022 |
| 6-K | Current report (foreign issuer) | Mar 23, 2023 | Mar 23, 2023 |
| 6-K | Current report (foreign issuer) | Mar 23, 2023 | Mar 23, 2023 |
| 6-K | Current report (foreign issuer) | Mar 16, 2023 | Mar 16, 2023 |
| 6-K | Current report (foreign issuer) | Jan 17, 2023 | Jan 17, 2023 |
| 6-K | Current report (foreign issuer) | Nov 3, 2022 | Sep 30, 2022 |
| 6-K | Current report (foreign issuer) | Nov 3, 2022 | Nov 3, 2022 |
| 6-K | Current report (foreign issuer) | Aug 29, 2022 | Aug 29, 2022 |
| 6-K/A | Filing | Aug 4, 2022 | Jun 30, 2022 |
| 6-K | Current report (foreign issuer) | Aug 3, 2022 | Aug 3, 2022 |
| 6-K | Current report (foreign issuer) | Aug 3, 2022 | Aug 3, 2022 |
| 6-K | Current report (foreign issuer) | Jul 26, 2022 | Jul 26, 2022 |
| 6-K | Current report (foreign issuer) | Jul 19, 2022 | Jul 19, 2022 |
| 6-K | Current report (foreign issuer) | Jul 18, 2022 | Jul 18, 2022 |
| 6-K | Current report (foreign issuer) | Jul 15, 2022 | Jul 15, 2022 |
| 6-K | Current report (foreign issuer) | Jul 6, 2022 | Jul 6, 2022 |
| 6-K | Current report (foreign issuer) | Jun 21, 2022 | Jun 21, 2022 |
| 6-K | Current report (foreign issuer) | Jun 21, 2022 | Jun 21, 2022 |
| 6-K | Current report (foreign issuer) | May 31, 2022 | May 31, 2022 |
| EFFECT | Filing | May 19, 2022 | — |
| EFFECT | Filing | May 19, 2022 | — |
| EFFECT | Filing | May 19, 2022 | — |
| 6-K | Current report (foreign issuer) | May 17, 2022 | May 17, 2022 |
| 6-K | Current report (foreign issuer) | May 16, 2022 | May 16, 2022 |
| POS AM | Filing | May 13, 2022 | — |
| POS AM | Filing | May 13, 2022 | — |
| POS AM | Filing | May 13, 2022 | — |
| 6-K | Current report (foreign issuer) | May 12, 2022 | May 11, 2022 |
| 6-K | Current report (foreign issuer) | May 11, 2022 | Mar 31, 2022 |
| 6-K | Current report (foreign issuer) | Apr 20, 2022 | Apr 19, 2022 |
| 6-K/A | Filing | Mar 31, 2022 | Mar 31, 2022 |
| 6-K | Current report (foreign issuer) | Mar 29, 2022 | Mar 29, 2022 |
| 6-K | Current report (foreign issuer) | Mar 29, 2022 | Mar 28, 2022 |
| 20-F | Annual report (foreign issuer) | Mar 29, 2022 | Dec 31, 2021 |
| 6-K | Current report (foreign issuer) | Mar 11, 2022 | Mar 10, 2022 |
| 6-K | Current report (foreign issuer) | Mar 2, 2022 | Mar 2, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| 6-K | Current report (foreign issuer) | Jan 26, 2022 | Jan 26, 2022 |
| 6-K | Current report (foreign issuer) | Jan 26, 2022 | Jan 26, 2022 |
| 6-K | Current report (foreign issuer) | Dec 23, 2021 | Dec 23, 2021 |
| 6-K | Current report (foreign issuer) | Nov 4, 2021 | Sep 30, 2021 |
| 6-K | Current report (foreign issuer) | Oct 7, 2021 | Oct 7, 2021 |
| 6-K | Current report (foreign issuer) | Sep 13, 2021 | Sep 13, 2021 |
| 6-K | Current report (foreign issuer) | Sep 9, 2021 | Sep 9, 2021 |
| 6-K | Current report (foreign issuer) | Aug 5, 2021 | Jun 30, 2021 |
| 6-K | Current report (foreign issuer) | Jul 29, 2021 | Jul 29, 2021 |
| 6-K | Current report (foreign issuer) | Jun 9, 2021 | Jun 9, 2021 |
| 6-K | Current report (foreign issuer) | Jun 3, 2021 | Jun 3, 2021 |
| 6-K | Current report (foreign issuer) | May 17, 2021 | May 17, 2021 |
| 6-K | Current report (foreign issuer) | May 13, 2021 | May 13, 2021 |
| 6-K | Current report (foreign issuer) | May 6, 2021 | May 6, 2021 |
| 6-K | Current report (foreign issuer) | May 6, 2021 | May 6, 2021 |
| 6-K | Current report (foreign issuer) | May 6, 2021 | May 6, 2021 |
| 6-K | Current report (foreign issuer) | May 5, 2021 | Mar 31, 2021 |
| 6-K | Current report (foreign issuer) | Apr 9, 2021 | Apr 9, 2021 |
| EFFECT | Filing | Apr 7, 2021 | — |
| EFFECT | Filing | Apr 7, 2021 | — |
| EFFECT | Filing | Apr 7, 2021 | — |
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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Perfumes, Cosmetics & Other Toilet Preparations (SIC 2844)
- Listed as
- CSCIF (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- Ontario, Canada
- Headquarters
- Toronto, Ontario, Canada
- SEC filer status
- Non-accelerated filer
- SEC CIK
- 1113423
- Former names
- Aeterna Zentaris Inc. (until Aug 7, 2024); AETERNA LABORATORIES INC (until May 25, 2004)
Other Perfumes, Cosmetics & Other Toilet Preparations companies
- Colgate Palmolive Co CL
- Haleon plc HLN
- Estee Lauder Companies Inc EL
- e.l.f. Beauty, Inc. ELF
- Interparfums Inc IPAR
- Coty Inc. COTY
- EDGEWELL PERSONAL CARE Co EPC
- Oddity Tech Ltd ODD
All 22 Perfumes, Cosmetics & Other Toilet Preparations companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.