Company facts
- Headquarters
- Toronto
- Most recent report
- 6-K, filed Jul 6, 2026
- Filings on record
- 917 filings
- On EDGAR
- CIK 1113423
- Fiscal year ends
- December
- Filer status
- Non-accelerated filer
Financials 8 of 638
- 6-K Report a foreign issuer made public elsewhere Jul 6, 2026
- 6-K Report a foreign issuer made public elsewhere Jun 23, 2026
- 6-K Report a foreign issuer made public elsewhere Jun 18, 2026
- 6-K Report a foreign issuer made public elsewhere May 20, 2026
- 6-K Report a foreign issuer made public elsewhere May 12, 2026
- 6-K Report a foreign issuer made public elsewhere May 12, 2026
- 6-K Report a foreign issuer made public elsewhere May 8, 2026
- 6-K Report a foreign issuer made public elsewhere Apr 20, 2026
Prospectuses and Registrations 8 of 67
- S-8 POS Post-effective amendment to an employee plan registration Mar 13, 2026
- S-8 POS Post-effective amendment to an employee plan registration Mar 13, 2026
- S-8 POS Post-effective amendment to an employee plan registration Mar 13, 2026
- POS AM Post-effective amendment to a registration Mar 13, 2026
- POS AM Post-effective amendment to a registration Mar 13, 2026
- S-8 POS Post-effective amendment to an employee plan registration Mar 13, 2026
- POS AM Post-effective amendment to a registration Mar 13, 2026
- POS AM Post-effective amendment to a registration Mar 13, 2026
Ownership 8 of 58
- SCHEDULE 13D/A Large holder reported an active stake, amended Apr 17, 2026
- SCHEDULE 13D/A Large holder reported an active stake, amended Jun 11, 2025
- SCHEDULE 13D/A Large holder reported an active stake, amended Dec 20, 2024
- SC 13D Large holder reported an active stake Sep 6, 2024
- SC 13G Large holder reported a passive stake Jun 6, 2024
- SC 13G/A Large holder reported a passive stake, amended Feb 11, 2022
- SC 13G/A Large holder reported a passive stake, amended Feb 11, 2022
- SC 13G/A Large holder reported a passive stake, amended Feb 16, 2021
Other 8 of 154
Everything here comes from COSCIENS Biopharma Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.