Quick Takeaways
- Ikarian Capital, LLC filed SCHEDULE 13G/A for Alpha Cognition Inc. Common Shares, no par value (ACOG).
- Disclosed ownership: 4.9%.
- Date of event: 31 Dec 2025.
Ikarian Capital, LLC - 31 Dec 2025 SCHEDULE 13G/A Report for Alpha Cognition Inc. Common Shares, no par value (ACOG)
- Filing Manager
- Ikarian Capital, LLC
- Reporting Manager
- Ikarian Capital, LLC
- Symbol
- ACOG
- Shares outstanding
- 21,556,306 shares
- Disclosed Ownership
- 1,056,259 shares
- Ownership
- 4.9%
- Form type
- SCHEDULE 13G/A
- Filing time
- 17 Feb 2026, 17:16:49 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 14 Feb 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Ikarian Capital, LLC disclosed 4.9% ownership in Alpha Cognition Inc. Common Shares, no par value (ACOG) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 14 Feb 2025.
- Current filing was accepted on 17 Feb 2026, 17:16.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Ikarian Capital, LLC | 4.9% | 1,056,259 | 0 | 1,056,259 | /s/ Neil Shahrestani | Neil Shahrestani, Sole Manager | |
| Neil Shahrestani | 4.9% | 1,056,259 | 0 | 1,056,259 | /s/ Neil Shahrestani | Neil Shahrestani |