Reporting Manager
MANCHESTER MANAGEMENT COMPANY, LLC
Symbol
ACOG
Shares outstanding
22,101,588 shares
Disclosed Ownership
1,127,181 shares
Ownership
5.1%
Form type
SCHEDULE 13G
Filing time
17 Feb 2026, 11:17:54 UTC
Date of event
30 Dec 2025

Quoteable Key Fact

"MANCHESTER MANAGEMENT CO LLC disclosed 5.1% ownership in Alpha Cognition Inc. Common Shares, no par value (ACOG) on 30 Dec 2025."

Quick Takeaways

  • MANCHESTER MANAGEMENT CO LLC filed SCHEDULE 13G for Alpha Cognition Inc. Common Shares, no par value (ACOG).
  • Disclosed ownership: 5.1%.
  • Date of event: 30 Dec 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 17 Feb 2026, 11:17.

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.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
MANCHESTER MANAGEMENT COMPANY, LLC 5.1% 1,127,181 0 1,127,181 By: /s/ James E. Besser James E. Besser, Managing Member
MANCHESTER MANAGEMENT PR, LLC 5.1% 1,127,181 0 1,127,181 By: /s/ James E. Besser James E. Besser, Managing Member