Upgrade to SI Premium - Free Trial

Form SCHEDULE 13G/A Alpha Cognition Inc. Filed by: MANCHESTER MANAGEMENT CO LLC

May 12, 2026 7:11 PM





Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)




schemaVersion:


SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G



Manchester Management Company, LLC
Signature:/s/ James E. Besser
Name/Title:James E. Besser, Managing Member
Date:05/12/2026
Manchester Management PR, LLC
Signature:/s/ James E. Besser
Name/Title:James E. Besser, Managing Member
Date:05/12/2026
James E. Besser
Signature:/s/ James E. Besser
Name/Title:James E. Besser
Date:05/12/2026
Morgan C. Frank
Signature:/s/ Morgan C. Frank
Name/Title:Morgan C. Frank
Date:05/12/2026
Exhibit Information

Exhibit A - Joint Filing Agreement

ATTACHMENTS / EXHIBITS

d12159984_ex99-a.htm

Categories

SEC Filings