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Alpha Cognition Inc. — DEFA14A Filings

2 DEFA14A filings on record

This page lists all DEFA14A filings submitted to the SEC by Alpha Cognition Inc. (ACOG), sorted by most recent first. Each row links to the full filing on EdgarLookup. Alpha Cognition Inc. has filed 2 DEFA14A documents with the SEC since 2015. To view all SEC filings by Alpha Cognition Inc., see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-Q 3 3/A 4 424B2 424B3 424B4 424B5 8-A12B 8-K 8-K/A CERT CORRESP D DEF 14A DEFA14A DRS DRS/A DRSLTR EFFECT POS AM POS EX S-1 S-1/A S-1MEF S-3 S-8 S-8 POS SC 13D SC 13D/A SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
DEFA14A DEFINITIVE ADDITIONAL MATERIALS 0001213900-25-039816 May 6, 2025 —
DEFA14A DEFINITIVE ADDITIONAL MATERIALS 0001213900-25-039815 May 6, 2025 —