DOSSIER · 13F Holders · Q3 2026
MERCK & CO INC
9 institutions still hold MERCK & CO INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 58933Y955·9 13F holders·last filed Sep 30, 2026
AI Holders Summary · Q3 2026
9 institutions reported MERCK & CO INC in Q3 2026. IMC-Chicago, LLC leads at 44.3% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.