DOSSIER · 13F Holders · Q1 2026
MRO*
MARATHON OIL CORP
2 institutions still hold MARATHON OIL CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 565849106·2 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
2 institutions reported MRO* in Q1 2026. Kentucky Retirement Systems leads at 100.0% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.