Who Owns MAGNOLIA OIL & GAS CORP (MGY.WS)? -- Institutional Holders (2026-03-31)

2 institutions reported holding $236,775 of MAGNOLIA OIL & GAS CORP (MGY.WS) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($176,792), GROUP ONE TRADING LLC ($59,983). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1SIMPLEX TRADING, LLC$176,7925,600Added
2GROUP ONE TRADING LLC$59,9831,900Trimmed

Source: SEC Form 13F filings · as of 2026-03-31