SEC Form 3 · accession 0001104659-26-108274
Magnolia Oil & Gas Corp · MGY
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
KAYNE ANDERSON CAPITAL ADVISORS LP
10% Owner
Warburg Pincus & Co US, LLC
10% Owner
WildFire Energy I LLC
10% Owner
Hawkwood HoldCo GP, LLC
10% Owner
Hawkwood HoldCo, L.P.
10% Owner
Period of report
Sep 10, 2026
Accepted (ET)
Sep 16, 2026 · 4:30 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001698990
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF1,F2,F3 | holding | — | — | — | 32,203,000 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The reported securities are directly held by WildFire Energy I LLC (the "Shareholder"). Hawkwood HoldCo, L.P., Kayne Private Energy Income Fund II, L.P., Kayne Private Energy Income Fund II-B, L.P., Kayne Anderson Energy Fund VIII, L.P. and certain management individuals hold 100% of the equity interests in the Shareholder. The Warburg Entities and the Kayne Entities (each as defined below) jointly control the Shareholder.
- F2Warburg Pincus & Company US, LLC ("Warburg Pincus") is the general partner of Warburg Pincus Partners II (US), L.P., which is the managing member of Warburg Pincus Partners (E&P) XI LLC, which is the sole member of Warburg Pincus (E&P) XI LLC, which is the general partner of Warburg Pincus (E&P) XI, L.P., which is the general partner of Warburg Pincus Private Equity (E&P) XI - A, L.P., which is the managing member of Hawkwood HoldCo GP, LLC, which is the general partner of Hawkwood HoldCo, L.P., which holds the securities on behalf of various funds and accounts indirectly managed by Warburg Pincus (the entities in this footnote 2, the "Warburg Entities"). Each of the Warburg Entities disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Warburg Entities are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.
- F3Kayne Private Energy Income Fund II, L.P., Kayne Private Energy Income Fund II-B, L.P. and Kayne Anderson Energy Fund VIII, L.P. are managed, with discretion to purchase or sell securities, by Kayne Anderson Capital Advisors, L.P. (or controlled affiliates thereof) (collectively, the "Kayne Entities"), as a registered investment adviser. Each of the Kayne Entities disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Kayne Entities are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.
Remarks
Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.