MGY · NYSE · Oil & Gas Exploration & Production

Magnolia Oil & Gas

Produces oil, natural gas and NGLs from South Texas shale properties.

$26.25
After-hours close+0.00 (+0.02%)
At close$26.25(−1.52%)

Breakdown13F · Form 4

Institutions 90.03%213.35M sharesInsiders 0.91%2.15M sharesOther 9.06%21.47M shares

Shares outstanding 236.97M · Float 234.75M · 99.1% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.31.97M13.49%13FAug 7, 2026
Vanguard Portfolio Management LLC15.34M6.47%13FAug 13, 2026
American Century Companies Inc11.01M4.65%13FAug 12, 2026
State Street Corp9.94M4.20%13FAug 7, 2026
Vanguard Capital Management LLC7.66M3.23%13FAug 13, 2026

Institutions13F, as of Jun 30, 2026

413 holders · 213.35M shares · 56 new positions · 219 increased · 142 reduced · 54 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.31.97M13.49%+2.48MAug 7, 2026
Vanguard Portfolio Management LLC15.34M6.47%+2.36MAug 13, 2026
American Century Companies Inc11.01M4.65%+502.2KAug 12, 2026
State Street Corp9.94M4.20%+445.2KAug 7, 2026
Vanguard Capital Management LLC7.66M3.23%+474.8KAug 13, 2026
Dimensional Fund Advisors LP7.12M3.00%+88.7KAug 11, 2026
Jupiter Topco LLC6.43M2.71%+6.43MnewAug 14, 2026
Arrowstreet Capital, Limited Partnership5.46M2.31%−800.3KAug 13, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.15.50%29.15MNov 8, 2024
Vanguard Portfolio Management7.04%13.07M13GApr 29, 2026
State Street Corporation5.70%10.70MOct 16, 2024

InsidersForm 4

InsiderRoleShares% outstandingFiled
Christopher G. Stavrosdirector, officer: CEO & CHAIRMAN883.6K0.37%Mar 11, 2026
Timothy D. Yangofficer: EVP, CHIEF LEGAL & COMM & SEC526.7K0.22%Mar 11, 2026
Brian Coralesofficer: SVP & CHIEF FINANCIAL OFFICER184.2K0.08%Mar 11, 2026
Arcilia Acostadirector134.6K0.06%May 12, 2026
Dan F. Smithdirector127.2K0.05%May 12, 2026
Edward P. Djerejiandirector116.7K0.05%May 12, 2026
James R. Larsondirector97.3K0.04%May 12, 2026
David M. Khanidirector30.6K0.01%Aug 11, 2026
Ralph Lewis Roppdirector26.0K0.01%Aug 11, 2026
Shandell Szabodirector20.6K0.01%May 12, 2026

3 ten-percent owners hold 4.76M shares by Form 4, outside the officers-and-directors figure above · 9 people have not refiled in the last 18 months (66.94M shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 7, 2026
David M. Khanidirector
Purchase8,000$25.0030,622
Aug 7, 2026
Ralph Lewis Roppdirector
Purchase5,000$24.6326,007
Mar 30, 2026
Shandell Szabodirector
Sale11,731$31.9814,304
Mar 9, 2026
Christopher G. Stavrosdirector, officer: CEO & CHAIRMAN
Sale119,954$29.29883,592
Mar 9, 2026
Timothy D. Yangofficer: EVP, CHIEF LEGAL & COMM & SEC
Sale150,000$29.29526,661
Mar 9, 2026
Brian Coralesofficer: SVP & CHIEF FINANCIAL OFFICER
Sale33,000$29.12184,178
Mar 10, 2026
Edward P. Djerejiandirector
Sale18,000$28.98110,425
Mar 9, 2026
Arcilia Acostadirector
Sale19,235$29.10128,249
Nov 11, 2025
Ralph Lewis Roppdirector
Purchase4,500$23.1014,687

CongressHouse and Senate disclosures

Not reported.