Magnolia Oil & Gas Corp - COMMON STOCK (MGY) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2018 to Q4 2025

Type / Class
Equity / COMMON STOCK
Symbol
MGY on NYSE
Shares outstanding
184,576,596
Price per share
$25.53
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
199,405,787
Total reported value
$4,367,246,052
% of total 13F portfolios
0%
Share change
-9,601,456
Value change
-$227,992,771
Number of holders
375
Price from insider filings
$25.53
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Magnolia Oil & Gas Corp - COMMON STOCK (MGY) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 14% $589,581,498 27,207,268 BlackRock, Inc. 31 Mar 2025
STATE STREET CORP 4.7% $207,074,637 8,675,100 STATE STREET CORPORATION 30 Sep 2025
FIRST TRUST PORTFOLIOS LP 1.8% -82% $73,923,001 -$335,308,470 3,411,306 -82% First Trust Portfolios L.P. 31 Mar 2025

As of 31 Dec 2025, 375 institutional investors reported holding 199,405,787 shares of Magnolia Oil & Gas Corp - COMMON STOCK (MGY). This represents 108% of the company’s total 184,576,596 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Magnolia Oil & Gas Corp - COMMON STOCK (MGY) together control 81% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 15% 27,671,647 +0.83% 0.01% $605,732,341
VANGUARD GROUP INC 11% 19,644,960 -1.2% 0.01% $430,028,174
AMERICAN CENTURY COMPANIES INC 6% 11,029,847 -7.2% 0.12% $241,443,413
STATE STREET CORP 4.8% 8,800,807 +1.4% 0.01% $192,649,665
DIMENSIONAL FUND ADVISORS LP 3.6% 6,634,362 +4.2% 0.03% $145,229,795
JANUS HENDERSON GROUP PLC 3.3% 6,109,462 -3.9% 0.06% $133,735,730
TD Asset Management Inc 3.1% 5,671,819 +27% 0.1% $124,156,118
Epoch Investment Partners, Inc. 2.9% 5,330,064 +29% 0.66% $116,675,102
WELLINGTON MANAGEMENT GROUP LLP 2.8% 5,206,612 -0.36% 0.02% $113,972,737
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 2.7% 4,959,218 0% 0.16% $108,557,000
ALLIANCEBERNSTEIN L.P. 2.6% 4,747,597 +1.9% 0.03% $103,924,898
GEODE CAPITAL MANAGEMENT, LLC 2.4% 4,435,901 -1.9% 0.01% $97,124,152
Boston Trust Walden Corp 2.3% 4,168,085 +5.7% 0.69% $91,239,381
T. Rowe Price Investment Management, Inc. 2.2% 3,989,190 -28% 0.06% $87,324,000
VICTORY CAPITAL MANAGEMENT INC 1.9% 3,591,921 -9.3% 0.04% $78,627,151
SILVERCREST ASSET MANAGEMENT GROUP LLC 1.8% 3,333,105 -7.2% 0.5% $72,961,707
BANK OF AMERICA CORP /DE/ 1.7% 3,218,349 -0.67% 0.01% $70,449,648
GW&K Investment Management, LLC 1.7% 3,169,496 +15% 0.6% $69,381,000
SYSTEMATIC FINANCIAL MANAGEMENT LP 1.6% 2,938,904 -1.1% 1.5% $64,332,620
Allspring Global Investments Holdings, LLC 1.6% 2,930,693 -4.8% 0.11% $65,881,979
MORGAN STANLEY 1.5% 2,796,949 +0.66% 0% $61,225,261
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.4% 2,492,892 +2.4% 0.01% $54,569,406
LOOMIS SAYLES & CO L P 1.3% 2,317,768 -7.5% 0.06% $50,735,942
GOLDMAN SACHS GROUP INC 1.2% 2,225,450 -29% 0.01% $48,715,105
Stephens Investment Management Group LLC 1.2% 2,154,579 -0.12% 0.61% $47,163,734

Institutional Holders of Magnolia Oil & Gas Corp - COMMON STOCK (MGY) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 199,405,787 $4,367,246,052 -$227,992,771 $21.89 375
2025 Q3 206,135,836 $4,920,930,206 -$224,803,628 $23.87 370
2025 Q2 215,861,849 $4,854,938,422 -$54,932,193 $22.48 383
2025 Q1 218,110,272 $5,507,771,915 -$46,450,645 $25.26 405
2024 Q4 220,096,327 $5,148,510,013 -$75,415,520 $23.38 381
2024 Q3 222,505,962 $5,435,336,507 +$37,225,141 $24.42 365
2024 Q2 220,880,533 $5,597,593,861 -$28,819,580 $25.34 344
2024 Q1 222,730,960 $5,778,914,554 +$698,644,961 $25.95 322
2023 Q4 196,802,406 $4,191,458,298 +$90,269,529 $21.29 294
2023 Q3 192,221,395 $4,405,495,370 -$137,915,292 $22.91 287
2023 Q2 198,150,169 $4,141,407,611 -$32,609,394 $20.90 278
2023 Q1 199,712,268 $4,369,557,710 +$118,575,344 $21.88 272
2022 Q4 194,730,823 $4,566,050,509 +$54,079,784 $23.45 291
2022 Q3 193,273,415 $3,828,674,932 -$398,040,849 $19.81 273
2022 Q2 197,339,370 $4,143,564,800 +$199,308,095 $20.99 273
2022 Q1 189,020,463 $4,472,219,389 +$35,077,659 $23.65 243
2021 Q4 187,930,864 $3,546,224,428 +$32,547,837 $18.87 227
2021 Q3 181,395,785 $3,227,396,703 +$18,816,498 $17.79 235
2021 Q2 180,478,579 $2,819,994,590 +$30,552,184 $15.63 203
2021 Q1 180,082,550 $2,067,269,372 +$77,051,237 $11.48 187
2020 Q4 177,129,033 $1,250,600,458 +$12,882,730 $7.06 169
2020 Q3 175,169,573 $905,937,397 +$4,387,772 $5.17 170
2020 Q2 173,885,044 $1,054,009,520 -$1,632,850 $6.06 170
2020 Q1 180,365,757 $721,453,712 -$24,684,280 $4.00 153
2019 Q4 182,638,011 $2,297,583,095 +$64,962,678 $12.58 154
2019 Q3 177,794,847 $1,973,557,134 +$44,211,846 $11.10 136
2019 Q2 173,292,471 $2,006,706,101 +$160,537,025 $11.58 129
2019 Q1 159,291,474 $1,911,501,580 +$84,960,151 $12.00 122
2018 Q4 152,461,934 $1,709,091,637 -$30,356,547 $11.21 106
2018 Q3 117,872,374 $1,767,383,405 +$1,739,067,358 $15.01 97
2018 Q2 2,353,400 $25,582,000 +$25,582,000 $10.87 3