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Magnolia Oil & Gas Corp

MGY
Exchange
NYSE
Industry
Crude Petroleum & Natural Gas
SEC CIK
0001698990

In the last 90 days, Magnolia Oil & Gas Corp insiders filed 3 open-market purchases and 0 sales; 411 institutions reported holding it in 13F filings for Q2 2026, worth $5.28B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Magnolia Oil & Gas Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
373
−9 vs. Q2 2025
Shares held
206.2M
−9.61M (−4.5%) vs. Q2 2025
Total value
$4.92B
+$68.7M (+1.4%) vs. Q2 2025
New holders
36
132 more added
Sold out
45
151 more reduced

3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MGY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 373 institutions
Q1 2021: 190 institutionsQ2 2021: 206 institutionsQ3 2021: 240 institutionsQ4 2021: 234 institutionsQ1 2022: 251 institutionsQ2 2022: 283 institutionsQ3 2022: 280 institutionsQ4 2022: 295 institutionsQ1 2023: 276 institutionsQ2 2023: 281 institutionsQ3 2023: 288 institutionsQ4 2023: 297 institutionsQ1 2024: 323 institutionsQ2 2024: 347 institutionsQ3 2024: 367 institutionsQ4 2024: 383 institutionsQ1 2025: 407 institutionsQ2 2025: 385 institutionsQ3 2025: 373 institutionsQ4 2025: 379 institutionsQ1 2026: 406 institutionsQ2 2026: 411 institutions
Value heldQ3 2025: $4.92B
Q1 2021: $2.07BQ2 2021: $2.83BQ3 2021: $3.23BQ4 2021: $3.55BQ1 2022: $4.47BQ2 2022: $4.14BQ3 2022: $3.83BQ4 2022: $4.56BQ1 2023: $4.37BQ2 2023: $4.14BQ3 2023: $4.41BQ4 2023: $4.19BQ1 2024: $5.78BQ2 2024: $5.60BQ3 2024: $5.44BQ4 2024: $5.15BQ1 2025: $5.51BQ2 2025: $4.85BQ3 2025: $4.92BQ4 2025: $4.37BQ1 2026: $6.39BQ2 2026: $5.28B
Institutions holding MGY and their total value by quarter
QuarterHoldersValue
Q2 2026411$5.28B
Q1 2026406$6.39B
Q4 2025379$4.37B
Q3 2025373$4.92B
Q2 2025385$4.85B
Q1 2025407$5.51B
Q4 2024383$5.15B
Q3 2024367$5.44B
Q2 2024347$5.60B
Q1 2024323$5.78B
Q4 2023297$4.19B
Q3 2023288$4.41B
Q2 2023281$4.14B
Q1 2023276$4.37B
Q4 2022295$4.56B
Q3 2022280$3.83B
Q2 2022283$4.14B
Q1 2022251$4.47B
Q4 2021234$3.55B
Q3 2021240$3.23B
Q2 2021206$2.83B
Q1 2021190$2.07B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Magnolia Oil & Gas Corp; share changes are against Q2 2025.

Institutions holding MGY in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Parallel Advisors, LLC984$23.5K0.00%−49−4.7%Reduced
Ronald Blue Trust, Inc.978$23.3K0.00%−1,597−62.0%Reduced
Financial Management Professionals, Inc.972$23.2K0.00%−302−23.7%Reduced
Nomura Asset Management Co Ltd950$22.7K0.00%00.0%Unchanged
Versant Capital Management, Inc902$21.5K0.00%00.0%Unchanged
Principal Securities, Inc.859$20.5K0.00%+16+1.9%Added
Fifth Third Bancorp843$20.1K0.00%+149+21.5%Added
Bayforest Capital Ltd828$19.8K0.01%+611+281.6%Added
Parkside Financial Bank & Trust796$19.0K0.00%+683+604.4%Added
Y.D. More Investments Ltd750$17.9K0.00%00.0%Unchanged
First Horizon Corp727$17.4K0.00%+727New
Optiver Holding B.V.705$16.8K0.00%+207+41.6%Added
Salomon & Ludwin, LLC584$15.1K0.00%+584New
Umb Bank N A577$13.8K0.00%+202+53.9%Added
Center for Financial Planning, Inc.566$13.5K0.00%00.0%Unchanged
Key Financial Inc560$13.4K0.00%00.0%Unchanged
TD Private Client Wealth LLC531$12.7K0.00%−24−4.3%Reduced
Root Financial Partners, LLC479$11.4K0.00%+479New
Accent Capital Management, LLC393$9.38K0.00%00.0%Unchanged
Massmutual Trust Co FSB384$9.17K0.00%00.0%Unchanged
Trust Co of Vermont382$9.12K0.00%00.0%Unchanged
Bogart Wealth, LLC378$9.02K0.00%00.0%Unchanged
Wall Street Access Asset Management, LLC373$8.90K0.00%+373New
Northwestern Mutual Wealth Management Co357$8.52K0.00%+42+13.3%Added
Bryn Mawr Trust Co350$8.36K0.00%00.0%Unchanged
Private Wealth Management Group, LLC341$8.14K0.00%00.0%Unchanged
Park Place Capital Corp339$8.09K0.00%00.0%Unchanged
Wealthspire Advisors, LLC328$7.83K0.00%+328New
Truvestments Capital LLC327$7.80K0.00%−259−44.2%Reduced
Clearstead Advisors, LLC302$7.21K0.00%00.0%Unchanged
Jones Financial Companies LLLP287$7.09K0.00%+148+106.5%Added
GWM Advisors LLC284$6.78K0.00%+1+0.4%Added
Bare Financial Services, Inc277$6.61K0.00%−66−19.2%Reduced
Binnacle Investments Inc269$6.42K0.00%+243+934.6%Added
Halbert Hargrove Global Advisors, LLC261$6.23K0.00%+261New
Whittier Trust Co of Nevada Inc261$6.17K0.00%−166−38.9%Reduced
LRI Investments, LLC250$5.97K0.00%00.0%Unchanged
Essential Partners LLC215$5.13K0.00%+24+12.6%Added
Hemington Wealth Management242$5.00K0.00%+29+13.6%Added
Rothschild Investment LLC205$4.89K0.00%−60−22.6%Reduced
Rosenberg Matthew Hamilton192$4.58K0.00%00.0%Unchanged
MAI Capital Management184$4.39K0.00%−90−32.8%Reduced
Clayton Financial Group LLC178$4.25K0.00%+178New
Quarry LP143$3.41K0.00%−1,978−93.3%Reduced
Farmers & Merchants Investments Inc100$2.39K0.00%00.0%Unchanged
Bell Investment Advisors, Inc80$1.91K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC80$1.91K0.00%00.0%Unchanged
Johnson Financial Group, Inc.75$1.79K0.00%+75New
Westfuller Advisors, LLC71$1.70K0.00%+71New
Steward Partners Investment Advisory, LLC71$1.70K0.00%+27+61.4%Added
SBI Securities Co., Ltd.68$1.62K0.00%+1+1.5%Added
Fortitude Family Office, LLC65$1.55K0.00%+12+22.6%Added
Larson Financial Group LLC63$1.50K0.00%+9+16.7%Added
Central Trust Co53$1.27K0.00%−54−50.5%Reduced
JFS Wealth Advisors, LLC52$1.24K0.00%−16−23.5%Reduced
UMA Financial Services, Inc.52$1.24K0.00%00.0%Unchanged
Legacy Wealth Managment, LLC47$1.12K0.00%+18+62.1%Added
Picton Mahoney Asset Management48$1.00K0.00%00.0%Unchanged
Cornerstone Planning Group LLC45$9990.00%+1+2.3%Added
Glen Eagle Advisors, LLC41$9880.00%00.0%Unchanged
WPG Advisers, LLC31$7400.00%00.0%Unchanged
SJS Investment Consulting Inc.24$5730.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.23$5730.00%+2+9.5%Added
Atlantic Trust, LLC20$4780.00%00.0%Unchanged
Frazier Financial Advisors, LLC19$4570.00%+19New
Prestige Wealth Management Group LLC18$4300.00%00.0%Unchanged
Rialto Wealth Management, LLC17$4060.00%+9+112.5%Added
HFM Investment Advisors, LLC15$3580.00%00.0%Unchanged
True Wealth Design, LLC13$3110.00%+9+225.0%Added
Advisory Services Network, LLC13$3100.00%+13New
Bay Harbor Wealth Management, LLC11$2620.00%+4+57.1%Added
Abound Wealth Management7$1680.00%00.0%Unchanged
Cloud Capital Management, LLC33$00.00%+33New
Hallmark Capital Management Inc0$00.00%−715,217−100.0%Sold out
TimesSquare Capital Management, LLC0$00.00%−691,959−100.0%Sold out
Ranger Investment Management, L.P.0$00.00%−560,990−100.0%Sold out
Squarepoint Ops LLC0$00.00%−349,188−100.0%Sold out
Wasatch Advisors Inc0$00.00%−238,309−100.0%Sold out
Capitolis Liquid Global Markets LLC0$00.00%−216,100−100.0%Sold out
Algert Global LLC0$00.00%−173,334−100.0%Sold out
Nebula Research & Development LLC0$00.00%−171,271−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−78,359−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−71,508−100.0%Sold out
Marshall Wace, LLP0$00.00%−63,419−100.0%Sold out
Exchange Traded Concepts, LLC0$00.00%−47,988−100.0%Sold out
Sciencast Management LP0$00.00%−44,333−100.0%Sold out
Centiva Capital, LP0$00.00%−37,792−100.0%Sold out
MQS Management LLC0$00.00%−35,507−100.0%Sold out
Perbak Capital Partners LLP0$00.00%−34,872−100.0%Sold out
Vident Advisory, LLC0$00.00%−28,932−100.0%Sold out
Systematic Alpha Investments, LLC0$00.00%−25,400−100.0%Sold out
ISAM Funds (UK) Ltd0$00.00%−18,595−100.0%Sold out
Readystate Asset Management LP0$00.00%−18,071−100.0%Sold out
Lombard Odier Asset Management (USA) Corp0$00.00%−17,749−100.0%Sold out
HighTower Advisors, LLC0$00.00%−15,027−100.0%Sold out
111 Capital0$00.00%−14,066−100.0%Sold out
Buckingham Strategic Partners0$00.00%−13,156−100.0%Sold out
Aigen Investment Management, LP0$00.00%−12,119−100.0%Sold out
Caxton Associates LLP0$00.00%−11,863−100.0%Sold out
Elo Mutual Pension Insurance Co0$00.00%−10,785−100.0%Sold out