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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
Brevan Howard Capital Management LP40,833$974.7K0.01%−31,978−43.9%Reduced
Vestcor Inc41,276$985.0K0.03%+5,895+16.7%Added
Susquehanna Portfolio Strategies, LLC41,372$987.5K0.02%+2,972+7.7%Added
Oregon Public Employees Retirement Fund41,741$996.4K0.01%−800−1.9%Reduced
Bosman Wealth Management, LLC42,999$1.03M0.80%−10,215−19.2%Reduced
Hunter Perkins Capital Management, LLC43,010$1.03M0.23%00.0%Unchanged
Ensign Peak Advisors, Inc43,559$1.04M0.00%−8,400−16.2%Reduced
BNP Paribas Arbitrage, SA43,763$1.04M0.00%+14,331+48.7%Added
Susquehanna International Group, LLP43,881$1.05M0.00%−336,397−88.5%Reduced
O'Shaughnessy Asset Management, LLC44,718$1.07M0.01%+9,088+25.5%Added
Gabelli Funds LLC44,979$1.07M0.01%00.0%Unchanged
Argent Capital Management LLC45,470$1.09M0.03%−9,306−17.0%Reduced
The PNC Financial Services Group, Inc.46,115$1.10M0.00%−1,262−2.7%Reduced
Ashton Thomas Private Wealth, LLC47,156$1.13M0.03%−145−0.3%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys47,188$1.13M0.01%−809−1.7%Reduced
Oak Family Advisors, LLC47,210$1.13M0.37%−31,499−40.0%Reduced
KLP Kapitalforvaltning AS47,400$1.13M0.00%00.0%Unchanged
CBOE Vest Financial, LLC47,930$1.14M0.01%−32,085−40.1%Reduced
GF Fund Management Co. Ltd.50,711$1.21M0.02%−5,164−9.2%Reduced
Gsa Capital Partners LLP51,488$1.23M0.10%+26,547+106.4%Added
Police & Firemen's Retirement System of New Jersey51,565$1.23M0.01%+9,533+22.7%Added
Arizona State Retirement System52,554$1.25M0.01%+286+0.5%Added
Teachers Retirement System of the State of Kentucky53,273$1.27M0.01%−3,629−6.4%Reduced
Amalgamated Bank53,307$1.27M0.01%+552+1.0%Added
Hilton Capital Management, LLC55,747$1.33M0.11%+2,879+5.4%Added
State of Tennessee, Treasury Department58,035$1.39M0.00%+12,198+26.6%Added
Captrust Financial Advisors58,425$1.39M0.00%−520−0.9%Reduced
Yousif Capital Management, LLC58,456$1.40M0.01%−12,130−17.2%Reduced
Teacher Retirement System of Texas60,219$1.44M0.01%+8,825+17.2%Added
Albert D Mason Inc61,730$1.47M0.96%+3,991+6.9%Added
D. E. Shaw & Co., Inc.61,877$1.48M0.00%−47,802−43.6%Reduced
Wealth Enhancement Advisory Services, LLC62,882$1.50M0.00%+2,527+4.2%Added
Intech Investment Management LLC63,936$1.53M0.01%−16,085−20.1%Reduced
Federation des caisses Desjardins du Quebec64,345$1.54M0.01%00.0%Unchanged
New York State Teachers Retirement System66,388$1.58M0.00%−20,109−23.2%Reduced
Mitsubishi UFJ Asset Management (UK) Ltd.68,000$1.62M0.78%00.0%Unchanged
Aquatic Capital Management LLC68,307$1.63M0.03%−33,143−32.7%Reduced
Empowered Funds, LLC69,161$1.65M0.02%−4,450−6.0%Reduced
Wedge Capital Management L L P70,191$1.68M0.03%−5,778−7.6%Reduced
Castleark Management LLC74,790$1.79M0.05%00.0%Unchanged
Comerica Bank79,707$1.90M0.01%−12,624−13.7%Reduced
Wesbanco Bank Inc82,138$1.96M0.05%+23,000+38.9%Added
Federated Hermes, Inc.82,711$1.97M0.00%+1,203+1.5%Added
Louisiana State Employees Retirement System85,200$2.03M0.03%−2,100−2.4%Reduced
Mirae Asset Global ETFs Holdings Ltd.86,603$2.07M0.00%−15,570−15.2%Reduced
State of New Jersey Common Pension Fund D91,056$2.17M0.01%+4,301+5.0%Added
State of Alaska, Department of Revenue93,196$2.22M0.02%−18,033−16.2%Reduced
Mitsubishi UFJ Trust & Banking Corp96,653$2.31M0.01%+21,725+29.0%Added
CoreCommodity Management, LLC98,314$2.35M0.43%−13,103−11.8%Reduced
Oliver Luxxe Assets LLC98,487$2.35M0.37%+2,771+2.9%Added
Campbell Newman Asset Management Inc98,832$2.36M0.17%+412+0.4%Added
Anchor Capital Advisors LLC99,248$2.37M0.07%+3,448+3.6%Added
Sterling Capital Management LLC100,739$2.40M0.04%+27,801+38.1%Added
Truist Financial Corp102,921$2.46M0.00%−1,268−1.2%Reduced
Russell Investments Group, Ltd.105,666$2.52M0.00%−121,978−53.6%Reduced
Jefferies Financial Group Inc.107,158$2.56M0.02%−24,447−18.6%Reduced
Segall Bryant & Hamill, LLC108,523$2.59M0.03%−659−0.6%Reduced
MetLife Investment Management108,797$2.60M0.01%−2,221−2.0%Reduced
HRT Financial LP109,780$2.62M0.01%−12,413−10.2%Reduced
SG Americas Securities, LLC111,518$2.66M0.01%+88,841+391.8%Added
Quantbot Technologies LP115,254$2.75M0.07%−8,428−6.8%Reduced
Brinker Capital Investments, LLC117,237$2.80M0.02%−1,799−1.5%Reduced
Edgestream Partners, L.P.118,739$2.83M0.08%+118,739New
Cerity Partners LLC121,352$2.90M0.00%+6,601+5.8%Added
Toroso Investments, LLC122,321$2.92M0.01%+21,205+21.0%Added
Natixis Advisors, L.P.123,033$2.94M0.00%+11,665+10.5%Added
Citadel Advisors LLC123,995$2.96M0.00%+123,995New
Diamond Hill Capital Management Inc133,583$3.19M0.02%+13,203+11.0%Added
Thrivent Financial for Lutherans133,675$3.19M0.01%−136,298−50.5%Reduced
Kingsview Wealth Management, LLC135,739$3.24M0.05%+135,739New
Trexquant Investment LP136,298$3.25M0.03%−132,783−49.3%Reduced
Great Lakes Advisors, LLC143,020$3.41M0.03%−15,931−10.0%Reduced
Pathstone Holdings, LLC148,619$3.55M0.01%+10,473+7.6%Added
State Board of Administration of Florida Retirement System149,150$3.56M0.01%+45,830+44.4%Added
Franklin Resources Inc151,332$3.61M0.00%+42,293+38.8%Added
STRS Ohio152,100$3.63M0.01%+7,800+5.4%Added
Great West Life Assurance Co156,211$3.78M0.01%−147−0.1%Reduced
Gotham Asset Management, LLC161,273$3.85M0.02%+40,060+33.0%Added
Lazard Asset Management LLC163,392$3.90M0.01%−3,679−2.2%Reduced
Verition Fund Management LLC163,485$3.90M0.02%+27,167+19.9%Added
Nicholas Investment Partners, LP165,899$3.96M0.30%+9,690+6.2%Added
California State Teachers Retirement System170,350$4.07M0.00%+4,717+2.8%Added
Fred Alger Management, LLC172,261$4.11M0.02%00.0%Unchanged
Bridgeway Capital Management, LLC174,650$4.17M0.09%+47,800+37.7%Added
Rafferty Asset Management, LLC179,677$4.29M0.01%−44,852−20.0%Reduced
Creative Planning186,742$4.46M0.00%+110,496+144.9%Added
Royal Bank of Canada187,335$4.47M0.00%−119,031−38.9%Reduced
SEI Investments Co190,750$4.55M0.00%+11,838+6.6%Added
HITE Hedge Asset Management LLC190,981$4.56M0.25%+190,981New
Citigroup Inc196,804$4.70M0.00%−153,243−43.8%Reduced
Deutsche Bank AG200,382$4.78M0.00%+17,856+9.8%Added
Price T Rowe Associates Inc200,939$4.80M0.00%−241,842−54.6%Reduced
Moody Aldrich Partners LLC204,279$4.88M0.92%−41,554−16.9%Reduced
F/M Investments LLC211,104$5.04M0.19%−3,902−1.8%Reduced
Prudential Financial Inc216,062$5.16M0.01%+21,385+11.0%Added
UBS Asset Management Americas Inc226,283$5.40M0.00%−466,341−67.3%Reduced
Illinois Municipal Retirement Fund236,168$5.64M0.07%+67,644+40.1%Added
Dark Forest Capital Management LP239,863$5.73M0.22%−256,944−51.7%Reduced
King Luther Capital Management Corp252,915$6.04M0.02%−434−0.2%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH258,554$6.17M0.01%+4,082+1.6%Added