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, Q4 2025
Institutional positions in Magnolia Oil & Gas Corp as of Dec 31, 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
- 379
- +13 vs. Q3 2025
- Shares held
- 199.5M
- −4.55M (−2.2%) vs. Q3 2025
- Total value
- $4.37B
- −$501.6M (−10.3%) vs. Q3 2025
- New holders
- 61
- 124 more added
- Sold out
- 48
- 152 more reduced
7 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 411 | $5.28B |
| Q1 2026 | 406 | $6.39B |
| Q4 2025 | 379 | $4.37B |
| Q3 2025 | 373 | $4.92B |
| Q2 2025 | 385 | $4.85B |
| Q1 2025 | 407 | $5.51B |
| Q4 2024 | 383 | $5.15B |
| Q3 2024 | 367 | $5.44B |
| Q2 2024 | 347 | $5.60B |
| Q1 2024 | 323 | $5.78B |
| Q4 2023 | 297 | $4.19B |
| Q3 2023 | 288 | $4.41B |
| Q2 2023 | 281 | $4.14B |
| Q1 2023 | 276 | $4.37B |
| Q4 2022 | 295 | $4.56B |
| Q3 2022 | 280 | $3.83B |
| Q2 2022 | 283 | $4.14B |
| Q1 2022 | 251 | $4.47B |
| Q4 2021 | 234 | $3.55B |
| Q3 2021 | 240 | $3.23B |
| Q2 2021 | 206 | $2.83B |
| Q1 2021 | 190 | $2.07B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Magnolia Oil & Gas Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −10,576−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −9,991−100.0% | Sold out |
| Vista Finance, LLC | 0 | $0 | 0.00% | −9,578−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −9,527−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −9,461−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −9,446−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −9,283−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −9,146−100.0% | Sold out |
| Evergreen Capital Management LLC | 0 | $0 | 0.00% | −8,655−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −8,597−100.0% | Sold out |
| Retirement Guys Formula LLC | 0 | $0 | 0.00% | −8,508−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −4,472−100.0% | Sold out |
| Ci Investments Inc. | 0 | $0 | 0.00% | −2,412−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −1,280−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −859−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −328−100.0% | Sold out |
| Halbert Hargrove Global Advisors, LLC | 0 | $0 | 0.00% | −261−100.0% | Sold out |
| Rosenberg Matthew Hamilton | 0 | $0 | 0.00% | −192−100.0% | Sold out |
| Clayton Financial Group LLC | 0 | $0 | 0.00% | −178−100.0% | Sold out |
| Bell Investment Advisors, Inc | 0 | $0 | 0.00% | −80−100.0% | Sold out |
| Johnson Financial Group, Inc. | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| Atlantic Trust, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Frazier Financial Advisors, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Cloud Capital Management, LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| EnerVest, Ltd. | – | – | – | – | Not filed |
| Glenmede Investment Management, LP | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Shell Asset Management Co | – | – | – | – | Not filed |
| Optimum Investment Advisors | – | – | – | – | Not filed |
| Binnacle Investments Inc | – | – | – | – | Not filed |
| Hemington Wealth Management | – | – | – | – | Not filed |