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, Q2 2026
Institutional positions in Magnolia Oil & Gas Corp as of Jun 30, 2026. 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
- 411
- +12 vs. Q1 2026
- Shares held
- 205.5M
- +8.50M (+4.3%) vs. Q1 2026
- Total value
- $5.28B
- −$890.8M (−14.4%) vs. Q1 2026
- New holders
- 59
- 161 more added
- Sold out
- 47
- 142 more reduced
7 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Magnolia Oil & Gas Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Geode Capital Management, LLC | 4,802,973 | $122.9M | 0.01% | +264,861+5.8% | Added |
| Alliancebernstein L.P. | 4,122,434 | $130.1M | 0.05% | −328,808−7.4% | Reduced |
| T. Rowe Price Investment Management, Inc. | 5,180,518 | $132.5M | 0.09% | −13,369−0.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 5,463,526 | $139.8M | 0.06% | −800,282−12.8% | Reduced |
| Jupiter Topco LLC | 6,427,893 | $164.4M | 0.07% | +6,427,893 | New |
| Dimensional Fund Advisors LP | 7,117,449 | $182.1M | 0.03% | +88,668+1.3% | Added |
| Vanguard Capital Management LLC | 7,663,263 | $196.0M | 0.00% | +474,839+6.6% | Added |
| State Street Corp | 9,941,466 | $254.3M | 0.01% | +445,191+4.7% | Added |
| American Century Companies Inc | 11,011,458 | $281.7M | 0.12% | +502,218+4.8% | Added |
| Vanguard Portfolio Management LLC | 15,341,201 | $392.4M | 0.02% | +2,357,806+18.2% | Added |
| BlackRock, Inc. | 31,972,219 | $817.8M | 0.01% | +2,481,070+8.4% | Added |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −364,172−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −237,440−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −153,445−100.0% | Sold out |
| Seven Grand Managers, LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −139,005−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −121,731−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −93,600−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −95,544−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −56,200−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −48,978−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −44,972−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −43,348−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −38,653−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −25,152−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −24,090−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −22,259−100.0% | Sold out |
| AdvisorShares Investments LLC | 0 | $0 | 0.00% | −15,360−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −12,825−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −12,187−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −10,766−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −10,032−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −9,277−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −8,450−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −7,951−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −7,363−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −7,258−100.0% | Sold out |
| Crossmark Global Holdings, Inc. | 0 | $0 | 0.00% | −6,564−100.0% | Sold out |
| Empirical Asset Management, LLC | 0 | $0 | 0.00% | −6,387−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −5,408−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −4,826−100.0% | Sold out |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,310−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −1,120−100.0% | Sold out |
| V-Square Quantitative Management LLC | 0 | $0 | 0.00% | −775−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −677−100.0% | Sold out |
| Truvestments Capital LLC | 0 | $0 | 0.00% | −327−100.0% | Sold out |
| Basepoint Wealth LLC | 0 | $0 | 0.00% | −216−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −175−100.0% | Sold out |
| Legacy Wealth Managment, LLC | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| Annis Gardner Whiting Capital Advisors, LLC | 0 | $0 | 0.00% | −80−100.0% | Sold out |
| Bayforest Capital Ltd | 0 | $0 | 0.00% | −78−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| TopTier Wealth Management, LLC | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Albion Financial Group | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Curio Wealth, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| Corigliano Investment Advisers, LLC | – | – | – | – | Not filed |
| Skopos Labs, Inc. | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Canandaigua National Corp | – | – | – | – | Not filed |
| Ritter Alpha, LP | – | – | – | – | Not filed |
| DGS Capital Management, LLC | – | – | – | – | Not filed |