Magnolia Oil & Gas Corp (MGY)
Who owns Magnolia Oil & Gas Corp (MGY)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.0% of the shares are freely tradable; institutional investors hold 113.6%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.95 | 29,491,149 | +6.6 | 03/31/2026 |
| Vanguard Group Inc | 10.62 | 19,644,960 | -1.2 | 12/31/2025 |
| Vanguard Portfolio Management, LLC | 7.02 | 12,983,395 | +0.0 | 03/31/2026 |
| American Century Companies Inc | 5.68 | 10,509,240 | -4.7 | 03/31/2026 |
| State Street Corp | 5.13 | 9,496,275 | +7.9 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.89 | 7,188,424 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.80 | 7,028,781 | +5.9 | 03/31/2026 |
| HHG PLC | 3.40 | 6,279,636 | +2.8 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.94 | 10,983,225 | +0.0 | 05/29/2026 |
| Avantis US Small Cap Value ETF | 3.42 | 6,327,650 | +0.0 | 05/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.