Magnolia Oil & Gas Corp. Class AMGY
13F holders, Q2 2025 (June 30)384holders −23
36new positions
60sold out
5famous investors
$22.49avg. 13F price*
At the end of Q2 2025, 384 institutions reported holding Magnolia Oil & Gas Corp. Class A (MGY) in their 13F filings, down 23 from Q1 2025. 36 opened new positions and 60 sold out. The largest holders were BlackRock, Inc. ($619.7M), Vanguard Group Inc. ($455.4M) and American Century Companies Inc. ($266.6M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).
- Company
- Magnolia Oil & Gas Corp. Class A
- CUSIP
- 559663109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 36 | $30.0M |
| Exits | 60 | $72.6M |
All 13F filers, Q1 2025 → Q2 2025: 16,430,631 shares bought and 18,558,137 shares sold, net −2,127,506 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 384 holders
| BlackRock, Inc. | 0.01% | Reduce -1.1% | 27,568,578 | $619.7M |
| Vanguard Group Inc. | 0.01% | Reduce -0.7% | 20,257,907 | $455.4M |
| American Century Companies Inc. | 0.15% | Add +12.9% | 11,861,231 | $266.6M |
| State Street Corp. | 0.01% | Reduce -0.6% | 9,797,648 | $220.3M |
| Janus Henderson Group PLC | 0.07% | Add +0.1% | 6,454,104 | $145.1M |
| Dimensional Fund Advisors LP | 0.03% | Add +13.4% | 6,086,269 | $136.8M |
| Macquarie Group Ltd. | 0.16% | Add +1.8% | 5,877,069 | $132.1M |
| T. Rowe Price Investment Management, Inc. | 0.08% | Reduce -22.9% | 5,595,918 | $125.8M |
| Wellington Management Group LLP | 0.02% | Add +1.9% | 5,111,710 | $114.9M |
| Alliancebernstein L.P. | 0.04% | Reduce -11.5% | 4,775,378 | $107.4M |
| Geode Capital Management, LLC | 0.01% | Add +5.5% | 4,531,855 | $101.9M |
| Victory Capital Management Inc. | 0.06% | Reduce -1.0% | 4,339,624 | $97.6M |
| Bank of America Corp. | 0.01% | Reduce -2.1% | 4,248,698 | $95.5M |
| Boston Trust Walden Corp | 0.64% | Add +26.0% | 4,003,770 | $90.0M |
| Goldman Sachs Group Inc. | 0.01% | Add +148.7% | 3,884,051 | $87.3M |
| Silvercrest Asset Management Group LLC | 0.55% | Reduce -3.6% | 3,665,306 | $82.4M |
| Allspring Global Investments Holdings, LLC | 0.13% | Add +4.2% | 3,307,951 | $75.5M |
| Morgan Stanley | 0.00% | Add +7.8% | 3,206,291 | $72.1M |
| GW&K Investment Management, LLC | 0.61% | Reduce -10.8% | 3,053,312 | $68.6M |
| Systematic Financial Management LP | 1.81% | Add +0.8% | 3,013,800 | $67.8M |
| TD Asset Management Inc | 0.06% | Reduce -5.2% | 2,876,552 | $64.7M |
| Epoch Investment Partners, Inc. | 0.30% | Reduce -0.7% | 2,607,565 | $58.6M |
| Loomis Sayles & Co. L P | 0.07% | Reduce -7.3% | 2,580,648 | $58.0M |
| Manufacturers Life Insurance Company, The | 0.05% | Add +16.5% | 2,360,238 | $53.1M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +0.3% | 2,322,108 | $52.2M |
| Woodline Partners LP | 0.27% | Add +1066.2% | 2,310,416 | $51.9M |
| Stephens Investment Management Group LLC | 0.68% | Reduce -4.9% | 2,295,747 | $51.6M |
| Principal Financial Group Inc. | 0.03% | Reduce -7.8% | 2,239,899 | $50.4M |
| Balyasny Asset Management L.P. | 0.12% | Add +14.8% | 2,229,450 | $50.1M |
| EnerVest, Ltd. | 100.00% | No change | 2,099,403 | $47.2M |
| First Trust Advisors LP | 0.04% | Reduce -23.9% | 2,099,340 | $47.2M |
| Northern Trust Corp. | 0.01% | Reduce -1.5% | 1,834,614 | $41.2M |
| Nuveen, LLC | 0.01% | Add +119.3% | 1,829,203 | $41.1M |
| Bank of New York Mellon Corp | 0.01% | Add +0.8% | 1,737,475 | $39.1M |
| UBS Group AG | 0.01% | Add +5.9% | 1,501,309 | $33.7M |
| SIR Capital Management, L.P. | 2.79% | Add +441.6% | 1,390,700 | $31.3M |
| Encompass Capital Advisors LLC | 1.21% | Reduce -37.6% | 1,329,611 | $29.9M |
| Barclays PLC | 0.01% | Reduce -0.4% | 1,226,220 | $27.6M |
| Millennium Management | 0.02% | Add +7.8% | 1,102,807 | $24.8M |
| Renaissance Technologies | 0.03% | Add +65.3% | 1,096,298 | $24.6M |
| Invesco Ltd. | 0.00% | Reduce -3.0% | 976,138 | $21.9M |
| Bessemer Group Inc. | 0.03% | Add +4.5% | 874,024 | $19.6M |
| Two Sigma Advisers, LP | 0.04% | Reduce -21.3% | 843,000 | $19.0M |
| Brandywine Global Investment Management, LLC | 0.13% | Add +43.0% | 805,578 | $18.1M |
| Voya Investment Management LLC | 0.02% | Add +1391.3% | 797,504 | $17.9M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.06% | Reduce -2.8% | 788,968 | $17.7M |
| Gilder Gagnon Howe & Co. LLC | 0.18% | Reduce -6.8% | 743,357 | $16.7M |
| Public Sector Pension Investment Board | 0.07% | Add +5.0% | 725,290 | $16.3M |
| Valley Wealth Managers, Inc. | 1.16% | Reduce -0.2% | 715,217 | $16.1M |
| Jane Street Group, LLC | 0.03% | Reduce -32.7% | 713,279 | $16.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +185.2% | 692,624 | $15.6M |
| TimesSquare Capital Management, LLC | 0.22% | Add +1.9% | 691,959 | $15.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -20.4% | 637,052 | $14.3M |
| Rhumbline Advisers | 0.01% | Add +11.2% | 584,235 | $13.1M |
| Osterweis Capital Management Inc. | 0.80% | Reduce -10.4% | 575,012 | $12.9M |
| Two Sigma Investments, LP | 0.02% | Reduce -43.0% | 572,404 | $12.9M |
| Ranger Investment Management, L.P. | 0.88% | Reduce -44.8% | 560,990 | $12.6M |
| Aberdeen Group plc | 0.02% | Reduce -12.0% | 546,267 | $12.3M |
| Barrow Hanley Mewhinney & Strauss LLC | 0.04% | Reduce -7.6% | 527,095 | $11.8M |
| Dark Forest Capital Management LP | 0.45% | Add +191.0% | 496,807 | $11.2M |
| Legal & General Group Plc | 0.00% | Add +0.7% | 483,490 | $10.9M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +6.3% | 479,309 | $10.8M |
| Nordea Investment Management AB | 0.01% | Add +1.0% | 444,636 | $10.1M |
| T. Rowe Price Associates Inc. | 0.00% | Add +1.3% | 442,781 | $10.0M |
| Neuberger Berman Group LLC | 0.01% | Add +1.3% | 435,841 | $9.8M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -1.1% | 417,217 | $9.4M |
| Aventail Capital Group, LP | 0.40% | Add +0.2% | 400,846 | $9.0M |
| Voloridge Investment Management, LLC | 0.03% | Reduce -47.7% | 392,597 | $8.8M |
| State of Wisconsin Investment Board | 0.02% | Reduce -1.3% | 390,320 | $8.8M |
| Ameriprise Financial Inc. | 0.00% | Reduce -11.8% | 380,977 | $8.6M |
| Susquehanna International Group, LLP | 0.01% | Reduce -6.3% | 380,278 | $8.5M |
| Foster Victor Wealth Advisors, LLC | 0.58% | Add +7.8% | 363,030 | $8.5M |
| Oberweis Asset Management Inc./ | 0.37% | Add +1.9% | 376,300 | $8.5M |
| Corigliano Investment Advisers, LLC | 2.50% | New | 353,000 | $7.9M |
| Citigroup Inc. | 0.01% | Add +4.6% | 350,047 | $7.9M |
| Squarepoint Ops LLC | 0.02% | Reduce -47.6% | 349,188 | $7.8M |
| Raymond James Financial Inc. | 0.00% | Reduce -40.0% | 347,299 | $7.8M |
| Swiss National Bank | 0.00% | Reduce -2.6% | 342,200 | $7.7M |
| Man Group plc | 0.02% | Reduce -16.1% | 332,707 | $7.5M |
| California Public Employees Retirement System | 0.00% | Add +11.2% | 320,662 | $7.2M |
| Royal Bank of Canada | 0.00% | Reduce -25.2% | 306,366 | $6.9M |
| Wells Fargo & Company | 0.00% | Add +10.1% | 300,438 | $6.8M |
| Heartland Advisors Inc. | 0.38% | No change | 300,000 | $6.7M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -35.6% | 269,973 | $6.1M |
| Trexquant Investment LP | 0.07% | Reduce -7.7% | 269,081 | $6.0M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +11.3% | 254,472 | $5.7M |
| King Luther Capital Management Corp. | 0.02% | Reduce -22.5% | 253,349 | $5.7M |
| Moody Aldrich Partners LLC | 1.07% | Add +22.1% | 245,833 | $5.5M |
| Wasatch Advisors LP | 0.03% | Reduce -89.6% | 238,309 | $5.4M |
| Prudential Financial Inc. | 0.01% | Add +4.5% | 194,677 | $5.2M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -19.9% | 227,644 | $5.1M |
| Rafferty Asset Management, LLC | 0.02% | Add +30.8% | 224,529 | $5.0M |
| Capitolis Liquid Global Markets LLC | 0.04% | New | 216,100 | $4.9M |
| F/m Investments LLC | 0.18% | Add +30.8% | 215,006 | $4.8M |
| Campbell & CO Investment Adviser LLC | 0.30% | Add +325.0% | 214,211 | $4.8M |
| AQR Capital Management | 0.00% | Add +279.5% | 213,858 | $4.8M |
| Phocas Financial Corp. | 0.61% | Add +69.0% | 189,378 | $4.3M |
| Deutsche Bank AG | 0.00% | Reduce -6.1% | 182,526 | $4.1M |
| Sei Investments Co. | 0.00% | Reduce -77.5% | 178,912 | $4.0M |
| Algert Global LLC | 0.08% | Add +182.7% | 173,334 | $3.9M |
"% of holder's portfolio" is MGY's weight in each manager's 13F, not the share of Magnolia Oil & Gas Corp. Class A the manager owns.