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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 27,671,647 | $605.7M | 0.01% | +228,299+0.8% | Added |
| Vanguard Group Inc | 19,644,960 | $430.0M | 0.01% | −230,896−1.2% | Reduced |
| American Century Companies Inc | 11,029,847 | $241.4M | 0.12% | −857,808−7.2% | Reduced |
| State Street Corp | 8,800,807 | $192.6M | 0.01% | +125,707+1.4% | Added |
| Dimensional Fund Advisors LP | 6,634,362 | $145.2M | 0.03% | +264,649+4.2% | Added |
| Janus Henderson Group PLC | 6,109,462 | $133.7M | 0.06% | −245,757−3.9% | Reduced |
| TD Asset Management Inc | 5,671,819 | $124.2M | 0.10% | +1,193,458+26.6% | Added |
| Epoch Investment Partners, Inc. | 5,330,064 | $116.7M | 0.66% | +1,191,438+28.8% | Added |
| Wellington Management Group LLP | 5,206,612 | $114.0M | 0.02% | −18,556−0.4% | Reduced |
| Nomura Asset Management International Inc. | 4,959,218 | $108.6M | 0.16% | +4,959,218 | New |
| Alliancebernstein L.P. | 4,747,597 | $103.9M | 0.03% | +88,930+1.9% | Added |
| Geode Capital Management, LLC | 4,435,901 | $97.1M | 0.01% | −85,084−1.9% | Reduced |
| Boston Trust Walden Corp | 4,168,085 | $91.2M | 0.69% | +225,349+5.7% | Added |
| T. Rowe Price Investment Management, Inc. | 3,989,190 | $87.3M | 0.06% | −1,587,272−28.5% | Reduced |
| Victory Capital Management Inc | 3,591,921 | $78.6M | 0.04% | −366,581−9.3% | Reduced |
| Silvercrest Asset Management Group LLC | 3,333,105 | $73.0M | 0.50% | −257,328−7.2% | Reduced |
| Bank of America Corp | 3,218,349 | $70.4M | 0.01% | −21,652−0.7% | Reduced |
| GW&K Investment Management, LLC | 3,169,496 | $69.4M | 0.60% | +404,402+14.6% | Added |
| Allspring Global Investments Holdings, LLC | 2,930,693 | $65.9M | 0.11% | −147,673−4.8% | Reduced |
| Systematic Financial Management LP | 2,938,904 | $64.3M | 1.52% | −33,447−1.1% | Reduced |
| Morgan Stanley | 2,796,949 | $61.2M | 0.00% | +18,316+0.7% | Added |
| Charles Schwab Investment Management Inc | 2,492,892 | $54.6M | 0.01% | +59,065+2.4% | Added |
| Loomis Sayles & Co L P | 2,317,768 | $50.7M | 0.06% | −187,368−7.5% | Reduced |
| Goldman Sachs Group Inc | 2,225,450 | $48.7M | 0.01% | −913,932−29.1% | Reduced |
| Stephens Investment Management Group LLC | 2,154,579 | $47.2M | 0.61% | −2,587−0.1% | Reduced |
| Northern Trust Corp | 2,071,111 | $45.3M | 0.01% | −158,082−7.1% | Reduced |
| Manufacturers Life Insurance Company, The | 1,989,909 | $43.6M | 0.04% | −67,445−3.3% | Reduced |
| Bank of New York Mellon Corp | 1,964,998 | $43.0M | 0.01% | +191,868+10.8% | Added |
| Nuveen, LLC | 1,819,472 | $39.8M | 0.01% | −107,233−5.6% | Reduced |
| Westwood Holdings Group Inc. | 1,761,843 | $38.6M | 0.31% | +1,761,843 | New |
| Principal Financial Group Inc | 1,582,766 | $34.6M | 0.02% | −559,389−26.1% | Reduced |
| HITE Hedge Asset Management LLC | 1,454,388 | $31.8M | 2.03% | +1,263,407+661.5% | Added |
| Renaissance Technologies LLC | 1,184,302 | $25.9M | 0.04% | +67,991+6.1% | Added |
| Bessemer Group Inc | 1,116,993 | $24.5M | 0.04% | +204,467+22.4% | Added |
| JPMorgan Chase & Co | 1,114,379 | $24.4M | 0.00% | +255,407+29.7% | Added |
| SIR Capital Management, L.P. | 1,010,794 | $22.1M | 2.45% | −729,367−41.9% | Reduced |
| Voloridge Investment Management, LLC | 969,487 | $21.2M | 0.07% | +521,459+116.4% | Added |
| First Trust Advisors LP | 875,178 | $19.2M | 0.01% | −665,373−43.2% | Reduced |
| UBS Group AG | 874,758 | $19.1M | 0.00% | −868,663−49.8% | Reduced |
| Balyasny Asset Management LLC | 807,988 | $17.7M | 0.03% | −969,161−54.5% | Reduced |
| Public Sector Pension Investment Board | 758,600 | $16.6M | 0.06% | −45,892−5.7% | Reduced |
| Brandywine Global Investment Management, LLC | 731,423 | $16.0M | 0.11% | −26,790−3.5% | Reduced |
| Invesco Ltd. | 715,497 | $15.7M | 0.00% | −42,512−5.6% | Reduced |
| Arrowstreet Capital, Limited Partnership | 703,189 | $15.4M | 0.01% | −698,090−49.8% | Reduced |
| Gilder Gagnon Howe & Co LLC | 653,948 | $14.3M | 0.15% | −37,377−5.4% | Reduced |
| Heartland Advisors Inc | 651,249 | $14.3M | 0.77% | +74,959+13.0% | Added |
| Corigliano Investment Advisers, LLC | 617,000 | $13.5M | 4.80% | +172,000+38.7% | Added |
| Jefferies Financial Group Inc. | 614,682 | $13.5M | 0.11% | +507,524+473.6% | Added |
| Pacer Advisors, Inc. | 589,486 | $12.9M | 0.03% | −37,259−5.9% | Reduced |
| Rhumbline Advisers | 571,336 | $12.5M | 0.01% | −7,029−1.2% | Reduced |
| Standard Life Aberdeen plc | 490,263 | $10.7M | 0.02% | −24,946−4.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 468,868 | $10.3M | 0.03% | −245,357−34.4% | Reduced |
| State of Wisconsin Investment Board | 437,081 | $9.57M | 0.02% | +42,742+10.8% | Added |
| Legal & General Group Plc | 436,753 | $9.56M | 0.00% | −26,434−5.7% | Reduced |
| Foster Victor Wealth Advisors, LLC | 417,192 | $9.43M | 0.55% | +35,223+9.2% | Added |
| Two Sigma Investments, LP | 426,009 | $9.33M | 0.01% | −278,861−39.6% | Reduced |
| Diamond Hill Capital Management Inc | 414,817 | $9.08M | 0.05% | +281,234+210.5% | Added |
| Man Group plc | 398,944 | $8.73M | 0.02% | −74,388−15.7% | Reduced |
| Trexquant Investment LP | 392,595 | $8.59M | 0.08% | +256,297+188.0% | Added |
| California Public Employees Retirement System | 381,297 | $8.35M | 0.00% | +15,285+4.2% | Added |
| Envestnet Asset Management Inc | 380,579 | $8.33M | 0.00% | −33,977−8.2% | Reduced |
| Nordea Investment Management AB | 377,982 | $8.24M | 0.01% | −68,680−15.4% | Reduced |
| Oberweis Asset Management Inc | 376,300 | $8.24M | 0.30% | 00.0% | Unchanged |
| Millennium Management LLC | 371,528 | $8.13M | 0.01% | +344,069+1,253.0% | Added |
| Barclays PLC | 362,229 | $7.93M | 0.00% | −193,721−34.8% | Reduced |
| Jane Street Group, LLC | 361,863 | $7.92M | 0.01% | −227,162−38.6% | Reduced |
| Citadel Advisors LLC | 349,964 | $7.66M | 0.01% | +225,969+182.2% | Added |
| Swiss National Bank | 347,000 | $7.60M | 0.00% | +2,600+0.8% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 331,057 | $7.25M | 0.02% | −187,297−36.1% | Reduced |
| Osterweis Capital Management Inc | 325,647 | $7.13M | 0.30% | −124,320−27.6% | Reduced |
| Ameriprise Financial Inc | 322,814 | $7.07M | 0.00% | −42,357−11.6% | Reduced |
| AQR Capital Management LLC | 318,574 | $6.97M | 0.00% | +40,086+14.4% | Added |
| HRT Financial LP | 315,510 | $6.91M | 0.02% | +205,730+187.4% | Added |
| Wells Fargo & Company | 305,867 | $6.70M | 0.00% | −8,025−2.6% | Reduced |
| Point72 Asset Management, L.P. | 302,124 | $6.61M | 0.01% | +302,124 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 291,576 | $6.39M | 0.01% | +33,022+12.8% | Added |
| ExodusPoint Capital Management, LP | 283,431 | $6.20M | 0.07% | +244,831+634.3% | Added |
| D. E. Shaw & Co., Inc. | 276,774 | $6.06M | 0.00% | +214,897+347.3% | Added |
| Illinois Municipal Retirement Fund | 270,892 | $5.93M | 0.07% | +34,724+14.7% | Added |
| Phocas Financial Corp. | 266,299 | $5.83M | 0.76% | −455−0.2% | Reduced |
| Raymond James Financial Inc | 264,926 | $5.80M | 0.00% | −84,359−24.2% | Reduced |
| Deutsche Bank AG | 257,096 | $5.63M | 0.00% | +56,714+28.3% | Added |
| King Luther Capital Management Corp | 249,601 | $5.46M | 0.02% | −3,314−1.3% | Reduced |
| Edgestream Partners, L.P. | 242,321 | $5.30M | 0.15% | +123,582+104.1% | Added |
| SEI Investments Co | 235,749 | $5.16M | 0.01% | +44,999+23.6% | Added |
| XTX Topco Ltd | 219,040 | $4.79M | 0.13% | +187,703+599.0% | Added |
| F/M Investments LLC | 205,569 | $4.50M | 0.17% | −5,535−2.6% | Reduced |
| Price T Rowe Associates Inc | 205,480 | $4.50M | 0.00% | +4,541+2.3% | Added |
| UBS Asset Management Americas Inc | 201,075 | $4.40M | 0.00% | −25,208−11.1% | Reduced |
| Rafferty Asset Management, LLC | 196,800 | $4.31M | 0.01% | +17,123+9.5% | Added |
| Creative Planning | 194,578 | $4.26M | 0.00% | +7,836+4.2% | Added |
| Franklin Resources Inc | 189,390 | $4.15M | 0.00% | +38,058+25.1% | Added |
| Moody Aldrich Partners LLC | 189,348 | $4.14M | 0.77% | −14,931−7.3% | Reduced |
| Fred Alger Management, LLC | 172,226 | $3.77M | 0.01% | −350.0% | Reduced |
| Prudential Financial Inc | 171,740 | $3.76M | 0.00% | −44,322−20.5% | Reduced |
| Two Sigma Advisers, LP | 171,100 | $3.75M | 0.01% | −383,400−69.1% | Reduced |
| Woodline Partners LP | 169,213 | $3.70M | 0.01% | −473,971−73.7% | Reduced |
| California State Teachers Retirement System | 167,430 | $3.67M | 0.00% | −2,920−1.7% | Reduced |
| Twinbeech Capital LP | 164,266 | $3.60M | 0.26% | +152,740+1,325.2% | Added |
| Bridgeway Capital Management, LLC | 159,350 | $3.49M | 0.07% | −15,300−8.8% | Reduced |