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, Q1 2026
Institutional positions in Magnolia Oil & Gas Corp as of Mar 31, 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
- 406
- +37 vs. Q4 2025
- Shares held
- 203.8M
- +24.9M (+13.9%) vs. Q4 2025
- Total value
- $6.39B
- +$2.47B (+62.9%) vs. Q4 2025
- New holders
- 76
- 148 more added
- Sold out
- 39
- 138 more reduced
10 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Magnolia Oil & Gas Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 29,491,149 | $931.0M | 0.02% | +1,819,502+6.6% | Added |
| Vanguard Portfolio Management LLC | 12,983,395 | $409.9M | 0.02% | +12,983,395 | New |
| American Century Companies Inc | 10,509,240 | $331.8M | 0.17% | −520,607−4.7% | Reduced |
| State Street Corp | 9,496,275 | $299.8M | 0.01% | +695,468+7.9% | Added |
| Vanguard Capital Management LLC | 7,188,424 | $226.9M | 0.01% | +7,188,424 | New |
| Dimensional Fund Advisors LP | 7,028,781 | $221.9M | 0.05% | +394,419+5.9% | Added |
| Janus Henderson Group PLC | 6,279,636 | $198.2M | 0.09% | +170,174+2.8% | Added |
| Arrowstreet Capital, Limited Partnership | 6,263,808 | $197.7M | 0.11% | +5,560,619+790.8% | Added |
| T. Rowe Price Investment Management, Inc. | 5,193,887 | $164.0M | 0.11% | +1,204,697+30.2% | Added |
| Nomura Asset Management International Inc. | 4,972,261 | $157.0M | 0.27% | +13,043+0.3% | Added |
| TD Asset Management Inc | 4,941,979 | $156.0M | 0.13% | −729,840−12.9% | Reduced |
| Geode Capital Management, LLC | 4,538,112 | $143.3M | 0.01% | +102,211+2.3% | Added |
| Epoch Investment Partners, Inc. | 4,275,509 | $135.0M | 0.82% | −1,054,555−19.8% | Reduced |
| Bank of America Corp | 3,877,361 | $122.4M | 0.01% | +659,012+20.5% | Added |
| Boston Trust Walden Corp | 3,227,906 | $101.9M | 0.84% | −940,179−22.6% | Reduced |
| Goldman Sachs Group Inc | 3,131,348 | $98.9M | 0.01% | +905,898+40.7% | Added |
| Victory Capital Management Inc | 3,091,053 | $97.6M | 0.06% | −500,868−13.9% | Reduced |
| Alliancebernstein L.P. | 4,451,242 | $97.4M | 0.03% | −296,355−6.2% | Reduced |
| GW&K Investment Management, LLC | 3,081,264 | $97.3M | 0.86% | −88,232−2.8% | Reduced |
| Morgan Stanley | 3,027,975 | $95.6M | 0.01% | +231,026+8.3% | Added |
| Systematic Financial Management LP | 2,813,278 | $88.8M | 2.04% | −125,626−4.3% | Reduced |
| Silvercrest Asset Management Group LLC | 2,666,648 | $84.2M | 0.61% | −666,457−20.0% | Reduced |
| Charles Schwab Investment Management Inc | 2,613,478 | $82.5M | 0.01% | +120,586+4.8% | Added |
| Allspring Global Investments Holdings, LLC | 2,699,004 | $81.4M | 0.14% | −231,689−7.9% | Reduced |
| Nuveen, LLC | 2,253,068 | $71.1M | 0.02% | +433,596+23.8% | Added |
| Loomis Sayles & Co L P | 2,179,644 | $68.8M | 0.09% | −138,124−6.0% | Reduced |
| Stephens Investment Management Group LLC | 2,172,120 | $68.6M | 0.94% | +17,541+0.8% | Added |
| Northern Trust Corp | 2,132,100 | $67.3M | 0.01% | +60,989+2.9% | Added |
| Bank of New York Mellon Corp | 1,943,586 | $61.4M | 0.01% | −21,412−1.1% | Reduced |
| Renaissance Technologies LLC | 1,701,802 | $53.7M | 0.08% | +517,500+43.7% | Added |
| Two Sigma Investments, LP | 1,693,795 | $53.5M | 0.04% | +1,267,786+297.6% | Added |
| Westwood Holdings Group Inc. | 1,590,570 | $50.2M | 0.37% | −171,273−9.7% | Reduced |
| Principal Financial Group Inc | 1,544,274 | $48.8M | 0.03% | −38,492−2.4% | Reduced |
| Manufacturers Life Insurance Company, The | 1,534,372 | $48.4M | 0.04% | −455,537−22.9% | Reduced |
| Bessemer Group Inc | 1,254,441 | $39.6M | 0.06% | +137,448+12.3% | Added |
| JPMorgan Chase & Co | 1,200,481 | $38.6M | 0.00% | +86,102+7.7% | Added |
| Fred Alger Management, LLC | 1,195,380 | $37.7M | 0.17% | +1,023,154+594.1% | Added |
| Vanguard Fiduciary Trust Co | 1,181,924 | $37.3M | 0.01% | +1,181,924 | New |
| UBS Group AG | 1,170,209 | $36.9M | 0.01% | +295,451+33.8% | Added |
| Voloridge Investment Management, LLC | 983,876 | $31.1M | 0.12% | +14,389+1.5% | Added |
| First Trust Advisors LP | 976,356 | $30.8M | 0.02% | +101,178+11.6% | Added |
| SIR Capital Management, L.P. | 851,094 | $26.9M | 2.51% | −159,700−15.8% | Reduced |
| Public Sector Pension Investment Board | 801,757 | $25.3M | 0.08% | +43,157+5.7% | Added |
| Standard Life Aberdeen plc | 768,072 | $24.2M | 0.04% | +277,809+56.7% | Added |
| Invesco Ltd. | 704,724 | $22.2M | 0.00% | −10,773−1.5% | Reduced |
| Point72 Asset Management, L.P. | 692,589 | $21.9M | 0.04% | +390,465+129.2% | Added |
| Heartland Advisors Inc | 630,475 | $19.9M | 1.02% | −20,774−3.2% | Reduced |
| Millennium Management LLC | 599,017 | $18.9M | 0.01% | +227,489+61.2% | Added |
| Rhumbline Advisers | 577,269 | $18.2M | 0.02% | +5,933+1.0% | Added |
| Algert Global LLC | 523,620 | $16.5M | 0.25% | +523,620 | New |
| AQR Capital Management LLC | 497,885 | $15.7M | 0.01% | +179,311+56.3% | Added |
| Gilder Gagnon Howe & Co LLC | 486,526 | $15.4M | 0.18% | −167,422−25.6% | Reduced |
| SEI Investments Co | 455,352 | $14.4M | 0.01% | +219,603+93.2% | Added |
| Squarepoint Ops LLC | 454,853 | $14.4M | 0.03% | +329,978+264.2% | Added |
| Oberweis Asset Management Inc | 454,466 | $14.3M | 0.42% | +78,166+20.8% | Added |
| Creative Planning | 430,579 | $13.6M | 0.01% | +236,001+121.3% | Added |
| Envestnet Asset Management Inc | 422,086 | $13.3M | 0.00% | +41,507+10.9% | Added |
| Neuberger Berman Group LLC | 418,247 | $13.2M | 0.01% | +397,277+1,894.5% | Added |
| California Public Employees Retirement System | 413,997 | $13.1M | 0.01% | +32,700+8.6% | Added |
| Corigliano Investment Advisers, LLC | 398,000 | $12.6M | 4.91% | −219,000−35.5% | Reduced |
| State of Wisconsin Investment Board | 386,531 | $12.2M | 0.03% | −50,550−11.6% | Reduced |
| Legal & General Group Plc | 385,963 | $12.2M | 0.00% | −50,790−11.6% | Reduced |
| Foster Victor Wealth Advisors, LLC | 424,272 | $12.1M | 0.69% | +7,080+1.7% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 381,899 | $12.1M | 0.04% | +50,842+15.4% | Added |
| Nordea Investment Management AB | 362,828 | $11.7M | 0.01% | −15,154−4.0% | Reduced |
| Citadel Advisors LLC | 364,172 | $11.5M | 0.01% | +14,208+4.1% | Added |
| Edgestream Partners, L.P. | 352,998 | $11.1M | 0.37% | +110,677+45.7% | Added |
| Swiss National Bank | 348,300 | $11.0M | 0.01% | +1,300+0.4% | Added |
| Diamond Hill Capital Management Inc | 325,021 | $10.3M | 0.06% | −89,796−21.6% | Reduced |
| Ameriprise Financial Inc | 301,877 | $9.53M | 0.00% | −20,937−6.5% | Reduced |
| Raymond James Financial Inc | 283,586 | $8.95M | 0.00% | +18,660+7.0% | Added |
| Jane Street Group, LLC | 277,770 | $8.77M | 0.01% | −84,093−23.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 275,307 | $8.69M | 0.01% | −16,269−5.6% | Reduced |
| HRT Financial LP | 273,438 | $8.63M | 0.02% | −42,072−13.3% | Reduced |
| Trexquant Investment LP | 258,646 | $8.17M | 0.06% | −133,949−34.1% | Reduced |
| BNP Paribas Arbitrage, SA | 251,446 | $7.94M | 0.01% | +230,487+1,099.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 249,319 | $7.87M | 0.02% | −219,549−46.8% | Reduced |
| Price T Rowe Associates Inc | 244,319 | $7.71M | 0.00% | +38,839+18.9% | Added |
| Rafferty Asset Management, LLC | 239,979 | $7.58M | 0.03% | +43,179+21.9% | Added |
| Campbell & CO Investment Adviser LLC | 237,440 | $7.50M | 0.43% | +184,843+351.4% | Added |
| Prudential Financial Inc | 234,640 | $7.41M | 0.01% | +62,900+36.6% | Added |
| King Luther Capital Management Corp | 232,258 | $7.33M | 0.03% | −17,343−6.9% | Reduced |
| Franklin Resources Inc | 225,326 | $7.11M | 0.00% | +35,936+19.0% | Added |
| Deutsche Bank AG | 220,201 | $6.95M | 0.00% | −36,895−14.4% | Reduced |
| Russell Investments Group, Ltd. | 219,103 | $6.92M | 0.01% | +129,505+144.5% | Added |
| Clark Capital Management Group, Inc. | 213,939 | $6.75M | 0.04% | +213,939 | New |
| California State Teachers Retirement System | 211,468 | $6.68M | 0.01% | +44,038+26.3% | Added |
| UBS Asset Management Americas Inc | 206,813 | $6.53M | 0.00% | +5,738+2.9% | Added |
| Man Group plc | 204,321 | $6.45M | 0.01% | −194,623−48.8% | Reduced |
| Emerald Investment Advisers, LLC | 203,524 | $6.43M | 0.58% | +203,524 | New |
| Phocas Financial Corp. | 199,397 | $6.29M | 0.99% | −66,902−25.1% | Reduced |
| Moody Aldrich Partners LLC | 192,627 | $6.08M | 1.10% | +3,279+1.7% | Added |
| Susquehanna International Group, LLP | 192,140 | $6.07M | 0.01% | +162,225+542.3% | Added |
| Great Lakes Advisors, LLC | 186,566 | $5.89M | 0.05% | +30,066+19.2% | Added |
| Barclays PLC | 186,396 | $5.88M | 0.00% | −175,833−48.5% | Reduced |
| Wells Fargo & Company | 167,815 | $5.30M | 0.00% | −138,052−45.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 153,445 | $4.84M | 0.09% | +127,077+481.9% | Added |
| Great West Life Assurance Co | 150,009 | $4.74M | 0.01% | −6,536−4.2% | Reduced |
| Seven Grand Managers, LLC | 150,000 | $4.74M | 0.32% | +150,000 | New |
| Vanguard Asset Management, Ltd | 143,874 | $4.54M | 0.00% | +143,874 | New |