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 |
|---|---|---|---|---|---|
| Quantinno Capital Management LP | 135,229 | $4.27M | 0.01% | +105,532+355.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 137,891 | $4.35M | 0.01% | +48,622+54.5% | Added |
| EAM Investors, LLC | 139,005 | $4.39M | 0.51% | +139,005 | New |
| Cerity Partners LLC | 139,475 | $4.40M | 0.01% | +10,385+8.0% | Added |
| State Board of Administration of Florida Retirement System | 141,911 | $4.48M | 0.01% | −10,105−6.6% | Reduced |
| Pathstone Holdings, LLC | 142,535 | $4.50M | 0.02% | −3,612−2.5% | Reduced |
| Vanguard Asset Management, Ltd | 143,874 | $4.54M | 0.00% | +143,874 | New |
| Seven Grand Managers, LLC | 150,000 | $4.74M | 0.32% | +150,000 | New |
| Great West Life Assurance Co | 150,009 | $4.74M | 0.01% | −6,536−4.2% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 153,445 | $4.84M | 0.09% | +127,077+481.9% | Added |
| Wells Fargo & Company | 167,815 | $5.30M | 0.00% | −138,052−45.1% | Reduced |
| Barclays PLC | 186,396 | $5.88M | 0.00% | −175,833−48.5% | Reduced |
| Great Lakes Advisors, LLC | 186,566 | $5.89M | 0.05% | +30,066+19.2% | Added |
| Susquehanna International Group, LLP | 192,140 | $6.07M | 0.01% | +162,225+542.3% | Added |
| Moody Aldrich Partners LLC | 192,627 | $6.08M | 1.10% | +3,279+1.7% | Added |
| Phocas Financial Corp. | 199,397 | $6.29M | 0.99% | −66,902−25.1% | Reduced |
| Emerald Investment Advisers, LLC | 203,524 | $6.43M | 0.58% | +203,524 | New |
| Man Group plc | 204,321 | $6.45M | 0.01% | −194,623−48.8% | Reduced |
| UBS Asset Management Americas Inc | 206,813 | $6.53M | 0.00% | +5,738+2.9% | Added |
| California State Teachers Retirement System | 211,468 | $6.68M | 0.01% | +44,038+26.3% | Added |
| Clark Capital Management Group, Inc. | 213,939 | $6.75M | 0.04% | +213,939 | New |
| Russell Investments Group, Ltd. | 219,103 | $6.92M | 0.01% | +129,505+144.5% | Added |
| Deutsche Bank AG | 220,201 | $6.95M | 0.00% | −36,895−14.4% | Reduced |
| Franklin Resources Inc | 225,326 | $7.11M | 0.00% | +35,936+19.0% | Added |
| King Luther Capital Management Corp | 232,258 | $7.33M | 0.03% | −17,343−6.9% | Reduced |
| Prudential Financial Inc | 234,640 | $7.41M | 0.01% | +62,900+36.6% | Added |
| Campbell & CO Investment Adviser LLC | 237,440 | $7.50M | 0.43% | +184,843+351.4% | Added |
| Rafferty Asset Management, LLC | 239,979 | $7.58M | 0.03% | +43,179+21.9% | Added |
| Price T Rowe Associates Inc | 244,319 | $7.71M | 0.00% | +38,839+18.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 249,319 | $7.87M | 0.02% | −219,549−46.8% | Reduced |
| BNP Paribas Arbitrage, SA | 251,446 | $7.94M | 0.01% | +230,487+1,099.7% | Added |
| Trexquant Investment LP | 258,646 | $8.17M | 0.06% | −133,949−34.1% | Reduced |
| HRT Financial LP | 273,438 | $8.63M | 0.02% | −42,072−13.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 275,307 | $8.69M | 0.01% | −16,269−5.6% | Reduced |
| Jane Street Group, LLC | 277,770 | $8.77M | 0.01% | −84,093−23.2% | Reduced |
| Raymond James Financial Inc | 283,586 | $8.95M | 0.00% | +18,660+7.0% | Added |
| Ameriprise Financial Inc | 301,877 | $9.53M | 0.00% | −20,937−6.5% | Reduced |
| Diamond Hill Capital Management Inc | 325,021 | $10.3M | 0.06% | −89,796−21.6% | Reduced |
| Swiss National Bank | 348,300 | $11.0M | 0.01% | +1,300+0.4% | Added |
| Edgestream Partners, L.P. | 352,998 | $11.1M | 0.37% | +110,677+45.7% | Added |
| Citadel Advisors LLC | 364,172 | $11.5M | 0.01% | +14,208+4.1% | Added |
| Nordea Investment Management AB | 362,828 | $11.7M | 0.01% | −15,154−4.0% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 381,899 | $12.1M | 0.04% | +50,842+15.4% | Added |
| Foster Victor Wealth Advisors, LLC | 424,272 | $12.1M | 0.69% | +7,080+1.7% | Added |
| Legal & General Group Plc | 385,963 | $12.2M | 0.00% | −50,790−11.6% | Reduced |
| State of Wisconsin Investment Board | 386,531 | $12.2M | 0.03% | −50,550−11.6% | Reduced |
| Corigliano Investment Advisers, LLC | 398,000 | $12.6M | 4.91% | −219,000−35.5% | Reduced |
| California Public Employees Retirement System | 413,997 | $13.1M | 0.01% | +32,700+8.6% | Added |
| Neuberger Berman Group LLC | 418,247 | $13.2M | 0.01% | +397,277+1,894.5% | Added |
| Envestnet Asset Management Inc | 422,086 | $13.3M | 0.00% | +41,507+10.9% | Added |
| Creative Planning | 430,579 | $13.6M | 0.01% | +236,001+121.3% | Added |
| Oberweis Asset Management Inc | 454,466 | $14.3M | 0.42% | +78,166+20.8% | Added |
| Squarepoint Ops LLC | 454,853 | $14.4M | 0.03% | +329,978+264.2% | Added |
| SEI Investments Co | 455,352 | $14.4M | 0.01% | +219,603+93.2% | Added |
| Gilder Gagnon Howe & Co LLC | 486,526 | $15.4M | 0.18% | −167,422−25.6% | Reduced |
| AQR Capital Management LLC | 497,885 | $15.7M | 0.01% | +179,311+56.3% | Added |
| Algert Global LLC | 523,620 | $16.5M | 0.25% | +523,620 | New |
| Rhumbline Advisers | 577,269 | $18.2M | 0.02% | +5,933+1.0% | Added |
| Millennium Management LLC | 599,017 | $18.9M | 0.01% | +227,489+61.2% | Added |
| Heartland Advisors Inc | 630,475 | $19.9M | 1.02% | −20,774−3.2% | Reduced |
| Point72 Asset Management, L.P. | 692,589 | $21.9M | 0.04% | +390,465+129.2% | Added |
| Invesco Ltd. | 704,724 | $22.2M | 0.00% | −10,773−1.5% | Reduced |
| Standard Life Aberdeen plc | 768,072 | $24.2M | 0.04% | +277,809+56.7% | Added |
| Public Sector Pension Investment Board | 801,757 | $25.3M | 0.08% | +43,157+5.7% | Added |
| SIR Capital Management, L.P. | 851,094 | $26.9M | 2.51% | −159,700−15.8% | Reduced |
| First Trust Advisors LP | 976,356 | $30.8M | 0.02% | +101,178+11.6% | Added |
| Voloridge Investment Management, LLC | 983,876 | $31.1M | 0.12% | +14,389+1.5% | Added |
| UBS Group AG | 1,170,209 | $36.9M | 0.01% | +295,451+33.8% | Added |
| Vanguard Fiduciary Trust Co | 1,181,924 | $37.3M | 0.01% | +1,181,924 | New |
| Fred Alger Management, LLC | 1,195,380 | $37.7M | 0.17% | +1,023,154+594.1% | Added |
| JPMorgan Chase & Co | 1,200,481 | $38.6M | 0.00% | +86,102+7.7% | Added |
| Bessemer Group Inc | 1,254,441 | $39.6M | 0.06% | +137,448+12.3% | Added |
| Manufacturers Life Insurance Company, The | 1,534,372 | $48.4M | 0.04% | −455,537−22.9% | Reduced |
| Principal Financial Group Inc | 1,544,274 | $48.8M | 0.03% | −38,492−2.4% | Reduced |
| Westwood Holdings Group Inc. | 1,590,570 | $50.2M | 0.37% | −171,273−9.7% | Reduced |
| Two Sigma Investments, LP | 1,693,795 | $53.5M | 0.04% | +1,267,786+297.6% | Added |
| Renaissance Technologies LLC | 1,701,802 | $53.7M | 0.08% | +517,500+43.7% | Added |
| Bank of New York Mellon Corp | 1,943,586 | $61.4M | 0.01% | −21,412−1.1% | Reduced |
| Northern Trust Corp | 2,132,100 | $67.3M | 0.01% | +60,989+2.9% | Added |
| Stephens Investment Management Group LLC | 2,172,120 | $68.6M | 0.94% | +17,541+0.8% | Added |
| Loomis Sayles & Co L P | 2,179,644 | $68.8M | 0.09% | −138,124−6.0% | Reduced |
| Nuveen, LLC | 2,253,068 | $71.1M | 0.02% | +433,596+23.8% | Added |
| Allspring Global Investments Holdings, LLC | 2,699,004 | $81.4M | 0.14% | −231,689−7.9% | Reduced |
| Charles Schwab Investment Management Inc | 2,613,478 | $82.5M | 0.01% | +120,586+4.8% | Added |
| Silvercrest Asset Management Group LLC | 2,666,648 | $84.2M | 0.61% | −666,457−20.0% | Reduced |
| Systematic Financial Management LP | 2,813,278 | $88.8M | 2.04% | −125,626−4.3% | Reduced |
| Morgan Stanley | 3,027,975 | $95.6M | 0.01% | +231,026+8.3% | Added |
| GW&K Investment Management, LLC | 3,081,264 | $97.3M | 0.86% | −88,232−2.8% | Reduced |
| Alliancebernstein L.P. | 4,451,242 | $97.4M | 0.03% | −296,355−6.2% | Reduced |
| Victory Capital Management Inc | 3,091,053 | $97.6M | 0.06% | −500,868−13.9% | Reduced |
| Goldman Sachs Group Inc | 3,131,348 | $98.9M | 0.01% | +905,898+40.7% | Added |
| Boston Trust Walden Corp | 3,227,906 | $101.9M | 0.84% | −940,179−22.6% | Reduced |
| Bank of America Corp | 3,877,361 | $122.4M | 0.01% | +659,012+20.5% | Added |
| Epoch Investment Partners, Inc. | 4,275,509 | $135.0M | 0.82% | −1,054,555−19.8% | Reduced |
| Geode Capital Management, LLC | 4,538,112 | $143.3M | 0.01% | +102,211+2.3% | Added |
| TD Asset Management Inc | 4,941,979 | $156.0M | 0.13% | −729,840−12.9% | Reduced |
| Nomura Asset Management International Inc. | 4,972,261 | $157.0M | 0.27% | +13,043+0.3% | Added |
| T. Rowe Price Investment Management, Inc. | 5,193,887 | $164.0M | 0.11% | +1,204,697+30.2% | Added |
| Arrowstreet Capital, Limited Partnership | 6,263,808 | $197.7M | 0.11% | +5,560,619+790.8% | Added |
| Janus Henderson Group PLC | 6,279,636 | $198.2M | 0.09% | +170,174+2.8% | Added |