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 |
|---|---|---|---|---|---|
| Teacher Retirement System of Texas | 25,664 | $810.2K | 0.00% | −12,499−32.8% | Reduced |
| Fiduciary Trust Co | 25,442 | $803.2K | 0.01% | 00.0% | Unchanged |
| Centiva Capital, LP | 25,152 | $794.0K | 0.04% | +25,152 | New |
| Tower Research Capital LLC (TRC) | 24,803 | $783.0K | 0.02% | +17,547+241.8% | Added |
| Atria Investments LLC | 24,472 | $772.6K | 0.01% | −44−0.2% | Reduced |
| Evolve Private Wealth, LLC | 24,455 | $772.0K | 0.04% | +1,742+7.7% | Added |
| Omers Administration Corp | 24,200 | $764.0K | 0.00% | +24,200 | New |
| Royce & Associates LP | 24,090 | $760.5K | 0.01% | 00.0% | Unchanged |
| Sequoia Financial Advisors, LLC | 23,866 | $753.5K | 0.00% | +12,174+104.1% | Added |
| James Investment Research Inc | 23,736 | $749.3K | 0.08% | +77+0.3% | Added |
| EntryPoint Capital, LLC | 23,498 | $741.8K | 0.22% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 22,707 | $716.9K | 0.00% | −1,399−5.8% | Reduced |
| Dark Forest Capital Management LP | 22,494 | $710.1K | 0.06% | −65,935−74.6% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 22,259 | $702.7K | 0.01% | −16,141−42.0% | Reduced |
| FMR LLC | 21,785 | $687.8K | 0.00% | +326+1.5% | Added |
| Los Angeles Capital Management LLC | 21,323 | $673.2K | 0.00% | +20,422+2,266.6% | Added |
| Elo Mutual Pension Insurance Co | 21,283 | $671.9K | 0.01% | +21,283 | New |
| Mutual of America Capital Management LLC | 20,700 | $653.5K | 0.01% | −233−1.1% | Reduced |
| M&T Bank Corp | 20,573 | $649.8K | 0.00% | −176−0.8% | Reduced |
| Mercer Global Advisors Inc | 19,015 | $600.3K | 0.00% | +7,129+60.0% | Added |
| CWM, LLC | 18,744 | $591.7K | 0.00% | +5,634+43.0% | Added |
| Regions Financial Corp | 18,172 | $573.7K | 0.00% | −710−3.8% | Reduced |
| Swiss Life Asset Management Ltd | 17,944 | $566.5K | 0.00% | +17,944 | New |
| Keybank National Association | 17,682 | $558.2K | 0.00% | −1,433−7.5% | Reduced |
| Cetera Investment Advisers | 17,549 | $554.0K | 0.00% | +867+5.2% | Added |
| CIBC Asset Management Inc | 17,201 | $543.0K | 0.00% | −622−3.5% | Reduced |
| Commerce Bank | 17,066 | $538.8K | 0.00% | −351−2.0% | Reduced |
| Simplex Trading, LLC | 16,976 | $535.9K | 0.02% | +16,976 | New |
| IMC-Chicago, LLC | 16,958 | $535.4K | 0.01% | +16,958 | New |
| Xponance, Inc. | 16,669 | $526.2K | 0.00% | +2,574+18.3% | Added |
| Ritholtz Wealth Management | 15,994 | $504.9K | 0.01% | +4,038+33.8% | Added |
| Lido Advisors, LLC | 15,730 | $496.6K | 0.00% | −467−2.9% | Reduced |
| Tyche Wealth Partners LLC | 15,445 | $487.6K | 0.08% | 00.0% | Unchanged |
| AdvisorShares Investments LLC | 15,360 | $484.9K | 0.09% | +15,360 | New |
| CIBC Bancorp USA Inc. | 15,238 | $481.1K | 0.00% | +15,238 | New |
| Federated Hermes, Inc. | 15,148 | $478.2K | 0.00% | +11,763+347.5% | Added |
| MML Investors Services, LLC | 14,963 | $472.4K | 0.00% | +2,777+22.8% | Added |
| Guggenheim Capital LLC | 14,887 | $470.0K | 0.00% | +14,887 | New |
| Ensign Peak Advisors, Inc | 14,859 | $469.1K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 14,700 | $464.1K | 0.01% | 00.0% | Unchanged |
| DRW Securities, LLC | 14,536 | $458.9K | 0.02% | +3,120+27.3% | Added |
| Resources Investment Advisors, LLC. | 14,491 | $457.5K | 0.00% | −1,491−9.3% | Reduced |
| STRS Ohio | 14,300 | $451.5K | 0.00% | −77,600−84.4% | Reduced |
| Park Avenue Securities LLC | 14,171 | $447.0K | 0.00% | +1,459+11.5% | Added |
| Bokf, NA | 13,988 | $441.6K | 0.01% | −1,066−7.1% | Reduced |
| Vestcor Inc | 13,974 | $441.0K | 0.01% | 00.0% | Unchanged |
| Resonant Capital Advisors, LLC | 13,512 | $426.6K | 0.02% | −145−1.1% | Reduced |
| Coldstream Capital Management Inc | 12,857 | $405.9K | 0.01% | +3,678+40.1% | Added |
| Acadian Asset Management LLC | 12,825 | $404.0K | 0.00% | +12,825 | New |
| Sanctuary Advisors, LLC | 12,744 | $402.3K | 0.00% | +868+7.3% | Added |
| HB Wealth Management, LLC | 12,311 | $388.7K | 0.00% | +1,522+14.1% | Added |
| GTS Securities LLC | 12,187 | $384.7K | 0.01% | +12,187 | New |
| Hantz Financial Services, Inc. | 12,165 | $384.0K | 0.01% | −1,684−12.2% | Reduced |
| Bleakley Financial Group, LLC | 11,857 | $374.3K | 0.01% | +11,857 | New |
| Advisors Asset Management, Inc. | 11,688 | $369.0K | 0.01% | −1,381−10.6% | Reduced |
| Fulton Bank, N.A. | 11,369 | $358.9K | 0.01% | −114−1.0% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 10,985 | $346.8K | 0.00% | −3,201−22.6% | Reduced |
| State of Wyoming | 10,877 | $343.4K | 0.04% | +2,188+25.2% | Added |
| Brucke Financial, Inc. | 10,873 | $343.3K | 0.17% | +10,873 | New |
| Greenleaf Trust | 10,842 | $342.3K | 0.00% | −21−0.2% | Reduced |
| Rockefeller Capital Management L.P. | 10,829 | $341.9K | 0.00% | +2,960+37.6% | Added |
| Aigen Investment Management, LP | 10,766 | $339.9K | 0.09% | +10,766 | New |
| Callan Family Office, LLC | 10,748 | $339.3K | 0.01% | −396−3.6% | Reduced |
| Freestone Grove Partners LP | 10,538 | $332.7K | 0.00% | +10,538 | New |
| DnB Asset Management AS | 10,129 | $319.8K | 0.00% | +10,129 | New |
| Public Employees Retirement Association of Colorado | 10,106 | $319.0K | 0.00% | 00.0% | Unchanged |
| Mangrove Partners | 10,032 | $316.7K | 0.03% | +10,032 | New |
| Marathon Capital Management | 10,000 | $315.7K | 0.07% | 00.0% | Unchanged |
| Profund Advisors LLC | 9,955 | $314.3K | 0.01% | −12,405−55.5% | Reduced |
| Fieldview Capital Management, LLC | 9,903 | $312.6K | 0.09% | −310−3.0% | Reduced |
| Stock Yards Bank & Trust Co | 9,883 | $312.0K | 0.01% | −2,685−21.4% | Reduced |
| US Bancorp | 9,832 | $310.4K | 0.00% | −25,226−72.0% | Reduced |
| Isthmus Partners, LLC | 9,609 | $303.4K | 0.03% | −8−0.1% | Reduced |
| Pacer Advisors, Inc. | 9,603 | $303.0K | 0.00% | −579,883−98.4% | Reduced |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 10,000 | $299.0K | 0.00% | 00.0% | Unchanged |
| JustInvest LLC | 9,311 | $293.9K | 0.00% | −152−1.6% | Reduced |
| HighTower Advisors, LLC | 9,277 | $292.9K | 0.00% | +9,277 | New |
| Canandaigua National Corp | 9,254 | $292.1K | 0.03% | +9,254 | New |
| Retirement Guys Formula LLC | 8,976 | $283.4K | 0.13% | +8,976 | New |
| Vista Finance, LLC | 8,650 | $273.1K | 0.22% | +8,650 | New |
| Merit Financial Group, LLC | 8,578 | $270.8K | 0.00% | +8,578 | New |
| Engineers Gate Manager LP | 8,450 | $266.8K | 0.00% | +8,450 | New |
| Ritter Alpha, LP | 8,450 | $266.8K | 5.58% | +8,450 | New |
| AMG National Trust Bank | 8,320 | $262.7K | 0.01% | +8,320 | New |
| IFP Advisors, Inc | 8,181 | $258.3K | 0.01% | −40.0% | Reduced |
| RSM US Wealth Management LLC | 7,951 | $251.0K | 0.00% | +7,951 | New |
| Ballentine Partners, LLC | 7,731 | $244.1K | 0.00% | +7,731 | New |
| Ethic Inc. | 7,621 | $240.6K | 0.00% | +7,621 | New |
| Janney Montgomery Scott LLC | 7,363 | $232.0K | 0.00% | +7,363 | New |
| Walleye Trading LLC | 7,258 | $229.1K | 0.00% | +7,258 | New |
| Vise Technologies, Inc. | 10,452 | $228.8K | 0.00% | 00.0% | Unchanged |
| Caitlin John, LLC | 7,049 | $222.5K | 0.13% | −7,992−53.1% | Reduced |
| GAMMA Investing LLC | 6,875 | $217.0K | 0.01% | +745+12.2% | Added |
| KBC Group NV | 6,583 | $208.0K | 0.00% | +1,478+29.0% | Added |
| Crossmark Global Holdings, Inc. | 6,564 | $207.2K | 0.00% | +6,564 | New |
| Empirical Asset Management, LLC | 6,387 | $201.6K | 0.05% | +6,387 | New |
| DGS Capital Management, LLC | 6,376 | $201.3K | 0.03% | +6,376 | New |
| Virtus Investment Advisers, Inc. | 6,090 | $192.3K | 0.05% | −1,369−18.4% | Reduced |
| SBI Okasan Asset Management Co.Ltd. | 5,600 | $179.9K | 0.01% | 00.0% | Unchanged |
| Ameritas Advisory Services, LLC | 5,408 | $170.7K | 0.01% | +5,408 | New |