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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, Q2 2026

Institutional positions in Magnolia Oil & Gas Corp as of Jun 30, 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
411
+12 vs. Q1 2026
Shares held
205.5M
+8.50M (+4.3%) vs. Q1 2026
Total value
$5.28B
−$890.8M (−14.4%) vs. Q1 2026
New holders
59
161 more added
Sold out
47
142 more reduced

7 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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.

Institutional holdersQ2 2026: 411 institutions
Q1 2021: 190 institutionsQ2 2021: 206 institutionsQ3 2021: 240 institutionsQ4 2021: 234 institutionsQ1 2022: 251 institutionsQ2 2022: 283 institutionsQ3 2022: 280 institutionsQ4 2022: 295 institutionsQ1 2023: 276 institutionsQ2 2023: 281 institutionsQ3 2023: 288 institutionsQ4 2023: 297 institutionsQ1 2024: 323 institutionsQ2 2024: 347 institutionsQ3 2024: 367 institutionsQ4 2024: 383 institutionsQ1 2025: 407 institutionsQ2 2025: 385 institutionsQ3 2025: 373 institutionsQ4 2025: 379 institutionsQ1 2026: 406 institutionsQ2 2026: 411 institutions
Value heldQ2 2026: $5.28B
Q1 2021: $2.07BQ2 2021: $2.83BQ3 2021: $3.23BQ4 2021: $3.55BQ1 2022: $4.47BQ2 2022: $4.14BQ3 2022: $3.83BQ4 2022: $4.56BQ1 2023: $4.37BQ2 2023: $4.14BQ3 2023: $4.41BQ4 2023: $4.19BQ1 2024: $5.78BQ2 2024: $5.60BQ3 2024: $5.44BQ4 2024: $5.15BQ1 2025: $5.51BQ2 2025: $4.85BQ3 2025: $4.92BQ4 2025: $4.37BQ1 2026: $6.39BQ2 2026: $5.28B
Institutions holding MGY and their total value by quarter
QuarterHoldersValue
Q2 2026411$5.28B
Q1 2026406$6.39B
Q4 2025379$4.37B
Q3 2025373$4.92B
Q2 2025385$4.85B
Q1 2025407$5.51B
Q4 2024383$5.15B
Q3 2024367$5.44B
Q2 2024347$5.60B
Q1 2024323$5.78B
Q4 2023297$4.19B
Q3 2023288$4.41B
Q2 2023281$4.14B
Q1 2023276$4.37B
Q4 2022295$4.56B
Q3 2022280$3.83B
Q2 2022283$4.14B
Q1 2022251$4.47B
Q4 2021234$3.55B
Q3 2021240$3.23B
Q2 2021206$2.83B
Q1 2021190$2.07B

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Magnolia Oil & Gas Corp; share changes are against Q1 2026.

Institutions holding MGY in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Farther Finance Advisors, LLC4,424$113.2K0.00%−60−1.3%Reduced
Exchange Traded Concepts, LLC4,084$104.5K0.00%+627+18.1%Added
Pinnacle Wealth Planning Services, Inc.4,032$103.1K0.01%+74+1.9%Added
SBI Okasan Asset Management Co.Ltd.3,800$97.8K0.00%−1,800−32.1%Reduced
Walleye Capital LLC3,161$80.9K0.00%+3,161New
SRS Capital Advisors, Inc.3,129$80.0K0.00%+2,984+2,057.9%Added
Smartleaf Asset Management LLC2,910$74.9K0.00%00.0%Unchanged
Independence Bank of Kentucky2,900$74.2K0.01%00.0%Unchanged
Parallel Advisors, LLC2,447$62.6K0.00%−125−4.9%Reduced
Arlington Trust Co LLC2,288$58.5K0.00%00.0%Unchanged
Versant Capital Management, Inc2,257$57.7K0.01%+1,111+96.9%Added
Assetmark, Inc2,233$57.1K0.00%−41−1.8%Reduced
Ancora Advisors, LLC2,000$51.2K0.00%00.0%Unchanged
Geneos Wealth Management Inc.2,000$51.2K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC1,739$44.5K0.00%+1,668+2,349.3%Added
Optiver Holding B.V.1,711$43.8K0.00%+1,695+10,593.8%Added
Global Retirement Partners, LLC1,630$41.7K0.00%+1,630New
Employees Retirement System of Texas1,559$40.0K0.00%00.0%Unchanged
Salomon & Ludwin, LLC1,571$39.2K0.00%−223−12.4%Reduced
Harbor Investment Advisory, LLC1,529$39.1K0.00%+1,529New
Covestor Ltd1,526$39.0K0.02%−622−29.0%Reduced
Ares Financial Consulting, LLC1,485$38.0K0.03%00.0%Unchanged
Wellington-Altus USA Inc.1,163$36.7K0.03%00.0%Unchanged
First Horizon Corp1,401$35.8K0.00%−60−4.1%Reduced
Kemnay Advisory Services Inc.1,359$34.8K0.00%−1,981−59.3%Reduced
Caitlin John, LLC1,330$34.0K0.02%−5,719−81.1%Reduced
Institute for Wealth Management, LLC.1,217$31.1K0.00%+1,217New
Umb Bank N A1,178$30.1K0.00%+94+8.7%Added
Mather Group, LLC.1,090$27.9K0.00%00.0%Unchanged
Los Angeles Capital Management LLC980$25.1K0.00%−20,343−95.4%Reduced
Financial Management Professionals, Inc.972$24.9K0.00%00.0%Unchanged
Nomura Asset Management Co Ltd950$24.3K0.00%00.0%Unchanged
Group One Trading, L.P.854$21.8K0.00%−130−13.2%Reduced
Richardson Financial Services Inc.779$19.9K0.01%+268+52.4%Added
SJS Investment Consulting Inc.774$19.8K0.00%+732+1,742.9%Added
Huntington National Bank762$19.5K0.00%−153−16.7%Reduced
Y.D. More Investments Ltd750$19.2K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.718$18.4K0.00%00.0%Unchanged
Brown Brothers Harriman & Co674$17.2K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC660$16.9K0.00%−826−55.6%Reduced
Basecamp Wealth Advisors LLC644$16.5K0.00%+36+5.9%Added
Bare Financial Services, Inc620$15.9K0.00%+309+99.4%Added
Center for Financial Planning, Inc.566$14.5K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co562$14.4K0.00%+247+78.4%Added
Key Financial Inc560$14.3K0.00%00.0%Unchanged
Wall Street Access Asset Management, LLC507$13.0K0.00%+134+35.9%Added
Rothschild Investment LLC476$12.2K0.00%−111−18.9%Reduced
TD Private Client Wealth LLC467$11.9K0.00%+22+4.9%Added
Massmutual Trust Co FSB401$10.3K0.00%00.0%Unchanged
Persistent Asset Partners Ltd398$10.2K0.00%+398New
Trust Co of Vermont382$9.77K0.00%+382New
Essential Partners LLC374$9.57K0.00%−50−11.8%Reduced
Keating Financial Advisory Services, Inc.367$9.39K0.00%+107+41.2%Added
Bogart Wealth, LLC364$9.31K0.00%00.0%Unchanged
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.354$9.05K0.00%00.0%Unchanged
Bryn Mawr Trust Co350$8.95K0.00%00.0%Unchanged
Private Wealth Management Group, LLC341$8.72K0.00%00.0%Unchanged
Park Place Capital Corp339$8.67K0.00%00.0%Unchanged
Clearstead Advisors, LLC324$8.29K0.00%+324New
CVA Family Office, LLC306$7.83K0.00%+27+9.7%Added
Valued Wealth Advisors LLC294$7.52K0.00%−612−67.5%Reduced
GWM Advisors LLC288$7.36K0.00%−105−26.7%Reduced
Picton Mahoney Asset Management207$5.29K0.00%+159+331.3%Added
Larson Financial Group LLC195$4.99K0.00%+147+306.3%Added
Continuum Advisory, LLC189$4.83K0.00%+189New
Whittier Trust Co of Nevada Inc185$4.77K0.00%−169−47.7%Reduced
LRI Investments, LLC178$4.55K0.00%−72−28.8%Reduced
S&T Bank165$4.22K0.00%+4+2.5%Added
Fortitude Family Office, LLC152$3.89K0.00%−13−7.9%Reduced
Action Point Financial Planning, LLC126$3.17K0.00%+126New
Sunrise Financial Services, LLC123$3.15K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC120$3.07K0.00%+21+21.2%Added
Cornerstone Planning Group LLC119$3.06K0.00%+51+75.0%Added
Rossby Financial, LCC110$2.81K0.00%+10+10.0%Added
Farmers & Merchants Investments Inc100$2.56K0.00%00.0%Unchanged
Torren Management, LLC95$2.42K0.00%+1+1.1%Added
William B. Walkup & Associates, Inc.90$2.30K0.00%+90New
Silver Grove Financial Group, Inc.88$2.25K0.00%+88New
SBI Securities Co., Ltd.67$1.71K0.00%−4−5.6%Reduced
Prestige Wealth Management Group LLC67$1.71K0.00%+29+76.3%Added
Creative Capital Management Investments LLC62$1.59K0.00%+62New
Westfuller Advisors, LLC53$1.35K0.00%00.0%Unchanged
Ankerstar Wealth, LLC46$1.18K0.00%00.0%Unchanged
CoreCap Advisors, LLC46$1.18K0.00%+46New
Parkside Financial Bank & Trust44$1.13K0.00%00.0%Unchanged
Glen Eagle Advisors, LLC42$1.08K0.00%00.0%Unchanged
Noble Wealth Management PBC42$1.07K0.00%+42New
Signature Equity Partners, LLC41$1.05K0.00%+41New
Gilpin Wealth Management, LLC37$9470.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC37$9460.00%+1+2.8%Added
Central Trust Co36$9210.00%00.0%Unchanged
Plante Moran Financial Advisors, LLC36$9210.00%+36New
UMA Financial Services, Inc.35$8960.00%00.0%Unchanged
WPG Advisers, LLC31$7930.00%00.0%Unchanged
Rialto Wealth Management, LLC29$7420.00%+5+20.8%Added
Brown, Lisle/Cummings, Inc.28$7160.00%+28New
DiNuzzo Private Wealth, Inc.27$6910.00%−4−12.9%Reduced
HFM Investment Advisors, LLC27$6910.00%+13+92.9%Added
Kilter Group LLC17$4350.00%+7+70.0%Added
FWL Investment Management, LLC17$4350.00%+17New