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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, 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.

Institutional holdersQ1 2026: 406 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 heldQ1 2026: $6.39B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Magnolia Oil & Gas Corp; share changes are against Q4 2025.

Institutions holding MGY in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Hughes Financial Services, LLC2$630.00%00.0%Unchanged
Dunhill Financial, LLC3$1260.00%−1−25.0%Reduced
Raffa Wealth Management, LLC6$1890.00%+6New
Vermillion Wealth Management, Inc.6$1890.00%+6New
Curio Wealth, LLC7$2210.00%+7New
Kilter Group LLC10$3160.00%−22−68.8%Reduced
Advisory Services Network, LLC13$4100.00%+13New
HFM Investment Advisors, LLC14$4420.00%00.0%Unchanged
Optiver Holding B.V.16$5050.00%−263−94.3%Reduced
Spire Wealth Management16$5050.00%+16New
Albion Financial Group19$6000.00%+19New
Rialto Wealth Management, LLC24$7580.00%+5+26.3%Added
WPG Advisers, LLC31$9790.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.31$9790.00%+5+19.2%Added
TopTier Wealth Management, LLC32$1.01K0.00%+32New
UMA Financial Services, Inc.35$1.10K0.00%+35New
Bay Harbor Wealth Management, LLC36$1.14K0.00%+21+140.0%Added
Central Trust Co36$1.14K0.00%−17−32.1%Reduced
Gilpin Wealth Management, LLC37$1.17K0.00%+18+94.7%Added
Prestige Wealth Management Group LLC38$1.20K0.00%+20+111.1%Added
Glen Eagle Advisors, LLC42$1.32K0.00%00.0%Unchanged
SJS Investment Consulting Inc.42$1.33K0.00%−277−86.8%Reduced
Parkside Financial Bank & Trust44$1.39K0.00%−132−75.0%Reduced
Ankerstar Wealth, LLC46$1.45K0.00%00.0%Unchanged
Golden State Equity Partners47$1.48K0.00%+47New
Picton Mahoney Asset Management48$1.51K0.00%00.0%Unchanged
Larson Financial Group LLC48$1.51K0.00%00.0%Unchanged
Westfuller Advisors, LLC53$1.66K0.00%−19−26.4%Reduced
Cornerstone Planning Group LLC68$2.07K0.00%+23+51.1%Added
SBI Securities Co., Ltd.71$2.24K0.00%−4−5.3%Reduced
Steward Partners Investment Advisory, LLC71$2.24K0.00%00.0%Unchanged
Bayforest Capital Ltd78$2.46K0.00%−330−80.9%Reduced
Annis Gardner Whiting Capital Advisors, LLC80$2.53K0.00%00.0%Unchanged
Legacy Wealth Managment, LLC90$2.84K0.00%+43+91.5%Added
Torren Management, LLC94$2.97K0.00%−1,630−94.5%Reduced
Rossby Financial, LCC100$3.02K0.00%+100New
JFS Wealth Advisors, LLC99$3.13K0.00%−36−26.7%Reduced
Farmers & Merchants Investments Inc100$3.16K0.00%00.0%Unchanged
Quarry LP120$3.79K0.00%−5,355−97.8%Reduced
Sunrise Financial Services, LLC123$3.88K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.145$4.58K0.00%+17+13.3%Added
S&T Bank161$5.08K0.00%+161New
Fortitude Family Office, LLC165$5.21K0.00%+89+117.1%Added
Twin Peaks Wealth Advisors, LLC175$5.53K0.00%+175New
Basepoint Wealth LLC216$6.82K0.00%+2+0.9%Added
LRI Investments, LLC250$7.89K0.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.260$8.21K0.00%+128+97.0%Added
Wall Street Access Asset Management, LLC373$8.38K0.00%−134−26.4%Reduced
CVA Family Office, LLC279$8.81K0.00%+279New
Bare Financial Services, Inc311$9.82K0.00%+34+12.3%Added
Northwestern Mutual Wealth Management Co315$9.95K0.00%−40−11.3%Reduced
Truvestments Capital LLC327$10.3K0.00%00.0%Unchanged
Park Place Capital Corp339$10.7K0.00%00.0%Unchanged
Private Wealth Management Group, LLC341$10.8K0.00%00.0%Unchanged
Whittier Trust Co of Nevada Inc354$11.0K0.00%+95+36.7%Added
Bryn Mawr Trust Co350$11.1K0.00%00.0%Unchanged
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.354$11.2K0.00%−836−70.3%Reduced
Bogart Wealth, LLC364$11.5K0.00%00.0%Unchanged
GWM Advisors LLC393$12.4K0.00%−96−19.6%Reduced
Massmutual Trust Co FSB401$12.7K0.00%+22+5.8%Added
Essential Partners LLC424$13.4K0.00%+107+33.8%Added
TD Private Client Wealth LLC445$14.0K0.00%−155−25.8%Reduced
Richardson Financial Services Inc.511$16.1K0.01%+511New
Key Financial Inc560$17.7K0.00%00.0%Unchanged
Center for Financial Planning, Inc.566$17.9K0.00%00.0%Unchanged
Rothschild Investment LLC587$18.5K0.00%+432+278.7%Added
Basecamp Wealth Advisors LLC608$19.2K0.00%−36−5.6%Reduced
Brown Brothers Harriman & Co674$21.3K0.00%−42−5.9%Reduced
Root Financial Partners, LLC677$21.4K0.00%+165+32.2%Added
Ronald Blue Trust, Inc.718$22.7K0.00%00.0%Unchanged
Y.D. More Investments Ltd750$23.7K0.00%00.0%Unchanged
V-Square Quantitative Management LLC775$24.5K0.00%+775New
Valued Wealth Advisors LLC906$28.6K0.01%+906New
Huntington National Bank915$28.9K0.00%−59−6.1%Reduced
Wellington-Altus USA Inc.1,163$29.8K0.02%+165+16.5%Added
Nomura Asset Management Co Ltd950$30.0K0.00%00.0%Unchanged
Financial Management Professionals, Inc.972$30.7K0.00%00.0%Unchanged
Group One Trading, L.P.984$31.1K0.00%+984New
Umb Bank N A1,084$34.2K0.00%+19+1.8%Added
Mather Group, LLC.1,090$34.4K0.00%+1,090New
MAI Capital Management1,120$35.4K0.00%+878+362.8%Added
Versant Capital Management, Inc1,146$36.2K0.00%−1,615−58.5%Reduced
Opal Wealth Advisors, LLC1,310$41.4K0.01%+1,310New
Ares Financial Consulting, LLC1,485$44.8K0.04%+1,095+280.8%Added
First Horizon Corp1,461$46.1K0.00%−428−22.7%Reduced
EverSource Wealth Advisors, LLC1,486$46.9K0.00%+140+10.4%Added
Employees Retirement System of Texas1,559$49.0K0.00%+1,559New
Salomon & Ludwin, LLC1,794$55.7K0.00%+450+33.5%Added
Ancora Advisors, LLC2,000$63.1K0.00%00.0%Unchanged
Geneos Wealth Management Inc.2,000$63.1K0.00%00.0%Unchanged
Covestor Ltd2,148$68.0K0.05%−2,058−48.9%Reduced
Assetmark, Inc2,274$71.8K0.00%+167+7.9%Added
Arlington Trust Co LLC2,288$72.2K0.01%00.0%Unchanged
Parallel Advisors, LLC2,572$81.2K0.00%+803+45.4%Added
Nisa Investment Advisors, LLC2,898$91.5K0.00%+985+51.5%Added
Independence Bank of Kentucky2,900$91.6K0.01%00.0%Unchanged
Caitong International Asset Management Co., Ltd2,921$92.2K0.02%+2,921New
Smartleaf Asset Management LLC2,910$93.5K0.00%−1,714−37.1%Reduced
Kemnay Advisory Services Inc.3,340$105.4K0.02%+2,895+650.6%Added
Exchange Traded Concepts, LLC3,457$109.1K0.00%+985+39.8%Added