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Magnolia Oil & Gas (MGY) Institutional Ownership

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$26.25 +0.39 (+1.49%)
Closing price 08/14/2026 03:59 PM Eastern
Extended Trading
$26.14 -0.11 (-0.40%)
As of 08/14/2026 07:50 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Magnolia Oil & Gas (NYSE:MGY)

Current
Institutional Ownership
Percentage
94.73%
Number of
Institutional Buyers
(last 12 months)
201
Total
Institutional Inflows
(last 12 months)
$718.04M
Number of
Institutional Sellers
(last 12 months)
161
Total
Institutional Outflows
(last 12 months)
$685.98M
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MGY Institutional Buying and Selling by Quarter

Magnolia Oil & Gas Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/14/2026Ancora Advisors LLC2,000$51K0.0%N/A0.001%
8/13/2026 Globeflex Capital L P4,725$121K0.0%N/A0.003%
8/10/2026 Great Lakes Advisors LLC182,784$4.68M0.0%N/A0.099%
8/7/2026 Diamond Hill Capital Management LLC Investment Advisor 468,704$11.99M0.1%N/A0.253%
7/10/2026 Wedge Capital Management L L P NC82,159$2.10M0.0%-4.4%0.044%
7/10/2026 Fulton Bank N.A.14,292$366K0.0%+25.7%0.008%
7/9/2026 Revolve Wealth Partners LLC8,213$210K0.0%N/A0.004%
7/9/2026 Oliver Luxxe Assets LLC60,651$1.55M0.2%-38.4%0.033%
7/7/2026 GAMMA Investing LLC7,572$194K0.0%+10.1%0.004%
7/7/2026 Harbor Investment Advisory LLC1,529$39K0.0%N/A0.001%
7/7/2026 Central Pacific Bank Trust Division5,820$149K0.0%N/A0.003%
7/2/2026 Versant Capital Management Inc2,257$58K0.0%+96.9%0.001%
6/18/2026 Pacer Advisors Inc.9,603$303K0.0%-98.4%0.005%
6/3/2026 Parallel Advisors LLC2,572$81K0.0%+45.4%0.001%
5/26/2026 Glenmede Trust Co. NA34,261$1.08M0.0%+3.2%0.019%
5/23/2026Ritter Alpha LP8,450$267K5.6%N/A0.005%
5/22/2026 Segall Bryant & Hamill LLC108,247$3.42M0.0%-2.5%0.059%
5/21/2026 Argent Capital Management LLC63,895$2.02M0.1%+49.7%0.035%
5/19/2026Bank of America Corp DE3,877,361$122.41M0.0%+20.5%2.096%
5/19/2026 Edgestream Partners L.P.352,998$11.14M0.4%+45.7%0.191%
5/19/2026Janus Henderson Group PLC6,279,636$198.25M0.1%+2.8%3.395%
5/18/2026California State Teachers Retirement System211,468$6.68M0.0%+26.3%0.114%
5/18/2026Royal Bank of Canada100,559$3.18M0.0%-36.8%0.054%
5/18/2026Empowered Funds LLC78,683$2.48M0.0%-46.2%0.043%
5/16/2026The Manufacturers Life Insurance Company1,534,372$48.44M0.0%-22.9%0.830%
5/16/2026 Quantinno Capital Management LP135,229$4.27M0.0%+355.4%0.073%
5/15/2026 OMERS ADMINISTRATION Corp24,200$764K0.0%N/A0.013%
5/15/2026 Epoch Investment Partners Inc.4,275,509$134.98M0.8%-19.8%2.294%
5/15/2026 Entropy Technologies LP81,810$2.58M0.1%+51.3%0.044%
5/14/2026 Renaissance Technologies LLC1,701,802$53.73M0.1%+43.7%0.913%
5/14/2026 Arrowstreet Capital Limited Partnership6,263,808$197.75M0.1%+790.8%3.360%
5/14/2026Systematic Financial Management LP2,813,278$88.82M2.0%-4.3%1.509%
5/14/2026Sei Investments Co.455,352$14.38M0.0%+93.2%0.244%
5/14/2026 Lido Advisors LLC15,730$497K0.0%-2.9%0.008%
5/14/2026 State of Wyoming10,877$343K0.0%+25.2%0.006%
5/13/2026 Cetera Investment Advisers17,549$554K0.0%+5.2%0.009%
5/13/2026 First Trust Advisors LP976,356$30.82M0.0%+11.6%0.524%
5/8/2026 PNC Financial Services Group Inc.41,283$1.30M0.0%-3.5%0.022%
5/7/2026 Dimensional Fund Advisors LP7,028,781$221.91M0.0%+5.9%3.771%
5/7/2026 Parallel Advisors LLC2,572$81K0.0%+45.4%0.001%
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5/7/2026 KBC Group NV6,583$208K0.0%+29.0%0.004%
5/7/2026 Swiss National Bank348,300$11.00M0.0%+0.4%0.187%
5/7/2026 Heartland Advisors Inc.630,475$19.90M1.0%-3.2%0.338%
5/6/2026California Public Employees Retirement System413,997$13.07M0.0%+8.6%0.222%
5/6/2026 Gallacher Capital Management LLC35,383$1.12M0.4%+27.7%0.019%
5/6/2026 Bessemer Group Inc.1,254,441$39.60M0.1%+12.3%0.673%
5/6/2026 Allspring Global Investments Holdings LLC2,699,004$81.43M0.1%-7.9%1.448%
5/5/2026 Bank of New York Mellon Corp1,943,586$61.36M0.0%-1.1%1.043%
5/5/2026 Illinois Municipal Retirement Fund88,583$2.80M0.0%-67.3%0.048%
5/5/2026 IMC Chicago LLC16,958$535K0.0%N/A0.009%
5/5/2026 Sanctuary Advisors LLC12,744$402K0.0%+7.3%0.007%
5/5/2026 Maryland State Retirement & Pension System26,363$832K0.0%-1.9%0.014%
5/4/2026 AMG National Trust Bank8,320$263K0.0%N/A0.004%
5/4/2026 Bleakley Financial Group LLC11,857$374K0.0%N/A0.006%
5/4/2026 Principal Financial Group Inc.1,544,274$48.75M0.0%-2.4%0.828%
5/4/2026 Teachers Retirement System of The State of Kentucky46,062$1.45M0.0%-1.3%0.025%
5/1/2026 Commonwealth of Pennsylvania Public School Empls Retrmt SYS44,731$1.41M0.0%-1.3%0.024%
5/1/2026 Fifth Third Bancorp72,696$2.30M0.0%+8,323.6%0.039%
5/1/2026 Sequoia Financial Advisors LLC23,866$753K0.0%+104.1%0.013%
4/30/2026Hsbc Holdings PLC132,456$4.20M0.0%+153.3%0.071%
4/30/2026 First Horizon Corp1,461$46K0.0%-22.7%0.001%
4/30/2026 Valued Wealth Advisors LLC906$29K0.0%N/A0.000%
4/30/2026 Oregon Public Employees Retirement Fund41,353$1.31M0.0%-1.2%0.022%
4/28/2026DGS Capital Management LLC6,376$201K0.0%N/A0.003%
4/28/2026 Stephens Investment Management Group LLC2,172,120$68.57M0.9%+0.8%1.165%
4/28/2026 AdvisorShares Investments LLC15,360$485K0.1%N/A0.008%
4/27/2026 HB Wealth Management LLC12,311$389K0.0%+14.1%0.007%
4/27/2026 New York State Teachers Retirement System57,500$1.82M0.0%-9.9%0.031%
4/27/2026 Y Intercept Hong Kong Ltd153,445$4.84M0.1%+481.9%0.082%
4/25/2026 Strs Ohio14,300$451K0.0%-84.4%0.008%
4/25/2026 Boston Trust Walden Corp3,227,906$101.91M0.8%-22.6%1.732%
4/25/2026 Keybank National Association OH17,682$558K0.0%-7.5%0.009%
4/24/2026 Stock Yards Bank & Trust Co.9,883$312K0.0%-21.4%0.005%
4/22/2026 Janney Montgomery Scott LLC7,363$232K0.0%N/A0.004%
4/22/2026 Pictet Asset Management Holding SA31,206$985K0.0%+7.7%0.017%
4/22/2026 Sterling Capital Management LLC37,994$1.20M0.0%-55.6%0.020%
4/21/2026 Louisiana State Employees Retirement System80,200$2.53M0.0%N/A0.043%
4/20/2026 Ritholtz Wealth Management15,994$505K0.0%+33.8%0.009%
4/20/2026 Oak Family Advisors LLC45,920$1.45M0.4%-3.6%0.025%
4/17/2026 Campbell Newman Asset Management Inc.96,831$3.06M0.2%+1.8%0.052%
4/16/2026 SG Americas Securities LLC43,348$1.37M0.0%-52.8%0.023%
4/16/2026 Evolve Private Wealth LLC24,455$772K0.0%+7.7%0.013%
3/20/2026Hsbc Holdings PLC52,288$1.14M0.0%N/A0.028%
3/17/2026 Rockefeller Capital Management L.P.7,869$172K0.0%+22.6%0.004%
2/24/2026 Pacer Advisors Inc.589,486$12.90M0.0%-5.9%0.316%
2/19/2026T. Rowe Price Investment Management Inc.3,989,190$87.32M0.1%-28.5%2.114%
2/19/2026Invesco Ltd.715,497$15.66M0.0%-5.6%0.379%
2/18/2026 Mercer Global Advisors Inc. ADV11,886$260K0.0%N/A0.006%
2/18/2026Caitlin John LLC15,041$329K0.2%N/A0.008%
2/18/2026State of Tennessee Department of Treasury48,121$1.05M0.0%-17.1%0.026%
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2/18/2026 Mackenzie Financial Corp11,665$257K0.0%-59.5%0.006%
2/18/2026Empowered Funds LLC146,186$3.20M0.0%+111.4%0.077%
2/18/2026XTX Topco Ltd219,040$4.80M0.1%+599.0%0.116%
2/18/2026Voloridge Investment Management LLC969,487$21.22M0.1%+116.4%0.514%
2/18/2026 Virtus Investment Advisers LLC7,459$163K0.0%N/A0.004%
2/18/2026Wellington Management Group LLP5,206,612$113.97M0.0%-0.4%2.760%
2/18/2026Susquehanna Portfolio Strategies LLC38,400$841K0.0%-7.2%0.020%
2/18/2026Tudor Investment Corp ET AL125,840$2.76M0.0%N/A0.067%
2/18/2026Twinbeech Capital LP164,266$3.60M0.3%+1,325.2%0.087%
2/18/2026Osterweis Capital Management Inc.325,647$7.13M0.3%-27.6%0.173%


MGY Institutional Ownership - Frequently Asked Questions

During the previous two years, 410 institutional investors and hedge funds held shares of Magnolia Oil & Gas. The most heavily invested institutionals were Vanguard Group Inc. ($430.03M), American Century Companies Inc. ($283.76M), Dimensional Fund Advisors LP ($221.91M), Janus Henderson Group PLC ($198.25M), Arrowstreet Capital Limited Partnership ($197.75M), State Street Corp ($192.65M), and Epoch Investment Partners Inc. ($134.98M).Learn more on Magnolia Oil & Gas' institutional investors.

94.73% of Magnolia Oil & Gas' stock is owned by institutional investors. Learn more on MGY's institutional investor holdings.

Of the 338 institutional investors that purchased Magnolia Oil & Gas' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Arrowstreet Capital Limited Partnership ($6.51M), First Trust Advisors LP ($3.14M), TD Asset Management Inc ($2.80M), Epoch Investment Partners Inc. ($2.72M), Encompass Capital Advisors LLC ($2.13M), American Century Companies Inc. ($1.95M), and Dimensional Fund Advisors LP ($1.63M).

Institutional investors have bought a total of 28,117,157 shares in the last 24 months. This purchase volume represents approximately $718.04M in transactions.

Of the 154 institutional investors that sold Magnolia Oil & Gas' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($5.62M), Woodline Partners LP ($1.67M), Balyasny Asset Management L.P. ($1.42M), First Trust Advisors LP ($1.22M), Millennium Management LLC ($1.08M), Epoch Investment Partners Inc. ($1.05M), and Bank of America Corp DE ($1.01M).

Institutional investors have sold a total of 28,612,290 shares in the last 24 months. This volume of shares sold represents approximately $685.98M in transactions.


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Institutional ownership data for NYSE:MGY is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/14/2026. New 13F filings are added each quarter as they're published.
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