MAGNOLIA OIL & GAS CORP - A (MGY) Institutional Ownership Changes & 13F Activity

MAGNOLIA OIL & GAS CORP - A (MGY). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Price T Rowe Associates Inc, Westwood Holdings Group Inc, Fred Alger Management, Llc, Voloridge Investment Management, Llc, and Invesco Ltd..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+322,820+21.0%1,857,192$47.51MQ2 2026Sep 09, 2026
Anchor Capital Advisors LlcSell-1,068-1.0%107,403$2.75MQ2 2026Sep 03, 2026
Brown, Lisle/Cummings, Inc.Buy+2828$716.00Q2 2026Sep 02, 2026
Corient Private Wealth LlcSell-102,104-81.8%22,789$582.95KQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+1,712+0.8%213,180$5.45MQ2 2026Aug 24, 2026
Kingsview Wealth Management, LlcBuy+112,327112,327$2.87MQ2 2026Aug 19, 2026
Mercer Global Advisors IncBuy+8,671+45.6%27,686$708.21KQ2 2026Aug 19, 2026
Fulcrum Asset Management LlpBuy+36,39236,392$936.37KQ2 2026Aug 18, 2026
Empowered Funds, LlcBuy+73,175+93.0%151,858$3.88MQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioBuy+51,823+75.7%120,293$3.08MQ2 2026Aug 17, 2026
Caitlin John, LlcSell-5,719-81.1%1,330$34.02KQ2 2026Aug 17, 2026
Price T Rowe Associates IncBuy+1,468,803+601.2%1,713,122$43.82MQ2 2026Aug 14, 2026
Westwood Holdings Group IncBuy+1,051,870+66.1%2,642,440$67.59MQ2 2026Aug 14, 2026
Fred Alger Management, LlcSell-1,024,241-85.7%171,139$4.38MQ2 2026Aug 14, 2026
Voloridge Investment Management, LlcSell-828,817-84.2%155,059$3.97MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+742,620742,620$19.00MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-725,180-23.2%2,406,168$61.55MQ2 2026Aug 14, 2026
Nomura Asset Management International Inc.Sell-660,288-13.3%4,311,973$110.30MQ2 2026Aug 14, 2026
Sir Capital Management, L.P.Sell-623,427-73.3%227,667$5.82MQ2 2026Aug 14, 2026
Hrt Financial LpBuy+514,263+188.1%787,701$20.15MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+375,985+9.7%4,253,346$108.80MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+353,570353,570$9.04MQ2 2026Aug 14, 2026
Millennium Management LlcSell-337,589-56.4%261,428$6.69MQ2 2026Aug 14, 2026
Alliancebernstein L.P.Sell-328,808-7.4%4,122,434$130.15MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Sell-307,028-44.3%385,561$9.86MQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-277,125-16.4%1,416,670$36.24MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-269,421-97.0%8,349$213.57KQ2 2026Aug 14, 2026
Aventail Capital Group, LpBuy+187,617187,617$4.80MQ2 2026Aug 14, 2026
Sei Investments CoSell-181,750-39.9%273,602$7.00MQ2 2026Aug 14, 2026
Trexquant Investment LpBuy+164,086+63.4%422,732$10.81MQ2 2026Aug 14, 2026
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Frequently asked questions about MGY activity

  • Which institutional owners are buying MGY?

    Institutional owners buying MGY include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MGY activity?

    "Buy" means an investor increased their reported position in MGY compared to the prior reporting period. This reflects growing exposure to MAGNOLIA OIL & GAS CORP - A (MGY) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MGY increasing?

    Institutional interest in MGY can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.