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..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +322,820 | +21.0% | 1,857,192 | $47.51M | Q2 2026 | Sep 09, 2026 |
| Anchor Capital Advisors Llc | Sell | -1,068 | -1.0% | 107,403 | $2.75M | Q2 2026 | Sep 03, 2026 |
| Brown, Lisle/Cummings, Inc. | Buy | +28 | — | 28 | $716.00 | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Sell | -102,104 | -81.8% | 22,789 | $582.95K | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Buy | +1,712 | +0.8% | 213,180 | $5.45M | Q2 2026 | Aug 24, 2026 |
| Kingsview Wealth Management, Llc | Buy | +112,327 | — | 112,327 | $2.87M | Q2 2026 | Aug 19, 2026 |
| Mercer Global Advisors Inc | Buy | +8,671 | +45.6% | 27,686 | $708.21K | Q2 2026 | Aug 19, 2026 |
| Fulcrum Asset Management Llp | Buy | +36,392 | — | 36,392 | $936.37K | Q2 2026 | Aug 18, 2026 |
| Empowered Funds, Llc | Buy | +73,175 | +93.0% | 151,858 | $3.88M | Q2 2026 | Aug 17, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +51,823 | +75.7% | 120,293 | $3.08M | Q2 2026 | Aug 17, 2026 |
| Caitlin John, Llc | Sell | -5,719 | -81.1% | 1,330 | $34.02K | Q2 2026 | Aug 17, 2026 |
| Price T Rowe Associates Inc | Buy | +1,468,803 | +601.2% | 1,713,122 | $43.82M | Q2 2026 | Aug 14, 2026 |
| Westwood Holdings Group Inc | Buy | +1,051,870 | +66.1% | 2,642,440 | $67.59M | Q2 2026 | Aug 14, 2026 |
| Fred Alger Management, Llc | Sell | -1,024,241 | -85.7% | 171,139 | $4.38M | Q2 2026 | Aug 14, 2026 |
| Voloridge Investment Management, Llc | Sell | -828,817 | -84.2% | 155,059 | $3.97M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +742,620 | — | 742,620 | $19.00M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -725,180 | -23.2% | 2,406,168 | $61.55M | Q2 2026 | Aug 14, 2026 |
| Nomura Asset Management International Inc. | Sell | -660,288 | -13.3% | 4,311,973 | $110.30M | Q2 2026 | Aug 14, 2026 |
| Sir Capital Management, L.P. | Sell | -623,427 | -73.3% | 227,667 | $5.82M | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Buy | +514,263 | +188.1% | 787,701 | $20.15M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +375,985 | +9.7% | 4,253,346 | $108.80M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +353,570 | — | 353,570 | $9.04M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -337,589 | -56.4% | 261,428 | $6.69M | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Sell | -328,808 | -7.4% | 4,122,434 | $130.15M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Sell | -307,028 | -44.3% | 385,561 | $9.86M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Sell | -277,125 | -16.4% | 1,416,670 | $36.24M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -269,421 | -97.0% | 8,349 | $213.57K | Q2 2026 | Aug 14, 2026 |
| Aventail Capital Group, Lp | Buy | +187,617 | — | 187,617 | $4.80M | Q2 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -181,750 | -39.9% | 273,602 | $7.00M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +164,086 | +63.4% | 422,732 | $10.81M | Q2 2026 | Aug 14, 2026 |
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.
Related MGY Institutional Insights
- MGY Overview
- MGY 13F Institutional Holders
- MGY Top Institutional Shareholders
- Energy Sector Institutional Ownership
- Energy Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Energy Stocks By Institutional Investors
- Most Sold Energy Stocks By Institutional Investors
- MGY Insider Trading & SEC Form 4 Activity
- MGY Articles
- Top Institutional Investor Stock Rankings