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MGY

Magnolia Oil & Gas Corp
$26.70 +0.91 (+3.53%) At close · Jul 13
Market Cap
$4.94B
Shares
184,947,909

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 407
Total Value: $6,023,520,722
Total Shares: 190,835,140
Showing 1–100 of 414 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Superinvestors Holding MGY

All superinvestors →
Joel Greenblatt $1,572,754

Holder Concentration

Across 404 13F filers
Top Holder
15.4%
Jun 2023 → Mar 2026 · range 9.1% – 15.4%
of institutional value
Top 5
33.4%
Jun 2023 → Mar 2026 · range 32.7% – 38.5%
of institutional value
Top 10
47.8%
Jun 2023 → Mar 2026 · range 47.4% – 53.4%
of institutional value
HHI
420
Jun 2023 → Mar 2026 · range 367 – 445
Broadly held
Showing 100 of 414
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $931,035,567 15.46% 29,491,149
Mega AMERICAN CENTURY COMPANIES INC $331,776,706 5.51% 10,509,240
Mega STATE STREET CORP $299,797,401 4.98% 9,496,275
Mega VANGUARD CAPITAL MANAGEMENT LLC $226,938,545 3.77% 7,188,424
Mega DIMENSIONAL FUND ADVISORS LP $221,898,614 3.68% 7,028,781
Mega JANUS HENDERSON GROUP PLC $198,248,107 3.29% 6,279,636
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $197,748,418 3.28% 6,263,808
Mega T. Rowe Price Investment Management, Inc. $163,971,012 2.72% 5,193,887
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $156,974,279 2.61% 4,972,261
Mega TD Asset Management Inc $156,018,277 2.59% 4,941,979
Mega GEODE CAPITAL MANAGEMENT, LLC $143,268,194 2.38% 4,538,112
Mega ALLIANCEBERNSTEIN L.P. $140,525,709 2.33% 4,451,242
Large Epoch Investment Partners, Inc. $134,977,817 2.24% 4,275,509
Mega BANK OF AMERICA CORP /DE/ Bank $122,408,285 2.03% 3,877,361
Large Boston Trust Walden Corp $101,904,992 1.69% 3,227,906
Mega GOLDMAN SACHS GROUP INC $98,856,654 1.64% 3,131,348
Mega VICTORY CAPITAL MANAGEMENT INC $97,584,543 1.62% 3,091,053
Large GW&K Investment Management, LLC $97,275,504 1.61% 3,081,264
Mega MORGAN STANLEY $95,593,165 1.59% 3,027,975
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP $88,815,186 1.47% 2,813,278
Large Allspring Global Investments Holdings, LLC $85,207,556 1.41% 2,699,004
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $84,186,077 1.40% 2,666,648
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $82,507,500 1.37% 2,613,478
Mega Nuveen, LLC $71,129,356 1.18% 2,253,068
Large LOOMIS SAYLES & CO L P $68,811,360 1.14% 2,179,644
Mid Stephens Investment Management Group LLC $68,573,828 1.14% 2,172,120
Mega NORTHERN TRUST CORP Bank $67,310,395 1.12% 2,132,100
Mega Bank of New York Mellon Corp Bank $61,359,005 1.02% 1,943,586
Large RENAISSANCE TECHNOLOGIES LLC $53,725,889 0.89% 1,701,802
Mega TWO SIGMA INVESTMENTS, LP $53,473,108 0.89% 1,693,795
Large WESTWOOD HOLDINGS GROUP INC $50,214,294 0.83% 1,590,570
Mega PRINCIPAL FINANCIAL GROUP INC $48,752,729 0.81% 1,544,274
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $48,440,124 0.80% 1,534,372
Large BESSEMER GROUP INC $39,602,698 0.66% 1,254,441
Mega JPMORGAN CHASE & CO $37,899,182 0.63% 1,200,481
Large FRED ALGER MANAGEMENT, LLC $37,738,146 0.63% 1,195,380
Mega VANGUARD FIDUCIARY TRUST CO Bank $37,313,340 0.62% 1,181,924
Mega UBS Group AG $36,943,497 0.61% 1,170,209
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $31,060,965 0.52% 983,876
Mega FIRST TRUST ADVISORS LP $30,823,558 0.51% 976,356
Mid SIR Capital Management, L.P. $26,869,037 0.45% 851,094
Large Public Sector Pension Investment Board Pension $25,311,468 0.42% 801,757
Large Aberdeen Group plc $24,248,032 0.40% 768,072
Mega Invesco Ltd. $22,248,133 0.37% 704,724
Large Point72 Asset Management, L.P. $21,865,034 0.36% 692,589
Mid HEARTLAND ADVISORS INC $19,904,095 0.33% 630,475
Mega MILLENNIUM MANAGEMENT LLC $18,910,966 0.31% 599,017
Mega RHUMBLINE ADVISERS $18,224,382 0.30% 577,269
Mid ALGERT GLOBAL LLC $16,530,683 0.27% 523,620
Mega AQR CAPITAL MANAGEMENT LLC $15,718,226 0.26% 497,885
Mid GILDER GAGNON HOWE & CO LLC $15,359,625 0.25% 486,526
Large SEI INVESTMENTS CO $14,375,461 0.24% 455,352
Large Squarepoint Ops LLC $14,359,709 0.24% 454,853
Mid OBERWEIS ASSET MANAGEMENT INC/ $14,347,491 0.24% 454,466
Large Creative Planning $13,593,378 0.23% 430,579
Mid Foster Victor Wealth Advisors, LLC $13,394,267 0.22% 424,272
Mega ENVESTNET ASSET MANAGEMENT INC $13,325,255 0.22% 422,086
Mega NEUBERGER BERMAN GROUP LLC $13,204,057 0.22% 418,247
Mega California Public Employees Retirement System Pension $13,069,885 0.22% 413,997
Small Corigliano Investment Advisers, LLC $12,564,860 0.21% 398,000
Large STATE OF WISCONSIN INVESTMENT BOARD $12,202,783 0.20% 386,531
Mega Legal & General Group Plc $12,184,851 0.20% 385,963
Large BARROW HANLEY MEWHINNEY & STRAUSS LLC $12,056,551 0.20% 381,899
Mega CITADEL ADVISORS LLC $11,496,910 0.19% 364,172
Mega NORDEA INVESTMENT MANAGEMENT AB $11,454,479 0.19% 362,828
Mid Edgestream Partners, L.P. $11,144,146 0.19% 352,998
Mega Swiss National Bank Bank $10,995,831 0.18% 348,300
Large DIAMOND HILL CAPITAL MANAGEMENT INC $10,260,912 0.17% 325,021
Mega AMERIPRISE FINANCIAL INC $9,530,256 0.16% 301,877
Mega RAYMOND JAMES FINANCIAL INC $8,952,809 0.15% 283,586
Mega JANE STREET GROUP, LLC $8,769,198 0.15% 277,770
Large Universal- Beteiligungs- und Servicegesellschaft mbH $8,691,441 0.14% 275,307
Large HRT FINANCIAL LP $8,632,437 0.14% 273,438
Large Trexquant Investment LP $8,165,454 0.14% 258,646
Mega BNP PARIBAS ARBITRAGE, SA $7,938,150 0.13% 251,446
Large Connor, Clark & Lunn Investment Management Ltd. $7,871,000 0.13% 249,319
Mega PRICE T ROWE ASSOCIATES INC /MD/ $7,713,150 0.13% 244,319
Large Rafferty Asset Management, LLC $7,576,137 0.13% 239,979
Mid Campbell & CO Investment Adviser LLC $7,495,980 0.12% 237,440
Large PRUDENTIAL FINANCIAL INC $7,407,584 0.12% 234,640
Large KING LUTHER CAPITAL MANAGEMENT CORP $7,332,385 0.12% 232,258
Mega FRANKLIN RESOURCES INC $7,113,540 0.12% 225,326
Mega DEUTSCHE BANK AG\ Bank $6,951,744 0.12% 220,201
Large Russell Investments Group, Ltd. $6,917,079 0.11% 219,103
Large Clark Capital Management Group, Inc. $6,754,054 0.11% 213,939
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $6,676,044 0.11% 211,468
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $6,529,084 0.11% 206,813
Large Man Group plc $6,450,413 0.11% 204,321
Mid Emerald Investment Advisers, LLC $6,425,252 0.11% 203,524
Small Phocas Financial Corp. $6,294,963 0.10% 199,397
Small Moody Aldrich Partners LLC $6,081,234 0.10% 192,627
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,065,859 0.10% 192,140
Large GREAT LAKES ADVISORS, LLC $5,889,888 0.10% 186,566
Mega BARCLAYS PLC $5,884,520 0.10% 186,396
Mega WELLS FARGO & COMPANY/MN $5,297,918 0.09% 167,815
Large CANADA LIFE ASSURANCE Co Insurance $4,735,784 0.08% 150,009
Mid SEVEN GRAND MANAGERS, LLC $4,735,500 0.08% 150,000
Mega VANGUARD ASSET MANAGEMENT, Ltd $4,542,102 0.08% 143,874
Large Pathstone Holdings, LLC $4,499,829 0.07% 142,535
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $4,480,130 0.07% 141,911
Key facts CIK 1698990 CUSIP 559663109 13F (30d) 22 filings 21 filers Visit website Investor relations

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