Company · Ownership research

Magnolia Oil & Gas Corp MGY

CIK 0001698990 · CUSIP 559663109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 559663109 (MGY), not CUSIP 559663909 (MGY), CUSIP 559663959 (MGY), and does not merge CUSIPs.

This page lists the top 20 of 383 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$666.27M 28,497,641 shares	0.01%	-653.54K(-2.20%)Reduced	SEC filing ↗ Feb 7, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$489.54M 20,938,200 shares	0.01%	+452.84K(+2.20%)Added	SEC filing ↗ Feb 11, 2025	▾
03	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$360.30M 15,410,496 shares	0.32%	+3.04M(+24.60%)Added	SEC filing ↗ Feb 13, 2025	▾
04	STATE STREET CORP CIK 93751 · View history	$234.54M 10,031,610 shares	0.01%	-668.65K(-6.20%)Reduced	SEC filing ↗ Feb 14, 2025	▾
05	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$232.40M 9,940,130 shares	0.13%	-602.53K(-5.70%)Reduced	SEC filing ↗ Feb 11, 2025	▾
06	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$185.90M 7,950,997 shares	0.11%	-1.32M(-14.20%)Reduced	SEC filing ↗ Feb 14, 2025	▾
07	JANUS HENDERSON GROUP PLC CIK 1274173 · View history	$149.56M 6,396,875 shares	0.08%	+667.97K(+11.70%)Added	SEC filing ↗ Feb 14, 2025	▾
08	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$129.44M 5,536,416 shares	0.04%	-157.00K(-2.80%)Reduced	SEC filing ↗ Feb 12, 2025	▾
09	MACQUARIE GROUP LTD CIK 1418333 · View history	$129.04M 5,519,236 shares	0.15%	-569.25K(-9.30%)Reduced	SEC filing ↗ Feb 14, 2025	▾
10	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · Amended · View history	$117.38M 5,020,646 shares	0.02%	+26.94K(+0.50%)Added	SEC filing ↗ Feb 12, 2025	▾
11	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$111.47M 4,768,047 shares	0.03%	+86.17K(+1.80%)Added	SEC filing ↗ Feb 13, 2025	▾
12	VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history	$109.25M 4,672,600 shares	0.11%	-653.09K(-12.30%)Reduced	SEC filing ↗ Feb 6, 2025	▾
13	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$96.73M 4,136,456 shares	0.01%	+28.69K(+0.70%)Added	SEC filing ↗ Feb 12, 2025	▾
14	SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history	$89.39M 3,823,217 shares	0.60%	-227.69K(-5.60%)Reduced	SEC filing ↗ Feb 14, 2025	▾
15	GW&K Investment Management, LLC CIK 1082917 · View history	$81.46M 3,484,155 shares	0.69%	-42.36K(-1.20%)Reduced	SEC filing ↗ Feb 5, 2025	▾
16	TD Asset Management Inc CIK 1056053 · View history	$72.83M 3,115,210 shares	0.06%	-259.15K(-7.70%)Reduced	SEC filing ↗ Feb 11, 2025	▾
17	Allspring Global Investments Holdings, LLC CIK 1890906 · View history	$72.32M 3,064,426 shares	0.12%	+2.58K(+0.10%)Added	SEC filing ↗ Jan 29, 2025	▾
18	Boston Trust Walden Corp CIK 1534866 · View history	$72.26M 3,090,587 shares	0.51%	+267.46K(+9.50%)Added	SEC filing ↗ Jan 24, 2025	▾
19	SYSTEMATIC FINANCIAL MANAGEMENT LP CIK 1085936 · View history	$70.92M 3,033,275 shares	1.80%	+113.26K(+3.90%)Added	SEC filing ↗ Feb 14, 2025	▾
20	MORGAN STANLEY CIK 895421 · Amended · View history	$66.09M 2,826,585 shares	0.00%	+79.35K(+2.90%)Added	SEC filing ↗ May 15, 2025	▾

Showing 20 / 383 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

383

Cancelled or null records excluded

Disclosed shares

220,197,209

Not deduplicated across managers

Disclosed value

$5.15B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Magnolia Oil & Gas Corp · Q4 2024

Explore all 383 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.