MGYMagnolia Oil & Gas Corporation

$26.44

Who owns MGY

392 institutions reported holding MGY for 2026Q1, together 111% of the company, more than the 370 a quarter earlier.

392

Institutions reporting a position · as of 2026Q1 · up from 370 the quarter before

Shares held by institutions
202.6M

Shares held by institutions · 111% of the company · long US equity positions only, as reported on Form 13F

Reported value
$6.35B

Reported value · at 2026-03-31 prices, not today's

Opened vs closed
67 / 48

Opened vs closed · new positions against positions exited in the latest quarter

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
32
New positions
67
Positions exited
48
Added to
139
Reduced
125
Institutional ownership by quarter, 2018Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q1392202.6M$6.35B
2025Q4370198.5M$4.35B
2025Q3369204.6M$4.88B
2025Q2377213.6M$4.81B
2025Q1403215.3M$5.44B
2024Q4379219.8M$5.14B
2024Q3365222.1M$5.43B
2024Q2345220.6M$5.59B
2024Q1322222.4M$5.77B
2023Q4294196.2M$4.18B
2023Q3286191.9M$4.40B
2023Q2278198.8M$4.14B
2023Q1275199.5M$4.36B
2022Q4293193.3M$4.53B
2022Q3278191.8M$3.80B
2022Q2278195.8M$4.11B
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.29.5Mn/a$931M
VANGUARD GROUP INC21.6Mn/a$683M
AMERICAN CENTURY COMPANIES INC10.5Mn/a$332M
STATE STREET CORP9.5Mn/a$300M
DIMENSIONAL FUND ADVISORS LP7.0Mn/a$222M
HENDERSON GROUP PLC6.3Mn/a$198M
ARROWSTREET CAPITAL LIMITED PARTNERSHIP6.3Mn/a$198M
T. Rowe Price Investment Management, Inc.5.2Mn/a$164M
NOMURA HOLDINGS INC5.0Mn/a$157M
TD Asset Management Inc4.9Mn/a$156M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

reading the register…