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SEI INVESTMENTS CO

Position in MGY — Magnolia Oil & Gas Corp

CIK 350894 OAKS, PA

Position in MGY

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$14,375,461
+$9,214,917 QoQ
Shares Held
455,352
+93.2% QoQ
Ownership
0.246%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MGY Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas E&P

Energy · as of Mar 31, 2026

SEI INVESTMENTS CO holds $931,392,568 across 38 Oil & Gas E&P names. MGY ranks #18 (1.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MGY

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $14,375,461 455,352
2025-12-31 $5,160,544 235,749
2025-09-30 $4,553,201 190,750
2025-06-30 $4,021,941 178,912
2025-03-31 $20,093,647 795,473
2024-12-31 $18,715,829 800,506
2024-09-30 $20,931,847 857,160
2024-06-30 $20,595,895 812,782
2024-03-31 $19,069,305 734,848
2023-12-31 $18,216,276 855,626
2023-09-30 $18,749,474 818,397
2023-06-30 $16,110,409 770,833
2023-03-31 $14,297,375 653,445
2022-12-31 $11,851,629 505,400
2022-09-30 $9,351,944 472,082
2022-06-30 $10,531,752 501,751
2022-03-31 $9,325,714 394,322
2021-12-31 $7,218,963 382,563
2021-09-30 $3,904,281 219,465
2021-06-30 $5,033,578 322,046
2021-03-31 $2,384,889 207,743
2020-12-31 $1,475,603 209,009
2020-09-30 $2,060,683 398,585
2020-06-30 $1,592,404 262,773
2020-03-31 $1,120,996 280,249