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MGY in the 13F filings

Magnolia Oil & Gas Corp · CUSIP 559663109

Sector · EnergyTheme · Energy and power infrastructure· L3VLUP-definedTheme · Oil and gas
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
28
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 7 listed it in both
Shares listed
24,052,637
combined, among listed positions
Reported value
$640m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 12 buyers (opened or added shares) and 19 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -2,539,593.

Managers listing MGY in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

28 of 28 holders

ActionFiling
Janus Henderson Group Ltd6,427,893$164m0.07%Added+148,25714 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP5,463,526$140m0.06%Trimmed-800,28213 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP4,122,434$130munder 0.1%Trimmed-328,80814 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,713,122$44munder 0.1%Added+1,468,80314 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP1,416,670$36munder 0.1%Trimmed-277,12514 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC1,296,902$33munder 0.1%Trimmed-404,90013 Aug 2026 (the filing on sec.gov)
Invesco Ltd742,620$19munder 0.1%Added+37,89614 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC594,648$15munder 0.1%Added+96,76314 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC430,380$11munder 0.1%Trimmed-24,47314 Aug 2026 (the filing on sec.gov)
Point72 Asset Management LP385,561$9.9munder 0.1%Trimmed-307,02814 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP328,279$8.4munder 0.1%Newnew13 Aug 2026 (the filing on sec.gov)
Millennium Management LLC261,428$6.7munder 0.1%Trimmed-337,58914 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP177,870$4.5munder 0.1%Trimmed-14,27014 Aug 2026 (the filing on sec.gov)
Voloridge Investment Management LLC155,059$4.0munder 0.1%Trimmed-828,81714 Aug 2026 (the filing on sec.gov)
Man Group PLC89,554$2.3munder 0.1%Trimmed-114,76714 Aug 2026 (the filing on sec.gov)
Holocene Advisors LP66,693$1.7munder 0.1%Trimmed-2,19114 Aug 2026 (the filing on sec.gov)
Quantbot Technologies LP64,445$1.6m0.07%Added+33,67812 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC58,214$1.5munder 0.1%Trimmed-6,30414 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.47,342$1.2munder 0.1%Added+8,28414 Aug 2026 (the filing on sec.gov)
Bridgewater Associates LP42,881$1.1munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Freestone Grove Partners LP42,013$1.1munder 0.1%Added+31,47514 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP26,953$689kunder 0.1%Trimmed-101,15114 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)25,878$662kunder 0.1%Added+4,09313 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC25,618$655kunder 0.1%Trimmed-392,62927 Oct 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP20,862$534kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
11 in Q3 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

05101520192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MGY by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20181$2.1mn.a.n.a.
Q3 20188$322mn.a.n.a.
Q4 20189$528mn.a.n.a.
Q1 20197$545mn.a.n.a.
Q2 20193$185mn.a.n.a.
Q3 20194$419mn.a.n.a.
Q4 20195$472mn.a.n.a.
Q1 20202$8.5mn.a.n.a.
Q2 20202$13mn.a.n.a.
Q1 20214$118mn.a.n.a.
Q2 20214$442mn.a.n.a.
Q3 20217$506mn.a.n.a.
Q4 20215$618mn.a.n.a.
Q1 20227$1.0bnn.a.n.a.
Q2 20227$1.1bnn.a.n.a.
Q3 20228$727mn.a.n.a.
Q4 20228$871mn.a.n.a.
Q1 20239$588mn.a.n.a.
Q2 20238$490mn.a.n.a.
Q3 20238$503mn.a.n.a.
Q4 20237$461m43
Q1 20248$585m62
Q2 202411$570m56
Q3 202411$520m56
Q4 202410$464m57
Q1 202513$591m85
Q2 20257$491m44
Q3 20256$337m06
Q4 20255$291m1317
Q1 20267$636m2011
Q2 20265$469m1219

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MGY and GEV →MGY and XOM →MGY and CVX →Choose a stock to compare with MGY →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MGY, latest filings →Back to the 13F Explorer →