L3VLUP
ProSign in

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 Sep 2025
the date the book describes
Filed
14 Nov 2025
latest of these filings; the earliest 12 Nov 2025
Managers listing it
6
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q2 2025 and Q3 2025; 6 listed it in both
Shares listed
14,103,973
combined, among listed positions
Reported value
$337m
combined, at the quarter end

Among the 95 comparable managers: 0 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing MGY in Q3 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

6 of 6 holders

ActionFiling
Janus Henderson Group Ltd6,355,219$152m0.07%Trimmed-98,88514 Nov 2025 (the filing on sec.gov)
AllianceBernstein LP4,658,667$111munder 0.1%Trimmed-116,71114 Nov 2025 (the filing on sec.gov)
Balyasny Asset Management LLC1,777,149$42m0.05%Trimmed-452,30114 Nov 2025 (the filing on sec.gov)
Woodline Partners LP643,184$15m0.07%Trimmed-1,667,23214 Nov 2025 (the filing on sec.gov)
Two Sigma Advisers LP554,500$13munder 0.1%Trimmed-288,50014 Nov 2025 (the filing on sec.gov)
Quantbot Technologies LP115,254$2.8m0.07%Trimmed-8,42812 Nov 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2025 to Q3 2025, among managers that listed it in both quarters or opened it.

Increases

No increase among listed positions.

Reductions

New positions and exits

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

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

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 →