MAGNOLIA OIL & GAS CORP (MGY): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in MGY · Energy. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
24
13F filers
Aggregate Value
$280.9M
Across holders
Last Price
$27.22
2026-08-24
Sector
Energy
GICS
Quarterly fund activity8 increased15 reduced2 exited
Full exits: CITADEL ADVISORS LLC, TUDOR INVESTMENT CORP ET AL
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 5.46M | $139.8M | 49.8% | 0.1% | Reduced | $-20.5M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 1.42M | $36.2M | 12.9% | 0.0% | Reduced | $-7.1M | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 1.30M | $33.2M | 11.8% | 0.0% | Reduced | $-10.4M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 595K | $15.2M | 5.4% | 0.0% | Added | +$14.8M | Q2 2026 |
| Squarepoint Ops LLC CIK 0001642575 | Hedge Fund | 430K | $11.0M | 3.9% | 0.0% | Reduced | $-626K | Q2 2026 |
| Point72 Asset Management, L.P. CIK 0001603466 | Hedge Fund | 386K | $9.9M | 3.5% | 0.0% | Reduced | $-7.9M | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 328K | $8.4M | 3.0% | 0.0% | Added | — | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 261K | $6.7M | 2.4% | 0.0% | Reduced | $-8.6M | Q2 2026 |
| FRED ALGER MANAGEMENT, LLC CIK 0000003520 | Hedge Fund | 171K | $4.4M | 1.6% | 0.0% | Reduced | $-26.2M | Q2 2026 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC CIK 0001556921 | Hedge Fund | 155K | $4.0M | 1.4% | 0.0% | Reduced | $-21.2M | Q2 2026 |
Reduced
Hedge Fund
$139.8M· 49.8% of total· 0.1% port· 5.46M sh· $-20.5M QoQ· Q2 2026
Reduced
Hedge Fund
$36.2M· 12.9% of total· 0.0% port· 1.42M sh· $-7.1M QoQ· Q2 2026
Reduced
Hedge Fund
$33.2M· 11.8% of total· 0.0% port· 1.30M sh· $-10.4M QoQ· Q2 2026
Added
Hedge Fund
$15.2M· 5.4% of total· 0.0% port· 595K sh· +$14.8M QoQ· Q2 2026
Reduced
Hedge Fund
$11.0M· 3.9% of total· 0.0% port· 430K sh· $-626K QoQ· Q2 2026
Reduced
Hedge Fund
$9.9M· 3.5% of total· 0.0% port· 386K sh· $-7.9M QoQ· Q2 2026
Added
Hedge Fund
$8.4M· 3.0% of total· 0.0% port· 328K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$6.7M· 2.4% of total· 0.0% port· 261K sh· $-8.6M QoQ· Q2 2026
Reduced
Hedge Fund
$4.4M· 1.6% of total· 0.0% port· 171K sh· $-26.2M QoQ· Q2 2026
Reduced
Hedge Fund
$4.0M· 1.4% of total· 0.0% port· 155K sh· $-21.2M QoQ· Q2 2026
Reduced
Hedge Fund
$2.3M· 0.8% of total· 0.0% port· 90K sh· $-2.9M QoQ· Q2 2026
Reduced
Hedge Fund
$1.7M· 0.6% of total· 0.0% port· 67K sh· $-56K QoQ· Q2 2026
Reduced
Hedge Fund
$1.5M· 0.5% of total· 0.0% port· 58K sh· +$1.4M QoQ· Q2 2026
Added
Hedge Fund
$1.2M· 0.4% of total· 0.0% port· 47K sh· $-787K QoQ· Q2 2026
Added
Hedge Fund
$1.1M· 0.4% of total· 0.0% port· 43K sh· — QoQ· Q2 2026
Added
Hedge Fund
$936K· 0.3% of total· 0.1% port· 36K sh· — QoQ· Q2 2026
Added
Hedge Fund
$820K· 0.3% of total· 0.0% port· 32K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$689K· 0.2% of total· 0.0% port· 27K sh· $-2.6M QoQ· Q2 2026
Reduced
Hedge Fund
$682K· 0.2% of total· 0.0% port· 27K sh· $-593K QoQ· Q2 2026
Added
Hedge Fund
$534K· 0.2% of total· 0.0% port· 21K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$365K· 0.1% of total· 0.0% port· 14K sh· $-2.1M QoQ· Q2 2026
Reduced
Hedge Fund
$265K· 0.1% of total· 0.0% port· 10K sh· $-518K QoQ· Q2 2026
Added
Hedge Fund
$81K· 0.0% of total· 0.0% port· 3K sh· $-85K QoQ· Q2 2026
Unchanged
Hedge Fund
$51K· 0.0% of total· 0.0% port· 2K sh· +$0 QoQ· Q2 2026
1–10 of 24
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