Magnolia Oil & Gas
404 hedge funds and large institutions have $6.39B invested in Magnolia Oil & Gas in 2026 Q1 according to their latest regulatory filings, with 75 funds opening new positions, 147 increasing their positions, 138 reducing their positions, and 38 closing their positions.
97% more first-time investments, than exits
New positions opened: 75 | Existing positions closed: 38
50% more funds holding in top 10
Funds holding in top 10: 2 → 3 (+1)
46% more capital invested
Capital invested by funds: $4.37B → $6.39B (+$2.02B)
7% more funds holding
Funds holding: 378 → 404 (+26)
7% more repeat investments, than reductions
Existing positions increased: 147 | Existing positions reduced: 138
0.85% more ownership
Funds ownership: 108.92% → 109.77% (+0.85%)
33% less call options, than puts
Call options by funds: $2.66M | Put options by funds: $3.95M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$149M |
| 2 |
BlackRock
New York
|
+$48.7M |
| 3 |
Two Sigma Investments
New York
|
+$33.9M |
| 4 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$32.2M |
| 5 |
FAM
Fred Alger Management
New York
|
+$27.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$114M |
| 2 |
HHAM
HITE Hedge Asset Management
Braintree,
Massachusetts
|
-$31.8M |
| 3 |
EIP
Epoch Investment Partners
New York
|
-$28.2M |
| 4 |
BTW
Boston Trust Walden
Boston,
Massachusetts
|
-$25.2M |
| 5 |
Balyasny Asset Management
Chicago,
Illinois
|
-$19.9M |
MGY Hedge Fund Activity: Q1 2026 in Review
404 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Magnolia Oil & Gas (MGY) for Q1 2026, worth a combined $6.39B — up 46% from $4.37B a quarter earlier.
Buyers outnumbered sellers: 75 funds opened new MGY positions and 38 closed out — a net gain of 37 holders — while 147 added to existing stakes and 138 trimmed.
The largest buyer was Arrowstreet Capital, adding an estimated $149M. The largest seller was Wellington Management Group, exiting entirely with an estimated $114M sold.
- 404 institutional investors held Magnolia Oil & Gas (MGY) as of Q1 2026, up from 378 in Q4 2025.
- Funds reported $6.39B of Magnolia Oil & Gas stock for Q1 2026, up 46% quarter-over-quarter.
- 75 funds opened new Magnolia Oil & Gas positions in Q1 2026 and 38 closed out, a net change of +37 holders.
- The largest Magnolia Oil & Gas buyer in Q1 2026 was Arrowstreet Capital, an estimated $149M added.
- The largest Magnolia Oil & Gas seller in Q1 2026 was Wellington Management Group, an estimated $114M sold.
Based on aggregated 13F filings for Q1 2026.