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Isthmus Partners’s Magnolia Oil & Gas MGY Stock Holding History

Isthmus Partners’s Portfolio MGY Stock Details MGY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$265K Buy
10,353
+744
+8% +$21.2K 0.03% 206
2026
Q1 		$303K Sell
9,609
-8
-0.1% -$214 0.03% 188
2025
Q4 		$211K Buy
9,617
+79
+0.8% +$1.8K 0.02% 208
2025
Q3 		$228K Buy
9,538
+48
+0.5% +$1.15K 0.05% 116
2025
Q2 		$213K Hold
9,490
– – 0.02% 210
2025
Q1 		$240K Buy
9,490
+170
+2% +$4.12K 0.03% 199
2024
Q4 		$218K Buy
9,320
+460
+5% +$12K 0.03% 205
2024
Q3 		$216K Buy
+8,860
New +$223K 0.03% 190

Other funds holding MGY

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Isthmus Partners's MGY Position: Q2 2026 in Review

Isthmus Partners increased its Magnolia Oil & Gas (MGY) stake by 7.7% in Q2 2026, buying an estimated $21.2K and bringing the position to 10,353 shares worth $265K. The position accounts for 0.03% of the portfolio, ranked #206.

Isthmus Partners first reported a position in MGY in Q3 2024 and has held it in 8 quarters since. The position peaked at $303K in Q1 2026. 408 funds tracked by Wall St. Rank hold MGY as of Q2 2026.

  • Isthmus Partners held 10,353 shares of Magnolia Oil & Gas worth $265K as of Q2 2026.
  • Isthmus Partners bought 744 Magnolia Oil & Gas shares in Q2 2026, an estimated $21.2K.
  • Magnolia Oil & Gas made up 0.03% of Isthmus Partners's portfolio in Q2 2026, its #206 holding.
  • Isthmus Partners first reported a position in Magnolia Oil & Gas in Q3 2024 and has held it in 8 quarters since.
  • Isthmus Partners's Magnolia Oil & Gas position peaked at $303K in Q1 2026.
  • 408 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.

Based on Isthmus Partners's 13F filing for Q2 2026, filed 20 Jul 2026.