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Horizon Investments’s Magnolia Oil & Gas MGY Stock Holding History

Horizon Investments’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
Q1 		$3.15M Buy
100,482
+98,010
+3,965% +$2.62M 0.04% 373
2025
Q4 		$54.1K Sell
2,472
-20,875
-89% -$475K ﹤0.01% 1122
2025
Q3 		$557K Buy
23,347
+1,577
+7% +$37.6K 0.01% 792
2025
Q2 		$486K Buy
+21,770
New +$482K 0.01% 787

Other funds holding MGY

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $58.4B AUM

Horizon Investments's MGY Position: Q1 2026 in Review

Horizon Investments increased its Magnolia Oil & Gas (MGY) stake by 3,965% in Q1 2026, buying an estimated $2.62M and bringing the position to 100,482 shares worth $3.15M. The position accounts for 0.04% of the portfolio, ranked #373.

Horizon Investments first reported a position in MGY in Q2 2025 and has held it in 4 quarters since. 404 funds tracked by Wall St. Rank hold MGY as of Q1 2026.

  • Horizon Investments held 100,482 shares of Magnolia Oil & Gas worth $3.15M as of Q1 2026.
  • Horizon Investments bought 98,010 Magnolia Oil & Gas shares in Q1 2026, an estimated $2.62M.
  • Magnolia Oil & Gas made up 0.04% of Horizon Investments's portfolio in Q1 2026, its #373 holding.
  • Horizon Investments first reported a position in Magnolia Oil & Gas in Q2 2025 and has held it in 4 quarters since.
  • 404 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q1 2026.

Based on Horizon Investments's 13F filing for Q1 2026, filed 15 May 2026.