Millennium Management
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Millennium Management’s Magnolia Oil & Gas MGY Stock Holding History

Millennium Management’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
2021
Q4 		– Sell
-20,000
Closed -$356K – 7154
2021
Q3 		$356K Buy
+20,000
New +$302K ﹤0.01% 5679

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

Millennium Management's MGY Position: Q1 2026 in Review

Millennium Management increased its Magnolia Oil & Gas (MGY) stake by 61% in Q1 2026, buying an estimated $6.09M and bringing the position to 599,017 shares worth $18.9M. The position accounts for 0.01% of the portfolio, ranked #1603.

Millennium Management first reported a position in MGY in Q2 2018 and has held it in 28 quarters since. The position peaked at $86.9M in Q3 2018. 405 funds tracked by Wall St. Rank hold MGY as of Q1 2026.

  • Millennium Management held 599,017 shares of Magnolia Oil & Gas worth $18.9M as of Q1 2026.
  • Millennium Management bought 227,489 Magnolia Oil & Gas shares in Q1 2026, an estimated $6.09M.
  • Magnolia Oil & Gas made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1603 holding.
  • Millennium Management first reported a position in Magnolia Oil & Gas in Q2 2018 and has held it in 28 quarters since.
  • Millennium Management's Magnolia Oil & Gas position peaked at $86.9M in Q3 2018.
  • 405 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.