Citadel Advisors
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Citadel Advisors’s Magnolia Oil & Gas MGY Stock Holding History

Citadel Advisors’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
2025
Q3 		– Sell
-10,300
Closed -$232K – 13584
2025
Q2 		$232K Sell
10,300
-7,200
-41% -$159K ﹤0.01% 10381
2025
Q1 		$442K Sell
17,500
-7,200
-29% -$175K ﹤0.01% 8747
2024
Q4 		$577K Sell
24,700
-24,400
-50% -$634K ﹤0.01% 8243
2024
Q3 		$1.2M Sell
49,100
-55,600
-53% -$1.4M ﹤0.01% 6495
2024
Q2 		$2.65M Buy
104,700
+4,100
+4% +$105K ﹤0.01% 4796
2024
Q1 		$2.61M Buy
100,600
+73,300
+268% +$1.61M ﹤0.01% 5019
2023
Q4 		$581K Sell
27,300
-81,900
-75% -$1.79M ﹤0.01% 7762
2023
Q3 		$2.5M Buy
109,200
+3,300
+3% +$73.7K ﹤0.01% 4813
2023
Q2 		$2.21M Buy
105,900
+50,600
+92% +$1.05M ﹤0.01% 4981
2023
Q1 		$1.21M Sell
55,300
-12,500
-18% -$277K ﹤0.01% 6376
2022
Q4 		$1.59M Buy
67,800
+51,600
+319% +$1.26M ﹤0.01% 5919
2022
Q3 		$321K Sell
16,200
-31,300
-66% -$693K ﹤0.01% 9420
2022
Q2 		$997K Buy
47,500
+29,200
+160% +$730K ﹤0.01% 7017
2022
Q1 		$433K Sell
18,300
-72,600
-80% -$1.59M ﹤0.01% 9731
2021
Q4 		$1.72M Sell
90,900
-16,400
-15% -$326K ﹤0.01% 6607
2021
Q3 		$1.91M Buy
107,300
+32,700
+44% +$494K ﹤0.01% 6478
2021
Q2 		$1.17M Buy
74,600
+55,200
+285% +$709K ﹤0.01% 7952
2021
Q1 		$223K Buy
19,400
+1,200
+7% +$12.5K ﹤0.01% 11492
2020
Q4 		$128K Buy
+18,200
New +$109K ﹤0.01% 10049
2020
Q3 		– Sell
-13,500
Closed -$82K – 10473
2020
Q2 		$82K Buy
+13,500
New +$73.7K ﹤0.01% 9098
2019
Q1 		– Sell
-28,300
Closed -$317K – 9637
2018
Q4 		$317K Buy
28,300
+3,500
+14% +$44K ﹤0.01% 7164
2018
Q3 		$372K Buy
+24,800
New +$324K ﹤0.01% 7212

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

Citadel Advisors's MGY Position: Q1 2026 in Review

Citadel Advisors increased its Magnolia Oil & Gas (MGY) stake by 4.1% in Q1 2026, buying an estimated $380K and bringing the position to 364,172 shares worth $11.5M. The position accounts for ﹤0.01% of the portfolio, ranked #3063.

Citadel Advisors first reported a position in MGY in Q3 2018 and has held it in 30 quarters since. The position peaked at $22.9M in Q1 2023. 405 funds tracked by Wall St. Rank hold MGY as of Q1 2026.

  • Citadel Advisors held 364,172 shares of Magnolia Oil & Gas worth $11.5M as of Q1 2026.
  • Citadel Advisors bought 14,208 Magnolia Oil & Gas shares in Q1 2026, an estimated $380K.
  • Magnolia Oil & Gas made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #3063 holding.
  • Citadel Advisors first reported a position in Magnolia Oil & Gas in Q3 2018 and has held it in 30 quarters since.
  • Citadel Advisors's Magnolia Oil & Gas position peaked at $22.9M in Q1 2023.
  • 405 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.