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
2026
Q2 		$1.04M Sell
40,600
-1,500
-4% -$42.8K ﹤0.01% 8106
2026
Q1 		$1.33M Buy
42,100
+31,600
+301% +$846K ﹤0.01% 7005
2025
Q4 		$230K Sell
10,500
-37,600
-78% -$855K ﹤0.01% 10729
2025
Q3 		$1.15M Sell
48,100
-53,300
-53% -$1.27M ﹤0.01% 7228
2025
Q2 		$2.28M Buy
101,400
+11,600
+13% +$257K ﹤0.01% 5457
2025
Q1 		$2.27M Sell
89,800
-17,600
-16% -$427K ﹤0.01% 5299
2024
Q4 		$2.51M Sell
107,400
-18,900
-15% -$491K ﹤0.01% 5170
2024
Q3 		$3.08M Buy
126,300
+36,900
+41% +$930K ﹤0.01% 4726
2024
Q2 		$2.27M Sell
89,400
-29,600
-25% -$755K ﹤0.01% 5081
2024
Q1 		$3.09M Buy
119,000
+79,300
+200% +$1.74M ﹤0.01% 4734
2023
Q4 		$845K Sell
39,700
-22,100
-36% -$484K ﹤0.01% 7009
2023
Q3 		$1.42M Sell
61,800
-73,300
-54% -$1.64M ﹤0.01% 5889
2023
Q2 		$2.82M Buy
135,100
+116,900
+642% +$2.42M ﹤0.01% 4574
2023
Q1 		$398K Hold
18,200
– – ﹤0.01% 8782
2022
Q4 		$427K Buy
18,200
+1,800
+11% +$43.9K ﹤0.01% 8571
2022
Q3 		$325K Sell
16,400
-16,400
-50% -$363K ﹤0.01% 9394
2022
Q2 		$688K Buy
32,800
+20,100
+158% +$502K ﹤0.01% 7910
2022
Q1 		$300K Sell
12,700
-20,800
-62% -$457K ﹤0.01% 10595
2021
Q4 		$632K Buy
33,500
+7,500
+29% +$149K ﹤0.01% 9090
2021
Q3 		$463K Buy
+26,000
New +$393K ﹤0.01% 10061
2020
Q2 		– Sell
-12,000
Closed -$48K – 10231
2020
Q1 		$48K Buy
+12,000
New +$103K ﹤0.01% 9044
2019
Q3 		– Sell
-91,400
Closed -$1.06M – 9537
2019
Q2 		$1.06M Buy
91,400
+71,800
+366% +$881K ﹤0.01% 5609
2019
Q1 		$235K Sell
19,600
-3,700
-16% -$45.1K ﹤0.01% 7976
2018
Q4 		$261K Buy
+23,300
New +$293K ﹤0.01% 7491

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

Citadel Advisors's MGY Position: Q2 2026 in Review

Citadel Advisors sold out of Magnolia Oil & Gas (MGY) in Q2 2026, closing a stake of 364,172 shares — an estimated $10.4M sold.

Citadel Advisors first reported a position in MGY in Q3 2018 and held it in 30 quarters. The position peaked at $22.9M in Q1 2023. 410 funds tracked by Wall St. Rank hold MGY as of Q2 2026.

  • Citadel Advisors reported no remaining Magnolia Oil & Gas position as of Q2 2026 after selling out during the quarter.
  • Citadel Advisors sold 364,172 Magnolia Oil & Gas shares in Q2 2026, an estimated $10.4M.
  • Citadel Advisors first reported a position in Magnolia Oil & Gas in Q3 2018 and held it in 30 quarters.
  • Citadel Advisors's Magnolia Oil & Gas position peaked at $22.9M in Q1 2023.
  • 410 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.