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
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 $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.