JY
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Jeff Yass’s Magnolia Oil & Gas MGY Stock Holding History

Jeff Yass’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 		$338K Sell
13,200
-1,300
-9% -$37.1K ﹤0.01% 10782
2026
Q1 		$458K Buy
+14,500
New +$388K ﹤0.01% 9907
2025
Q2 		– Sell
-21,500
Closed -$543K – 13311
2025
Q1 		$543K Buy
+21,500
New +$521K ﹤0.01% 8722
2024
Q3 		– Sell
-61,000
Closed -$1.55M – 12615
2024
Q2 		$1.55M Buy
61,000
+12,300
+25% +$314K ﹤0.01% 5608
2024
Q1 		$1.26M Buy
48,700
+34,100
+234% +$748K ﹤0.01% 6343
2023
Q4 		$311K Sell
14,600
-19,000
-57% -$416K ﹤0.01% 9762
2023
Q3 		$770K Sell
33,600
-52,700
-61% -$1.18M ﹤0.01% 7233
2023
Q2 		$1.8M Sell
86,300
-45,300
-34% -$937K ﹤0.01% 5355
2023
Q1 		$2.88M Sell
131,600
-53,000
-29% -$1.18M ﹤0.01% 4408
2022
Q4 		$4.33M Buy
184,600
+59,300
+47% +$1.45M ﹤0.01% 3457
2022
Q3 		$2.48M Sell
125,300
-83,800
-40% -$1.85M ﹤0.01% 4478
2022
Q2 		$4.39M Buy
209,100
+130,400
+166% +$3.26M ﹤0.01% 3397
2022
Q1 		$1.86M Sell
78,700
-108,700
-58% -$2.39M ﹤0.01% 5640
2021
Q4 		$3.54M Sell
187,400
-64,400
-26% -$1.28M ﹤0.01% 4363
2021
Q3 		$4.48M Buy
251,800
+195,800
+350% +$2.96M ﹤0.01% 4162
2021
Q2 		$875K Sell
56,000
-23,400
-29% -$301K ﹤0.01% 8141
2021
Q1 		$912K Sell
79,400
-3,100
-4% -$32.3K ﹤0.01% 7976
2020
Q4 		$582K Sell
82,500
-67,300
-45% -$401K ﹤0.01% 7950
2020
Q3 		$774K Sell
149,800
-3,100
-2% -$19.3K ﹤0.01% 6735
2020
Q2 		$927K Buy
152,900
+117,800
+336% +$643K ﹤0.01% 6099
2020
Q1 		$140K Buy
35,100
+23,700
+208% +$204K ﹤0.01% 9056
2019
Q4 		$143K Buy
+11,400
New +$128K ﹤0.01% 8972
2019
Q3 		– Sell
-21,600
Closed -$250K – 10574
2019
Q2 		$250K Buy
21,600
+800
+4% +$9.81K ﹤0.01% 8674
2019
Q1 		$250K Buy
20,800
+2,200
+12% +$26.8K ﹤0.01% 7536
2018
Q4 		$209K Buy
18,600
+3,700
+25% +$46.6K ﹤0.01% 7652
2018
Q3 		$224K Buy
+14,900
New +$194K ﹤0.01% 8013

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

Jeff Yass's MGY Position: Q2 2026 in Review

Jeff Yass reduced its Magnolia Oil & Gas (MGY) stake by 7.4% in Q2 2026, selling an estimated $408K and leaving 177,870 shares worth $4.55M. The position accounts for ﹤0.01% of the portfolio, ranked #4807.

Jeff Yass first reported a position in MGY in Q1 2019 and has held it in 29 quarters since. The position peaked at $13.4M in Q4 2023. 406 funds tracked by Wall St. Rank hold MGY as of Q2 2026.

  • Jeff Yass held 177,870 shares of Magnolia Oil & Gas worth $4.55M as of Q2 2026.
  • Jeff Yass sold 14,270 Magnolia Oil & Gas shares in Q2 2026, an estimated $408K.
  • Magnolia Oil & Gas made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #4807 holding.
  • Jeff Yass first reported a position in Magnolia Oil & Gas in Q1 2019 and has held it in 29 quarters since.
  • Jeff Yass's Magnolia Oil & Gas position peaked at $13.4M in Q4 2023.
  • 406 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.