American Century Companies
MGY icon

American Century Companies’s Magnolia Oil & Gas MGY Stock Holding History

American Century Companies’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 		$332M Sell
10,509,240
-520,607
-5% -$13.9M 0.17% 80
2025
Q4 		$241M Sell
11,029,847
-857,808
-7% -$19.5M 0.12% 141
2025
Q3 		$284M Buy
11,887,655
+26,424
+0.2% +$630K 0.14% 111
2025
Q2 		$267M Buy
11,861,231
+1,358,878
+13% +$30.1M 0.14% 119
2025
Q1 		$265M Buy
10,502,353
+562,223
+6% +$13.6M 0.16% 106
2024
Q4 		$232M Sell
9,940,130
-602,532
-6% -$15.7M 0.13% 124
2024
Q3 		$257M Buy
10,542,662
+1,153,294
+12% +$29.1M 0.15% 120
2024
Q2 		$238M Buy
9,389,368
+847,542
+10% +$21.6M 0.15% 122
2024
Q1 		$222M Buy
8,541,826
+1,214,303
+17% +$26.6M 0.14% 148
2023
Q4 		$156M Buy
7,327,523
+1,317,570
+22% +$28.8M 0.11% 208
2023
Q3 		$138M Buy
6,009,953
+1,188,536
+25% +$26.6M 0.11% 213
2023
Q2 		$101M Buy
4,821,417
+1,678,435
+53% +$34.7M 0.08% 286
2023
Q1 		$68.8M Buy
3,142,982
+2,428,794
+340% +$53.9M 0.05% 353
2022
Q4 		$16.7M Sell
714,188
-24,788
-3% -$604K 0.01% 786
2022
Q3 		$14.6M Sell
738,976
-282,073
-28% -$6.24M 0.01% 754
2022
Q2 		$21.4M Buy
1,021,049
+121,371
+13% +$3.03M 0.02% 645
2022
Q1 		$21.3M Buy
899,678
+167,522
+23% +$3.68M 0.01% 677
2021
Q4 		$13.8M Buy
732,156
+662,773
+955% +$13.2M 0.01% 795
2021
Q3 		$1.23M Sell
69,383
-10,216
-13% -$154K ﹤0.01% 1510
2021
Q2 		$1.24M Buy
79,599
+3,133
+4% +$40.2K ﹤0.01% 1450
2021
Q1 		$878K Buy
76,466
+2,071
+3% +$21.6K ﹤0.01% 1496
2020
Q4 		$525K Sell
74,395
-62,117
-46% -$370K ﹤0.01% 1533
2020
Q3 		$706K Sell
136,512
-80,413
-37% -$501K ﹤0.01% 1220
2020
Q2 		$1.31M Sell
216,925
-1,027,270
-83% -$5.61M ﹤0.01% 1017
2020
Q1 		$4.98M Sell
1,244,195
-424,037
-25% -$3.65M 0.01% 725
2019
Q4 		$21M Buy
1,668,232
+283,210
+20% +$3.17M 0.02% 501
2019
Q3 		$15.4M Buy
+1,385,022
New +$14.9M 0.02% 533

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
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
TD Asset Management
TD Asset Management Toronto, Ontario, Canada $123B AUM 34.51% 1-Year Est. Return

American Century Companies's MGY Position: Q1 2026 in Review

American Century Companies reduced its Magnolia Oil & Gas (MGY) stake by 4.7% in Q1 2026, selling an estimated $13.9M and leaving 10,509,240 shares worth $332M. The position accounts for 0.17% of the portfolio, ranked #80.

American Century Companies first reported a position in MGY in Q3 2019 and has held it in 27 quarters since. 405 funds tracked by Wall St. Rank hold MGY as of Q1 2026.

  • American Century Companies held 10,509,240 shares of Magnolia Oil & Gas worth $332M as of Q1 2026.
  • American Century Companies sold 520,607 Magnolia Oil & Gas shares in Q1 2026, an estimated $13.9M.
  • Magnolia Oil & Gas made up 0.17% of American Century Companies's portfolio in Q1 2026, its #80 holding.
  • American Century Companies first reported a position in Magnolia Oil & Gas in Q3 2019 and has held it in 27 quarters since.
  • 405 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q1 2026.

Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.