State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Magnolia Oil & Gas MGY Stock Holding History

State of Wisconsin Investment Board’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 		$12.2M Sell
386,531
-50,550
-12% -$1.35M 0.03% 562
2025
Q4 		$9.57M Buy
437,081
+42,742
+11% +$972K 0.02% 702
2025
Q3 		$9.41M Buy
394,339
+4,019
+1% +$95.8K 0.02% 675
2025
Q2 		$8.77M Sell
390,320
-5,079
-1% -$112K 0.02% 703
2025
Q1 		$9.99M Buy
395,399
+3,034
+0.8% +$73.5K 0.03% 633
2024
Q4 		$9.17M Buy
392,365
+17,226
+5% +$448K 0.02% 698
2024
Q3 		$9.16M Buy
375,139
+8,963
+2% +$226K 0.02% 698
2024
Q2 		$9.28M Sell
366,176
-20,305
-5% -$518K 0.02% 641
2024
Q1 		$10M Sell
386,481
-26,481
-6% -$581K 0.03% 623
2023
Q4 		$8.79M Sell
412,962
-9,417
-2% -$206K 0.02% 693
2023
Q3 		$9.68M Sell
422,379
-28,345
-6% -$633K 0.03% 582
2023
Q2 		$9.42M Sell
450,724
-33,625
-7% -$695K 0.03% 639
2023
Q1 		$10.6M Sell
484,349
-31,078
-6% -$690K 0.03% 551
2022
Q4 		$12.1M Sell
515,427
-85,254
-14% -$2.08M 0.04% 474
2022
Q3 		$11.9M Sell
600,681
-52,446
-8% -$1.16M 0.04% 477
2022
Q2 		$13.7M Sell
653,127
-363,388
-36% -$9.08M 0.04% 489
2022
Q1 		$24M Hold
1,016,515
– – 0.05% 374
2021
Q4 		$19.2M Hold
1,016,515
– – 0.04% 497
2021
Q3 		$18.1M Sell
1,016,515
-66,850
-6% -$1.01M 0.04% 506
2021
Q2 		$16.9M Buy
1,083,365
+217,260
+25% +$2.79M 0.04% 520
2021
Q1 		$9.94M Hold
866,105
– – 0.02% 740
2020
Q4 		$6.12M Sell
866,105
-66,985
-7% -$399K 0.01% 919
2020
Q3 		$4.82M Hold
933,090
– – 0.01% 950
2020
Q2 		$5.65M Hold
933,090
– – 0.02% 841
2020
Q1 		$3.73M Buy
933,090
+93,290
+11% +$803K 0.01% 890
2019
Q4 		$10.6M Hold
839,800
– – 0.03% 653
2019
Q3 		$9.32M Buy
839,800
+163,400
+24% +$1.75M 0.03% 644
2019
Q2 		$7.83M Buy
676,400
+14,900
+2% +$183K 0.02% 693
2019
Q1 		$7.94M Buy
661,500
+151,400
+30% +$1.84M 0.02% 695
2018
Q4 		$5.72M Buy
+510,100
New +$6.42M 0.02% 739

Other funds holding MGY

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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

State of Wisconsin Investment Board's MGY Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its Magnolia Oil & Gas (MGY) stake by 12% in Q1 2026, selling an estimated $1.35M and leaving 386,531 shares worth $12.2M. The position accounts for 0.03% of the portfolio, ranked #562.

State of Wisconsin Investment Board first reported a position in MGY in Q4 2018 and has held it in 30 quarters since. The position peaked at $24M in Q1 2022. 405 funds tracked by Wall St. Rank hold MGY as of Q1 2026.

  • State of Wisconsin Investment Board held 386,531 shares of Magnolia Oil & Gas worth $12.2M as of Q1 2026.
  • State of Wisconsin Investment Board sold 50,550 Magnolia Oil & Gas shares in Q1 2026, an estimated $1.35M.
  • Magnolia Oil & Gas made up 0.03% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #562 holding.
  • State of Wisconsin Investment Board first reported a position in Magnolia Oil & Gas in Q4 2018 and has held it in 30 quarters since.
  • State of Wisconsin Investment Board's Magnolia Oil & Gas position peaked at $24M in Q1 2022.
  • 405 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.