State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Antero Midstream AM Stock Holding History

State of Wisconsin Investment Board’s Portfolio AM Stock Details AM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.01M Buy
44,235
+9,499
+27% +$206K ﹤0.01% 1770
2026
Q1 		$792K Buy
34,736
+15,010
+76% +$310K ﹤0.01% 1786
2025
Q4 		$351K Sell
19,726
-14,511
-42% -$261K ﹤0.01% 2110
2025
Q3 		$666K Buy
34,237
+184
+0.5% +$3.33K ﹤0.01% 1758
2025
Q2 		$645K Sell
34,053
-2,933
-8% -$52.4K ﹤0.01% 1746
2025
Q1 		$666K Buy
36,986
+3,108
+9% +$51.5K ﹤0.01% 1636
2024
Q4 		$511K Buy
33,878
+3,626
+12% +$55.2K ﹤0.01% 1806
2024
Q3 		$455K Sell
30,252
-722
-2% -$10.5K ﹤0.01% 1915
2024
Q2 		$457K Buy
30,974
+468
+2% +$6.71K ﹤0.01% 1866
2024
Q1 		$429K Sell
30,506
-10,221
-25% -$131K ﹤0.01% 1830
2023
Q4 		$510K Sell
40,727
-181
-0.4% -$2.28K ﹤0.01% 1723
2023
Q3 		$490K Buy
40,908
+14,418
+54% +$171K ﹤0.01% 1778
2023
Q2 		$307K Sell
26,490
-12,699
-32% -$135K ﹤0.01% 1992
2023
Q1 		$411K Buy
39,189
+418
+1% +$4.45K ﹤0.01% 1951
2022
Q4 		$418K Sell
38,771
-18,871
-33% -$200K ﹤0.01% 1968
2022
Q3 		$529K Sell
57,642
-20,039
-26% -$197K ﹤0.01% 1949
2022
Q2 		$703K Buy
77,681
+55,577
+251% +$578K ﹤0.01% 1879
2022
Q1 		$240K Sell
22,104
-18,563
-46% -$188K ﹤0.01% 2138
2021
Q4 		$394K Sell
40,667
-1,256
-3% -$13K ﹤0.01% 1756
2021
Q3 		$437K Buy
41,923
+2,024
+5% +$19.8K ﹤0.01% 1730
2021
Q2 		$415K Buy
39,899
+3,011
+8% +$28.7K ﹤0.01% 1727
2021
Q1 		$333K Hold
36,888
– – ﹤0.01% 1774
2020
Q4 		$284K Sell
36,888
-1,560
-4% -$10.6K ﹤0.01% 1878
2020
Q3 		$206K Buy
38,448
+760
+2% +$4.63K ﹤0.01% 1908
2020
Q2 		$192K Buy
37,688
+4,990
+15% +$22.1K ﹤0.01% 1613
2020
Q1 		$69K Sell
32,698
-3,380
-9% -$16.1K ﹤0.01% 1670
2019
Q4 		$274K Buy
36,078
+3,900
+12% +$24.7K ﹤0.01% 1554
2019
Q3 		$238K Hold
32,178
– – ﹤0.01% 1487
2019
Q2 		$369K Buy
+32,178
New +$412K ﹤0.01% 1398

Other funds holding AM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
TCA
Tortoise Capital Advisors Overland Park, Kansas $9.84B AUM 26.47% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

State of Wisconsin Investment Board's AM Position: Q2 2026 in Review

State of Wisconsin Investment Board increased its Antero Midstream (AM) stake by 27% in Q2 2026, buying an estimated $206K and bringing the position to 44,235 shares worth $1.01M. The position accounts for ﹤0.01% of the portfolio, ranked #1770.

State of Wisconsin Investment Board first reported a position in AM in Q2 2019 and has held it in 29 quarters since. 528 funds tracked by Wall St. Rank hold AM as of Q2 2026.

  • State of Wisconsin Investment Board held 44,235 shares of Antero Midstream worth $1.01M as of Q2 2026.
  • State of Wisconsin Investment Board bought 9,499 Antero Midstream shares in Q2 2026, an estimated $206K.
  • Antero Midstream made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #1770 holding.
  • State of Wisconsin Investment Board first reported a position in Antero Midstream in Q2 2019 and has held it in 29 quarters since.
  • 528 funds tracked by Wall St. Rank held Antero Midstream as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.