State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Plug Power PLUG Stock Holding History

State of Wisconsin Investment Board’s Portfolio PLUG Stock Details PLUG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$487K Buy
179,735
+50,067
+39% +$157K ﹤0.01% 2125
2026
Q1 		$293K Buy
129,668
+68,048
+110% +$148K ﹤0.01% 2223
2025
Q4 		$121K Sell
61,620
-31,776
-34% -$83K ﹤0.01% 2314
2025
Q3 		$218K Sell
93,396
-131,374
-58% -$223K ﹤0.01% 2231
2025
Q2 		$335K Buy
224,770
+141,800
+171% +$141K ﹤0.01% 2023
2025
Q1 		$112K Sell
82,970
-1,646,634
-95% -$3.13M ﹤0.01% 2167
2024
Q4 		$3.68M Buy
1,729,604
+22,207
+1% +$48.4K 0.01% 1071
2024
Q3 		$3.86M Buy
1,707,397
+1,031,087
+152% +$2.31M 0.01% 1054
2024
Q2 		$1.58M Sell
676,310
-766,593
-53% -$2.2M ﹤0.01% 1397
2024
Q1 		$4.96M Buy
1,442,903
+466,965
+48% +$1.74M 0.01% 952
2023
Q4 		$4.39M Buy
975,938
+627,724
+180% +$3.29M 0.01% 1022
2023
Q3 		$2.65M Buy
348,214
+226,388
+186% +$2.21M 0.01% 1164
2023
Q2 		$1.27M Sell
121,826
-156,271
-56% -$1.42M ﹤0.01% 1404
2023
Q1 		$3.26M Buy
278,097
+15,501
+6% +$222K 0.01% 1151
2022
Q4 		$3.25M Sell
262,596
-32,497
-11% -$517K 0.01% 1153
2022
Q3 		$6.2M Sell
295,093
-69,854
-19% -$1.67M 0.02% 817
2022
Q2 		$6.05M Sell
364,947
-13,645
-4% -$271K 0.02% 904
2022
Q1 		$10.8M Buy
378,592
+9,558
+3% +$228K 0.02% 753
2021
Q4 		$10.4M Sell
369,034
-9,409
-2% -$326K 0.02% 758
2021
Q3 		$9.66M Buy
378,443
+20,978
+6% +$562K 0.02% 767
2021
Q2 		$12.2M Sell
357,465
-447,277
-56% -$13M 0.03% 665
2021
Q1 		$28.8M Buy
804,742
+304,642
+61% +$15.7M 0.06% 334
2020
Q4 		$17M Buy
500,100
+154,000
+44% +$3.49M 0.04% 464
2020
Q3 		$4.64M Buy
346,100
+331,700
+2,303% +$3.66M 0.01% 965
2020
Q2 		$118K Buy
+14,400
New +$67.4K ﹤0.01% 1625

Other funds holding PLUG

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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

State of Wisconsin Investment Board increased its Plug Power (PLUG) stake by 39% in Q2 2026, buying an estimated $157K and bringing the position to 179,735 shares worth $487K. The position accounts for ﹤0.01% of the portfolio, ranked #2125.

State of Wisconsin Investment Board first reported a position in PLUG in Q2 2020 and has held it in 25 quarters since. The position peaked at $28.8M in Q1 2021. 507 funds tracked by Wall St. Rank hold PLUG as of Q2 2026.

  • State of Wisconsin Investment Board held 179,735 shares of Plug Power worth $487K as of Q2 2026.
  • State of Wisconsin Investment Board bought 50,067 Plug Power shares in Q2 2026, an estimated $157K.
  • Plug Power made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #2125 holding.
  • State of Wisconsin Investment Board first reported a position in Plug Power in Q2 2020 and has held it in 25 quarters since.
  • State of Wisconsin Investment Board's Plug Power position peaked at $28.8M in Q1 2021.
  • 507 funds tracked by Wall St. Rank held Plug Power as of Q2 2026.

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