State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Xenon Pharmaceuticals XENE Stock Holding History

State of Wisconsin Investment Board’s Portfolio XENE Stock Details XENE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$14.8M Buy
254,483
+48,914
+24% +$2.25M 0.03% 474
2025
Q4 		$9.21M Sell
205,569
-2,803
-1% -$118K 0.02% 721
2025
Q3 		$8.37M Buy
208,372
+33,522
+19% +$1.18M 0.02% 730
2025
Q2 		$5.47M Buy
174,850
+77,701
+80% +$2.53M 0.01% 897
2025
Q1 		$3.26M Buy
97,149
+565
+0.6% +$21.5K 0.01% 1073
2024
Q4 		$3.79M Sell
96,584
-4,398
-4% -$182K 0.01% 1059
2024
Q3 		$3.98M Buy
100,982
+11,182
+12% +$451K 0.01% 1040
2024
Q2 		$3.5M Sell
89,800
-1,985
-2% -$79.3K 0.01% 1074
2024
Q1 		$3.95M Sell
91,785
-3,551
-4% -$163K 0.01% 1034
2023
Q4 		$4.39M Sell
95,336
-738
-0.8% -$26.1K 0.01% 1023
2023
Q3 		$3.28M Sell
96,074
-116,055
-55% -$4.34M 0.01% 1098
2023
Q2 		$8.17M Sell
212,129
-1,927
-0.9% -$76.6K 0.02% 708
2023
Q1 		$7.66M Sell
214,056
-3,564
-2% -$132K 0.02% 723
2022
Q4 		$8.58M Buy
217,620
+146
+0.1% +$5.32K 0.03% 645
2022
Q3 		$7.85M Buy
217,474
+171,651
+375% +$6.17M 0.02% 679
2022
Q2 		$1.39M Buy
45,823
+11,623
+34% +$352K ﹤0.01% 1479
2022
Q1 		$1.04M Buy
+34,200
New +$1.02M ﹤0.01% 1635

Other funds holding XENE

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $28.2B AUM 115.26% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

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

State of Wisconsin Investment Board increased its Xenon Pharmaceuticals (XENE) stake by 24% in Q1 2026, buying an estimated $2.25M and bringing the position to 254,483 shares worth $14.8M. The position accounts for 0.03% of the portfolio, ranked #474.

State of Wisconsin Investment Board first reported a position in XENE in Q1 2022 and has held it in 17 quarters since. 290 funds tracked by Wall St. Rank hold XENE as of Q1 2026.

  • State of Wisconsin Investment Board held 254,483 shares of Xenon Pharmaceuticals worth $14.8M as of Q1 2026.
  • State of Wisconsin Investment Board bought 48,914 Xenon Pharmaceuticals shares in Q1 2026, an estimated $2.25M.
  • Xenon Pharmaceuticals made up 0.03% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #474 holding.
  • State of Wisconsin Investment Board first reported a position in Xenon Pharmaceuticals in Q1 2022 and has held it in 17 quarters since.
  • 290 funds tracked by Wall St. Rank held Xenon Pharmaceuticals as of Q1 2026.

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