Jane Street
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Jane Street’s Xenon Pharmaceuticals XENE Stock Holding History

Jane Street’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 		$202K Buy
+3,468
New +$160K ﹤0.01% 10131
2025
Q4 		– Sell
-89,879
Closed -$3.77M – 12570
2025
Q3 		$3.61M Buy
89,879
+46,203
+106% +$1.63M ﹤0.01% 3920
2025
Q2 		$1.37M Buy
+43,676
New +$1.42M ﹤0.01% 5054
2025
Q1 		– Sell
-11,138
Closed -$423K – 10790
2024
Q4 		$437K Buy
+11,138
New +$461K ﹤0.01% 7061
2024
Q3 		– Sell
-14,755
Closed -$595K – 10513
2024
Q2 		$575K Buy
14,755
+6,306
+75% +$252K ﹤0.01% 6784
2024
Q1 		$364K Sell
8,449
-20,941
-71% -$963K ﹤0.01% 7243
2023
Q4 		$1.35M Buy
29,390
+4,911
+20% +$174K ﹤0.01% 5021
2023
Q3 		$836K Buy
24,479
+15,762
+181% +$590K ﹤0.01% 5463
2023
Q2 		$336K Buy
8,717
+3,051
+54% +$121K ﹤0.01% 6947
2023
Q1 		$203K Sell
5,666
-9,624
-63% -$356K ﹤0.01% 7824
2022
Q4 		$603K Sell
15,290
-26,622
-64% -$969K ﹤0.01% 5812
2022
Q3 		$1.51M Buy
+41,912
New +$1.51M ﹤0.01% 4671
2022
Q2 		– Sell
-16,117
Closed -$487K – 11060
2022
Q1 		$493K Buy
+16,117
New +$482K ﹤0.01% 7519

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 $5.72T AUM 30.48% 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

Jane Street's XENE Position: Q1 2026 in Review

Jane Street opened a new position in Xenon Pharmaceuticals (XENE) in Q1 2026: 3,468 shares worth $202K. The stake represents ﹤0.01% of the portfolio and ranks #10131 among its holdings. This is a return to the name: Jane Street previously reported a position in XENE as recently as Q3 2025.

Jane Street first reported a position in XENE in Q1 2022 and has held it in 13 quarters since. The position peaked at $3.61M in Q3 2025. 290 funds tracked by Wall St. Rank hold XENE as of Q1 2026.

  • Jane Street held 3,468 shares of Xenon Pharmaceuticals worth $202K as of Q1 2026.
  • Xenon Pharmaceuticals was a new Jane Street position in Q1 2026.
  • Xenon Pharmaceuticals made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10131 holding.
  • Jane Street first reported a position in Xenon Pharmaceuticals in Q1 2022 and has held it in 13 quarters since.
  • Jane Street's Xenon Pharmaceuticals position peaked at $3.61M in Q3 2025.
  • 290 funds tracked by Wall St. Rank held Xenon Pharmaceuticals as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.