LJAC
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L.J. Altfest & Co’s Xenon Pharmaceuticals XENE Stock Holding History

L.J. Altfest & Co’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 		– Sell
-8,232
Closed -$369K – 384
2025
Q4 		$369K Buy
8,232
+501
+6% +$21K 0.04% 261
2025
Q3 		$310K Buy
+7,731
New +$272K 0.03% 283

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

L.J. Altfest & Co's XENE Position: Q1 2026 in Review

L.J. Altfest & Co sold out of Xenon Pharmaceuticals (XENE) in Q1 2026, closing a stake of 8,232 shares — an estimated $369K sold.

L.J. Altfest & Co first reported a position in XENE in Q3 2025 and held it in 2 quarters. The position peaked at $369K in Q4 2025. 290 funds tracked by Wall St. Rank hold XENE as of Q1 2026.

  • L.J. Altfest & Co reported no remaining Xenon Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • L.J. Altfest & Co sold 8,232 Xenon Pharmaceuticals shares in Q1 2026, an estimated $369K.
  • L.J. Altfest & Co first reported a position in Xenon Pharmaceuticals in Q3 2025 and held it in 2 quarters.
  • L.J. Altfest & Co's Xenon Pharmaceuticals position peaked at $369K in Q4 2025.
  • 290 funds tracked by Wall St. Rank held Xenon Pharmaceuticals as of Q1 2026.

Based on L.J. Altfest & Co's 13F filing for Q1 2026, filed 28 Apr 2026.