0001582313 2026-06-02 2026-06-02 false 0001582313 00-0000000 8-K 2026-06-02 Xenon Pharmaceuticals Inc. Z4 001-36687 3650 Gilmore Way Burnaby BC CA V5G 4W8 (604) 484-3300 Not Applicable false false false false Common Shares, without par value XENE NASDAQ false