Xenon Joins the Russell 3000® and Russell 2000® Indexes

Core Points - Xenon Pharmaceuticals Inc. has been added to the Russell 3000® and Russell 2000® Indexes as part of the annual reconstitution effective June 27, 2025 [1] - The Russell 3000® Index tracks the performance of the largest 3,000 U.S. stocks by market capitalization, while the Russell 2000® Index measures the performance of the 2,000 smallest companies within the Russell 3000® Index [2] - Approximately $10.6 trillion in assets are benchmarked against Russell U.S. indexes, making them widely used by investment managers and institutional investors [3] Company Overview - Xenon Pharmaceuticals is a neuroscience-focused biopharmaceutical company dedicated to discovering, developing, and delivering life-changing therapeutics [4] - The company is advancing an ion channel product portfolio to address high unmet medical needs, including epilepsy and depression [4] - Azetukalner, a novel and highly potent selective Kv7 potassium channel opener, is the most advanced clinically validated potassium channel modulator in late-stage clinical development for multiple indications [4]