Xenon Pharmaceuticals Inc.

XENE·NASDAQ·$53.98Share Price as of 11/2·$4BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/06/26 10-QQ1 ended 03/31/2605/07/26 10-KFY 202502/26/26 10-QQ3 ended 09/30/2511/03/25 10-QQ2 ended 06/30/2508/11/25

Disclosures

8-KCurrent report08/06/26 8-KCurrent report06/03/26 8-KCurrent report05/07/26 8-KCurrent report04/13/26 8-KCurrent report03/13/26

Prospectuses and Registrations

S-8Registration of securities for employees06/03/26 S-8 POSPost-effective amendment (S-8)06/03/26 S-8 POSPost-effective amendment (S-8)06/03/26 S-8 POSPost-effective amendment (S-8)06/03/26 S-8 POSPost-effective amendment (S-8)06/03/26

Proxies

DEF 14ADefinitive proxy04/22/26 DEFA14AAdditional proxy materials04/22/26 DEF 14ADefinitive proxy04/24/25 DEFA14AAdditional proxy materials04/24/25 DEF 14ADefinitive proxy04/26/24

Ownership

Form 4Insider transaction10/16/26 Form 4Insider transaction10/01/26 Form 4Insider transaction10/01/26 Form 4Insider transaction09/03/26 Form 4Insider transaction08/31/26

Other

ARSAnnual report to shareholders04/22/26 ARSAnnual report to shareholders04/24/25 ARSAnnual report to shareholders04/26/24 ARSAnnual report to shareholders04/27/23 CT ORDERCT ORDER09/01/20