---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-067040"
form_type: "8-K"
ticker: "XENE"
cik: "0001582313"
company_name: "Xenon Pharmaceuticals Inc."
filed_at: "2023-11-30T23:59:59+00:00"
generated_at: "2026-06-07T19:52:04.142270+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Xenon Pharmaceuticals raises ~$281.6M in underwritten public offering of shares and pre-funded warrants

## Summary
- Net proceeds ~$281.6M from sale of 8,461,542 common shares and 769,230 pre-funded warrants at $32.50 per share/warrant.
- Underwriters: J.P. Morgan, Jefferies, BofA Securities, Stifel, and RBC Capital Markets.
- Underwriters granted 30-day option to purchase up to an additional 1,384,615 common shares.
- Pre-funded warrants exercisable at $0.0001 per share, with 4.99% beneficial ownership limitation (adjustable to 19.99%).
- Offering made under existing shelf registration statement (Oct 2021); underwriting agreement dated November 29, 2023.

## SEC filing metadata
- accession: 0000950170-23-067040
- form_type: 8-K
- ticker: XENE
- cik: 0001582313
- company_name: Xenon Pharmaceuticals Inc.
- filed_at: 2023-11-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1582313/000095017023067040/0000950170-23-067040-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1582313/000095017023067040/xene-20231129.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-067040
- JSON: https://secwatch.observer/filing/0000950170-23-067040.json
- Plain text: https://secwatch.observer/filing/0000950170-23-067040.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.