---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-130781"
form_type: "8-K"
ticker: "ZYME"
cik: "0001937653"
company_name: "Zymeworks Inc."
filed_at: "2024-05-03T23:59:59+00:00"
generated_at: "2026-06-02T23:22:15.602302+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Zymeworks files prospectus supplement for up to $150M at-the-market offering via Cantor

## Summary
- Registers up to $150M in common stock for sale through Cantor Fitzgerald as sales agent (ATM offering).
- Also registers 570,637 shares of common stock issuable upon exchange of exchangeable shares from prior redomicile.
- Prospectus supplements dated May 3, 2024, to existing Form S-3ASR shelf registration statement.
- Legal opinions from Wilson Sonsini Goodrich & Rosati filed as exhibits 5.1 and 5.2.

## SEC filing metadata
- accession: 0001193125-24-130781
- form_type: 8-K
- ticker: ZYME
- cik: 0001937653
- company_name: Zymeworks Inc.
- filed_at: 2024-05-03T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1937653/000119312524130781/0001193125-24-130781-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1937653/000119312524130781/d835347d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-130781
- JSON: https://secwatch.observer/filing/0001193125-24-130781.json
- Plain text: https://secwatch.observer/filing/0001193125-24-130781.txt

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