---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-302488"
form_type: "8-K"
ticker: "ZYME"
cik: "0001937653"
company_name: "Zymeworks Inc."
filed_at: "2023-12-26T23:59:59+00:00"
generated_at: "2026-06-07T07:38:14.420478+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Zymeworks raises $50M via pre-funded warrants; cash runway into H2 2027

## Summary
- Gross proceeds of ~$50M from sale of 5,086,521 pre-funded warrants at $9.8299 each.
- Each warrant exercisable at $0.0001/share, with 19.99% beneficial ownership limitation.
- EcoR1 Capital receives board nomination right for one partner until Jan 1, 2026.
- Proceeds to extend cash runway into H2 2027, fund R&D and general corporate purposes.
- Closing expected Dec 28, 2023, subject to customary conditions.

## SEC filing metadata
- accession: 0001193125-23-302488
- form_type: 8-K
- ticker: ZYME
- cik: 0001937653
- company_name: Zymeworks Inc.
- filed_at: 2023-12-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 3.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1937653/000119312523302488/0001193125-23-302488-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1937653/000119312523302488/d647927d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-302488
- JSON: https://secwatch.observer/filing/0001193125-23-302488.json
- Plain text: https://secwatch.observer/filing/0001193125-23-302488.txt

## Key facts
- Material Agreements
  Zymeworks Inc. entered into Securities Purchase Agreement with certain institutional accredited investors affiliated with EcoR1 Capital, LLC valued at approximately $50 million (effective 2023-12-23).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: certain institutional accredited investors affiliated with EcoR1 Capital, LLC
  - Value: approximately $50 million
  - Effective: 2023-12-23
  source text: On December 23, 2023, Zymeworks Inc. (the “Company”) entered into a securities purchase agreement (the “Securities Purchase Agreement”) for a private placement (the “Private Placement”) with certain institutional accredited investors affiliated with EcoR1 Capital, LLC (collectively, the “Purchasers”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1937653/000119312523302488/0001193125-23-302488-index.htm

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