Zymeworks (ZYME) 8-K Zymeworks to Present at Bloom Burton & Co. Healthcare Investor Conference 2018

Exhibit 99.1

Zymeworks to Present at Bloom Burton & Co. Healthcare Investor Conference 2018

Vancouver, Canada (April 30, 2018) – Zymeworks Inc. (NYSE/TSX: ZYME), a clinical‑stage biopharmaceutical company developing multifunctional biotherapeutics, today announced that management will present at the upcoming Bloom Burton & Co. Healthcare Investor Conference taking place May 2-3, 2018 in Toronto, Canada.

The Company will present on May 2, 2018 at 10:30 a.m. ET. Interested parties can access a live webcast of the presentation via a link from Zymeworks’ website at http://ir.zymeworks.com/events-and-presentations, which will also host a recorded replay available afterwards.

About Zymeworks Inc.

Zymeworks is a clinical-stage biopharmaceutical company dedicated to the discovery, development, and commercialization of next-generation multifunctional biotherapeutics. Zymeworks’ suite of complementary therapeutic platforms and its fully-integrated drug development engine provide the flexibility and compatibility to precisely engineer and develop highly-differentiated product candidates. Zymeworks’ lead product candidate, ZW25, is a novel bispecific antibody currently being evaluated in an adaptive Phase 1 clinical trial.  Zymeworks is also advancing a deep pipeline of preclinical product candidates and discovery-stage programs in immuno-oncology and other therapeutic areas. In addition to Zymeworks’ wholly-owned pipeline, its therapeutic platforms have been further leveraged through multiple strategic partnerships with global biopharmaceutical companies. 

Contacts:

Zymeworks Inc.

Investor Inquiries:

Ryan Dercho, Ph.D.

(604) 678-1388

ir@zymeworks.com

Media Inquiries:

Angela Bitting

(925) 202-6211

a.bitting@comcast.net