Zymeworks Files Registration Statement For Proposed Initial Public Offering

April 03, 2017

Vancouver, Canada – Zymeworks Inc. (“Zymeworks”), a clinical-stage biopharmaceutical company dedicated to the discovery, development and commercialization of next-generation multifunctional biotherapeutics, initially focused on the treatment of cancer, today announced that it has filed a registration statement on Form F-1 (the “Registration Statement”) with the U.S. Securities and Exchange Commission (the “SEC”) and a preliminary prospectus with the securities regulatory authorities in each of the provinces and territories of Canada for a proposed initial public offering of its common shares. The number of common shares to be sold and the price range for the proposed offering have not yet been determined. Zymeworks has applied to list its common shares on the New York Stock Exchange and intends to apply to list its common shares on the Toronto Stock Exchange, under the ticker symbol “ZYME” for both exchanges.

Citigroup Global Markets Inc., Barclays Capital Inc. and Wells Fargo Securities, LLC are acting as joint book-running managers for the offering. Cannacord Genuity Inc. is acting as a lead manager. Cormark Securities (USA) Limited is acting as a co-manager.

The Registration Statement relating to the common shares has been filed with the SEC but has not yet become effective. The common shares may not be sold nor may offers to buy be accepted prior to the time the Registration Statement becomes effective.

A preliminary prospectus has been filed with the securities commissions or similar securities regulatory authorities in each of the provinces and territories of Canada containing important information relating to the common shares. The preliminary prospectus remains subject to completion or amendment. There will not be any sale or any acceptance of an offer to buy the common shares until a receipt for the final prospectus has been issued by the relevant securities commissions in Canada.

The offering will be made only by means of a prospectus. The prospectus will contain important detailed information about the securities offered. Copies of the preliminary prospectus may be obtained, when available, from Citigroup Global Markets Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, by telephone: (800) 831-9146, or by email at prospectus@citi.com; Barclays Capital Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, by telephone: (888) 603-5847, or by email at Barclaysprospectus@broadridge.com; or Wells Fargo Securities, LLC, Attn: Equity Syndicate, 375 Park Avenue, New York, NY 10152, by telephone (800) 326-5897, or by email at cmclientsupport@wellsfargo.com. Copies of the Registration Statement and preliminary prospectus may also be obtained, when available, from www.sec.gov  and www.sedar.com, respectively.

Forward Looking Statements

This press release contains certain forward-looking statements, including statements with regard to Zymeworks’ proposed initial public offering. Words such as “expects”, “anticipates” and “intends” or similar expressions are intended to identify forward-looking statements. These forward-looking statements are subject to the inherent uncertainties in predicting future results and conditions and no assurance can be given that the initial public offering discussed above will be completed on the terms described. Completion of the proposed initial public offering and the terms thereof are subject to numerous factors, many of which are beyond Zymeworks’ control, including, without limitation, failure of customary closing conditions and the risk factors and other matters set forth in Zymeworks’ filings with the SEC and the securities commissions or similar securities regulatory authorities in each of the provinces and territories of Canada. Zymeworks undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by law.

Contact:

Investor Inquiries:
David Matousek
Senior Manager, Investor Relations & Corporate Communications
(604) 678-1388
ir@zymeworks.com

Stephanie Carrington
ICR Inc.
(646) 277-1282
stephanie.carrington@icrinc.com