Pharma BD Deal Intelligence

Zymeworks Inc. / Theravance Biopharma, Inc. (TD-4208 program)

2026 · Acquisition/Merger · $929M · Pending

CALLED IT — OFF BY 0

Cash-and-royalty acquisition financing Zymeworks' pipeline

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On June 29, 2026, Theravance Biopharma entered a definitive agreement to be acquired by Zymeworks for $17.00 per share in cash (~$929 million equity value) plus a contingent value right (CVR). The CVR entitles Theravance holders to 80% of net proceeds from any future license, divestiture or monetization of ampreloxetine over ten years (Zymeworks retains 20%). Theravance brings the YUPELRI (revefenacin) royalty stream in COPD and its ampreloxetine program (Phase 3 CYPRESS in neurogenic orthostatic hypotension). The $17.00 price is a 22% premium to Theravance's close on March 3, 2026. Close expected 2H 2026.

Key facts

Related deals — scored

DealYearValueOutcome
Zymeworks Inc. / Theravance Biopharma, Inc. (TD-4208 program) (this deal)2026$929M63
Vertex Pharmaceuticals Incorporated / Concert Pharmaceuticals, Inc.2017$250M85
Madison Dearborn Partners / Ikaria, Inc.2013$1.6B85
AstraZeneca PLC / Amgen Inc.2020$2.3B84
GlaxoSmithKline plc / Theravance, Inc.2012$213M82
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GSK plc / Jiangsu Hengrui Pharmaceuticals Co. Ltd.2025$12.0B65

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