Pharma BD Deal Intelligence

Sanofi SA / Protein Sciences Corp.

2017 · Acquisition/Merger · $650M · Complete

CALLED IT — OFF BY 16
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The coverage arc

Jul 11, 2017 GlobeNewsWire Bullish

Sanofi to acquire Protein Sciences maker of Flublok recombinant influenza vaccine for $650 million upfront plus $100 million in milestones

Aug 28, 2017 BioSpace Bullish

Sanofi completes the acquisition of Protein Sciences Corporation and its Flublok recombinant protein-based influenza vaccine platform

Feb 10, 2026 Pharmaceutical Technology Bullish

Sanofi acquires Protein Sciences gaining FDA-approved Flublok quadrivalent recombinant influenza vaccine and BEST manufacturing platform

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Sanofi acquired Protein Sciences for $650M + $100M milestones for vaccines biotech.

Key facts

Related deals — scored

DealYearValueOutcome
Sanofi SA / Protein Sciences Corp. (this deal)2017$650M72
Sanofi SA / Regeneron Pharmaceuticals, Inc.2007$1.0B97
Sanofi SA / Synthelabo S.A.1998$11.0B84
Sanofi SA / Genzyme Corporation2011$20.1B84
Sanofi SA / Amunix Pharmaceuticals Inc.2021$1.2B76
Sanofi SA / Genzyme Corporation2010$18.5B75
Sanofi SA / Translate Bio Inc.2018$805M73

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