Why Alnylam Pharmaceuticals Inc. Shares Skyrocketed

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What: Shares of Alnylam Pharmaceuticals (NASDAQ: ALNY  ) , a biopharmaceutical company focused on developing RNAi-based therapeutics, rallied as much as 70% after announcing a sizable investment by Sanofi's (NYSE: SNY  ) Genzyme.

So what: According to the terms of this collaboration/investment, Sanofi will pay Alnylam $700 million in order to gain expanded rights to familial amyloidotic polyneuropathy drug patisiran globally, except for North America and Western Europe. In addition, Sanofi will gain global rights to co-develop and co-commercialize ALN-TTRsc, a mid-stage drug for familial amyloid cardiomyopathy, as well as two additional products in early clinical trials. As with patisiran, Alnylam maintains licensing rights in North America and Western Europe. Finally, Sanofi will have the option until at least 2020 to develop and commercialize rare genetic disease drugs from Alynlam's pipeline globally, minus North American and Western Europe. With its investment, Sanofi becomes a 12% stakeholder in Alnylam, with its purchase price being $80/share, or a 27% premium to Friday's close.

Now what: This is one of those head-scratchers, because the deal seems to make a lot of sense for Sanofi which can utilize Alnylam's RNAi technology platform to treat genetic diseases in the Asia-Pacific region, while not really providing the clearest of catalysts for Alnylam. Yes, the purchase of 12% of Alnylam's outstanding shares at a 27% premium is a catalyst in and of itself, and it could speak to the idea of Sanofi eventually buying Alnylam if their collaboration produces solid results. Unfortunately, at a valuation now topping $6 billion, I'd like to see its multiple trials start to turn into marketable and FDA-approved compounds. Until a number of these experimental compounds reach later-stage studies, I have a hard time seeing how investors are going to squeeze any more upside out of Alnylam.

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Sean Williams

A Fool since 2010, and a graduate from UC San Diego with a B.A. in Economics, Sean specializes in the healthcare sector and in investment planning topics. You'll usually find him writing about Obamacare, marijuana, developing drugs, diagnostics, and medical devices, Social Security, taxes, or any number of other macroeconomic issues.

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Related Tickers

9/4/2015 3:59 PM
ALNY $97.80 Up +0.55 +0.57%
Alnylam Pharmaceut… CAPS Rating: ***
SNY $48.45 Down -1.12 -2.26%
Sanofi (ADR) CAPS Rating: *****