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Apellis Pharmaceuticals Inc. (APLS) shares soared 140% in Tuesday’s pre-market trade after Biogen Inc. (BIIB) announced that it has agreed to acquire the company in a $5.6 billion deal.
Biogen stated that the acquisition of Apellis will bolster its rare-disease treatment portfolio and accelerate its expansion into nephrology.
Retail sentiment on Stocktwits around Apellis Pharmaceuticals trended in the ‘bullish’ territory with message volumes at ‘high’ levels at the time of writing.
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