Royalty Pharma ups its stake in Evrysdi revenue stream

20 October 2023

New Jersey, USA-based PTC Therapeutics (Nasdaq: PTCT) has announced an agreement with Royalty Pharma to acquire additional royalties on Evrysdi (risdiplam) for $1 billion upfront.

The deal builds on an original agreement, reached in 2020, to monetize 43% of the Evrisdi royalty stream, at a cost of $650 million.

Under the terms of the new deal, PTC will retain just 19% of revenues, with options for PTC to sell up to all of its retained royalties for up to $500 million.

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