Ultragenyx agrees to sell priority review voucher for $210 million

Ultragenyx Pharmaceutical entered a definitive agreement to sell its Rare Pediatric Disease Priority Review Voucher for $210 million. The company received the voucher after the FDA approved Genglycos for glycogen storage disease type Ia. Completion remains contingent on customary conditions, including the Hart-Scott-Rodino waiting period.

Ultragenyx says the transaction would provide non-dilutive funding for its rare-disease pipeline and aid its progress toward profitability. The cash payment is not yet assured because the agreement has not closed.

  • 1Ultragenyx announced the definitive voucher-sale agreement on October 7, 2026.
  • 2The agreed consideration is $210 million.
  • 3The voucher resulted from FDA approval of GENGLYCOS, also called DTX401, for glycogen storage disease type Ia.
  • 4Closing requires customary conditions, including expiry of the applicable Hart-Scott-Rodino Antitrust Improvements Act waiting period.
  • 5Ultragenyx did not disclose the buyer or a planned closing date.
  • 6Jefferies LLC is the exclusive financial adviser, while Gibson, Dunn and Crutcher LLP is legal counsel to Ultragenyx.
  • Material 3 says 20% of the proceeds will go to NIH, but the company announcement does not state this; material 6 attributes a 20 per cent NIH payment to a separate Cyprium Therapeutics transaction.
  • The purchaser and expected closing date have not been disclosed.
  • The transaction remains subject to closing conditions and may not be completed.

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