HALOZYME THERAPEUTICS, INC.

Halozyme Therapeutics, Inc. is a biopharmaceutical company advancing disruptive solutions to improve patient experiences and outcomes for emerging and established therapies. As the innovators of ENHANZE drug delivery technology ( ENHANZE ) with our proprietary enzyme, rHuPH20, our commercially validated solution is used to facilitate the subcutaneous ( SC ) delivery of injected drugs and fluids, with the goal of improving the patient experience with rapid SC delivery and reduced treatment burden. We license our technology to biopharmaceutical companies to collaboratively develop products that combine ENHANZE with our partners’ proprietary compounds. We are also developing partner products with Hypercon drug delivery technology ( Hypercon technology ) and developing the Surf Bio drug delivery technology to expand the breadth of our drug delivery technology portfolio. Hypercon technology is an innovative microparticle technology that has been demonstrated in non-clinical testing to enable hyperconcentration of drugs and biologics and reduce the injection volume for the same dosage, potentially expanding opportunities for at-home and health care provider administration. The Surf Bio hyperconcentration technology is being developed to create high antibody and biologic concentrations of up to 500 mg/mL, for delivery in a single auto-injector shot for at-home or in a health care provider’s office use.