Randal Kirk informed Halozyme Therapeutics Inc. of his unavailability to serve as a director due to his growing commitments outside of the company.

Due to this development, Kirk will not be nominated for re-election to the board at the upcoming stockholders' annual meeting.

San Diego, Calif.-based Halozyme Therapeutics is a biotechnology company which researches, develops, and commercializes human enzymes and other drug candidates in the U.S., Switzerland, and internationally.