HALO

Halozyme Therapeutics, Inc.

A San Diego biopharma company whose ENHANZE technology uses a naturally occurring enzyme to temporarily loosen the gel-like tissue under the skin, letting large-volume biologic medicines be injected in minutes instead of slowly dripped over hours. Its partners sell drugs built on this platform, such as DARZALEX FASPRO and HYQVIA, and it also makes auto-injector devices and its own products like XYOSTED. Co-founded in 1998 by Dr. Gregory Frost, the company's name blends "hyaluronidase" and "enzyme" — the very molecule its science revolves around.