HALO ▼ -10.0% - Halozyme Therapeutics, Inc. $HALO HALO - U.S. FDA Approves RYBREVANT FASPRO™ (amivantamab and hyaluronidase-lpuj) Co-Formulated with Halozyme's ENHANZE® Technology for the Treatment of Advanced Head and Neck Cancer 06-NOV-2026 09:58 AM ET