Exhibit 99.1 FOR IMMEDIATE RELEASE Harmonic Announces Third Quarter 2026 Results Revenue increased 64% year over year to $148.8 million, well above the high end of guidance Rest-of-Market revenue more than doubled year over year to a record 46% of total revenue Company raises full-year 2026 revenue outlook to $545 million - $555 million SAN JOSE, California, November 2, 2026 - Harmonic Inc. (Nasdaq: HLIT) today announced its unaudited results for the third quarter ended October 2, 2026. "Our accelerating mo ...