0000851310 2026-06-04 2026-06-04 0000851310 false 8-K 2026-06-04 HARMONIC INC. DE 000-25826 77-0201147 2590 Orchard Parkway San Jose CA 95131 408 542-2500 false false false false Common Stock, par value $0.001 per share HLIT NASDAQ false