Form4insider filings, from the source

Company · CIK 0000851310 · SIC 3663 — Radio & Tv Broadcasting & Communications Equipment · Nasdaq

HARMONIC INC. · HLIT

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 11, 2026 FMForm 4 →Sep 15, 4:46 pm EDTWalter JankovicChief Financial Officer2,189$12.00$8,784166,839—
Sep 11, 2026 MForm 4 →Sep 15, 4:29 pm EDTNimrod Ben-NatanPresident and CEO, Director20,032——747,981—
Aug 15, 2026 MForm 4 →Aug 18, 7:05 pm EDTNimrod Ben-NatanPresident and CEO, Director26,196——727,949—
Aug 15, 2026 FMForm 4 →Aug 18, 6:35 pm EDTWalter JankovicChief Financial Officer29,714$13.92$138,226166,114—
Aug 15, 2026 FMForm 4 →Aug 18, 6:10 pm EDTTimothy C ChuGeneral Counsel & SVP, HR13,351$13.92$48,372148,902—
Aug 15, 2026 FMForm 4 →Aug 18, 5:55 pm EDTRonald J GlahnSVP, Global Sales, Broadband5,149$13.92$15,46544,463—
Jul 15, 2026 FMForm 4 →Jul 17, 6:01 pm EDTRonald J GlahnSVP, Global Sales, Broadband4,781$12.99$13,39341,536—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 11, 2026 MForm 4 →Sep 15, 4:46 pm EDTWalter JankovicChief Financial Officer1,457——4,371—
Sep 11, 2026 MForm 4 →Sep 15, 4:29 pm EDTNimrod Ben-NatanPresident and CEO, Director20,032——60,096—
Aug 15, 2026 MForm 4 →Aug 18, 7:05 pm EDTNimrod Ben-NatanPresident and CEO, Director26,196——116,822—
Aug 15, 2026 MForm 4 →Aug 18, 6:35 pm EDTWalter JankovicChief Financial Officer19,784——50,977—
Aug 15, 2026 MForm 4 →Aug 18, 6:10 pm EDTTimothy C ChuGeneral Counsel & SVP, HR9,876——22,940—
Aug 15, 2026 MForm 4 →Aug 18, 5:55 pm EDTRonald J GlahnSVP, Global Sales, Broadband4,038——24,228—
Aug 10, 2026 AForm 4 →Aug 12, 5:37 pm EDTTimothy C ChuGeneral Counsel & SVP, HR10,307——10,307—
Aug 10, 2026 AForm 4 →Aug 12, 5:00 pm EDTWalter JankovicChief Financial Officer20,614——20,614—
Jul 15, 2026 MForm 4 →Jul 17, 6:01 pm EDTRonald J GlahnSVP, Global Sales, Broadband3,750——11,250—