Ronald J. Glahn - 15 Aug 2026 Form 4 Insider Report for HARMONIC INC. (HLIT)

Reporting relationship: SVP, Global Sales, Broadband
Issuer ticker: HLIT
Reported as of: 15 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Aug 2026, 17:55:33 UTC
Prior SEC filing: 17 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Wendi Ninh, Attorney-in-Fact

Key filing fact

Ronald J. Glahn filed Form 4 for HARMONIC INC. (HLIT) on 18 Aug 2026.

Key facts

This page summarizes Ronald J. Glahn's Form 4 filing for HARMONIC INC. (HLIT).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Aug 2026, 17:55.

Change

Previous filing in this sequence was filed on 17 Jul 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002110438 Primary reporting owner

Glahn Ronald J

Relationship: SVP, Global Sales, Broadband
Address: 2590 ORCHARD PARKWAY, SAN JOSE
Signature: /s/ Wendi Ninh, Attorney-in-Fact
Signature date: 18 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

HLIT transaction

Common Stock

Options Exercise

Transaction value
Shares: +4,038
Change %: +9.7%
Price: $0.000000^*
Shares after: 45,574
Date: 15 Aug 2026
Ownership: Direct

HLIT transaction

Common Stock

Tax liability

Transaction value
Shares: -1,111
Change %: -2.4%
Price: $13.92^*
Shares after: 44,463
Date: 15 Aug 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

HLIT transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -4,038
Change %: -14%
Price: $0.000000^*
Shares after: 24,228
Date: 15 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,038
Exercise price: $0.000000
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Each restricted stock unit represents a contingent right to receive one share of HLIT common stock.

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