HLIT SEC Filing News — Harmonic Inc.

Latest SEC filings for Harmonic Inc. (HLIT) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-15.

Harmonic Inc., together with its subsidiaries, provides broadband access solutions worldwide. The company provides software-based broadband access solution, including cOS software-based broadband access solutions to broadband operators, an end-to-end solution consisting of virtualized cloud-native software; hardware products include Oyster, Ripple and SeaStar DAA nodes; Reef and Wave PHY shelf products; pebble remote PHY Devices; and fin, pearl and pier OLT modules and devices; and cOS software-…
Sector: Technology Industry: Communication Equipment Market Cap: $1.2B CIK: 851310
20
Total Filings
0
Bullish Classifications
0
Bearish Classifications
15
Insider Transactions
4
Material Events (8-K)
1
Periodic Reports
What you're looking at: Each item below is parsed from an actual SEC filing submitted by Harmonic Inc.. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.
HLIT Filing Activity Snapshot 2026-05-19 — 2026-09-15
Insider Transactions (Form 4)
0 buys vs 0 sells
Insider buying and selling activity is balanced in this period.
Insider Transactions 15 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 15 filings in this group are Form 4s for Harmonic Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 15 insider filings shown, the breakdown is 13 option exercise and 2 compensation award. None of the classified filings involved a discretionary open-market trade, so this period says nothing about what insiders think of the price.

What each transaction type means

Option exercise ×13
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Compensation award ×2
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Form 4 Option exercise Tax / Compensation Filing 2026-09-15

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Jankovic Walter (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 1,457 — —
F Tax withholding on vested shares 732 $12.00 $8.8K
M Option exercise derivative · Restricted Stock Units 1,457 — —
Filing: Form 4 (Insider Transaction) Insider: Jankovic Walter (Chief Financial Officer) Shares: 2,189
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-09-15

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Ben-Natan Nimrod (Director, President and CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 20,032 — —
M Option exercise derivative · Restricted Stock Units 20,032 — —
Filing: Form 4 (Insider Transaction) Insider: Ben-Natan Nimrod (Director, President and CEO) Shares: 20,032
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-08-18

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Ben-Natan Nimrod (Director, President and CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 26,196 — —
M Option exercise derivative · Restricted Stock Units 6,726 — —
M Option exercise derivative · Restricted Stock Units 19,470 — —
Filing: Form 4 (Insider Transaction) Insider: Ben-Natan Nimrod (Director, President and CEO) Shares: 26,196
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-08-18

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Jankovic Walter (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 19,784 — —
F Tax withholding on vested shares 9,930 $13.92 $138.2K
M Option exercise derivative · Restricted Stock Units 3,217 — —
M Option exercise derivative · Restricted Stock Units 8,071 — —
M Option exercise derivative · Restricted Stock Units 8,496 — —
Filing: Form 4 (Insider Transaction) Insider: Jankovic Walter (Chief Financial Officer) Shares: 29,714
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-08-18

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Chu Timothy C (General Counsel & SVP, HR) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 9,876 — —
F Tax withholding on vested shares 3,475 $13.92 $48.4K
M Option exercise derivative · Restricted Stock Units 6,053 — —
M Option exercise derivative · Restricted Stock Units 3,823 — —
Filing: Form 4 (Insider Transaction) Insider: Chu Timothy C (General Counsel & SVP, HR) Shares: 13,351
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-08-18

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Glahn Ronald J (SVP, Global Sales, Broadband) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 4,038 — —
F Tax withholding on vested shares 1,111 $13.92 $15.5K
M Option exercise derivative · Restricted Stock Units 4,038 — —
Filing: Form 4 (Insider Transaction) Insider: Glahn Ronald J (SVP, Global Sales, Broadband) Shares: 5,149
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-08-12

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Chu Timothy C (General Counsel & SVP, HR) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · Restricted Stock Units 10,307 — —
Filing: Form 4 (Insider Transaction) Insider: Chu Timothy C (General Counsel & SVP, HR)
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-08-12

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Jankovic Walter (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award derivative · Restricted Stock Units 20,614 — —
Filing: Form 4 (Insider Transaction) Insider: Jankovic Walter (Chief Financial Officer)
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-07-17

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Glahn Ronald J (SVP, Global Sales, Broadband) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 3,750 — —
F Tax withholding on vested shares 1,031 $12.99 $13.4K
M Option exercise derivative · Restricted Stock Units 3,750 — —
Filing: Form 4 (Insider Transaction) Insider: Glahn Ronald J (SVP, Global Sales, Broadband) Shares: 4,781
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-06-22

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Haltmayer Neven (SVP & GM, Video Business) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 44,600 — —
F Tax withholding on vested shares 23,751 $14.80 $351.5K
M Option exercise derivative · Restricted Stock Units 8,777 — —
M Option exercise derivative · Restricted Stock Units 5,449 — —
M Option exercise derivative · Restricted Stock Units 19,329 — —
Filing: Form 4 (Insider Transaction) Insider: Haltmayer Neven (SVP & GM, Video Business) Shares: 68,351
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-06-15

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Jankovic Walter (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 1,457 — —
F Tax withholding on vested shares 732 $14.51 $10.6K
M Option exercise derivative · Restricted Stock Units 1,457 — —
Filing: Form 4 (Insider Transaction) Insider: Jankovic Walter (Chief Financial Officer) Shares: 2,189
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-06-15

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Ben-Natan Nimrod (Director, President and CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 20,032 — —
M Option exercise derivative · Restricted Stock Units 20,032 — —
Filing: Form 4 (Insider Transaction) Insider: Ben-Natan Nimrod (Director, President and CEO) Shares: 20,032
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-06-03

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Haltmayer Neven (SVP & GM, Video Business) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 2,725 — —
F Tax withholding on vested shares 1,452 $15.81 $23.0K
M Option exercise derivative · Restricted Stock Units 2,725 — —
Filing: Form 4 (Insider Transaction) Insider: Haltmayer Neven (SVP & GM, Video Business) Shares: 4,177
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-05-27

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Jankovic Walter (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 6,645 — —
F Tax withholding on vested shares 3,335 $15.20 $50.7K
M Option exercise derivative · Restricted Stock Units 6,645 — —
Filing: Form 4 (Insider Transaction) Insider: Jankovic Walter (Chief Financial Officer) Shares: 9,980
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-05-19

HLIT insider Form 4 filed for equity award, exercise, or tax withholding

Glahn Ronald J (SVP, Global Sales, Broadband) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 4,038 — —
F Tax withholding on vested shares 1,111 $12.54 $13.9K
M Option exercise derivative · Restricted Stock Units 4,038 — —
Filing: Form 4 (Insider Transaction) Insider: Glahn Ronald J (SVP, Global Sales, Broadband) Shares: 5,149
View on SEC EDGAR → Open Filing Document →
Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for Harmonic Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-12

HLIT filed 8-K — material company event

HARMONIC INC. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-06-17

HLIT filed 8-K — material company event

HARMONIC INC. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-06-08

HLIT filed 8-K — material company event

HARMONIC INC. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-06-05

HLIT filed 8-K — material company event

HARMONIC INC. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Harmonic Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-17

HLIT filed Quarterly Report (10-Q)

HARMONIC INC. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
View on SEC EDGAR → Open Filing Document →

How we classify Harmonic Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on HLIT. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — HLIT SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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