← United States · Coverage record
US · SEC FORM 4
HARMONIC INC.
HLIT · Nasdaq · CIK 0000851310 · Technology · Communication Equipment
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
32 Form 4 transaction lines observed in the same window
2 sales · 30 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
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Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-12-11 · KRALL DAVID.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 6,818,056
- Previous report
- 6,311,693
- Avg daily volume
- 1,533,919
- Days to cover
- 4.4
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-12-11 | KRALL DAVID | Purchase (P) | Common Stock | 47,528 | USD 10.50 | USD 499,044 | SEC filing ↗ |
| 2025-08-01 | Whalen Daniel T | Purchase (P) | Common Stock | 2,000 | USD 8.25 | USD 16,500 | SEC filing ↗ |
| 2025-05-30 | Whalen Daniel T | Purchase (P) | Common Stock | 2,000 | USD 8.99 | USD 17,980 | SEC filing ↗ |
| 2025-02-25 | Whalen Daniel T | Purchase (P) | Common Stock | 1,000 | USD 9.99 | USD 9,990 | SEC filing ↗ |
| 2025-02-24 | Whalen Daniel T | Purchase (P) | Common Stock | 3,000 | USD 10.15 | USD 30,460 | SEC filing ↗ |
| 2025-02-13 | KRALL DAVID | Purchase (P) | Common Stock | 10,000 | USD 9.78 | USD 97,800 | SEC filing ↗ |
| 2025-02-13 | Ben-Natan Nimrod | Purchase (P) | Common Stock | 7,780 | USD 9.65 | USD 75,063 | SEC filing ↗ |
| 2025-02-12 | Jankovic Walter | Purchase (P) | Common Stock | 12,000 | USD 9.44 | USD 113,280 | SEC filing ↗ |
| 2020-09-02 | KRALL DAVID | Purchase (P) | Common Stock | 10,000 | USD 5.94 | USD 59,400 | SEC filing ↗ |
| 2020-09-01 | KRALL DAVID | Purchase (P) | Common Stock | 10,000 | USD 5.88 | USD 58,800 | SEC filing ↗ |
Form 4 evidence
72 transaction lines in the latest 365-day window; 541 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-11 | Jankovic Walter | Option exercise / conversion (M) | Common Stock | 1,457 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-11 | Jankovic Walter | Tax withholding (F) | Common Stock | 732 | USD 12.00 | USD 8,784 | SEC filing ↗ |
| 2026-09-11 | Ben-Natan Nimrod | Option exercise / conversion (M) | Common Stock | 20,032 | USD 0.00 | USD 0 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-11 | Jankovic Walter | Option exercise / conversion (M) | Common Stock | 1,457 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-11 | Jankovic Walter | Tax withholding (F) | Common Stock | 732 | USD 12.00 | USD 8,784 | SEC filing ↗ |
| 2026-09-11 | Ben-Natan Nimrod | Option exercise / conversion (M) | Common Stock | 20,032 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-15 | Jankovic Walter | Option exercise / conversion (M) | Common Stock | 19,784 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-15 | Jankovic Walter | Tax withholding (F) | Common Stock | 9,930 | USD 13.92 | USD 138,226 | SEC filing ↗ |
| 2026-08-15 | Glahn Ronald J | Option exercise / conversion (M) | Common Stock | 4,038 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-15 | Glahn Ronald J | Tax withholding (F) | Common Stock | 1,111 | USD 13.92 | USD 15,465 | SEC filing ↗ |
| 2026-08-15 | Chu Timothy C | Option exercise / conversion (M) | Common Stock | 9,876 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-15 | Chu Timothy C | Tax withholding (F) | Common Stock | 3,475 | USD 13.92 | USD 48,372 | SEC filing ↗ |
| 2026-08-15 | Ben-Natan Nimrod | Option exercise / conversion (M) | Common Stock | 26,196 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-15 | Glahn Ronald J | Option exercise / conversion (M) | Common Stock | 3,750 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-15 | Glahn Ronald J | Tax withholding (F) | Common Stock | 1,031 | USD 12.99 | USD 13,393 | SEC filing ↗ |
| 2026-06-16 | Haltmayer Neven | Option exercise / conversion (M) | Common Stock | 44,600 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-16 | Haltmayer Neven | Tax withholding (F) | Common Stock | 23,751 | USD 14.80 | USD 351,515 | SEC filing ↗ |
| 2026-06-11 | Jankovic Walter | Option exercise / conversion (M) | Common Stock | 1,457 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-11 | Jankovic Walter | Tax withholding (F) | Common Stock | 732 | USD 14.51 | USD 10,621 | SEC filing ↗ |
| 2026-06-11 | Ben-Natan Nimrod | Option exercise / conversion (M) | Common Stock | 20,032 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-01 | Haltmayer Neven | Option exercise / conversion (M) | Common Stock | 2,725 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-01 | Haltmayer Neven | Tax withholding (F) | Common Stock | 1,452 | USD 15.81 | USD 22,956 | SEC filing ↗ |
| 2026-05-22 | Jankovic Walter | Option exercise / conversion (M) | Common Stock | 6,645 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-22 | Jankovic Walter | Tax withholding (F) | Common Stock | 3,335 | USD 15.20 | USD 50,692 | SEC filing ↗ |
| 2026-05-15 | Jankovic Walter | Option exercise / conversion (M) | Common Stock | 19,785 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-15 | Jankovic Walter | Tax withholding (F) | Common Stock | 9,099 | USD 12.54 | USD 114,101 | SEC filing ↗ |
| 2026-05-15 | Haltmayer Neven | Option exercise / conversion (M) | Common Stock | 11,373 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-15 | Haltmayer Neven | Tax withholding (F) | Common Stock | 6,057 | USD 12.54 | USD 75,955 | SEC filing ↗ |
| 2026-05-15 | Glahn Ronald J | Option exercise / conversion (M) | Common Stock | 4,038 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-15 | Glahn Ronald J | Tax withholding (F) | Common Stock | 1,111 | USD 12.54 | USD 13,932 | SEC filing ↗ |
| 2026-05-15 | Chu Timothy C | Option exercise / conversion (M) | Common Stock | 9,876 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-15 | Chu Timothy C | Tax withholding (F) | Common Stock | 3,475 | USD 12.54 | USD 43,576 | SEC filing ↗ |
| 2026-05-15 | Ben-Natan Nimrod | Option exercise / conversion (M) | Common Stock | 26,196 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | HLIT |
| CIK | 0000851310 |
| Sector | Technology |
| Industry | Communication Equipment Yahoo Finance |
| SEC SIC | 3663 Radio & Tv Broadcasting & Communications Equipment |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 541 transaction lines from 2020-02-04 to 2026-09-11 15 P purchase lines · 66 S sale lines · 460 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.