Updated Jul 16, 2026 · Last SEC filing 2026-06-22
HARMONIC INC. (HLIT) has filed 13 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-22. 4 Form 8-K material event filings were reported by HLIT in the last 90 days. 2 Form 144 notices of proposed sale were filed for HLIT stock. InsiderAlpha tracks every HLIT SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000851310 |
|---|
| Form 4 filings (90d) | 13 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-06-22 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Haltmayer Neven | SVP & GM, Video Business | M — Option exercise | 44.6K | $0.00 | — | SEC | |
| Haltmayer Neven | SVP & GM, Video Business | F — Tax withholding / forfeiture | 23.8K | $14.80 | $352K | SEC | |
| Jankovic Walter | Chief Financial Officer | M — Option exercise | 1.5K | $0.00 | — | SEC | |
| Jankovic Walter | Chief Financial Officer | F — Tax withholding / forfeiture | 732 | $14.51 | $11K | SEC | |
| Ben-Natan Nimrod | President and CEO | M — Option exercise | 20.0K | $0.00 | — | SEC | |
| Haltmayer Neven | SVP & GM, Video Business | F — Tax withholding / forfeiture | 1.5K | $15.81 | $23K | SEC | |
| Haltmayer Neven | SVP & GM, Video Business | M — Option exercise | 2.7K | $0.00 | — | SEC | |
| Jankovic Walter | Chief Financial Officer | F — Tax withholding / forfeiture | 3.3K | $15.20 | $51K | SEC | |
| Jankovic Walter | Chief Financial Officer | M — Option exercise | 6.6K | $0.00 | — | SEC | |
| Chu Timothy C | General Counsel & SVP, HR | F — Tax withholding / forfeiture | 3.5K | $12.54 | $44K | SEC | |
| Ben-Natan Nimrod | President and CEO | M — Option exercise | 26.2K | $0.00 | — | SEC | |
| Jankovic Walter | Chief Financial Officer | F — Tax withholding / forfeiture | 9.1K | $12.54 | $114K | SEC | |
| Haltmayer Neven | SVP & GM, Video Business | M — Option exercise | 11.4K | $0.00 | — | SEC | |
| Haltmayer Neven | SVP & GM, Video Business | F — Tax withholding / forfeiture | 6.1K | $12.54 | $76K | SEC | |
| Glahn Ronald J | SVP, Global Sales, Broadband | M — Option exercise | 4.0K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for HARMONIC INC. (HLIT). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Haltmayer Neven | 13 | $871K |
| Jankovic Walter | 11 | $175K |
| Glahn Ronald J | 6 | $24K |
| Ben-Natan Nimrod | 5 | — |
| Chu Timothy C | 4 | $44K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in HLIT insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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