SEC Form 4 · Updated Daily
HLIT
— HARMONIC INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Ben-Natan Nimrod | Director · Officer | 727,949 | 2026-08-15 | M |
| KRALL DAVID | Director | 239,268 | 2026-02-15 | M |
| Jankovic Walter | Officer | 166,114 | 2026-08-15 | F |
| Haltmayer Neven | Officer | 161,362 | 2026-06-16 | F |
| Chu Timothy C | Officer | 148,902 | 2026-08-15 | F |
| Glahn Ronald J | Officer | 44,463 | 2026-08-15 | F |
| Whalen Daniel T | Director | 29,983 | 2026-02-15 | M |
| Crandall Dana L | Director | 25,052 | 2026-02-15 | M |
| Copeland Stephanie | Director | 20,752 | 2026-05-14 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-08-15 | Glahn Ronald J | Option exercise (derivative) | 4,038 | $0.00 | 24,228 |
| 2026-08-15 | Glahn Ronald J | Tax withholding | 1,111 | $13.92 | 44,463 |
| 2026-08-15 | Glahn Ronald J | Option exercise | 4,038 | $0.00 | 45,574 |
| 2026-08-15 | Chu Timothy C | Option exercise (derivative) | 3,823 | $0.00 | 22,940 |
| 2026-08-15 | Chu Timothy C | Option exercise (derivative) | 6,053 | $0.00 | 12,107 |
| 2026-08-15 | Chu Timothy C | Tax withholding | 3,475 | $13.92 | 148,902 |
| 2026-08-15 | Chu Timothy C | Option exercise | 9,876 | $0.00 | 152,377 |
| 2026-08-15 | Jankovic Walter | Option exercise (derivative) | 8,496 | $0.00 | 50,977 |
| 2026-08-15 | Jankovic Walter | Option exercise (derivative) | 8,071 | $0.00 | 16,142 |
| 2026-08-15 | Jankovic Walter | Option exercise (derivative) | 3,217 | $0.00 | 3,218 |
| 2026-08-15 | Jankovic Walter | Tax withholding | 9,930 | $13.92 | 166,114 |
| 2026-08-15 | Jankovic Walter | Option exercise | 19,784 | $0.00 | 176,044 |
| 2026-08-15 | Ben-Natan Nimrod | Option exercise (derivative) | 19,470 | $0.00 | 116,822 |
| 2026-08-15 | Ben-Natan Nimrod | Option exercise (derivative) | 6,726 | $0.00 | 13,452 |
| 2026-08-15 | Ben-Natan Nimrod | Option exercise | 26,196 | $0.00 | 727,949 |
| 2026-08-10 | Jankovic Walter | Grant / award (derivative) | 20,614 | $0.00 | 20,614 |
| 2026-08-10 | Chu Timothy C | Grant / award (derivative) | 10,307 | $0.00 | 10,307 |
| 2026-07-15 | Glahn Ronald J | Option exercise (derivative) | 3,750 | $0.00 | 11,250 |
| 2026-07-15 | Glahn Ronald J | Tax withholding | 1,031 | $12.99 | 41,536 |
| 2026-07-15 | Glahn Ronald J | Option exercise | 3,750 | $0.00 | 42,567 |
| 2026-06-16 | Haltmayer Neven | Option exercise (derivative) | 8,777 | $0.00 | 0 |
| 2026-06-16 | Haltmayer Neven | Tax withholding | 23,751 | $14.80 | 161,362 |
| 2026-06-16 | Haltmayer Neven | Option exercise | 44,600 | $0.00 | 185,113 |
| 2026-06-11 | Ben-Natan Nimrod | Option exercise (derivative) | 20,032 | $0.00 | 80,128 |
| 2026-06-11 | Ben-Natan Nimrod | Option exercise | 20,032 | $0.00 | 701,753 |
| 2026-06-11 | Jankovic Walter | Option exercise (derivative) | 1,457 | $0.00 | 5,828 |
| 2026-06-11 | Jankovic Walter | Tax withholding | 732 | $14.51 | 156,260 |
| 2026-06-11 | Jankovic Walter | Option exercise | 1,457 | $0.00 | 156,992 |
| 2026-06-01 | Haltmayer Neven | Option exercise (derivative) | 2,725 | $0.00 | 10,897 |
| 2026-06-01 | Haltmayer Neven | Tax withholding | 1,452 | $15.81 | 140,513 |
| 2026-06-01 | Haltmayer Neven | Option exercise | 2,725 | $0.00 | 141,965 |
| 2026-05-22 | Jankovic Walter | Option exercise (derivative) | 6,645 | $0.00 | 0 |
| 2026-05-22 | Jankovic Walter | Tax withholding | 3,335 | $15.20 | 155,535 |
| 2026-05-22 | Jankovic Walter | Option exercise | 6,645 | $0.00 | 158,870 |
| 2026-05-15 | Ben-Natan Nimrod | Option exercise (derivative) | 19,470 | $0.00 | 136,292 |
| 2026-05-15 | Ben-Natan Nimrod | Option exercise (derivative) | 6,726 | $0.00 | 20,178 |
| 2026-05-15 | Ben-Natan Nimrod | Option exercise | 26,196 | $0.00 | 681,721 |
| 2026-05-15 | Haltmayer Neven | Option exercise (derivative) | 5,522 | $0.00 | 38,658 |
| 2026-05-15 | Haltmayer Neven | Option exercise (derivative) | 5,851 | $0.00 | 17,555 |
| 2026-05-15 | Haltmayer Neven | Tax withholding | 6,057 | $12.54 | 139,240 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.