CALIX, INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Russo Carl | — | Option Exercise | 10,000 | $12.63 | $126,300 | 3,973,070 | Nov 24, 2025 |
| Russo Carl | — | Option Exercise | 10,000 | $12.63 | $126,300 | 3,963,070 | Nov 17, 2025 |
| Eleniak Shane Todd Marshall | Chief Product Officer | Sale | 24,000 | $64.14 | $1,539,360 | — | Nov 10, 2025 |
| SINDELAR CORY | Chief Financial Officer | Sale | 50,000 | $65.30 | $3,265,000 | 76,555 | Nov 6, 2025 |
| Russo Carl | — | Sale | 12,845 | $66.00 | $847,770 | 1,694,308 | Nov 6, 2025 |
| Eleniak Shane Todd Marshall | Chief Product Officer | Sale | 50,000 | $65.34 | $3,267,000 | — | Nov 4, 2025 |
| SINDELAR CORY | Chief Financial Officer | Sale | 10,000 | $65.00 | $650,000 | 76,555 | Oct 31, 2025 |
| Weening Michael | President & CEO | Sale | 150,000 | $64.63 | $9,694,500 | 66,117 | Oct 30, 2025 |
| Weening Michael | President & CEO | Option Exercise | 7,990 | $7.84 | $62,642 | 24,107 | Sep 10, 2025 |
| Weening Michael | President & CEO | Sale | 24,000 | $60.00 | $1,440,000 | 16,117 | Sep 4, 2025 |
| Weening Michael | President & CEO | Option Exercise | 126,000 | $7.84 | $987,840 | 142,117 | Aug 28, 2025 |
| SINDELAR CORY | Chief Financial Officer | Option Exercise | 10,000 | $5.05 | $50,500 | 86,555 | Aug 28, 2025 |
| Weening Michael | President & CEO | Award / Grant | 305 | $33.69 | $10,275 | 16,117 | Aug 14, 2025 |
| SINDELAR CORY | Chief Financial Officer | Award / Grant | 270 | $33.69 | $9,096 | 76,555 | Aug 14, 2025 |
| Weening Michael | President & CEO | Option Exercise | 74,000 | $8.03 | $594,220 | 89,812 | Aug 4, 2025 |
| Russo Carl | — | Sale | 25,000 | $55.40 | $1,385,000 | 2,114,188 | Jul 28, 2025 |
| SINDELAR CORY | Chief Financial Officer | Option Exercise | 10,000 | $5.05 | $50,500 | 86,285 | Jul 23, 2025 |
| Weening Michael | President & CEO | Sale | 16,000 | $57.00 | $912,000 | 15,812 | Jul 22, 2025 |
| SINDELAR CORY | Chief Financial Officer | Sale | 10,000 | $52.00 | $520,000 | 76,285 | Jun 30, 2025 |
| Weening Michael | President & CEO | Sale | 100,000 | $46.59 | $4,659,000 | 15,812 | Jun 2, 2025 |
| BERRY MICHAEL J | — | Award / Grant | 4,689 | — | — | 4,689 | May 8, 2025 |
| CRUSCO KATHLEEN M | — | Award / Grant | 4,689 | — | — | 59,394 | May 8, 2025 |
| Oosterman Wade | — | Award / Grant | 4,689 | — | — | 7,189 | May 8, 2025 |
| Mukherjee Rajatish | — | Award / Grant | 4,689 | — | — | 4,689 | May 8, 2025 |
| Makagon Kira | — | Award / Grant | 4,689 | — | — | 38,964 | May 8, 2025 |
| Peters Kevin Robert | — | Award / Grant | 4,689 | — | — | 130,717 | May 8, 2025 |
| BOWICK CHRISTOPHER J | — | Award / Grant | 4,689 | — | — | 66,616 | May 8, 2025 |
| Russo Carl | — | Award / Grant | 4,689 | — | — | 3,753,070 | May 8, 2025 |
| Russo Carl | — | Sale | 25,000 | $39.59 | $989,750 | 2,139,188 | Apr 28, 2025 |
| Russo Carl | — | Sale | 25,000 | $38.15 | $953,750 | 2,164,188 | Feb 27, 2025 |
| Weening Michael | President & CEO | Award / Grant | 349 | $31.37 | $10,948 | 15,812 | Feb 14, 2025 |
| SINDELAR CORY | Chief Financial Officer | Award / Grant | 387 | $31.37 | $12,140 | 76,285 | Feb 14, 2025 |
| Russo Carl | — | Sale | 25,000 | $35.42 | $885,500 | 2,189,188 | Nov 4, 2024 |
| Weening Michael | President & CEO | Award / Grant | 1 | $29.60 | $30 | 15,463 | Aug 14, 2024 |
| Russo Carl | — | Sale | 1,280 | $38.14 | $48,819 | 3,723,381 | Aug 2, 2024 |
| SINDELAR CORY | Chief Financial Officer | Award / Grant | 611 | $29.48 | $18,012 | 75,898 | Feb 14, 2024 |
| Weening Michael | President & CEO | Award / Grant | 777 | $29.48 | $22,906 | 15,462 | Feb 14, 2024 |
| Russo Carl | — | Option Exercise | 120,000 | $8.18 | $981,600 | 3,748,381 | Jan 25, 2024 |
| Collins John Matthew | Chief Commercial Ops Officer | Option Exercise | 15,000 | $8.03 | $120,450 | 30,000 | Oct 27, 2023 |
| Weening Michael | President & CEO | Purchase | 341 | $34.98 | $11,928 | 14,685 | Aug 14, 2023 |
| LISTWIN DONALD J | — | Sale | 100,000 | $43.15 | $4,315,000 | 497,533 | Aug 4, 2023 |
| Collins John Matthew | Chief Commercial Ops Officer | Sale | 10,000 | $47.12 | $471,200 | — | Jul 25, 2023 |
| LISTWIN DONALD J | — | Option Exercise | 9,960 | $33.46 | $333,262 | 597,533 | May 17, 2023 |
| Collins John Matthew | Chief Commercial Ops Officer | Option Exercise | 5,000 | $6.95 | $34,750 | 5,000 | May 2, 2023 |
| LISTWIN DONALD J | — | Gift | 2,500 | — | — | 587,573 | Apr 24, 2023 |
| SINDELAR CORY | Chief Financial Officer | Award / Grant | 439 | $45.25 | $19,865 | 75,287 | Feb 14, 2023 |
| Weening Michael | President & CEO | Award / Grant | 199 | $45.25 | $9,005 | 14,344 | Feb 14, 2023 |
| Collins John Matthew | Chief Commercial Ops Officer | Option Exercise | 5,000 | $6.95 | $34,750 | 5,000 | Feb 3, 2023 |
| LISTWIN DONALD J | — | Gift | 9,000 | — | — | 590,073 | Jan 31, 2023 |
| Russo Carl | Chairman | Option Exercise | 200,000 | $8.41 | $1,682,000 | 3,628,381 | Jan 30, 2023 |