CALX (CALIX, INC.)
Insider Trading Activity
Every open-market purchase and sale reported by CALX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-28 | Carl Russo | Director | Sell | — | — |
| 2026-05-18 | CHRISTOPHER J BOWICK | Director | A | — | — |
| 2026-05-18 | Wade Oosterman | Director | A | — | — |
| 2026-05-18 | Rajatish Mukherjee | Director | A | — | — |
| 2026-05-18 | Kevin Robert Peters | Director | MIXED | — | — |
| 2026-05-18 | MICHAEL J BERRY | Director | A | — | — |
| 2026-05-18 | KATHLEEN M CRUSCO | Director | A | — | — |
| 2026-05-18 | Kira Makagon | Director | A | — | — |
| 2026-05-18 | Carl Russo | Director | A | — | — |
| 2026-04-28 | Carl Russo | Director | Sell | — | — |
| 2026-04-10 | Carl Russo | Director | G | — | — |
| 2026-02-26 | Carl Russo | Director | M | — | — |
| 2026-02-17 | John Durocher | COO | A | — | — |
| 2026-02-17 | Shane Todd Marshall Eleniak | Chief Product Officer | A | — | — |
| 2026-02-17 | CORY SINDELAR | Chief Financial Officer | A | — | — |
| 2026-02-17 | Michael Weening | President & CEO | A | — | — |
| 2026-02-04 | Carl Russo | Director | Sell | — | — |
| 2026-02-03 | CORY SINDELAR | Chief Financial Officer | M | — | — |
| 2026-01-08 | Carl Russo | Director | M | — | — |
| 2026-01-05 | Carl Russo | Director | A | — | — |
| 2025-11-25 | Carl Russo | Director | M | — | — |
| 2025-11-18 | Carl Russo | Director | M | — | — |
| 2025-11-12 | Shane Todd Marshall Eleniak | Chief Product Officer | MIXED | — | — |
| 2025-11-12 | CORY SINDELAR | Chief Financial Officer | MIXED | — | — |
| 2025-11-06 | Carl Russo | Director | MIXED | — | — |
| 2025-11-06 | Shane Todd Marshall Eleniak | Chief Product Officer | MIXED | — | — |
| 2025-11-03 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-11-03 | CORY SINDELAR | Chief Financial Officer | MIXED | — | — |
| 2025-10-01 | Carl Russo | Director | A | — | — |
| 2025-09-11 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-09-08 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-09-02 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-08-29 | CORY SINDELAR | Chief Financial Officer | MIXED | — | — |
| 2025-08-15 | CORY SINDELAR | Chief Financial Officer | A | — | — |
| 2025-08-15 | Michael Weening | President & CEO | A | — | — |
| 2025-08-05 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-07-29 | Carl Russo | Director | Sell | — | — |
| 2025-07-24 | CORY SINDELAR | Chief Financial Officer | MIXED | — | — |
| 2025-07-24 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-07-16 | Carl Russo | Director | A | — | — |
| 2025-07-01 | CORY SINDELAR | Chief Financial Officer | MIXED | — | — |
| 2025-06-03 | Michael Weening | President & CEO | MIXED | — | — |
| 2025-05-12 | Kevin Robert Peters | Director | A | — | — |
| 2025-05-12 | CHRISTOPHER J BOWICK | Director | A | — | — |
| 2025-05-12 | Wade Oosterman | Director | A | — | — |
| 2025-05-12 | KATHLEEN M CRUSCO | Director | A | — | — |
| 2025-05-12 | Rajatish Mukherjee | Director | A | — | — |
| 2025-05-12 | Carl Russo | Director | A | — | — |
| 2025-05-12 | Kira Makagon | Director | A | — | — |
| 2025-05-12 | MICHAEL J BERRY | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | President and CEO | 5,850,613 | — |
| — | Director | 5,527,225 | — |
| — | EVP & Chief Accounting Officer | 3,043,690 | — |
| — | Director | 2,528,189 | — |
| — | Director | 807,533 | — |
| — | Director | 196,779 | — |
| — | Executive VP and CFO | 195,719 | — |
| — | Director | 179,076 | — |
| — | SVP, North American Sales | 166,415 | — |
| — | Director | 130,717 | — |
| — | Director | 125,937 | — |
| — | Chief Financial Officer | 103,994 | — |
| — | SVP, Product Development | 97,054 | — |
| — | Director | 96,476 | — |
| — | Director | 83,900 | — |
| — | Director | 71,583 | — |
| — | Advisor to the CEO | 67,500 | — |
| — | Director | 64,361 | — |
| — | Director | 64,000 | — |
| — | Director | 61,766 | — |
| — | Director | 54,346 | — |
| — | SVP, Product Operations | 49,282 | — |
| — | Director | 43,931 | — |
| — | SVP, International Sales | 28,753 | — |
| — | Director | 18,834 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CALX quote page; the site-wide leaderboard is on the insider transactions hub.