CALIX, INC (CALX) Insider Trading & SEC Filings
Last SEC filing
CALIX, INC (CALX) has filed 10 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-28. Insider sales over the same period: 1 transactions worth $2.71M. 2 Form 8-K material event filings were reported by CALX in the last 90 days. 1 Form 144 notice of proposed sale was filed for CALX stock. InsiderAlpha tracks every CALX SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About CALIX, INC (CALX)
CALIX, INC trades under the ticker CALX. InsiderAlpha tracks 45 primary SEC Form 4 filings from 12 reporting insiders for CALX since 2024, sourced directly from SEC EDGAR.
| Sector | Communication Services insider trading |
|---|---|
| SIC classification | Communications Services, NEC (SIC 4899) |
| SEC CIK | 0001406666 |
90-Day SEC Filing Activity
| Insider sales (90d) | 1 ($2.71M) |
|---|---|
| Form 4 filings (90d) | 10 |
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-28 |
Recent CALX Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Carl Russo | Director | S - Open-market sale [10b5-1] | 75.0K | $36.20 | $2.71M | SEC | |
| Michael J. Berry | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Wade Oosterman | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Rajatish Mukherjee | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Kathleen M. Crusco | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Kevin Robert Peters | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Carl Russo | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Kira Makagon | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Christopher J. Bowick | Director | A - Grant or award | 5.0K | $0.00 | - | SEC | |
| Carl Russo | Director | S - Open-market sale [10b5-1] | 20.9K | $43.17 | $903K | SEC | |
| Carl Russo | Director | S - Open-market sale [10b5-1] | 4.1K | $43.75 | $179K | SEC | |
| Carl Russo | Director | G - Bona-fide gift | 40.0K | $0.00 | - | SEC | |
| Carl Russo | Director | M - Option exercise | 10.0K | $12.63 | $126K | SEC | |
| Cory Sindelar | Chief Financial Officer | A - Grant or award | 439 | $45.32 | $20K | SEC | |
| Michael Weening | President & CEO | A - Grant or award | 439 | $45.32 | $20K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for CALIX, INC (CALX). Updated in real time as new filings are submitted to the SEC.
Most-Active CALX Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Carl Russo | 3 | $2.71M |
| Kevin Robert Peters | 3 | - |
| Wade Oosterman | 1 | - |
| Kathleen M. Crusco | 1 | - |
| Christopher J. Bowick | 1 | - |
Recent CALX Form 8-K Material Events
- - Item 2.02, 9.01 [SEC]
- - Item 5.07 [SEC]
- - Item 2.02, 9.01 · Earnings · neutral [SEC]
Calix, Inc. announced its financial results for Q1 2026 (ended March 28, 2026) via a press release and stockholder letter on April 21, 2026. The filing presents standard quarterly financial results with non-GAAP reconciliations but contains no explicit beat/miss or guidance langu - - Item 8.01, 9.01 · Other · positive [SEC]
Calix's Board of Directors authorized an additional $100 million stock repurchase program on April 21, 2026, increasing the total authorization to $525 million. This signals management confidence in the company's valuation and financial position, though the timing and execution r
Recent CALX Form 144 Notices of Proposed Sale
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.
Recent Insider Filings
- - Carl Russo (Director)
- - Carl Russo (Director)
- - Christopher J. Bowick (Director)
- - Michael J. Berry (Director)
- - Rajatish Mukherjee (Director)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CALX 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 |
CALX Insider Trading - FAQ
- What is the latest insider trade for CALX?
- CALIX, INC (CALX) had 10 insider filings in the last 90 days, with the most recent on 2026-07-28. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying CALX stock?
- 0 insider purchases of CALX were filed in the last 90 days.
- How many insiders are selling CALX stock?
- 1 insider sale of CALX was filed in the last 90 days, totaling $2.71M.
- Where can I see CALX SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks CALX Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live CALX dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.