As of the latest Form 4 filed May 18, 2026.
What Calix Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 21 most recent filings for CALX.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-18 | 2026-05-14 | Mukherjee Rajatish Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | Peters Kevin Robert Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | Oosterman Wade Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | Makagon Kira Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | Russo Carl Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | BERRY MICHAEL J Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | CRUSCO KATHLEEN M Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2026-05-14 | BOWICK CHRISTOPHER J Director | AAward | +4.97K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2022-02-01 | Peters Kevin Robert Director | GGift | +126K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-18 | 2022-02-01 | Peters Kevin Robert, Director | GGift | −126K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-28 | 2026-04-27 | Russo Carl Director | SSale | −4.09K | $43.75 | $179K | Yes (planned) | Form 4 ↗ |
| 2026-04-28 | 2026-04-27 | Russo Carl, Director | SSale | −20.9K | $43.17 | $903K | Yes (planned) | Form 4 ↗ |
| 2026-04-10 | 2026-04-08 | Russo Carl Director | GGift | −40.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Russo Carl Director | MExercise | +10.0K | $12.63 | $126K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-14 | Durocher John COO | AAward | +439.00 | $45.32 | $19.9K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-14 | Weening Michael President & CEO | AAward | +439.00 | $45.32 | $19.9K | No | Form 4 ↗ |
| 2026-02-17 | 2026-02-14 | SINDELAR CORY Chief Financial Officer | AAward | +439.00 | $45.32 | $19.9K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-03 | Russo Carl Director | SSale | −11.5K | $47.66 | $549K | Yes (planned) | Form 4 ↗ |
| 2026-02-04 | 2026-02-03 | Russo Carl, Director | SSale | −13.5K | $46.93 | $633K | Yes (planned) | Form 4 ↗ |
| 2026-02-03 | 2026-02-02 | SINDELAR CORY Chief Financial Officer | MExercise | +27.0K | $5.05 | $136K | No | Form 4 ↗ |
| 2026-01-08 | 2026-01-07 | Russo Carl Director | MExercise | +10.0K | $12.63 | $126K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also CALX’s full analysis or the market-wide insider trading feed. The tabs above jump to CALX’s other SEC data.
Source: SEC Form 4 filings for CALX, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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