Calix, Inc (CALX) · Insider trading
What Calix's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$59.38M
4 insiders, 86% under a plan
Net, 12 months
−$59.38M
bought less sold
Latest filing
2026-07-28
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Weening MichaelDirector, President & CEO | – | $58.00M | 13 | 2025-11-03 | 16,117 |
| Russo CarlDirector, 10% owner | – | $36.11M | 13 | 2026-07-27 | – |
| Sindelar CoryChief Financial Officer | – | $6.29M | 6 | 2025-11-06 | 76,555 |
| Eleniak Shane Todd MarshallChief Product Officer | – | $4.81M | 2 | 2025-11-10 | 0 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-27 | Russo CarlDirector, 10% owner | Saleplanindirect | 75,000 | 36.20 | $2.71M | 1,569,188 | Form 4 |
| 2026-04-27 | Russo CarlDirector, 10% owner | Saleplanindirect | 20,909 | 43.17 | $902,642 | 1,648,279 | Form 4 |
| 2026-04-27 | Russo CarlDirector, 10% owner | Saleplanindirect | 4,091 | 43.75 | $178,981 | 1,644,188 | Form 4 |
| 2026-02-03 | Russo CarlDirector, 10% owner | Saleplanindirect | 13,477 | 46.93 | $632,476 | 1,680,711 | Form 4 |
| 2026-02-03 | Russo CarlDirector, 10% owner | Saleplanindirect | 11,523 | 47.66 | $549,186 | 1,669,188 | Form 4 |
| 2025-11-10 | Eleniak Shane Todd MarshallChief Product Officer | Sale | 24,000 | 64.14 | $1.54M | 0 | Form 4 |
| 2025-11-06 | Sindelar CoryChief Financial Officer | Sale | 50,000 | 65.30 | $3.27M | 76,555 | Form 4 |
| 2025-11-04 | Russo CarlDirector, 10% owner | Saleplanindirect | 395,000 | 64.00 | $25.28M | 1,719,188 | Form 4 |
| 2025-11-04 | Russo CarlDirector, 10% owner | Saleplanindirect | 12,035 | 65.11 | $783,599 | 1,707,153 | Form 4 |
| 2025-11-04 | Russo CarlDirector, 10% owner | Saleplanindirect | 12,845 | 66.00 | $847,770 | 1,694,308 | Form 4 |
| 2025-11-04 | Russo CarlDirector, 10% owner | Saleplanindirect | 120 | 66.47 | $7,976 | 1,694,188 | Form 4 |
| 2025-11-04 | Eleniak Shane Todd MarshallChief Product Officer | Sale | 50,000 | 65.34 | $3.27M | 0 | Form 4 |
| 2025-11-03 | Weening MichaelDirector, President & CEO | Saleplan | 74,000 | 67.42 | $4.99M | 16,117 | Form 4 |
| 2025-10-31 | Sindelar CoryChief Financial Officer | Saleplan | 10,000 | 70.00 | $700,000 | 76,555 | Form 4 |
| 2025-10-30 | Sindelar CoryChief Financial Officer | Saleplan | 10,000 | 65.00 | $650,000 | 76,555 | Form 4 |
| 2025-10-30 | Weening MichaelDirector, President & CEO | Saleplan | 150,000 | 64.63 | $9.69M | 66,117 | Form 4 |
| 2025-10-30 | Weening MichaelDirector, President & CEO | Saleplan | 50,000 | 67.55 | $3.38M | 16,117 | Form 4 |
| 2025-09-11 | Weening MichaelDirector, President & CEO | Saleplan | 18,010 | 63.00 | $1.13M | 16,117 | Form 4 |
| 2025-09-10 | Weening MichaelDirector, President & CEO | Saleplan | 150,000 | 62.00 | $9.30M | 16,117 | Form 4 |
| 2025-09-10 | Weening MichaelDirector, President & CEO | Saleplan | 7,990 | 63.00 | $503,370 | 16,117 | Form 4 |
| 2025-09-04 | Weening MichaelDirector, President & CEO | Saleplan | 24,000 | 60.00 | $1.44M | 16,117 | Form 4 |
| 2025-08-28 | Weening MichaelDirector, President & CEO | Saleplan | 126,000 | 60.00 | $7.56M | 16,117 | Form 4 |
| 2025-08-28 | Sindelar CoryChief Financial Officer | Saleplan | 10,000 | 60.00 | $600,000 | 76,555 | Form 4 |
| 2025-08-04 | Weening MichaelDirector, President & CEO | Saleplan | 74,000 | 57.00 | $4.22M | 15,812 | Form 4 |
| 2025-07-28 | Russo CarlDirector, 10% owner | Saleplanindirect | 25,000 | 55.40 | $1.39M | 2,114,188 | Form 4 |
| 2025-07-23 | Sindelar CoryChief Financial Officer | Saleplan | 10,000 | 56.00 | $560,000 | 76,285 | Form 4 |
| 2025-07-23 | Weening MichaelDirector, President & CEO | Saleplan | 92,000 | 56.00 | $5.15M | 15,812 | Form 4 |
| 2025-07-23 | Weening MichaelDirector, President & CEO | Saleplan | 16,000 | 57.00 | $912,000 | 15,812 | Form 4 |
| 2025-07-22 | Weening MichaelDirector, President & CEO | Saleplan | 92,000 | 55.00 | $5.06M | 15,812 | Form 4 |
| 2025-06-30 | Sindelar CoryChief Financial Officer | Saleplan | 10,000 | 52.00 | $520,000 | 76,285 | Form 4 |
| 2025-06-02 | Weening MichaelDirector, President & CEO | Saleplan | 100,000 | 46.59 | $4.66M | 15,812 | Form 4 |
| 2025-04-28 | Russo CarlDirector, 10% owner | Saleplanindirect | 25,000 | 39.59 | $989,750 | 2,139,188 | Form 4 |
| 2025-02-27 | Russo CarlDirector, 10% owner | Saleplanindirect | 25,000 | 38.15 | $953,750 | 2,164,188 | Form 4 |
| 2024-11-04 | Russo CarlDirector, 10% owner | Saleplanindirect | 25,000 | 35.42 | $885,500 | 2,189,188 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
27 × option exercise23 × grant or award1 × gift
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-05-14 | Bowick Christopher JDirector | Grant or award A | +4,967 | – | 71,583 | Form 4 |
| 2026-05-14 | Crusco Kathleen MDirector | Grant or award A | +4,967 | – | 64,361 | Form 4 |
| 2026-05-14 | Berry Michael JDirector | Grant or award A | +4,967 | – | 9,656 | Form 4 |
| 2026-05-14 | Russo CarlDirector, 10% owner | Grant or award A | +4,967 | – | 3,958,037 | Form 4 |
| 2026-05-14 | Makagon KiraDirector | Grant or award A | +4,967 | – | 43,931 | Form 4 |
| 2026-05-14 | Oosterman WadeDirector | Grant or award A | +4,967 | – | 12,156 | Form 4 |
| 2026-05-14 | Peters Kevin RobertDirector | Grant or award A | +4,967 | – | 9,656 | Form 4 |
| 2026-05-14 | Mukherjee RajatishDirector | Grant or award A | +4,967 | – | 9,656 | Form 4 |
| 2026-04-08 | Russo CarlDirector, 10% owner | Gift G | −40,000 | – | 3,953,070 | Form 4 |
| 2026-02-25 | Russo CarlDirector, 10% owner | Option exercise M | +10,000 | 12.63 | 3,993,070 | Form 4 |
| 2026-02-14 | Sindelar CoryChief Financial Officer | Grant or award A | +439 | 45.32 | 103,994 | Form 4 |
| 2026-02-14 | Weening MichaelDirector, President & CEO | Grant or award A | +439 | 45.32 | 16,556 | Form 4 |
| 2026-02-14 | Durocher JohnCOO | Grant or award A | +439 | 45.32 | 2,367 | Form 4 |
| 2026-02-02 | Sindelar CoryChief Financial Officer | Option exercise M | +27,000 | 5.05 | 103,555 | Form 4 |
| 2026-01-07 | Russo CarlDirector, 10% owner | Option exercise M | +10,000 | 12.63 | 3,983,070 | Form 4 |
| 2025-11-24 | Russo CarlDirector, 10% owner | Option exercise M | +10,000 | 12.63 | 3,973,070 | Form 4 |
| 2025-11-17 | Russo CarlDirector, 10% owner | Option exercise M | +10,000 | 12.63 | 3,963,070 | Form 4 |
| 2025-11-10 | Eleniak Shane Todd MarshallChief Product Officer | Option exercise M | +24,000 | 8.03 | 24,000 | Form 4 |
| 2025-11-06 | Sindelar CoryChief Financial Officer | Option exercise M | +50,000 | 5.05 | 126,555 | Form 4 |
| 2025-11-06 | Russo CarlDirector, 10% owner | Option exercise M | +200,000 | 12.63 | 3,953,070 | Form 4 |
| 2025-11-04 | Eleniak Shane Todd MarshallChief Product Officer | Option exercise M | +50,000 | 7.00 | 50,000 | Form 4 |
| 2025-11-03 | Weening MichaelDirector, President & CEO | Option exercise M | +74,000 | 7.84 | 90,117 | Form 4 |
| 2025-10-31 | Sindelar CoryChief Financial Officer | Option exercise M | +10,000 | 5.05 | 86,555 | Form 4 |
| 2025-10-30 | Sindelar CoryChief Financial Officer | Option exercise M | +10,000 | 5.05 | 86,555 | Form 4 |
| 2025-10-30 | Weening MichaelDirector, President & CEO | Option exercise M | +200,000 | 7.84 | 216,117 | Form 4 |
| 2025-09-11 | Weening MichaelDirector, President & CEO | Option exercise M | +18,010 | 7.84 | 34,127 | Form 4 |
| 2025-09-10 | Weening MichaelDirector, President & CEO | Option exercise M | +150,000 | 7.84 | 166,117 | Form 4 |
| 2025-09-10 | Weening MichaelDirector, President & CEO | Option exercise M | +7,990 | 7.84 | 24,107 | Form 4 |
| 2025-09-04 | Weening MichaelDirector, President & CEO | Option exercise M | +24,000 | 7.84 | 40,117 | Form 4 |
| 2025-08-28 | Weening MichaelDirector, President & CEO | Option exercise M | +126,000 | 7.84 | 142,117 | Form 4 |
| 2025-08-28 | Sindelar CoryChief Financial Officer | Option exercise M | +10,000 | 5.05 | 86,555 | Form 4 |
| 2025-08-14 | Sindelar CoryChief Financial Officer | Grant or award A | +270 | 33.69 | 76,555 | Form 4 |
| 2025-08-14 | Weening MichaelDirector, President & CEO | Grant or award A | +305 | 33.69 | 16,117 | Form 4 |
| 2025-08-04 | Weening MichaelDirector, President & CEO | Option exercise M | +74,000 | 8.03 | 89,812 | Form 4 |
| 2025-07-23 | Sindelar CoryChief Financial Officer | Option exercise M | +10,000 | 5.05 | 86,285 | Form 4 |
| 2025-07-23 | Weening MichaelDirector, President & CEO | Option exercise M | +92,000 | 5.95 | 107,812 | Form 4 |
| 2025-07-23 | Weening MichaelDirector, President & CEO | Option exercise M | +16,000 | 8.03 | 31,812 | Form 4 |
| 2025-07-22 | Weening MichaelDirector, President & CEO | Option exercise M | +92,000 | 5.95 | 107,812 | Form 4 |
| 2025-06-30 | Sindelar CoryChief Financial Officer | Option exercise M | +10,000 | 5.05 | 86,285 | Form 4 |
| 2025-06-02 | Weening MichaelDirector, President & CEO | Option exercise M | +80,000 | 6.38 | 95,812 | Form 4 |
| 2025-06-02 | Weening MichaelDirector, President & CEO | Option exercise M | +20,000 | 5.95 | 115,812 | Form 4 |
| 2025-05-08 | Russo CarlDirector, 10% owner | Grant or award A | +4,689 | – | 3,753,070 | Form 4 |
| 2025-05-08 | Bowick Christopher JDirector | Grant or award A | +4,689 | – | 66,616 | Form 4 |
| 2025-05-08 | Peters Kevin RobertDirector | Grant or award A | +4,689 | – | 130,717 | Form 4 |
| 2025-05-08 | Makagon KiraDirector | Grant or award A | +4,689 | – | 38,964 | Form 4 |
| 2025-05-08 | Mukherjee RajatishDirector | Grant or award A | +4,689 | – | 4,689 | Form 4 |
| 2025-05-08 | Oosterman WadeDirector | Grant or award A | +4,689 | – | 7,189 | Form 4 |
| 2025-05-08 | Crusco Kathleen MDirector | Grant or award A | +4,689 | – | 59,394 | Form 4 |
| 2025-05-08 | Berry Michael JDirector | Grant or award A | +4,689 | – | 4,689 | Form 4 |
| 2025-02-14 | Sindelar CoryChief Financial Officer | Grant or award A | +387 | 31.37 | 76,285 | Form 4 |
| 2025-02-14 | Weening MichaelDirector, President & CEO | Grant or award A | +349 | 31.37 | 15,812 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.