Company: CALX
Filing Date: 2025-03-27
Form Type: DEF 14A
Source: 0001406666-25-000011
Chunk: 157

Company: CALIX, INC
Filing Date: 2025-03-27
Form: DEF 14A
Chunk 157
---
 for “nonqualified deferred compensation” within the meaning of Section 409A of the Code and the Department of Treasury regulations and other interpretive guidance issued thereunder, including without limitation any such regulations or other guidance issued after the Effective Date (together, “ Section 409A ”). Notwithstanding any provision of the Plan to the contrary, if the Administrator determines that any rights under the Plan may be or become subject to Section 409A of the Code, the Administrator may adopt such amendments to the Plan and/or adopt other policies and procedures (including amendments, policies and procedures with retroactive effect), or take any other actions as the Administrator determines are necessary or appropriate to avoid the imposition of taxes under Section 409A of the Code, either through compliance with the requirements of Section 409A of the Code or with an available exemption therefrom.

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8</div>

#### Appendix C

#### CALIX, INC.

### RECONCILIATION OF GAAP TO NON-GAAP MEASURES
<div align='center'>(UNAUDITED)

Reconciliation of GAAP Net Operating Loss to Non-GAAP Net Operating Income (In Thousands)</div>

|                                                                                             |     | 2024 | First Quarter |     |   | Second Quarter |     |   | Third Quarter |     |   | Fourth Quarter |
|:--------------------------------------------------------------------------------------------|:----|:-----|--------------:|:----|:--|---------------:|:----|:--|--------------:|:----|:--|---------------:|
| GAAP net operating income (loss)                                                            |     | $    |        -2,032 |     | $ |        -11,356 |     | $ |       -10,896 |     | $ |        -18,750 |
| Adjustments to reconcile GAAP net operating income (loss) to non-GAAP net operating income: |     |      |               |     |   |                |     |   |               |     |   |                |
| Stock-based compensation                                                                    |     |      |        16,856 |     |   |         15,458 |     |   |        16,371 |     |   |         22,075 |
| Intangible asset amortization                                                               |     |      |           956 |     |   |            956 |     |   |           604 |     |   |            298 |
| Non-GAAP operating income                                                                   |