Results of Operations and Financial Condition. On November 2, 2026, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the third quarter ended September 26, 2026. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

Other Events. On October 8, 2026, Calix, Inc. (the “Company”) issued a press release announcing that its board of directors increased the Company’s authorization to repurchase its common stock by an additional $100 million under the existing stock repurchase program. The press release is attached hereto as Exhibit 99.1 and incorporated herein by reference. Such information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not inc…

Results of Operations and Financial Condition. On July 20, 2026, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the second quarter ended June 27, 2026. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP ope…

Results of Operations and Financial Condition. On April 21, 2026, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the first quarter ended March 28, 2026. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP op…

Other Events. The Company maintains a repurchase program for its common stock. As of March 28, 2026, the remaining authorized balance under the program was $63.4 million. On April 21, 2026, the Board amended the stock repurchase program to authorize the repurchase of up to an additional $100 million of its common stock, bringing the total authorization under the program up to $525 million. Under the repurchase program, repurchases can be made from time to time using a variety of methods, whic…

Other Events. The Company maintains a repurchase program for its common stock. As of December 31, 2025, the remaining authorized balance under the program was $109.3 million. On January 27, 2026, the Board amended the stock repurchase program to authorize the repurchase of up to an additional $125 million of its common stock, bringing the total authorization under the program up to $425 million. Under the repurchase program, repurchases can be made from time to time using a variety of methods…

Results of Operations and Financial Condition. On January 28, 2026, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the fourth quarter ended December 31, 2025. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

COO — John Durocher: The filing discloses the internal promotion of an existing executive, John Durocher, from Chief Customer Officer to Chief Operating Officer.

Results of Operations and Financial Condition. On October 29, 2025, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the third quarter ended September 27, 2025. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

Results of Operations and Financial Condition. On July 21, 2025, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the second quarter ended June 28, 2025. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP ope…

Results of Operations and Financial Condition. On April 21, 2025, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the first quarter ended March 29, 2025. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP op…

Other Events. The Company maintains a repurchase program for its common stock. As of March 29, 2025, the remaining authorized balance under the program was $62.9 million. On April 18, 2025, the Board amended the stock repurchase program to authorize the repurchase of up to an additional $100 million of its common stock, bringing the total authorization under the program up to $300 million. Under the repurchase program, repurchases can be made from time to time using a variety of methods, whic…

Director — Michael Berry: This is a routine board succession where a director's term expired and a new director was nominated to fill the vacancy, with no indication of disagreement or executive management loss.

Results of Operations and Financial Condition. On January 29, 2025, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the fourth quarter ended December 31, 2024. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

Results of Operations and Financial Condition. On October 28, 2024, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the third quarter ended September 28, 2024. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

Director — Wade Oosterman: The filing discloses the appointment of a new director to a newly created seat, which is a routine board composition change rather than an executive departure.

Results of Operations and Financial Condition. On July 22, 2024, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the second quarter ended June 29, 2024. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP ope…

Results of Operations and Financial Condition. On April 22, 2024, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the first quarter ended March 30, 2024. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP op…

Results of Operations and Financial Condition. In February 2024, after it reported earnings, Calix, Inc. (the “Company”) reached an agreement to settle litigation. As the underlying matter originated in a prior period, the Company determined that this event met the definition of a recognized subsequent event in accordance with FASB ASC 855 Subsequent Events and has therefore recorded a $3.2 million litigation accrual in the Company’s December 31, 2023 consolidated financial statements, which…

Results of Operations and Financial Condition. On January 29, 2024, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the fourth quarter ended December 31, 2023. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

Results of Operations and Financial Condition. On October 23, 2023, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the third quarter ended September 30, 2023. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-G…

Results of Operations and Financial Condition. On July 19, 2023, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the second quarter ended July 1, 2023. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP oper…

Other Events. As previously disclosed, on July 15, 2022, the Board authorized a one-year stock repurchase program for up to $100 million of the Company’s common stock. On May 11, 2023, the Board amended the repurchase program to remove the one-year end date. Under the repurchase program, repurchases can be made from time to time using a variety of methods, which may include open market purchases, privately negotiated transactions or otherwise, all in accordance with the rules of the SEC and o…

Director — Michael Weening: The filing discloses the appointment of the sitting CEO to the Board of Directors, which is a routine governance action and not a departure.

Results of Operations and Financial Condition. On April 19, 2023, Calix, Inc. (the “Company”) issued a press release announcing it has publicly disseminated a stockholder letter with its financial results for the first quarter ended April 1, 2023. The press release is attached hereto as Exhibit 99.1. The stockholder letter, a copy of which is attached hereto as Exhibit 99.2 and incorporated herein by reference, includes reference to the non-GAAP measures of non-GAAP gross margin, non-GAAP ope…