Exhibit 99.1 Infinera Corporation Reports Preliminary First Quarter 2024 Financial Results San Jose, Calif., May 14, 2024 - Infinera Corporation (NASDAQ: INFN) today released preliminary financial results for its first quarter ended March 30, 2024. Although presented with numerical specificity, all amounts in this press release are preliminary and based on management’s current expectations as of the date of this press release. These results are subject to all aspects of the final quarterly review process an ...