On July 27, 2023, the board of directors of Casa Systems, Inc. appointed Michael Glickman to fill the vacant position on the board, effective August 1, 2023. Mr. Glickman was designated as a Class I director in accordance with the Company?s Amended and Restated Bylaws to serve until the Company?s 2024 Annual Meeting of Stockholders and thereafter until his successor has been duly elected and qualified, or until his earlier death, resignation or removal. The board reclassified one seat of the membership of the Board?s three director classes in order to achieve a more equal apportionment of the membership among the three director classes.

Accordingly, Mr. Glickman?s membership is as a Class I Director (with a term expiring at the Company?s 2024 Annual Meeting) instead of a Class III Director (with a term expiring at the Company?s 2026 Annual Meeting). The Board determined that Mr. Glickman is not independent as contemplated by The Nasdaq Listing Rules, as he will also serve as the chief executive officer of the company. Mr. Glickman, age 59, most recently served as the President of PacketFabric beginning December 2020, where he drove large strategic partnerships and innovative joint ventures, as well as led customer engagement, from sales to customer operations and support.

Prior to that, Mr. Glickman held senior executive positions at Cisco from April 1999 to December 2020, including Senior Vice President for the Global Service Provider unit. Mr. Glickman?s 21-year tenure at Cisco also included leadership roles in its Cloud & Managed Services and Channels businesses worldwide. He has also held executive positions at Fujitsu Americas and Amdahl Corporation and currently serves on the board of directors at EverOps, a private company.

Mr. Glickman received a Master of Business Administration in finance from the University of Illinois Urbana-Champaign. Additionally, on July 27, 2023, the Board appointed Edward Durkin, the Company?s Chief Financial Officer, to serve as principal accounting officer of the Company. Mr. Durkin, age 62, currently serves as the Company?s Chief Financial Officer and served as its Interim Chief Executive Officer from March 13, 2023 to August 1, 2023.

Prior to joining the Company in March 2022, Mr. Durkin had served as the chief financial officer of Fuze, Inc., a global, enterprise-focused provider of unified cloud-based communications software, that was acquired by 8x8, Inc., since December 2020. Prior to Fuze, Mr. Durkin served as chief financial officer at Actifio Inc., Inc., a multi-cloud copy data management software company serving enterprise and global service provider customers which was acquired by Google, from January 2018 to December 2020. Prior to Actifio, Mr. Durkin served as chief financial officer at Digital Guardian, Inc., a data loss prevention software provider, from June 2015 to January 2018.

Mr. Durkin received a B.S. in Accounting from the University of Massachusetts Dartmouth. Mr. Durkin has no family relationship with any of the executive officers or directors of the Company. There are no arrangements or understandings between Mr. Durkin and any other person pursuant to which he is being appointed as the principal accounting officer of the Company.