Tom Constantino Joins A10 Networks as Executive Vice President, Chief Financial Officer

SAN JOSE, Calif., May 19, 2017 — A10 Networks, Inc. (NYSE: ATEN), a Secure Application Servicesâ„¢ company, today announced the appointment of Tom Constantino as executive vice president, chief financial officer, effective June 12, 2017.

“Tom is an accomplished financial executive with global leadership experience, and we are excited to have him join the A10 team,”said Lee Chen, president and chief executive officer of A10 Networks. “His expertise in strategic financial planning and operations will be a solid asset to A10 as we continue to capitalize on new market opportunities while driving improved profitability.”

Constantino brings more than two decades of leadership experience in finance, accounting, strategic planning and M&A. Before joining A10 Networks, Constantino served as vice president/head of accounting and finance operations at Western Digital where he managed a large team of finance professionals across eight countries and was an instrumental contributor in the company’s acquisition of SanDisk. While at Western Digital, Constantino also served as chief financial officer of the HGST subsidiary, where he helped drive the company’s strategic cloud and enterprise technology focus and oversaw financial planning and analysis for several strategic acquisitions. Constantino’s experience also includes the role of vice president, corporate finance at Hitachi Global Storage Technologies and 16 years at Hewlett-Packard. Constantino began his career in public accounting at PricewaterhouseCoopers and holds a Bachelor of Science in Business Administration from San Jose State University.

“I am excited to join A10 Networks with its rich heritage of innovative technology and look forward to applying my experience to drive long-term growth and profitability for the business,” said Constantino.

Forward-Looking Statements
This press release contains “forward-looking statements,”including statements regarding our ability to capitalize on new market opportunities while driving improving profitability. Forward-looking statements are subject to known and unknown risks and uncertainties and are based on assumptions that may prove to be incorrect, which could cause actual results to differ materially from those expected or implied by the forward-looking statements. Factors that may cause actual results to differ include the continued market adoption of our products, our ability to successfully anticipate market needs and opportunities, our timely development of new products and features, any loss or delay of expected purchases by our largest end-customers, our ability to attract and retain new end-customers, continued growth in markets relating to network security, the ability of our sales team to execute well, our ability to shorten our close cycles, the ability of our channel partners to sell our products, our ability to achieve or maintain profitability while continuing to invest in our sales, marketing and research and development teams, variations in product mix or geographic locations of our sales and other factors identified in the company’s filings with the Securities and Exchange Commission (the “SEC”), including its most recent quarterly report on Form 10-Q. The company disclaims any obligation to update information contained in these forward-looking statements whether as a result of new information, future events, or otherwise.

About A10 Networks
A10 Networks (NYSE: ATEN) is a Secure Application Servicesâ„¢ company, providing a range of high-performance application networking solutions that help organizations ensure that their data center applications and networks remain highly available, accelerated and secure. Founded in 2004, A10 Networks is based in San Jose, Calif., and serves customers globally with offices worldwide. For more information, visit: and @A10Networks.

The A10 logo, A10 Networks and Secure Application Services are trademarks or registered trademarks of A10 Networks, Inc. in the United States and other countries.

Media Contact Karin Gilles Director of Public Relations 408-240-5176