The 2024 Annual Meeting of stockholders (the ‘‘Annual Meeting’’) of A10 Networks, Inc., a Delaware corporation, will be held on Thursday, May 9, 2024 at 10:00 a.m. Pacific Time, at 2300 Orchard Parkway, San Jose, CA 95131

Electronic Proxy Voting

The Notice of Internet Availability of Proxy Materials containing instructions on how to access this proxy statement and our annual report is first being mailed on or about March 27, 2024 to all stockholders entitled to vote at the Annual Meeting. The proxy statement and our 2023 annual report can be accessed directly at the following Internet address All you have to do is enter the control number located on your proxy card.