Transaction Details

Footnotes

Each share is represented by a Restricted Stock Unit ("RSU"). One-third (1/3) of the total RSUs will vest on each of the first three (3) anniversaries of the Vesting Commencement Date (6/5/2025), provided that the Reporting Person continues to serve through each such vesting date. | Each share is represented by a Performance-based Restricted Stock Unit ("PSU"). | Grant of 35,000 PSUs, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing price of a share of ATEN common stock during any one hundred (100) day trading period between July 14, 2025 and July 14, 2029 (the "Performance Milestone"). Upon achievement of the Performance Milestone, vesting is subject to continued employment with the Company through the applicable vesting date, which occurs in three installments, with the vesting of the first fifty percent (50%) to occur within thirty (30) days of achievement of the Performance Milestone and an additional twenty-five percent (25%) on each of the first and second anniversaries of the date of achievement of the Performance Milestone.