X0508 4 2026-03-01 0 0001323885 AtriCure, Inc. ATRC 0001336063 Privitera Salvatore 7555 INNOVATION WAY MASON OH 45040-9695 0 1 0 0 Chief Technical Officer 0 Common Stock 2026-03-01 4 A 0 30390 0 A 155977 D Common Stock 2026-03-01 4 A 0 15198 0 A 171175 D Common Stock 2026-03-01 4 F 0 13127 31.26 D 158048 D The Reporting Person acquired these shares pursuant to a Restricted Stock Award under the AtriCure, Inc. 2023 Stock Incentive Plan. One third of the shares will vest annually upon the respective one, two, and three year anniversaries of the date of grant. The Reporting Person acquired these shares pursuant to the vesting and release of a Performance Share Award under the AtriCure, Inc. 2023 Stock Incentive Plan. The award had Company performance goals and a service period requirement which were met. The Reporting Person has elected to transfer these shares to the Company to satisfy the tax withholding obligation incurred upon the vesting and release of shares previously acquired pursuant to a Restricted Stock Award or Performance Share Award. /s/ Salvatore Privitera 2026-03-03