AtriCure, Inc. — Director's Dealing 2021

May 10, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AtriCure, Inc. (ATRC)
CIK: 0001323885
Period of Report: 2021-05-06

Reporting Person: Collar Mark A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-06	Common Stock	M	10000	$14.17	Acquired	82558	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-06	Stock Option (Right to Buy)	$14.17	M	10000	Disposed	2021-05-18	Common Stock (10000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5300	Indirect

Footnotes

F1: The Reporting Person disclaims beneficial ownership of these securities, except as to his pecuniary interest therein.

F2: These options were granted on May 18, 2011 and are exercisable cumulatively at a rate of 33% per annum beginning one year from date of grant.