AtriCure, Inc. — Director's Dealing 2015

May 18, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AtriCure, Inc. (ATRC)
CIK: 0001323885
Period of Report: 2015-05-14

Reporting Person: Krell Elizabeth D (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-14	Common Stock	S	10000	$21.77	Disposed	7162	Direct

Footnotes

F1: These shares are the result of the reporting person's option exercise on May 11, 2015, which was previously reported on Form 4.

F2: This transaction was executed in multiple trades at prices ranging from $21.55 to $21.99 per share. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.