AtriCure, Inc. — Director's Dealing 2011

Feb 25, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AtriCure, Inc. (ATRC)
CIK: 0001323885
Period of Report: 2011-02-23

Reporting Person: HARRISON DONALD C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-23	Common Stock	M	3947	$0.57	Acquired	202688	Direct
2011-02-23	Common Stock	M	7368	$0.57	Acquired	210056	Direct
2011-02-23	Common Stock	S	11315	$10.3357	Disposed	198741	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-23	Stock Option (right to buy)	$0.57	M	3947	Disposed	2011-03-29	Common Stock (3947)	Direct
2011-02-23	Stock Option (right to buy)	$0.57	M	7368	Disposed	2011-03-29	Common Stock (7368)	Direct

Footnotes

F1: Prices range from $10.16 per share to $10.56 per share. The reporting person undertakes to provide full pricing information if requested by the Securities and Exchange Commission, the Issuer or a security holder of the Issuer.

F2: Dr. Harrison was granted 3,947 stock options on March 29, 2001, exercisable cumulatively at a rate of 50% on March 29, 2001 and 50% on March 29, 2002 (one year from date of grant).

F3: Dr. Harrison was granted 7,368 stock options on March 29, 2001, exercisable cumulatively at a rate of 25% per annum beginning on March 29, 2001 (grant date).