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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1323885	Atricure Inc.	ATRC	Surgical & Medical Instruments & Apparatus (3841)	341940305

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1106510	C Donald Harrison	9250 Old Indian Hill Rd Cincinnati OH 45243		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2011-02-23	3,947	$0.57	202,688	No	4	M	Direct
Common Stock	Acquisiton	2011-02-23	7,368	$0.57	210,056	No	4	M	Direct
Common Stock	Disposition	2011-02-23	11,315	$10.34	198,741	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2011-02-23	3,947	$0.00	3,947	$0.57
Common Stock	Stock Option (right to buy)	Disposition	2011-02-23	7,368	$0.00	7,368	$0.57

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
7,368	2001-03-29	2011-03-29	No	4	M	Direct
0	2001-03-29	2011-03-29	No	4	M	Direct

Footnotes

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.
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).
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).