AtriCure, Inc. — Director's Dealing 2012

Jun 8, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AtriCure, Inc. (ATRC)
CIK: 0001323885
Period of Report: 2012-06-06

Reporting Person: PRESIDIO MANAGEMENT GROUP VIII L L C (10% Owner)
Reporting Person: US VENTURE PARTNERS VIII L P (10% Owner)
Reporting Person: USVP VIII AFFILIATES FUND L P (10% Owner)
Reporting Person: USVP ENTREPRENEUR PARTNERS VIII A L P (10% Owner)
Reporting Person: USVP ENTREPRENEUR PARTNERS VIII B L P (10% Owner)
Reporting Person: FEDERMAN IRWIN (10% Owner)
Reporting Person: FU WINSTON S (10% Owner)
Reporting Person: KRAUSZ STEVEN M (10% Owner)
Reporting Person: LIDDLE DAVID E (10% Owner)
Reporting Person: ROOT JONATHAN D (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-06-06	Common Stock	J	350000	—	Disposed	1852444	Indirect
2012-06-06	Common Stock	J	2579	—	Disposed	14452	Indirect
2012-06-07	Common Stock	S	3279	$9.444	Disposed	18374	Indirect
2012-06-07	Common Stock	S	1759	$9.444	Disposed	9858	Indirect

Footnotes

F1: Prorata distribution in kind from the partnership without consideration to its partners.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.67 to $9.20, inclusive. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4

F3: Presidio Management Group VIII, LLC ("PMG VIII") is the general partner of US Venture Partners VIII, L.P. ("USVP VIII"), USVP Entrepreneur Partners VIII-A, L.P. ("EP VIII-A"), USVP Entrepreneur Partners VIII-B, L.P. ("EP VIII-B"), and USVP VIII Affiliates Fund, L.P. ("AFF VIII"), and Irwin Federman, Winston S. Fu, Steven M. Krausz, David E. Liddle, Jonathan D. Root, Christopher Rust, Casey M. Tansey and Philip M. Young, the managing members of PMG VIII, may be deemed to share voting and dispositive power over the shares held by USVP VIII, EP VIII-A, EP VIII-B and AFF VIII. Such persons and entities disclaim beneficial ownership of shares held by USVP VIII, EP VIII-A, EP VIII-B and AFF VIII except to the extent of any pecuniary interest therein.