EX-1 2 mi901693d.txt JOINT FILING AGREEMENT Exhibit 1 --------- Joint Filing Agreement The undersigned hereby agree that the statement on Schedule 13D filed by the undersigned with respect to the Common Stock of Micro Therapeutics, Inc. is, and any amendment thereto signed by each of the undersigned shall be, filed on behalf of each undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. Dated: June 4, 2001 MICRO INVESTMENT, LLC By: Warburg, Pincus Equity Partners, L.P., Managing Member By: Warburg, Pincus & Co., General Partner By: /s/ Scott A. Arenare ------------------------------ Name: Scott A. Arenare Title: Attorney-in-Fact Dated: June 4, 2001 WARBURG, PINCUS EQUITY PARTNERS, L.P. By: Warburg, Pincus & Co., General Partner By: /s/ Scott A. Arenare ------------------------------ Name: Scott A. Arenare Title: Attorney-in-Fact Dated: June 4, 2001 WARBURG, PINCUS & CO. By: /s/ Scott A. Arenare ------------------------------ Name: Scott A. Arenare Title: Attorney-in-Fact Dated: June 4, 2001 WARBURG PINCUS LLC By: /s/ Scott A. Arenare ------------------------------ Name: Scott A. Arenare Title: Vice President and General Counsel Dated: June 4, 2001 VERTICAL FUND ASSOCIATES, L.P. By: The Vertical Group, L.P., General Partner By: /s/ John E. Runnells ------------------------------ Name: John E. Runnells Title: General Partner Dated: June 4, 2001 VERTICAL LIFE SCIENCES L.P. By: The Vertical Group, L.P., General Partner By: /s/ John E. Runnells ------------------------------ Name: John E. Runnells Title: General Partner