EX-1
from SC 13G/A
~1
page
Pursuant to Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, the Undersigned Hereby Agree That Only One Statement Containing the Information Required on Schedule 13g Need Be Filed With Respect to Ownership by Each of the Undersigned of Shares of Common Stock of Xtent, Inc. This Agreement May Be Executed in Any Number of Counterparts, Each of Which Shall Be Deemed an Original. Dated: February 5, 2009. Split Rock Partners, LLC By: /S/ Steven L.P. Schwen Steven L.P. Schwen Its: Chief Financial Officer Spvc VI, LLC By: Spvc Management VI, LLC By: /S/ Steven L.P. Schwen Steven L.P. Schwen Its: Chief Financial Officer
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EX-1
from SC 13G
~1
page
Pursuant to Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, the Undersigned Hereby Agree That Only One Statement Containing the Information Required on Schedule 13g Need Be Filed With Respect to Ownership by Each of the Undersigned of Shares of Common Stock of Xtent, Inc. This Agreement May Be Executed in Any Number of Counterparts, Each of Which Shall Be Deemed an Original. Date: February 8, 2008. Split Rock Partners, LLC By: /S/ Steven L.P. Schwen Steven L.P. Schwen Its: Chief Financial Officer Spvc VI, LLC By: Spvc Management VI, LLC By: /S/ Steven L.P. Schwen Steven L.P. Schwen Its: Chief Financial Officer
12/34/56
