AGREEMENT
EXHIBIT I
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 13D need be filed with respect to ownership by each of the undersigned of shares of Common Stock of North American Scientific, Inc.
This Agreement may be executed in any number of counterparts, each of which shall be deemed an original.
Date: June 16, 2006
THREE ARCH PARTNERS IV, L.P. |
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Three Arch Management IV, L.L.C. |
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Managing Member |
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THREE ARCH ASSOCIATES IV, L.P. |
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Three Arch Management IV, L.L.C. |
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Managing Member |
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THREE ARCH MANAGEMENT IV, L.L.C. |
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Managing Member |
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THREE ARCH CAPITAL, L.P. |
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TAC Management, L.L.C. |
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Managing Member |
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1
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TAC ASSOCIATES, L.P. |
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TAC Management, L.L.C |
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Managing Member |
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TAC MANAGEMENT, L.L.C. |
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Managing Member |
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XXXX X. WAN |
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Xxxx X. Wan |
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XXXXXXX X. XXXXXX |
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Xxxxxxx X. Xxxxxx |
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XXXXXXX XXXXXXXXX |
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Xxxxxxx Xxxxxxxxx |
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*By: |
/s/ Xxxxxxx Xxxxxxxxx |
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Name: |
Xxxxxxx Xxxxxxxxx |
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Authorized Person |
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This Schedule 13D was executed by Xxxxxxx Xxxxxxxxx, pursuant to a Statement Appointing Designated Filer and Authorized Signatory, which is incorporated herein by reference.
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