JOINT FILING AGREEMENT
EXHIBIT
1
In
accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act
of
1934, as amended, the persons named below agree to the joint filing on behalf
of
each of them a Statement on Schedule 13G (including amendments thereto) with
regard to the common stock of PENWEST PHARMACEUTICALS CO. and further agree
that
this Joint Filing Agreement be included as an Exhibit to such joint filings.
In
evidence thereof, the undersigned, being duly authorized, hereby execute this
Joint Filing Agreement as of March 26, 2007.
| WS CAPITAL, L.L.C. | ||
| By: |
/s/
Xxxx X. Xxxxxx
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Xxxx X. Xxxxxx, Member |
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| WS CAPITAL MANAGEMENT, L.P. | ||
| By: |
WS
Capital, L.L.C., its general partner
|
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| By: |
/s/
Xxxx X. Xxxxxx
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Xxxx X. Xxxxxx, Member |
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| WSV MANAGEMENT, L.L.C. | ||
| By: |
/s/
Xxxx X. Xxxxxx
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Xxxx X. Xxxxxx, Member |
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| WS VENTURES MANAGEMENT, L.P. | ||
| By: |
WSV
Management, L.L.C., its general partner
|
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| By: |
/s/
Xxxx X. Xxxxxx
|
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Xxxx X. Xxxxxx, Member |
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/s/
Xxxx X. Xxxxxx
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XXXX X. XXXXXX |
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/s/
G. Xxxxx Xxxxx
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G. XXXXX XXXXX |
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/s/
Xxxxxxx X. Xxxxxx
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XXXXXXX X. XXXXXX |
