JOINT FILING AGREEMENT
EXHIBIT 1
In accordance with Rule 13d−1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Common Stock of ARIAD Pharmaceuticals, Inc. 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, have executed this Joint Filing Agreement this 29th day of October, 2013.
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By:
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/s/ Xxxx Xxxxx
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Name: Xxxx Xxxxx
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Title: Chief Operating Officer & Chief Compliance Officer
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SARISSA CAPITAL DOMESTIC FUND LP
By: Sarissa Capital Fund GP LP, its general partner
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By:
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/s/ Xxxx Xxxxx
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Name: Xxxx Xxxxx
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Title: Authorized Person
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SARISSA CAPITAL OFFSHORE MASTER FUND LP
By: Sarissa Capital Offshore Fund GP LLC, its general partner
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By:
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/s/ Xxxx Xxxxx
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Name: Xxxx Xxxxx
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Title: Authorized Person
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/s/ Xxxxxxxxx X. Xxxxxx
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Xxxxxxxxx X. Xxxxxx
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