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<title>Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights</title>
<link href="http://www.insiderinsights.com/news/company/mack" ></link>
<id>urn:uuid:d4e38904-99cd-569b-db78-e8c781e36c13</id>
<updated>2013-06-20T02:16:08-04:00</updated>
<author>Jonathan Moreland</author>
<subtitle>Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services</subtitle>
<entry>
<title>MACK: MULROY ROBERT J (PR,CEO,DIR) Exercised 50k Options (OB) of MERRIMACK PHARMACEUTICALS INC for $2.19 on 5/6, and Kept Them All</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2419802" ></link>
<id>urn:uuid:1066a2ff-a440-e23b-122c-59aacdcaa4db</id>
<updated>2013-05-06T16:55:52-04:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: STEWART EDWARD J (VP,PR) Exercised 5k Options (OB) of MERRIMACK PHARMACEUTICALS INC for $2.19 on 4/29, and Kept Them All</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2414539" ></link>
<id>urn:uuid:63c32853-18b1-59f2-6452-045d182a709a</id>
<updated>2013-04-30T16:34:01-04:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: DRESSER JAMES VAN B (DIR) Exercised 15k Options (OB) of MERRIMACK PHARMACEUTICALS INC for $2.19 on 4/25, and Kept Them All</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2413210" ></link>
<id>urn:uuid:65bc87a4-a62c-7493-cd1b-4756b3e13eea</id>
<updated>2013-04-26T17:18:23-04:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: NIELSEN ULRIK B (VP) Exercised 10,483 Options (OE) of MERRIMACK PHARMACEUTICALS INC for $2.19 on 4/24, and Sold Them All</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2413208" ></link>
<id>urn:uuid:218b7cce-26bf-0cb2-9acb-69e63da7a164</id>
<updated>2013-04-26T17:18:03-04:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: SINSKEY ANTHONY J (DIR) Exercised 15k Options (OB) of MERRIMACK PHARMACEUTICALS INC for $2.19 on 4/24, and Kept Them All</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2413206" ></link>
<id>urn:uuid:25a77188-198b-669c-e19f-11cc14f1d193</id>
<updated>2013-04-26T17:17:15-04:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: FEHR GORDON J (DIR) Exercised 15k Options (OE) of MERRIMACK PHARMACEUTICALS INC for $2.19 on 4/15, and Sold Them All</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2408812" ></link>
<id>urn:uuid:730fe11a-8813-a561-9822-efd00d87da27</id>
<updated>2013-04-16T18:02:08-04:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: SINSKEY ANTHONY J (DIR) Disposed (JS) 81,736 Shares of MERRIMACK PHARMACEUTICALS INC for $0.00 on 9/7</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2354841" ></link>
<id>urn:uuid:6311b4c1-5fcc-17fe-13fb-3434de36fc6c</id>
<updated>2013-02-13T10:09:59-05:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
<entry>
<title>MACK: SINSKEY ANTHONY J (DIR) Acquired (JB) 16,185 Shares of MERRIMACK PHARMACEUTICALS INC for $0.00 on 9/7</title>
<link href="http://www.insiderinsights.com/company/mack/merrimack-pharmaceuticals-inc/id-2354839" ></link>
<id>urn:uuid:bae23c6b-77fe-b7a2-8cb2-823a161baccf</id>
<updated>2013-02-13T10:09:59-05:00</updated>
<summary type="html" ><![CDATA[MERRIMACK PHARMACEUTICALS INC (MACK). Recent Price: $5.59. Mkt Cap:537.1mm. 10D Vol: 330k]]></summary>
</entry>
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