2000
$77M
from 10 investors over 10 rounds
Merrimack Pharmaceuticals raised $25M on July 2, 2018
Investors: Hercules Capital, Inc.
Merrimack Pharmaceuticals raised $77M on April 14, 2011
Investors: Jennison Associates LLC and Crocker Ventures, LLC
Merrimack Pharmaceuticals raised $65M on April 3, 2006
Investors: Jennison Associates LLC
Merrimack Pharmaceuticals raised undisclosed on March 28, 2006
Investors: University Venture Fund
Merrimack Pharmaceuticals raised $9M on June 20, 2005
Investors: Hercules Capital, Inc.
Merrimack Pharmaceuticals raised $28M on April 20, 2005
Investors: Unilever Ventures
Merrimack Pharmaceuticals raised $28M on May 5, 2004
Investors: Wharton Capital Partners LTD and rEVO Biologics
Merrimack Pharmaceuticals raised undisclosed on March 25, 2004
Investors: National Institutes of Health