Attached files

file filename
10-K - 10-K - MERRIMACK PHARMACEUTICALS INCmack-10k_20191231.htm
EX-32.2 - EX-32.2 - MERRIMACK PHARMACEUTICALS INCmack-ex322_10.htm
EX-32.1 - EX-32.1 - MERRIMACK PHARMACEUTICALS INCmack-ex321_9.htm
EX-31.2 - EX-31.2 - MERRIMACK PHARMACEUTICALS INCmack-ex312_11.htm
EX-31.1 - EX-31.1 - MERRIMACK PHARMACEUTICALS INCmack-ex311_6.htm
EX-23.2 - EX-23.2 - MERRIMACK PHARMACEUTICALS INCmack-ex232_188.htm
EX-21.1 - EX-21.1 - MERRIMACK PHARMACEUTICALS INCmack-ex211_7.htm
EX-4.5 - EX-4.5 - MERRIMACK PHARMACEUTICALS INCmack-ex45_189.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-222093) and Form S-8 (Nos. 333-180996, 333-186370, 333-194313, 333-202346, 333-209745, 333-223577 and 333-230084) of Merrimack Pharmaceuticals, Inc. of our report dated March 6, 2019 relating to the financial statements, which appears in this Form 10-K.

 

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

March 12, 2020