EX-21.1 4 d642244dex211.htm EX-21.1 EX-21.1

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

 

Name

   

Jurisdiction of Incorporation

Merrimack Pharmaceuticals (Bermuda) Ltd.*    Bermuda
Merrimack Pharmaceuticals UK Limited*    UK
Silver Creek Pharmaceuticals, Inc.    Delaware

 

* wholly owned