EX-21.1 2 a2237949zex-21_1.htm EX-21.1
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Exhibit 21.1

SUBSIDIARIES OF RA PHARMACEUTICALS, INC.

Name
  Jurisdiction of
Organization 		  Ownership
Percentage 		 

Cosmix Verwaltungs GmbH

   Germany     100 %

Ra Europe Limited

   United Kingdom     100 %

Ra Pharmaceuticals Security Corporation

   USA—MA     100 %



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SUBSIDIARIES OF RA PHARMACEUTICALS, INC.