MOMENTA PHARMACEUTICALS INC - FORM 10-K - EX-21 - EXHIBIT 21 - March 10, 2011

Attached files

file filename
EX-31.2 - EX-31.2 - MOMENTA PHARMACEUTICALS INCa2202508zex-31_2.htm
EX-23.1 - EX-23.1 - MOMENTA PHARMACEUTICALS INCa2202508zex-23_1.htm
EX-31.1 - EX-31.1 - MOMENTA PHARMACEUTICALS INCa2202508zex-31_1.htm
EX-32.1 - EX-32.1 - MOMENTA PHARMACEUTICALS INCa2202508zex-32_1.htm
EX-10.39 - EX-10.39 - MOMENTA PHARMACEUTICALS INCa2202508zex-10_39.htm
EX-10.28 - EX-10.28 - MOMENTA PHARMACEUTICALS INCa2202508zex-10_28.htm
10-K - 10-K - MOMENTA PHARMACEUTICALS INCa2202508z10-k.htm

QuickLinks -- Click here to rapidly navigate through this document


EXHIBIT 21

SUBSIDIARIES OF MOMENTA PHARMACEUTICALS, INC.

Name of Subsidiary
  Jurisdiction of
Organization
Momenta Pharmaceuticals Securities Corporation   Massachusetts



QuickLinks

Stock widget

Investing forum

MOMENTA PHARMACEUTICALS INC Reports