X0206 3 2015-12-07 1 0001235010 MOMENTA PHARMACEUTICALS INC MNTA 0001659870 Ottmer Matthew P. C/O MOMENTA PHARMACEUTICALES, INC. 675 WEST KENDALL STREET CAMBRIDGE MA 02142 0 1 0 0 Chief Operating Officer /s/ Marie T. Washburn as attorney in fact 2015-12-14