MOMENTA PHARMACEUTICALS INC

CUSIP: 60877T100 Class: COM

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 1,136,645 Value ($000) $20,096 Avg Close — Range —
Q3 2013
Shares 2,007,886 Value ($000) $28,893 Avg Close — Range —