ARENA PHARMACEUTICALS INC

CUSIP: 040047102 Class: COMMON STOCK

RA CAPITAL MANAGEMENT, L.P.'s Holding History (CIK: 0001346824)

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

Q1 2016
Shares 9,364,105 Value ($000) $18,447 Avg Close — Range —
Q4 2015
Shares 8,714,482 Value ($000) $16,558 Avg Close — Range —