ARENA PHARMACEUTICALS INC

CUSIP: 040047102 Class: COMMON STOCK

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

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

Q3 2015
Shares 4,640,877 Value ($000) $8,864 Avg Close — Range —
Q2 2015
Shares 6,983,710 Value ($000) $32,404 Avg Close — Range —
Q1 2015
Shares 9,229,379 Value ($000) $40,332 Avg Close — Range —
Q4 2014
Shares 6,953,737 Value ($000) $24,129 Avg Close — Range —
Q3 2014
Shares 5,847,999 Value ($000) $24,503 Avg Close — Range —
Q2 2014
Shares 4,369,066 Value ($000) $25,603 Avg Close — Range —
Q1 2014
Shares 1,216,579 Value ($000) $7,664 Avg Close — Range —
Q4 2013
Shares 1,216,579 Value ($000) $7,117 Avg Close — Range —
Q3 2013
Shares 1,216,579 Value ($000) $6,411 Avg Close — Range —
Q2 2013
Shares 2,568,588 Value ($000) $19,778 Avg Close — Range —