EXELIXIS INC

CUSIP: 30161QAC8 Class: CNV

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

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

Q1 2015
Shares 4,985,000 Value ($000) $3,762 Avg Close — Range —
Q4 2013
Shares 25,050,000 Value ($000) $30,691 Avg Close — Range —
Q3 2013
Shares 29,000,000 Value ($000) $33,672 Avg Close — Range —
Q2 2013
Shares 67,000,000 Value ($000) $65,448 Avg Close — Range —