ONYX PHARMACEUTICALS INC

CUSIP: 683399109 Class: COM

Redmile Group, LLC's Holding History (CIK: 0001425738)

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

Q2 2013
Shares 393,981 Value ($000) $34,205 Avg Close — Range —
Q1 2013
Shares 402,001 Value ($000) $35,722 Avg Close — Range —