ONYX PHARMACEUTICALS INC

CUSIP: 683399109 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q3 2013
Shares 5,438 Value ($000) $678 Avg Close — Range —
Q2 2013
Shares 4,165 Value ($000) $362 Avg Close — Range —