ONYX PHARMACEUTICALS INC

CUSIP: 683399109 Class: COM

Pentwater Capital Management LP's Holding History (CIK: 0001425851)

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

Q3 2013
Shares 93,878 Value ($000) $11,707 Avg Close — Range —
Q2 2013
Shares 35,000 Value ($000) $3,039 Avg Close — Range —