ONYX PHARMACEUTICALS INC

CUSIP: 683399109 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q3 2013
Shares 118,490 Value ($000) $14,772 Avg Close — Range —
Q2 2013
Shares 151,753 Value ($000) $13,175 Avg Close — Range —