GILEAD SCIENCES INC

CUSIP: 375558AP8 Class: CORPORATE OBLIG

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q3 2013
Shares 34,000,000 Value ($000) $94,149,000 Avg Close — Range —
Q2 2013
Shares 32,925,000 Value ($000) $74,611,000 Avg Close — Range —