MATTRESS FIRM HLDG CORP

CUSIP: 57722W106 Class: CMN

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

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

Q1 2014
Shares 368,795 Value ($000) $17,639,000 Avg Close — Range —
Q4 2013
Shares 294,628 Value ($000) $12,681,000 Avg Close — Range —
Q3 2013
Shares 235,515 Value ($000) $7,489,000 Avg Close — Range —
Q2 2013
Shares 413,334 Value ($000) $16,657,000 Avg Close — Range —