MENTOR GRAPHICS CORP

CUSIP: 587200106 Class: COM

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

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

Q2 2015
Shares 10,329 Value ($000) $273,000 Avg Close — Range —
Q4 2014
Shares 16,634 Value ($000) $365,000 Avg Close — Range —