MENTOR GRAPHICS CORP

CUSIP: 587200AK2 Class: CNVRTBND

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

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

Q3 2016
Shares 23,000,000 Value ($000) $30,730,000 Avg Close — Range —
Q2 2016
Shares 20,000,000 Value ($000) $22,024,000 Avg Close — Range —
Q1 2016
Shares 27,000,000 Value ($000) $28,327,000 Avg Close — Range —
Q4 2015
Shares 21,500,000 Value ($000) $22,385,000 Avg Close — Range —
Q4 2014
Shares 6,500,000 Value ($000) $7,715,000 Avg Close — Range —
Q3 2014
Shares 8,513,000 Value ($000) $9,992,000 Avg Close — Range —
Q2 2014
Shares 8,713,000 Value ($000) $10,687,000 Avg Close — Range —
Q1 2014
Shares 8,000,000 Value ($000) $9,993,000 Avg Close — Range —
Q4 2013
Shares 8,187,000 Value ($000) $10,865,000 Avg Close — Range —
Q3 2013
Shares 10,887,000 Value ($000) $14,214,000 Avg Close — Range —
Q2 2013
Shares 7,500,000 Value ($000) $9,057,000 Avg Close — Range —