MENTOR GRAPHICS CORP

CUSIP: 587200106 Class: COM

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2016
Shares 331,300 Value ($000) $12,222 Avg Close — Range —
Q3 2016
Shares 120,000 Value ($000) $3,173 Avg Close — Range —
Q2 2016
Shares 120,000 Value ($000) $2,551 Avg Close — Range —
Q1 2016
Shares 120,000 Value ($000) $2,440 Avg Close — Range —
Q4 2015
Shares 126,000 Value ($000) $2,321 Avg Close — Range —
Q3 2015
Shares 127,000 Value ($000) $3,128 Avg Close — Range —
Q2 2015
Shares 127,000 Value ($000) $3,357 Avg Close — Range —
Q1 2015
Shares 130,000 Value ($000) $3,124 Avg Close — Range —
Q4 2014
Shares 130,000 Value ($000) $2,850 Avg Close — Range —
Q3 2014
Shares 134,000 Value ($000) $2,747 Avg Close — Range —
Q2 2014
Shares 134,000 Value ($000) $2,890 Avg Close — Range —
Q1 2014
Shares 134,000 Value ($000) $2,951 Avg Close — Range —
Q4 2013
Shares 144,000 Value ($000) $3,466 Avg Close — Range —
Q3 2013
Shares 145,000 Value ($000) $3,389 Avg Close — Range —
Q2 2013
Shares 151,000 Value ($000) $2,952 Avg Close — Range —