MENTOR GRAPHICS CORP

CUSIP: 587200106 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2016
Shares 7,213 Value ($000) $266 Avg Close — Range —
Q4 2015
Shares 6,703 Value ($000) $123 Avg Close — Range —
Q3 2015
Shares 2,434 Value ($000) $60 Avg Close — Range —
Q2 2015
Shares 1,734 Value ($000) $46 Avg Close — Range —
Q1 2015
Shares 4,622 Value ($000) $111 Avg Close — Range —
Q4 2014
Shares 8 Value ($000) $0 Avg Close — Range —
Q3 2014
Shares 2,639 Value ($000) $54 Avg Close — Range —
Q2 2014
Shares 4,121 Value ($000) $89 Avg Close — Range —
Q1 2014
Shares 7,068 Value ($000) $156 Avg Close — Range —
Q3 2013
Shares 10,947 Value ($000) $256 Avg Close — Range —
Q2 2013
Shares 14,205 Value ($000) $278 Avg Close — Range —