MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q1 2016
Shares 79,443 Value ($000) $290 Avg Close — Range —
Q4 2015
Shares 79,443 Value ($000) $280 Avg Close — Range —
Q3 2015
Shares 79,243 Value ($000) $185 Avg Close — Range —
Q2 2015
Shares 79,243 Value ($000) $265 Avg Close — Range —
Q1 2015
Shares 79,243 Value ($000) $312 Avg Close — Range —
Q4 2014
Shares 79,243 Value ($000) $269 Avg Close — Range —
Q3 2014
Shares 79,243 Value ($000) $196 Avg Close — Range —
Q2 2014
Shares 79,243 Value ($000) $174 Avg Close — Range —
Q1 2014
Shares 59,243 Value ($000) $137 Avg Close — Range —
Q4 2013
Shares 59,243 Value ($000) $162 Avg Close — Range —
Q3 2013
Shares 59,243 Value ($000) $142 Avg Close — Range —
Q2 2013
Shares 59,243 Value ($000) $129 Avg Close — Range —