MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

THOMPSON SIEGEL & WALMSLEY LLC's Holding History (CIK: 0001008322)

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

Q4 2015
Shares 8,300 Value ($000) $29 Avg Close — Range —
Q3 2015
Shares 8,300 Value ($000) $19 Avg Close — Range —
Q2 2015
Shares 8,300 Value ($000) $28 Avg Close — Range —
Q1 2015
Shares 8,300 Value ($000) $33 Avg Close — Range —
Q4 2014
Shares 8,300 Value ($000) $28 Avg Close — Range —
Q3 2014
Shares 8,300 Value ($000) $21 Avg Close — Range —
Q2 2014
Shares 8,300 Value ($000) $18 Avg Close — Range —
Q1 2014
Shares 8,300 Value ($000) $19 Avg Close — Range —
Q4 2013
Shares 8,300 Value ($000) $23 Avg Close — Range —