MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

THOMPSON DAVIS & CO., INC.'s Holding History (CIK: 0001017284)

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

Q2 2015
Shares 1,000 Value ($000) $3 Avg Close — Range —
Q1 2015
Shares 1,000 Value ($000) $4 Avg Close — Range —
Q4 2014
Shares 1,000 Value ($000) $3 Avg Close — Range —
Q3 2014
Shares 1,000 Value ($000) $2 Avg Close — Range —
Q2 2014
Shares 52,500 Value ($000) $113 Avg Close — Range —
Q1 2014
Shares 215,300 Value ($000) $500 Avg Close — Range —
Q4 2013
Shares 271,000 Value ($000) $743 Avg Close — Range —