MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q1 2016
Shares 1,031 Value ($000) $4 Avg Close — Range —
Q4 2015
Shares 4,107 Value ($000) $14 Avg Close — Range —
Q3 2015
Shares 260 Value ($000) $1 Avg Close — Range —
Q2 2015
Shares 25,056 Value ($000) $84 Avg Close — Range —
Q1 2015
Shares 21,815 Value ($000) $86 Avg Close — Range —
Q4 2014
Shares 6,968 Value ($000) $24 Avg Close — Range —
Q3 2014
Shares 535 Value ($000) $1 Avg Close — Range —
Q2 2014
Shares 2,920 Value ($000) $6 Avg Close — Range —
Q4 2013
Shares 3,125 Value ($000) $9 Avg Close — Range —
Q3 2013
Shares 655 Value ($000) $2 Avg Close — Range —