MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q4 2015
Shares 43,900 Value ($000) $155 Avg Close — Range —
Q3 2015
Shares 182,900 Value ($000) $426 Avg Close — Range —
Q2 2015
Shares 154,200 Value ($000) $517 Avg Close — Range —
Q1 2015
Shares 92,200 Value ($000) $363 Avg Close — Range —
Q2 2014
Shares 29,500 Value ($000) $65 Avg Close — Range —