MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q1 2016
Shares 39,300 Value ($000) $143 Avg Close — Range —
Q3 2015
Shares 3,200 Value ($000) $7 Avg Close — Range —
Q2 2015
Shares 1,200 Value ($000) $4 Avg Close — Range —