MATTSON TECHNOLOGY INC

CUSIP: 577223100 Class: CMN

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

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

Q4 2014
Shares 10,285 Value ($000) $35 Avg Close — Range —
Q2 2014
Shares 40,139 Value ($000) $88 Avg Close — Range —
Q1 2014
Shares 126,064 Value ($000) $292 Avg Close — Range —