ATMI INC

CUSIP: 00207R101 Class: COM

TEACHER RETIREMENT SYSTEM OF TEXAS's Holding History (CIK: 0000796848)

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

Q1 2014
Shares 1,184 Value ($000) $40 Avg Close — Range —
Q4 2013
Shares 1,189 Value ($000) $36 Avg Close — Range —
Q3 2013
Shares 4,022 Value ($000) $107 Avg Close — Range —
Q2 2013
Shares 2,179 Value ($000) $52 Avg Close — Range —