ATMI INC

CUSIP: 00207R101 Class: COM

SEGALL BRYANT & HAMILL, LLC's Holding History (CIK: 0001006378)

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

Q1 2014
Shares 293,227 Value ($000) $9,973 Avg Close — Range —
Q4 2013
Shares 280,829 Value ($000) $8,484 Avg Close — Range —
Q3 2013
Shares 303,982 Value ($000) $8,062 Avg Close — Range —
Q2 2013
Shares 55,119 Value ($000) $1,304 Avg Close — Range —