ATMI INC

CUSIP: 00207R101 Class: COM

HEARTLAND ADVISORS INC's Holding History (CIK: 0000937394)

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

Q4 2013
Shares 1,179,123 Value ($000) $35,621 Avg Close — Range —
Q3 2013
Shares 1,170,587 Value ($000) $31,044 Avg Close — Range —
Q2 2013
Shares 931,930 Value ($000) $22,040 Avg Close — Range —