ATMI INC

CUSIP: 00207R101 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q1 2014
Shares 2,148,853 Value ($000) $73,083 Avg Close — Range —
Q4 2013
Shares 2,010,122 Value ($000) $60,726 Avg Close — Range —
Q3 2013
Shares 1,972,685 Value ($000) $52,316 Avg Close — Range —
Q2 2013
Shares 1,915,955 Value ($000) $45,313 Avg Close — Range —