ATMI INC

CUSIP: 00207R101 Class: COM

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q1 2014
Shares 57,964 Value ($000) $1,971 Avg Close — Range —
Q4 2013
Shares 80,034 Value ($000) $2,418 Avg Close — Range —
Q3 2013
Shares 64,828 Value ($000) $1,719 Avg Close — Range —
Q2 2013
Shares 53,823 Value ($000) $1,273 Avg Close — Range —