ATMI INC

CUSIP: 00207R101 Class: COM

VIRGINIA RETIREMENT SYSTEMS ET AL's Holding History (CIK: 0001005354)

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

Q1 2014
Shares 9,900 Value ($000) $337 Avg Close — Range —
Q4 2013
Shares 17,600 Value ($000) $532 Avg Close — Range —
Q3 2013
Shares 18,500 Value ($000) $491 Avg Close — Range —