ATMI INC

CUSIP: 00207R101 Class: COM

Public Sector Pension Investment Board's Holding History (CIK: 0001396318)

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

Q1 2014
Shares 66,744 Value ($000) $2,270 Avg Close — Range —
Q4 2013
Shares 77,544 Value ($000) $2,343 Avg Close — Range —
Q3 2013
Shares 77,144 Value ($000) $2,046 Avg Close — Range —
Q2 2013
Shares 60,244 Value ($000) $1,425 Avg Close — Range —