ATMI INC

CUSIP: 00207R101 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q1 2014
Shares 11,842 Value ($000) $403 Avg Close — Range —
Q4 2013
Shares 229,078 Value ($000) $6,920 Avg Close — Range —
Q3 2013
Shares 229,615 Value ($000) $6,089 Avg Close — Range —
Q2 2013
Shares 239,025 Value ($000) $5,653 Avg Close — Range —