ATMI INC

CUSIP: 00207R101 Class: COM

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q1 2014
Shares 110,439 Value ($000) $3,757 Avg Close — Range —
Q4 2013
Shares 110,312 Value ($000) $3,333 Avg Close — Range —
Q3 2013
Shares 103,840 Value ($000) $2,771 Avg Close — Range —
Q2 2013
Shares 115,793 Value ($000) $2,746 Avg Close — Range —