ATMI INC

CUSIP: 00207R101 Class: COM

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q4 2013
Shares 2,700 Value ($000) $82 Avg Close — Range —
Q3 2013
Shares 2,700 Value ($000) $72 Avg Close — Range —
Q2 2013
Shares 2,700 Value ($000) $64 Avg Close — Range —