ATMI INC

CUSIP: 00207R101 Class: COM

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO's Holding History (CIK: 0001141802)

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

Q1 2014
Shares 459 Value ($000) $16 Avg Close — Range —
Q4 2013
Shares 450 Value ($000) $14 Avg Close — Range —
Q3 2013
Shares 450 Value ($000) $12 Avg Close — Range —