ATMI INC

CUSIP: 00207R101 Class: COM

NEEDHAM INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001167212)

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

Q4 2013
Shares 45,000 Value ($000) $1,359 Avg Close — Range —
Q3 2013
Shares 35,000 Value ($000) $928 Avg Close — Range —
Q2 2013
Shares 35,000 Value ($000) $828 Avg Close — Range —