ATMI INC

CUSIP: 00207R101 Class: COM

Granahan Investment Management, LLC's Holding History (CIK: 0001026710)

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

Q1 2014
Shares 340,700 Value ($000) $11,587 Avg Close — Range —
Q4 2013
Shares 1,892,975 Value ($000) $57,187 Avg Close — Range —
Q3 2013
Shares 752,976 Value ($000) $19,969 Avg Close — Range —
Q2 2013
Shares 397,646 Value ($000) $9,404 Avg Close — Range —