ATMI INC

CUSIP: 00207R101 Class: COM

SHEPHERD KAPLAN KROCHUK, LLC's Holding History (CIK: 0001218583)

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

Q1 2014
Shares 21,361 Value ($000) $727 Avg Close — Range —
Q4 2013
Shares 22,071 Value ($000) $667 Avg Close — Range —
Q3 2013
Shares 22,071 Value ($000) $585 Avg Close — Range —
Q2 2013
Shares 22,071 Value ($000) $522 Avg Close — Range —