ATMI INC

CUSIP: 00207R101 Class: COM

ProShare Advisors LLC's Holding History (CIK: 0001357955)

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

Q1 2014

Shares 33,003 Value ($000) $1,122 Avg Close — Range —

Q3 2013

Shares 20,970 Value ($000) $556 Avg Close — Range —

Q2 2013

Shares 21,864 Value ($000) $517 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	33,003	$1,122	—	—
Q3 2013	20,970	$556	—	—
Q2 2013	21,864	$517	—	—