ZYGO CORP

CUSIP: 989855101 Class: CMN

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

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

Q1 2014
Shares 16,822 Value ($000) $256 Avg Close — Range —
Q3 2013
Shares 10,568 Value ($000) $169 Avg Close — Range —
Q2 2013
Shares 10,537 Value ($000) $167 Avg Close — Range —