ZYGO CORP

CUSIP: 989855101 Class: CMN

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2014
Shares 9,800 Value ($000) $149 Avg Close — Range —
Q4 2013
Shares 7,800 Value ($000) $115 Avg Close — Range —
Q3 2013
Shares 7,800 Value ($000) $125 Avg Close — Range —
Q2 2013
Shares 7,800 Value ($000) $123 Avg Close — Range —