ZYGO CORP

CUSIP: 989855101 Class: CMN

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q1 2014
Shares 430 Value ($000) $7 Avg Close — Range —
Q4 2013
Shares 772 Value ($000) $11 Avg Close — Range —
Q3 2013
Shares 936 Value ($000) $15 Avg Close — Range —
Q2 2013
Shares 788 Value ($000) $12 Avg Close — Range —