ZIX CORP

CUSIP: 98974p100 Class: COM

Caprock Group, LLC's Holding History (CIK: 0001610769)

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

Q1 2017
Shares 12,470 Value ($000) $60 Avg Close — Range —
Q4 2016
Shares 12,470 Value ($000) $62 Avg Close — Range —