ZIX CORP

CUSIP: 98974P100 Class: COM

HighTower Advisors, LLC's Holding History (CIK: 0001462245)

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

Q2 2017
Shares 185,689 Value ($000) $1,058 Avg Close — Range —
Q1 2017
Shares 236,180 Value ($000) $1,136 Avg Close — Range —
Q4 2016
Shares 237,373 Value ($000) $1,173 Avg Close — Range —
Q3 2016
Shares 235,180 Value ($000) $963 Avg Close — Range —
Q2 2016
Shares 235,380 Value ($000) $883 Avg Close — Range —
Q1 2016
Shares 239,507 Value ($000) $941 Avg Close — Range —
Q4 2015
Shares 239,180 Value ($000) $1,215 Avg Close — Range —
Q3 2015
Shares 240,080 Value ($000) $1,011 Avg Close — Range —
Q2 2015
Shares 240,080 Value ($000) $1,241 Avg Close — Range —
Q1 2015
Shares 266,180 Value ($000) $1,046 Avg Close — Range —
Q4 2014
Shares 266,680 Value ($000) $960 Avg Close — Range —
Q3 2014
Shares 266,680 Value ($000) $912 Avg Close — Range —
Q2 2014
Shares 266,680 Value ($000) $912 Avg Close — Range —
Q1 2014
Shares 266,680 Value ($000) $1,104 Avg Close — Range —
Q4 2013
Shares 266,680 Value ($000) $1,216 Avg Close — Range —
Q3 2013
Shares 266,680 Value ($000) $1,307 Avg Close — Range —
Q2 2013
Shares 218,480 Value ($000) $924 Avg Close — Range —