ZIX CORP

CUSIP: 98974P100 Class: COM

Penbrook Management LLC's Holding History (CIK: 0001381055)

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

Q2 2016
Shares 66,763 Value ($000) $250 Avg Close — Range —
Q1 2016
Shares 73,406 Value ($000) $289 Avg Close — Range —
Q4 2015
Shares 156,906 Value ($000) $797 Avg Close — Range —
Q3 2015
Shares 384,956 Value ($000) $1,621 Avg Close — Range —
Q2 2015
Shares 395,956 Value ($000) $2,047 Avg Close — Range —
Q1 2015
Shares 395,956 Value ($000) $1,556 Avg Close — Range —
Q4 2014
Shares 160,556 Value ($000) $578 Avg Close — Range —
Q3 2014
Shares 160,056 Value ($000) $547 Avg Close — Range —
Q2 2014
Shares 168,244 Value ($000) $575 Avg Close — Range —
Q1 2014
Shares 129,250 Value ($000) $589 Avg Close — Range —
Q4 2013
Shares 129,250 Value ($000) $589 Avg Close — Range —