ZIX CORP

CUSIP: 98974P100 Class: COM

Port Capital LLC's Holding History (CIK: 0001729212)

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

Q4 2019
Shares 81,944 Value ($000) $556 Avg Close — Range —
Q3 2019
Shares 70,694 Value ($000) $512 Avg Close — Range —
Q2 2019
Shares 70,694 Value ($000) $643 Avg Close — Range —
Q1 2019
Shares 70,694 Value ($000) $486 Avg Close — Range —
Q4 2018
Shares 54,300 Value ($000) $311 Avg Close — Range —