ZIX CORP

CUSIP: 98974P100 Class: COM

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q2 2021
Shares 20,063 Value ($000) $141 Avg Close — Range —
Q4 2020
Shares 8,721 Value ($000) $75 Avg Close — Range —
Q2 2020
Shares 16,916 Value ($000) $117 Avg Close — Range —
Q4 2018
Shares 24,200 Value ($000) $139 Avg Close — Range —
Q3 2018
Shares 2,000 Value ($000) $11 Avg Close — Range —
Q1 2017
Shares 34,900 Value ($000) $168 Avg Close — Range —
Q4 2016
Shares 3,400 Value ($000) $17 Avg Close — Range —
Q3 2016
Shares 22,700 Value ($000) $93 Avg Close — Range —
Q2 2016
Shares 19,900 Value ($000) $75 Avg Close — Range —
Q4 2015
Shares 1,100 Value ($000) $6 Avg Close — Range —
Q3 2015
Shares 5,600 Value ($000) $24 Avg Close — Range —