ZIX CORP

CUSIP: 98974P100 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q3 2021
Shares 2,897,057 Value ($000) $20,482 Avg Close — Range —
Q2 2021
Shares 3,291,407 Value ($000) $23,205 Avg Close — Range —
Q1 2021
Shares 3,290,391 Value ($000) $24,842 Avg Close — Range —
Q4 2020
Shares 3,135,951 Value ($000) $27,063 Avg Close — Range —
Q3 2020
Shares 2,838,262 Value ($000) $16,577 Avg Close — Range —
Q2 2020
Shares 2,750,486 Value ($000) $18,979 Avg Close — Range —
Q1 2020
Shares 3,448,497 Value ($000) $14,863 Avg Close — Range —
Q4 2019
Shares 2,705,364 Value ($000) $18,342 Avg Close — Range —
Q3 2019
Shares 2,714,976 Value ($000) $19,656 Avg Close — Range —
Q2 2019
Shares 2,665,146 Value ($000) $24,226 Avg Close — Range —
Q1 2019
Shares 2,668,508 Value ($000) $18,359 Avg Close — Range —
Q4 2018
Shares 2,659,564 Value ($000) $15,240 Avg Close — Range —
Q3 2018
Shares 2,954,764 Value ($000) $16,399 Avg Close — Range —
Q2 2018
Shares 2,920,852 Value ($000) $15,743 Avg Close — Range —
Q1 2018
Shares 2,622,266 Value ($000) $11,197 Avg Close — Range —
Q4 2017
Shares 2,457,405 Value ($000) $10,763 Avg Close — Range —
Q3 2017
Shares 2,448,516 Value ($000) $11,973 Avg Close — Range —
Q2 2017
Shares 2,211,046 Value ($000) $12,581 Avg Close — Range —
Q1 2017
Shares 2,134,718 Value ($000) $10,268 Avg Close — Range —
Q4 2016
Shares 2,034,501 Value ($000) $10,051 Avg Close — Range —
Q3 2016
Shares 1,995,310 Value ($000) $8,181 Avg Close — Range —
Q2 2016
Shares 1,977,013 Value ($000) $7,413 Avg Close — Range —
Q1 2016
Shares 1,952,874 Value ($000) $7,675 Avg Close — Range —
Q4 2015
Shares 1,896,171 Value ($000) $9,633 Avg Close — Range —
Q3 2015
Shares 1,881,178 Value ($000) $7,920 Avg Close — Range —
Q2 2015
Shares 1,821,778 Value ($000) $9,419 Avg Close — Range —
Q1 2015
Shares 1,811,294 Value ($000) $7,118 Avg Close — Range —
Q4 2014
Shares 1,808,619 Value ($000) $6,511 Avg Close — Range —
Q3 2014
Shares 1,716,701 Value ($000) $5,871 Avg Close — Range —
Q2 2014
Shares 1,721,060 Value ($000) $5,886 Avg Close — Range —
Q1 2014
Shares 1,700,424 Value ($000) $7,040 Avg Close — Range —
Q4 2013
Shares 1,629,157 Value ($000) $7,429 Avg Close — Range —
Q3 2013
Shares 1,622,585 Value ($000) $7,934 Avg Close — Range —
Q2 2013
Shares 1,617,052 Value ($000) $6,840 Avg Close — Range —