ZIX CORP

CUSIP: 98974P100 Class: COM

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q3 2021
Shares 132,281 Value ($000) $936 Avg Close — Range —
Q2 2021
Shares 132,920 Value ($000) $938 Avg Close — Range —
Q1 2021
Shares 136,472 Value ($000) $1,031 Avg Close — Range —
Q4 2020
Shares 130,640 Value ($000) $1,128 Avg Close — Range —
Q3 2020
Shares 130,606 Value ($000) $763 Avg Close — Range —
Q2 2020
Shares 134,780 Value ($000) $930 Avg Close — Range —
Q1 2020
Shares 133,492 Value ($000) $576 Avg Close — Range —
Q4 2019
Shares 131,804 Value ($000) $894 Avg Close — Range —
Q3 2019
Shares 128,256 Value ($000) $929 Avg Close — Range —
Q2 2019
Shares 128,256 Value ($000) $1,166 Avg Close — Range —
Q1 2019
Shares 389,888 Value ($000) $2,683 Avg Close — Range —
Q4 2018
Shares 383,894 Value ($000) $2,200 Avg Close — Range —
Q3 2018
Shares 515,696 Value ($000) $2,863 Avg Close — Range —
Q2 2018
Shares 523,056 Value ($000) $2,820 Avg Close — Range —
Q1 2018
Shares 465,557 Value ($000) $1,988 Avg Close — Range —
Q4 2017
Shares 303,033 Value ($000) $1,328 Avg Close — Range —
Q3 2017
Shares 303,033 Value ($000) $1,482 Avg Close — Range —
Q2 2017
Shares 303,033 Value ($000) $1,725 Avg Close — Range —
Q1 2017
Shares 303,033 Value ($000) $1,458 Avg Close — Range —
Q4 2016
Shares 303,033 Value ($000) $1,497 Avg Close — Range —
Q3 2016
Shares 303,033 Value ($000) $1,243 Avg Close — Range —
Q2 2016
Shares 301,490 Value ($000) $1,131 Avg Close — Range —
Q1 2016
Shares 162,633 Value ($000) $640 Avg Close — Range —
Q4 2015
Shares 88,900 Value ($000) $452 Avg Close — Range —
Q3 2015
Shares 88,900 Value ($000) $375 Avg Close — Range —
Q2 2015
Shares 88,900 Value ($000) $460 Avg Close — Range —
Q1 2015
Shares 88,900 Value ($000) $350 Avg Close — Range —
Q4 2014
Shares 88,900 Value ($000) $321 Avg Close — Range —
Q3 2014
Shares 88,900 Value ($000) $305 Avg Close — Range —
Q2 2014
Shares 88,900 Value ($000) $305 Avg Close — Range —
Q1 2014
Shares 88,900 Value ($000) $369 Avg Close — Range —
Q4 2013
Shares 88,900 Value ($000) $406 Avg Close — Range —
Q3 2013
Shares 88,900 Value ($000) $433 Avg Close — Range —
Q2 2013
Shares 88,900 Value ($000) $385 Avg Close — Range —