ZIX CORP

CUSIP: 98974P100 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q3 2021
Shares 29,869 Value ($000) $211 Avg Close — Range —
Q2 2021
Shares 73,494 Value ($000) $518 Avg Close — Range —
Q1 2021
Shares 82,408 Value ($000) $622 Avg Close — Range —
Q4 2020
Shares 82,868 Value ($000) $715 Avg Close — Range —
Q3 2020
Shares 82,868 Value ($000) $484 Avg Close — Range —
Q2 2020
Shares 80,734 Value ($000) $557 Avg Close — Range —
Q1 2020
Shares 80,734 Value ($000) $348 Avg Close — Range —
Q4 2019
Shares 83,294 Value ($000) $565 Avg Close — Range —
Q3 2019
Shares 83,294 Value ($000) $603 Avg Close — Range —
Q2 2019
Shares 82,300 Value ($000) $748 Avg Close — Range —
Q1 2019
Shares 80,006 Value ($000) $550 Avg Close — Range —
Q4 2018
Shares 82,621 Value ($000) $473 Avg Close — Range —
Q3 2018
Shares 79,969 Value ($000) $444 Avg Close — Range —
Q2 2018
Shares 79,969 Value ($000) $431 Avg Close — Range —
Q1 2018
Shares 82,669 Value ($000) $353 Avg Close — Range —
Q4 2017
Shares 84,388 Value ($000) $370 Avg Close — Range —
Q3 2017
Shares 86,096 Value ($000) $421 Avg Close — Range —
Q2 2017
Shares 94,833 Value ($000) $540 Avg Close — Range —
Q1 2017
Shares 104,833 Value ($000) $504 Avg Close — Range —
Q4 2016
Shares 109,533 Value ($000) $541 Avg Close — Range —
Q3 2016
Shares 112,633 Value ($000) $462 Avg Close — Range —
Q2 2016
Shares 111,633 Value ($000) $419 Avg Close — Range —
Q1 2016
Shares 123,197 Value ($000) $484 Avg Close — Range —
Q4 2015
Shares 106,551 Value ($000) $541 Avg Close — Range —
Q3 2015
Shares 104,651 Value ($000) $441 Avg Close — Range —
Q2 2015
Shares 105,051 Value ($000) $543 Avg Close — Range —
Q1 2015
Shares 107,717 Value ($000) $423 Avg Close — Range —
Q4 2014
Shares 109,917 Value ($000) $396 Avg Close — Range —
Q3 2014
Shares 109,449 Value ($000) $374 Avg Close — Range —
Q2 2014
Shares 108,228 Value ($000) $370 Avg Close — Range —
Q1 2014
Shares 112,028 Value ($000) $464 Avg Close — Range —
Q4 2013
Shares 112,028 Value ($000) $511 Avg Close — Range —
Q3 2013
Shares 111,428 Value ($000) $545 Avg Close — Range —
Q2 2013
Shares 107,822 Value ($000) $456 Avg Close — Range —
Q1 2013
Shares 105,790 Value ($000) $379 Avg Close — Range —