COMMUNICATIONS SYS INC

CUSIP: 203900105 Class: CMN

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2021
Shares 20,085 Value ($000) $48 Avg Close — Range —
Q3 2021
Shares 20,195 Value ($000) $175 Avg Close — Range —
Q2 2021
Shares 20,717 Value ($000) $149 Avg Close — Range —
Q1 2021
Shares 20,700 Value ($000) $123 Avg Close — Range —
Q4 2020
Shares 22,569 Value ($000) $103 Avg Close — Range —
Q3 2020
Shares 26,150 Value ($000) $100 Avg Close — Range —
Q2 2020
Shares 26,611 Value ($000) $135 Avg Close — Range —
Q1 2020
Shares 25,917 Value ($000) $115 Avg Close — Range —
Q4 2019
Shares 26,533 Value ($000) $164 Avg Close — Range —
Q3 2019
Shares 16,714 Value ($000) $76 Avg Close — Range —
Q2 2019
Shares 22,120 Value ($000) $67 Avg Close — Range —
Q1 2019
Shares 22,120 Value ($000) $59 Avg Close — Range —
Q4 2018
Shares 22,320 Value ($000) $45 Avg Close — Range —
Q3 2018
Shares 23,188 Value ($000) $64 Avg Close — Range —
Q2 2018
Shares 23,218 Value ($000) $88 Avg Close — Range —
Q1 2018
Shares 23,118 Value ($000) $87 Avg Close — Range —
Q4 2017
Shares 23,134 Value ($000) $82 Avg Close — Range —
Q3 2017
Shares 21,494 Value ($000) $91 Avg Close — Range —
Q2 2017
Shares 21,794 Value ($000) $95 Avg Close — Range —
Q1 2017
Shares 20,356 Value ($000) $90 Avg Close — Range —
Q4 2016
Shares 19,411 Value ($000) $90 Avg Close — Range —
Q3 2016
Shares 20,020 Value ($000) $96 Avg Close — Range —
Q2 2016
Shares 21,397 Value ($000) $149 Avg Close — Range —
Q1 2016
Shares 21,363 Value ($000) $157 Avg Close — Range —
Q4 2015
Shares 21,363 Value ($000) $166 Avg Close — Range —
Q3 2015
Shares 21,363 Value ($000) $179 Avg Close — Range —
Q2 2015
Shares 20,732 Value ($000) $218 Avg Close — Range —
Q1 2015
Shares 22,279 Value ($000) $254 Avg Close — Range —
Q4 2014
Shares 23,530 Value ($000) $247 Avg Close — Range —
Q3 2014
Shares 24,671 Value ($000) $275 Avg Close — Range —
Q2 2014
Shares 25,524 Value ($000) $318 Avg Close — Range —
Q1 2014
Shares 25,453 Value ($000) $328 Avg Close — Range —
Q4 2013
Shares 24,565 Value ($000) $273 Avg Close — Range —
Q3 2013
Shares 24,765 Value ($000) $280 Avg Close — Range —
Q2 2013
Shares 27,705 Value ($000) $266 Avg Close — Range —