COMMUNICATIONS SYS INC

CUSIP: 203900105 Class: CMN

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q2 2021
Shares 26,586 Value ($000) $191 Avg Close — Range —
Q1 2021
Shares 38,615 Value ($000) $230 Avg Close — Range —