COMMUNICATIONS SYS INC

CUSIP: 203900105 Class: CMN

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q4 2017
Shares 10,800 Value ($000) $38 Avg Close — Range —
Q3 2017
Shares 10,800 Value ($000) $45 Avg Close — Range —
Q2 2017
Shares 10,800 Value ($000) $46 Avg Close — Range —
Q4 2016
Shares 11,500 Value ($000) $53 Avg Close — Range —
Q3 2016
Shares 10,500 Value ($000) $49 Avg Close — Range —