X0306 4 2017-03-31 0 0000022701 COMMUNICATIONS SYSTEMS INC JCS 0001550300 FLUEGGE SCOTT 12946 66TH ST N WEST PALM BEACH FL 33412 0 1 0 0 President Common Stock 9829.2429 D Stock Option (Right-to-Buy) 4.4 2017-03-31 4 A 0 21243 0 A 2018-03-31 2024-03-31 Common Stock 21243 21243 D Reflects all Employee Stock Purchase Plan and ESOP issuances through March 31, 2017. Option vests as to 25% on each of the first four anniversaries of the date of grant. Suzette McNally, Attorney-in-Fact for Scott Fluegge 2017-04-04