| 15 nov. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 9 616 | 0.65 USD | |
| 16 nov. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 4 630 | 0.62 USD | |
| 17 nov. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 4 600 | 0.62 USD | |
| 20 nov. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 2 488 | 0.61 USD | |
| 14 nov. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 2 600 | 0.68 USD | |
| 03 nov. 2023 | OTHER | COMMUNICATIONS SYSTEMS INC | 301 587 | 0.00 USD | |
| 13 sept. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 22 100 | 1.01 USD | |
| 12 sept. 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 2 900 | 1.04 USD | |
| 21 août 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 50 000 | 1.05 USD | |
| 14 août 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 50 000 | 1.12 USD | |
| 15 juin 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 5 310 | 1.40 USD | |
| 14 juin 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 5 306 | 1.42 USD | |
| 13 juin 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 11 016 | 1.46 USD | |
| 12 juin 2023 | SALE | COMMUNICATIONS SYSTEMS INC | 16 867 | 1.45 USD | |
| 14 déc. 2022 | SALE | COMMUNICATIONS SYSTEMS INC | 44 650 | 1.85 USD | |
| 15 déc. 2022 | SALE | COMMUNICATIONS SYSTEMS INC | 65 969 | 1.69 USD | |
| 28 sept. 2022 | OTHER | COMMUNICATIONS SYSTEMS INC | 1 008 005 | 0.00 USD | |
| 28 mars 2022 | GRANT_AWARD | COMMUNICATIONS SYSTEMS INC | 2 733 062 | — | |
| 28 mars 2022 | GRANT_AWARD | COMMUNICATIONS SYSTEMS INC | 12 500 | — | |