| 05 Mar 2026 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,850 | 22.63 USD | |
| 31 Dec 2025 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 19,400 | 0.00 USD | |
| 31 Dec 2025 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 100,000 | 0.00 USD | |
| 11 Dec 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 7,300 | 23.99 USD | |
| 01 Dec 2025 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 2,400 | 0.00 USD | |
| 02 Sept 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,900 | 36.98 USD | |
| 09 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,900 | 48.04 USD | |
| 28 May 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 100 | 47.67 USD | |
| 16 May 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 100 | 50.41 USD | |
| 03 Mar 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,900 | 72.06 USD | |
| 09 Jan 2025 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 19,400 | 0.00 USD | |
| 02 Dec 2024 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,800 | 81.58 USD | |
| 01 Dec 2024 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 2,400 | 0.00 USD | |
| 03 Sept 2024 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 2,400 | 69.68 USD | |
| 10 Jun 2024 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 2,400 | 52.61 USD | |
| 12 Mar 2024 | OTHER | COGENT COMMUNICATIONS HOLDINGS, INC. | 2,400 | 68.17 USD | |
| 03 Jan 2024 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 30,000 | 0.00 USD | |
| 03 Jan 2024 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 19,400 | 0.00 USD | |
| 01 Dec 2023 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,850 | 0.00 USD | |
| 04 Dec 2023 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 9,700 | 65.84 USD | |
| 05 Sept 2023 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,850 | 69.43 USD | |
| 05 Jun 2023 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,850 | 62.28 USD | |
| 09 May 2023 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 10,000 | 64.96 USD | |
| 03 Mar 2023 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 4,850 | 64.30 USD | |
| 03 Jan 2023 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 10,000 | 0.00 USD | |