COGENT COMMUNICATIONS HOLDINGS, INC.
Insider Ownership
| 8-K | 34 | 06/02/2025 | 06/02/2025 |
| 8-K | 34 | 04/11/2025 | 04/11/2025 |
| 8-K | 34 | 04/04/2025 | 04/04/2025 |
| 8-K | 34 | 02/27/2025 | 02/27/2025 |
| 10-Q | 34 | 11/07/2024 | 09/30/2024 |
| 8-K | 34 | 11/07/2024 | 11/07/2024 |
| 8-K | 34 | 06/11/2024 | 06/11/2024 |
| 8-K | 34 | 06/06/2024 | 06/06/2024 |
| 8-K | 34 | 06/05/2024 | 06/05/2024 |
| 10-Q | 34 | 05/09/2024 | 03/31/2024 |
≥5% Ownership
| 4 | 05/27/2025 | 05/23/2025 | |
| 4 | 05/23/2025 | 05/22/2025 | |
| 4 | 05/22/2025 | 05/21/2025 | |
| 4 | 05/21/2025 | 05/20/2025 | |
| 4 | 05/19/2025 | 05/16/2025 | |
| 4/A | 05/19/2025 | 05/16/2025 | |
| 4 | 05/16/2025 | 05/16/2025 | |
| 4 | 05/16/2025 | 05/15/2025 | |
| 4 | 05/15/2025 | 05/15/2025 | |
| 4 | 05/15/2025 | 05/14/2025 |