| 04 May 2026 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 1,000,000 | 0.00 USD | |
| 04 May 2026 | GIFT | COGENT COMMUNICATIONS HOLDINGS, INC. | 1,000,000 | 0.00 USD | |
| 04 May 2026 | GIFT | COGENT COMMUNICATIONS HOLDINGS, INC. | 1,000,000 | 0.00 USD | |
| 31 Dec 2025 | GIFT | COGENT COMMUNICATIONS HOLDINGS, INC. | 229,657 | 0.00 USD | |
| 31 Dec 2025 | GIFT | COGENT COMMUNICATIONS HOLDINGS, INC. | 229,657 | 0.00 USD | |
| 31 Dec 2025 | GRANT_AWARD | COGENT COMMUNICATIONS HOLDINGS, INC. | 229,657 | 0.00 USD | |
| 08 Aug 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 818,909 | 27.50 USD | anomaly |
| 07 Aug 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 1,840,669 | 32.60 USD | anomaly |
| 16 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 | 47.14 USD | |
| 16 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 25,000 | 47.05 USD | |
| 13 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 | 47.42 USD | |
| 13 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 10,000 | 47.34 USD | |
| 12 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 10,000 | 47.83 USD | |
| 12 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 | 47.87 USD | |
| 11 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 10,000 | 48.35 USD | |
| 11 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 | 48.55 USD | |
| 10 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 15,000 | 48.63 USD | |
| 10 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 40,000 | 48.70 USD | |
| 09 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 40,000 | 48.51 USD | |
| 09 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 15,000 | 48.99 USD | |
| 05 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 40,000 | 47.29 USD | |
| 05 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 35,000 | 47.31 USD | |
| 06 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 50,000 | 47.78 USD | |
| 06 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 30,000 | 47.78 USD | |
| 04 Jun 2025 | SALE | COGENT COMMUNICATIONS HOLDINGS, INC. | 25,000 | 47.76 USD | |