Henry W. Kilmer serves as Executive at COGENT COMMUNICATIONS GROUP INC, where they oversee executive responsibilities. Since joining the company, Henry W. Kilmer has executed 89 insider transactions totaling $7.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 8, 2025 involved selling 4,800 shares valued at $95.0K.
Henry W. Kilmer currently holds 33,800 shares of COGENT COMMUNICATIONS GROUP INC (CCOI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Henry W. Kilmer has been a net seller of CCOI stock. They have purchased $0 and sold $7.0M worth of shares.
Henry W. Kilmer's most recent insider trade was on Dec 8, 2025, when they sold 4,800 shares at $19.79 per share.
Get notified when new Form 4 filings are submitted
| $N/A |
| Discretionary |
| Sep 5, 2025 | CCOI | $88.8K | Sale | 2,400 | $36.99 | Discretionary |
| Sep 4, 2024 | CCOI | $166.8K | Sale | 2,400 | $69.51 | Discretionary |
| Jun 6, 2024 | CCOI | $134.4K | Sale | 2,400 | $56.00 | Discretionary |
| Mar 5, 2024 | CCOI | $176.3K | Sale | 2,400 | $73.47 | Discretionary |
| Jan 3, 2024 | CCOI | $0 | Award | 9,600 | $N/A | Discretionary |
| Jan 3, 2024 | CCOI | $0 | Award | 5,000 | $N/A | Discretionary |
| Dec 7, 2023 | CCOI | $326.1K | Sale | 4,800 | $67.94 | Discretionary |
| Dec 1, 2023 | CCOI | $0 | Award | 2,400 | $N/A | Discretionary |
| Sep 7, 2023 | CCOI | $166.0K | Sale | 2,400 | $69.16 | Discretionary |
| Jun 6, 2023 | CCOI | $149.4K | Sale | 2,400 | $62.23 | Discretionary |
| Mar 7, 2023 | CCOI | $152.4K | Sale | 2,400 | $63.51 | Discretionary |
| Jan 3, 2023 | CCOI | $0 | Award | 9,600 | $N/A | Discretionary |
| Dec 6, 2022 | CCOI | $275.3K | Sale | 4,800 | $57.36 | Discretionary |
| Dec 1, 2022 | CCOI | $0 | Award | 2,400 | $N/A | Discretionary |
| Sep 7, 2022 | CCOI | $129.2K | Sale | 2,400 | $53.85 | Discretionary |
| Jun 7, 2022 | CCOI | $142.1K | Sale | 2,400 | $59.20 | Discretionary |
| Mar 8, 2022 | CCOI | $150.5K | Sale | 2,400 | $62.72 | Discretionary |
| Jan 3, 2022 | CCOI | $0 | Award | 9,600 | $N/A | Discretionary |
| Dec 13, 2021 | CCOI | $185.4K | Sale | 2,400 | $77.26 | Discretionary |
| Dec 7, 2021 | CCOI | $187.0K | Sale | 2,400 | $77.90 | Discretionary |
| Dec 1, 2021 | CCOI | $0 | Award | 2,400 | $N/A | Discretionary |
| Sep 7, 2021 | CCOI | $177.9K | Sale | 2,400 | $74.13 | Discretionary |
| Jun 7, 2021 | CCOI | $182.6K | Sale | 2,400 | $76.09 | Discretionary |
| Mar 5, 2021 | CCOI | $138.3K | Sale | 2,400 | $57.64 | Discretionary |
| Feb 24, 2021 | CCOI | $0 | Award | 9,600 | $N/A | Discretionary |
| Dec 7, 2020 | CCOI | $139.0K | Sale | 2,400 | $57.93 | Discretionary |
| Dec 3, 2020 | CCOI | $139.2K | Sale | 2,400 | $58.01 | Discretionary |
| Dec 1, 2020 | CCOI | $0 | Award | 2,400 | $N/A | Discretionary |