Kilmer Henry W has filed 33 Form 4s with the SEC that we hold, all for Cogent Communications Holdings, INC. (CCOI), as VP OF NETWORK STRATEGY. Across all of them we count 0 purchases worth $0 and 22 sales worth $3.5M reported on Form 4. In the last 12 months: 0 purchases ($0) and 4 sales ($214.0K). The largest single trade was a sale of 4,800 shares of Cogent Communications Holdings, INC. worth $362.9K, dated 2024-12-12. Of 1 sale filed since we began reading the 10b5-1 checkbox, 0 (0%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-09-07 and the latest 2026-09-15.
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-09-07 | S, sale reported on Form 4 | 2,400 | $177.9K | 2021-09-07 |
| 2021-12-07 | S, sale reported on Form 4 | 2,400 | $187.0K | 2021-12-07 |
| 2021-12-13 | S, sale reported on Form 4 | 2,400 | $185.4K | 2021-12-13 |
| 2022-03-08 | S, sale reported on Form 4 | 2,400 | $150.5K | 2022-03-09 |
| 2022-06-07 | S, sale reported on Form 4 | 2,400 | $142.1K | 2022-06-07 |
| 2022-09-07 | S, sale reported on Form 4 | 2,400 | $129.2K | 2022-09-08 |
| 2022-12-06 | S, sale reported on Form 4 | 4,800 | $275.3K | 2022-12-08 |
| 2023-03-07 | S, sale reported on Form 4 | 2,400 | $152.4K | 2023-03-08 |
| 2023-06-06 | S, sale reported on Form 4 | 2,400 | $149.4K | 2023-06-07 |
| 2023-09-07 | S, sale reported on Form 4 | 2,400 | $166.0K | 2023-09-08 |
| 2023-12-07 | S, sale reported on Form 4 | 4,800 | $326.1K | 2023-12-08 |
| 2024-03-05 | S, sale reported on Form 4 | 2,400 | $176.3K | 2024-03-06 |
| 2024-06-06 | S, sale reported on Form 4 | 2,400 | $134.4K | 2024-06-07 |
| 2024-09-04 | S, sale reported on Form 4 | 2,400 | $166.8K | 2024-09-05 |
| 2024-12-12 | S, sale reported on Form 4 | 4,800 | $362.9K | 2024-12-13 |
| 2025-03-07 | S, sale reported on Form 4 | 2,400 | $174.2K | 2025-03-10 |
| 2025-06-06 | S, sale reported on Form 4 | 2,400 | $115.1K | 2025-06-09 |
| 2025-09-05 | S, sale reported on Form 4 | 2,400 | $88.8K | 2025-09-05 |
| 2025-12-08 | S, sale reported on Form 4 | 4,800 | $95.0K | 2025-12-08 |
| 2026-03-06 | S, sale reported on Form 4 | 2,400 | $56.0K | 2026-03-09 |
| 2026-06-15 | S, sale reported on Form 4 | 2,400 | $40.8K | 2026-06-15 |
| 2026-09-15 | S, sale reported on Form 4 | 2,400 | $22.1K | 2026-09-15 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1599812) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
Privacy · Terms
No password to create and no card required. We store your email address and nothing else.