Updated Jul 16, 2026
KILMER HENRY W has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $664K.
Henry W. Kilmer serves as the Vice President of Network Strategy at Cogent Communications Holdings, Inc., a company known for carrying a significant portion of the world's internet traffic. His role involves overseeing the strategic direction of the company's network operations.
| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-15 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | S — Open-market sale | 2.4K | $17.01 | $41K |
| 2026-03-09 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | S — Open-market sale | 2.4K | $23.35 | $56K |
| 2025-09-05 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | S — Open-market sale | 2.4K | $36.99 | $89K |
| 2025-06-06 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | S — Open-market sale | 2.4K | $47.95 | $115K |
| 2024-12-13 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | S — Open-market sale | 4.8K | $75.61 | $363K |
| 2024-12-04 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | S — Open-market sale | 2.4K | $0.00 | |
| 2024-12-01 | CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | A — Grant or award | 2.4K | $0.00 |
Henry W. Kilmer serves as the Vice President of Network Strategy at Cogent Communications Holdings, Inc., a company known for carrying a significant portion of the world's internet traffic. His role involves overseeing the strategic direction of the company's network operations.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 6 open-market sales ($664K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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