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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker CCOI
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | $9.21 | $22.1K Sale | Form 4 ↗ |
| Sep 2, 2026 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 4,850 | $9.37 | $45.4K Sale | Form 4 ↗ |
| Jun 16, 2026 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 4,850 | $16.79 | $81.4K Sale | Form 4 ↗ |
| Jun 15, 2026 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | $17.01 | $40.8K Sale | Form 4 ↗ |
| May 28, 2026 | Lewis H. Ferguson Director | CCOI Cogent Communications Holdings, Inc. | Sale | 2,800 | $20.36 | $57.0K Sale | Form 4 ↗ |
| May 14, 2026 | Sheryl Lynn Kennedy Director | CCOI Cogent Communications Holdings, Inc. | Sale | 3,300 | $16.22 | $53.5K Sale | Form 4 ↗ |
| Mar 6, 2026 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | $23.35 | $56.0K Sale | Form 4 ↗ |
| Mar 5, 2026 | Sheryl Lynn Kennedy Director | CCOI Cogent Communications Holdings, Inc. | Sale | 3,300 | $22.99 | $75.9K Sale | Form 4 ↗ |
| Mar 5, 2026 | Lewis H. Ferguson Director | CCOI Cogent Communications Holdings, Inc. | Sale | 2,206 | $23.03 | $50.8K Sale | Form 4 ↗ |
| Mar 5, 2026 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 4,850 | $22.63 | $109.8K Sale | Form 4 ↗ |
| Dec 11, 2025 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 7,300 | $23.99 | $175.1K Sale | Form 4 ↗ |
| Dec 8, 2025 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 4,800 | $19.79 | $95.0K Sale | Form 4 ↗ |
| Dec 2, 2025 | Lewis H. Ferguson Director | CCOI Cogent Communications Holdings, Inc. | Sale | 4,000 | $20.34 | $81.4K Sale | Form 4 ↗ |
| Dec 1, 2025 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | — | $0 Sale | Form 4 ↗ |
| Nov 11, 2025 | Sheryl Lynn Kennedy Director | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | $21.34 | $51.2K Sale | Form 4 ↗ |
| Sep 5, 2025 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | $36.99 | $88.8K Sale | Form 4 ↗ |
| Sep 2, 2025 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 4,900 | $36.98 | $181.2K Sale | Form 4 ↗ |
| Aug 21, 2025 | Sheryl Lynn Kennedy Director | CCOI Cogent Communications Holdings, Inc. | Sale | 2,000 | $36.35 | $72.7K Sale | Form 4 ↗ |
| Aug 8, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 818,909 | $27.50 | $22.5M Sale | Form 4 ↗ |
| Aug 7, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 1.84M | $32.60 | $60.0M Sale | Form 4 ↗ |
| Jun 16, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 25,000 | $47.05 | $1.2M Sale | Form 4 ↗ |
| Jun 16, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 45,000 | $47.14 | $2.1M Sale | Form 4 ↗ |
| Jun 13, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 10,000 | $47.34 | $473.4K Sale | Form 4 ↗ |
| Jun 13, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 45,000 | $47.42 | $2.1M Sale | Form 4 ↗ |
| Jun 12, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 10,000 | $47.83 | $478.3K Sale | Form 4 ↗ |
| Jun 12, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 45,000 | $47.87 | $2.2M Sale | Form 4 ↗ |
| Jun 11, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 10,000 | $48.35 | $483.5K Sale | Form 4 ↗ |
| Jun 11, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 45,000 | $48.55 | $2.2M Sale | Form 4 ↗ |
| Jun 10, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 15,000 | $48.63 | $729.5K Sale | Form 4 ↗ |
| Jun 10, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 40,000 | $48.70 | $1.9M Sale | Form 4 ↗ |
| Jun 9, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 15,000 | $48.99 | $734.9K Sale | Form 4 ↗ |
| Jun 9, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 40,000 | $48.51 | $1.9M Sale | Form 4 ↗ |
| Jun 9, 2025 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 4,900 | $48.04 | $235.4K Sale | Form 4 ↗ |
| Jun 6, 2025 | Henry W. Kilmer VP OF NETWORK STRATEGY | CCOI Cogent Communications Holdings, Inc. | Sale | 2,400 | $47.95 | $115.1K Sale | Form 4 ↗ |
| Jun 6, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 30,000 | $47.78 | $1.4M Sale | Form 4 ↗ |
| Jun 6, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 50,000 | $47.78 | $2.4M Sale | Form 4 ↗ |
| Jun 5, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 35,000 | $47.31 | $1.7M Sale | Form 4 ↗ |
| Jun 5, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 40,000 | $47.29 | $1.9M Sale | Form 4 ↗ |
| Jun 4, 2025 | James Bubeck CHIEF REVENUE OFFICER | CCOI Cogent Communications Holdings, Inc. | Sale | 2,000 | $47.50 | $95.0K Sale | Form 4 ↗ |
| Jun 4, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 25,000 | $47.76 | $1.2M Sale | Form 4 ↗ |
| Jun 4, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 50,000 | $47.76 | $2.4M Sale | Form 4 ↗ |
| Jun 3, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 15,000 | $46.86 | $702.9K Sale | Form 4 ↗ |
| Jun 3, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 50,000 | $47.00 | $2.4M Sale | Form 4 ↗ |
| Jun 2, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 15,000 | $46.13 | $692.0K Sale | Form 4 ↗ |
| Jun 2, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 50,000 | $46.38 | $2.3M Sale | Form 4 ↗ |
| May 30, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 25,000 | $45.90 | $1.1M Sale | Form 4 ↗ |
| May 29, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 25,000 | $46.90 | $1.2M Sale | Form 4 ↗ |
| May 28, 2025 | Dave Schaeffer CHAIRMAN, CEO, AND PRESIDENT, Director | CCOI Cogent Communications Holdings, Inc. | Sale | 20,000 | $47.41 | $948.2K Sale | Form 4 ↗ |
| May 28, 2025 | Thaddeus Gerard Weed VICE PRESIDENT, CFO | CCOI Cogent Communications Holdings, Inc. | Sale | 100 | $47.67 | $4,767 Sale | Form 4 ↗ |
| May 28, 2025 | Lewis H. Ferguson Director | CCOI Cogent Communications Holdings, Inc. | Sale | 1,100 | $47.57 | $52.3K Sale | Form 4 ↗ |
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