Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-06-16 Sale | 2025-06-16 4:53 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 70,000 | $47.11 | $3,297,609 | 3,356,721 (Direct) | View |
| 2025-06-13 Sale | 2025-06-16 10:03 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 55,000 | $47.4 | $2,607,204 | 3,426,721 (Direct) | View |
| 2025-06-12 Sale | 2025-06-12 5:29 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 55,000 | $47.86 | $2,632,372 | 3,481,721 (Direct) | View |
| 2025-06-11 Sale | 2025-06-12 10:11 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 55,000 | $48.51 | $2,668,135 | 3,536,721 (Direct) | View |
| 2025-06-10 Sale | 2025-06-10 6:15 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 55,000 | $48.68 | $2,677,490 | 3,591,721 (Direct) | View |
| 2025-06-09 Sale | 2025-06-09 6:23 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 55,000 | $48.64 | $2,675,347 | 3,646,721 (Direct) | View |
| 2025-06-06 Sale | 2025-06-09 4:48 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 80,000 | $47.78 | $3,822,124 | 3,701,721 (Direct) | View |
| 2025-06-05 Sale | 2025-06-09 09:09 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 75,000 | $47.3 | $3,547,316 | 3,781,721 (Direct) | View |
| 2025-06-04 Sale | 2025-06-05 5:08 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 75,000 | $47.76 | $3,581,983 | 3,856,721 (Direct) | View |
| 2025-06-03 Sale | 2025-06-04 4:06 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 65,000 | $46.97 | $3,052,867 | 3,931,721 (Direct) | View |
| 2025-06-02 Sale | 2025-06-03 4:28 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 65,000 | $46.33 | $3,011,141 | 3,996,721 (Direct) | View |
| 2025-05-30 Sale | 2025-06-02 4:08 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 25,000 | $45.9 | $1,147,425 | 4,061,721 (Direct) | View |
| 2025-05-29 Sale | 2025-05-30 4:03 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 25,000 | $46.9 | $1,172,593 | 4,086,721 (Direct) | View |
| 2025-05-28 Sale | 2025-05-29 4:30 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 20,000 | $47.41 | $948,174 | 4,111,721 (Direct) | View |
| 2025-05-27 Sale | 2025-05-28 4:29 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 20,000 | $48.67 | $973,322 | 4,131,721 (Direct) | View |
| 2025-05-23 Sale | 2025-05-27 4:13 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 25,000 | $46.93 | $1,173,318 | 4,151,721 (Direct) | View |
| 2025-05-22 Sale | 2025-05-23 4:02 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 25,000 | $46.27 | $1,156,768 | 4,176,721 (Direct) | View |
| 2025-05-21 Sale | 2025-05-22 4:25 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 40,000 | $46.81 | $1,872,248 | 4,201,721 (Direct) | View |
| 2025-05-20 Sale | 2025-05-21 4:20 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 15,000 | $49.96 | $749,348 | 4,241,721 (Direct) | View |
| 2025-05-16 Sale | 2025-05-19 4:21 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 15,000 | $50.99 | $764,925 | 4,256,721 (Direct) | View |
| 2025-05-15 Sale | 2025-05-16 4:04 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 40,000 | $50.38 | $2,015,036 | 4,271,721 (Direct) | View |
| 2025-05-14 Sale | 2025-05-15 4:12 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 30,000 | $50.64 | $1,519,140 | 4,311,721 (Direct) | View |
| 2025-05-12 Sale | 2025-05-14 4:17 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 54,000 | $50.37 | $2,720,231 | 4,341,721 (Direct) | View |
| 2025-04-04 Sale | 2025-04-04 4:09 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 48,317 | $0 | $0 | 4,395,721 (Direct) | View |
| 2025-03-04 Sale | 2025-03-05 4:40 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 60,000 | $71.77 | $4,305,978 | 4,444,038 (Direct) | View |
| 2024-12-16 Sale | 2024-12-17 4:03 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 20,000 | $75.88 | $1,517,548 | 4,228,038 (Direct) | View |
| 2024-11-25 Sale | 2024-11-27 4:01 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 60,000 | $83.32 | $4,999,480 | 4,248,038 (Direct) | View |
| 2024-09-10 Sale | 2024-09-11 4:18 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 65,000 | $71.75 | $4,663,555 | 4,308,038 (Direct) | View |
| 2024-08-27 Sale | 2024-08-28 12:00 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 60,000 | $72.82 | $4,368,960 | 4,373,038 (Direct) | View |
| 2024-06-14 Sale | 2024-06-17 10:22 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 60,000 | $51.78 | $3,106,830 | 4,433,038 (Direct) | View |
| 2024-06-12 Sale | 2024-06-13 11:13 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 60,000 | $54.6 | $3,276,000 | 4,493,038 (Direct) | View |
| 2024-05-13 Sale | 2024-05-14 4:42 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 50,000 | $59.44 | $2,972,000 | 4,553,038 (Direct) | View |
| 2024-04-01 Sale | 2024-04-01 12:35 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 50,165 | $0 | $0 | 4,603,038 (Direct) | View |
| 2024-03-15 Sale | 2024-03-18 11:12 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 26,174 | $64.21 | $1,680,633 | 4,653,203 (Direct) | View |
| 2024-03-13 Sale | 2024-03-15 09:19 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 30,000 | $67.52 | $2,025,600 | 4,679,377 (Direct) | View |
| 2024-03-12 Sale(A) | 2024-03-14 10:58 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 50,000 | $68.12 | $3,406,000 | 4,709,377 (Direct) | View |
| 2024-03-11 Sale(A) | 2024-03-14 10:53 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 35,000 | $67.93 | $2,377,550 | 4,759,377 (Direct) | View |
| 2024-03-12 Sale | 2024-03-12 5:29 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 50,000 | $68.12 | $3,406,000 | 4,709,377 (Direct) | View |
| 2024-03-11 Sale | 2024-03-12 1:01 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT 10% Owner | 35,000 | $67.93 | $2,377,550 | 4,759,377 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-01-14 Option Award | 2025-01-15 4:32 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 180,000 | $0 | 4,504,038 (Direct) | View |