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 |
| 2025-06-09 Sale | 2025-06-09 4:51 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 4,900 | $48.04 | $235,396 | 98,000 (Direct) | View |
| 2025-06-06 Sale | 2025-06-09 4:49 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | KILMER HENRY W VP OF NETWORK STRATEGY | 2,400 | $47.95 | $115,080 | 38,600 (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 | 2025-06-06 09:16 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | BUBECK JAMES CHIEF REVENUE OFFICER | 2,000 | $47.5 | $94,999 | 55,142 (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 |
| 2025-05-28 Sale | 2025-05-29 4:05 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 100 | $47.66 | $4,767 | 102,900 (Direct) | View |
| 2025-05-28 Sale | 2025-05-29 4:04 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 1,100 | $47.57 | $52,327 | 18,904 (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 |
| 2025-05-16 Sale | 2025-05-16 4:24 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 100 | $50.41 | $5,041 | 102,900 (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 |
| 2025-05-13 Sale | 2025-05-13 4:11 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 1,450 | $50.19 | $72,773 | 10,049 (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 |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-12-01 Option Award(A) | 2025-06-09 4:46 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | KILMER HENRY W VP OF NETWORK STRATEGY | 2,400 | $0 | 38,600 (Direct) | View |
| 2025-06-02 Gift | 2025-06-03 4:27 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Chang John B. VP & CHIEF LEGAL OFFICER | 398 | $0 | 79,936 (Direct) | View |
| 2025-05-13 Gift | 2025-05-15 4:13 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Chang John B. VP & CHIEF LEGAL OFFICER | 1,260 | $0 | 80,334 (Direct) | View |
| 2025-04-10 Gift | 2025-04-11 4:36 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Chang John B. VP & CHIEF LEGAL OFFICER | 357 | $0 | 80,586 (Direct) | View |
| 2025-03-31 Option Award | 2025-04-01 10:07 am | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howell Deneen C Director | 1,352 | $0 | 17,689 (Direct) | View |
| 2025-03-31 Option Award | 2025-03-31 5:23 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Montagner Marc Director | 1,352 | $0 | 85,201 (Direct) | View |
| 2025-03-31 Option Award | 2025-03-31 5:22 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 1,352 | $0 | 11,499 (Direct) | View |
| 2025-03-31 Option Award | 2025-03-31 5:22 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howard Eve N Director | 1,352 | $0 | 12,665 (Direct) | View |