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 |
| 2026-06-16 Sale | 2026-06-16 4:25 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 4,850 | $16.79 | $81,434 | 197,900 (Direct) | View |
| 2026-06-15 Sale | 2026-06-15 4:24 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | KILMER HENRY W VP OF NETWORK STRATEGY | 2,400 | $17.01 | $40,824 | 38,600 (Direct) | View |
| 2026-05-28 Sale | 2026-05-28 4:01 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 2,800 | $20.36 | $57,008 | 21,094 (Direct) | View |
| 2026-05-14 Sale | 2026-05-18 4:12 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 3,300 | $16.22 | $53,518 | 10,245 (Direct) | View |
| 2026-04-01 Sale | 2026-04-02 4:26 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 58,667 | $0 | $0 | 868,133 (Indirect Direct) | View |
| 2026-03-06 Sale | 2026-03-09 08:52 am | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | KILMER HENRY W VP OF NETWORK STRATEGY | 2,400 | $23.35 | $56,040 | 41,000 (Direct) | View |
| 2026-03-05 Sale | 2026-03-05 4:57 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 2,206 | $23.03 | $50,804 | 20,449 (Direct) | View |
| 2026-03-05 Sale | 2026-03-05 4:42 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 3,300 | $22.99 | $75,867 | 10,100 (Direct) | View |
| 2026-03-05 Sale | 2026-03-05 4:20 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 4,850 | $22.63 | $109,756 | 202,750 (Direct) | View |
| 2025-12-11 Sale | 2025-12-12 4:21 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 7,300 | $23.99 | $175,127 | 88,200 (Direct) | View |
| 2025-12-08 Sale | 2025-12-08 4:12 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | KILMER HENRY W VP OF NETWORK STRATEGY | 4,800 | $19.79 | $94,992 | 33,800 (Direct) | View |
| 2025-12-02 Sale | 2025-12-02 7:48 pm | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 4,000 | $20.34 | $81,341 | 19,267 (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 |
| 2026-06-30 Option Award | 2026-07-01 5:17 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howell Deneen C Director | 3,445 | $0 | 32,330 (Direct) | View |
| 2026-06-30 Option Award | 2026-07-01 4:52 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | BROOKS STEVEN D Director | 3,445 | $0 | 58,693 (Direct) | View |
| 2026-06-30 Option Award | 2026-07-01 11:21 am | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | de Sa Paul Director | 3,445 | $0 | 33,792 (Direct) | View |
| 2026-06-30 Option Award | 2026-07-01 11:21 am | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howard Eve N Director | 3,445 | $0 | 27,306 (Direct) | View |
| 2026-06-30 Option Award | 2026-06-30 5:04 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 3,445 | $0 | 24,539 (Direct) | View |
| 2026-06-30 Option Award | 2026-06-30 5:03 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 3,445 | $0 | 13,690 (Direct) | View |
| 2026-06-30 Option Award | 2026-06-30 5:03 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Montagner Marc Director | 3,445 | $0 | 99,842 (Direct) | View |
| 2026-05-04 Gift | 2026-05-04 4:22 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 1,000,000 | $0 | 1,868,133 (Direct) | View |
| 2026-05-04 Option Award | 2026-05-04 4:22 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 1,000,000 | $0 | 1,868,133 (Direct) | View |
| 2026-04-01 Gift | 2026-04-02 4:26 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 29,333 | $0 | 868,133 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:39 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Montagner Marc Director | 3,445 | $0 | 96,397 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:38 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 3,445 | $0 | 13,545 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:37 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howell Deneen C Director | 3,445 | $0 | 28,885 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:34 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howard Eve N Director | 3,445 | $0 | 23,861 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:31 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 3,445 | $0 | 23,894 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:30 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | de Sa Paul Director | 3,445 | $0 | 30,347 (Direct) | View |
| 2026-03-31 Option Award | 2026-03-31 5:29 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | BROOKS STEVEN D Director | 3,445 | $0 | 55,248 (Direct) | View |
| 2025-12-31 Gift | 2026-01-05 4:44 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 229,657 | $0 | 926,800 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:44 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | 229,657 | $0 | 926,800 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:41 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Montagner Marc Director | 3,388 | $0 | 92,952 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:38 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Kennedy Sheryl Lynn Director | 3,388 | $0 | 13,400 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:38 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howell Deneen C Director | 3,388 | $0 | 25,440 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:37 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Howard Eve N Director | 3,388 | $0 | 20,416 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:37 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | FERGUSON Lewis H Director | 3,388 | $0 | 22,655 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:36 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | de Sa Paul Director | 3,388 | $0 | 26,902 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:35 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | BROOKS STEVEN D Director | 3,388 | $0 | 51,803 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:34 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 119,400 | $0 | 207,600 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:29 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | KILMER HENRY W VP OF NETWORK STRATEGY | 9,600 | $0 | 43,400 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:27 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Harris Mark Andrew VP & Chief Revenue Officer | 105,000 | $0 | 110,168 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-05 4:26 pm | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | Chang John B. VP & CHIEF LEGAL OFFICER | 109,600 | $0 | 190,717 (Direct) | View |
| 2025-12-01 Option Award | 2025-12-03 09:34 am | N/A N/A | COGENT COMMUNICATIONS HOLDINGS INC. | CCOI | WEED THADDEUS GERARD VICE PRESIDENT, CFO | 2,400 | $0 | 95,500 (Direct) | View |