Insider Transactions Reported by 21 Insiders of COGENT COMMUNICATIONS HOLDINGS, INC.

Symbol
CCOI on Nasdaq
Location
Washington, DC

Insiders trading volume in the past year

COGENT COMMUNICATIONS HOLDINGS, INC. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
DAVE SCHAEFFER CHAIRMAN, CEO, AND PRESIDENT, Director $22,549,043 -$132,311,918 -85% 31 Dec 2025
John B. Chang Vp & Chief Legal Officer $4,640,144 31 Dec 2025
Thaddeus G. Weed Vice President, Cfo $4,588,232 -$706,247 -13% 05 Mar 2026
Raymond B. Kummer CTO Emeritus $4,560,000 03 Jan 2023
Mark Andrew Harris VP & Chief Revenue Officer $2,680,387 31 Dec 2025
James Bubeck Chief Revenue Officer $2,619,222 -$94,999 -3.5% 04 Jun 2025
TIMOTHY G. ONEILL VP Construction $2,553,600 02 Jun 2021
Marc Montagner Director $2,261,522 31 Dec 2025
Sean R. Wallace VP, CFO & Treasurer $2,221,100 02 Mar 2022
STEVEN D. BROOKS Director $1,260,366 31 Dec 2025
Greg W. O'Connor Vp, Chief Operating Officer $1,216,000 03 May 2023
Jeffrey S Danielson VP Infrastructure $1,216,000 02 Aug 2023
CAROLYN KATZ Director $1,197,000 01 Oct 2021
HENRY W. KILMER Vp Of Network Strategy $957,350 -$354,888 -27% 06 Mar 2026
Blake Bath Director $874,415 31 Mar 2025
de Sa Paul Director $654,525 31 Dec 2025
Deneen C. Howell Director $618,955 31 Dec 2025
David Allen Kapp Vp & Chief Technical Officer $501,600 10 Aug 2023
Eve N. Howard Director $496,721 31 Dec 2025
Lewis H. Ferguson Director $470,940 -$184,472 -28% 05 Mar 2026
Sheryl Lynn Kennedy Director $232,200 -$272,561 -54% 05 Mar 2026

Recent Insider Transactions by Companies or Individuals for COGENT COMMUNICATIONS HOLDINGS, INC.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
HENRY W. KILMER CCOI common stock Sale -5.53% $56,040 $23.35 -2,400 41,000 06 Mar 2026 Direct
Lewis H. Ferguson CCOI common stock Sale -9.74% $50,804 $23.03 -2,206 20,449 05 Mar 2026 Direct
Sheryl Lynn Kennedy CCOI common stock Sale -24.6% $75,867 $22.99 -3,300 10,100 05 Mar 2026 Direct
Thaddeus G. Weed CCOI common stock Sale -2.34% $109,756 $22.63 -4,850 202,750 05 Mar 2026 Direct
DAVE SCHAEFFER CCOI common stock Gift 229,657 229,657 31 Dec 2025 by family trust
DAVE SCHAEFFER CCOI common stock Gift -24.8% -229,657 697,143 31 Dec 2025 Direct
DAVE SCHAEFFER CCOI common stock Award 32.9% 229,657 926,800 31 Dec 2025 Direct
Marc Montagner CCOI common stock Award 3.78% 3,388 92,952 31 Dec 2025 Direct
Sheryl Lynn Kennedy CCOI common stock Award 33.8% 3,388 13,400 31 Dec 2025 Direct
Deneen C. Howell CCOI common stock Award 15.4% 3,388 25,440 31 Dec 2025 Direct
Eve N. Howard CCOI common stock Award 19.9% 3,388 20,416 31 Dec 2025 Direct
Lewis H. FERGUSON CCOI common stock Award 17.6% 3,388 22,655 31 Dec 2025 Direct
de Sa Paul CCOI common stock Award 14.4% 3,388 26,902 31 Dec 2025 Direct
STEVEN D. BROOKS CCOI common stock Award 7% 3,388 51,803 31 Dec 2025 Direct
Thaddeus G. Weed CCOI common stock Award 135.4% 119,400 207,600 31 Dec 2025 Direct
HENRY W. KILMER CCOI common stock Award 28.4% 9,600 43,400 31 Dec 2025 Direct
Mark Andrew Harris CCOI common stock Award 2031.7% 105,000 110,168 31 Dec 2025 Direct
John B. Chang CCOI common stock Award 138.3% 109,600 188,847 31 Dec 2025 Direct
THADDEUS GERARD WEED CCOI common stock Sale -7.64% $175,127 $23.99 -7,300 88,200 11 Dec 2025 Direct
HENRY W. KILMER CCOI common stock Sale -12.4% $94,992 $19.79 -4,800 33,800 08 Dec 2025 Direct
Lewis H. Ferguson CCOI common stock Sale -17.2% $81,341 $20.34 -4,000 19,267 02 Dec 2025 Direct
THADDEUS GERARD WEED CCOI common stock Award 2.58% 2,400 95,500 01 Dec 2025 Direct
John B. Chang CCOI common stock Award 3.12% 2,400 79,247 01 Dec 2025 Direct
HENRY W. KILMER CCOI common stock Sale 6.63% 2,400 38,600 01 Dec 2025 Direct
Sheryl Lynn Kennedy CCOI common stock Sale -19.3% $51,221 $21.34 -2,400 10,012 11 Nov 2025 Direct
Lewis H. FERGUSON CCOI common stock Award 11.5% 2,395 23,267 30 Sep 2025 Direct
de Sa Paul CCOI common stock Award 11.3% 2,395 23,514 30 Sep 2025 Direct
Deneen C. Howell CCOI common stock Award 12.2% 2,395 22,052 30 Sep 2025 Direct
STEVEN D. BROOKS CCOI common stock Award 5.2% 2,395 48,415 30 Sep 2025 Direct
Eve N. Howard CCOI common stock Award 16.4% 2,395 17,028 30 Sep 2025 Direct
Sheryl Lynn Kennedy CCOI common stock Award 23.9% 2,395 12,412 30 Sep 2025 Direct
Marc Montagner CCOI common stock Award 2.75% 2,395 89,564 30 Sep 2025 Direct
HENRY W. KILMER CCOI common stock Sale -6.22% $88,776 $36.99 -2,400 36,200 05 Sep 2025 Direct
Mark Andrew Harris CCOI common stock Award 14.8% 668 5,168 02 Sep 2025 Direct
THADDEUS GERARD WEED CCOI common stock Sale -5% $181,202 $36.98 -4,900 93,100 02 Sep 2025 Direct
Sheryl Lynn Kennedy CCOI common stock Sale -16.6% $72,700 $36.35 -2,000 10,017 21 Aug 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -54% $22,519,998 $27.50 -818,909 697,143 08 Aug 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -54.8% $60,005,809 $32.60 -1,840,669 1,516,052 07 Aug 2025 Direct
Eve N. Howard CCOI common stock Award 15.5% 1,968 14,633 30 Jun 2025 Direct
STEVEN D. BROOKS CCOI common stock Award 4.47% 1,968 46,020 30 Jun 2025 Direct
Marc Montagner CCOI common stock Award 2.31% 1,968 87,169 30 Jun 2025 Direct
Sheryl Lynn Kennedy CCOI common stock Award 19.6% 1,968 12,017 30 Jun 2025 Direct
Deneen C. Howell CCOI common stock Award 11.1% 1,968 19,657 30 Jun 2025 Direct
Lewis H. FERGUSON CCOI common stock Award 10.4% 1,968 20,872 30 Jun 2025 Direct
de Sa Paul CCOI common stock Award 10.3% 1,968 21,119 30 Jun 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -2.04% $3,297,609 $47.11 -70,000 3,356,721 16 Jun 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -1.58% $2,607,204 $47.40 -55,000 3,426,721 13 Jun 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -1.56% $2,632,372 $47.86 -55,000 3,481,721 12 Jun 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -1.53% $2,668,135 $48.51 -55,000 3,536,721 11 Jun 2025 Direct
DAVE SCHAEFFER CCOI common stock Sale -1.51% $2,677,490 $48.68 -55,000 3,591,721 10 Jun 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.