Cogent Communications Holdings, Inc. (CCOI) Insider Ownership

Historic Insider Ownership Trends

Cogent Communications Holdings's top three insider shareholders as of April 17, 2026 are Dave Schaeffer (Chairman, Ceo, And President, 868.13K shares), Thaddeus Gerard Weed (Vice President, Cfo, 202.75K shares), John B. Chang (Vp Chief Legal Officer, 188.85K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Dave Schaeffer Chairman, Ceo, And President 609,143 258,990 02 Apr, 2026
Thaddeus Gerard Weed Vice President, Cfo 202,750 0 05 Mar, 2026
John B. Chang Vp Chief Legal Officer 188,847 0 05 Jan, 2026
Mark Andrew Harris Vp Chief Revenue Officer 110,168 0 05 Jan, 2026
Raymond B Kummer Cto Emeritus 60,000 0 03 Jan, 2023
Steven D Brooks - 55,248 0 31 Mar, 2026
James Bubeck Chief Revenue Officer 55,142 0 05 Jun, 2025
Henry W Kilmer Vp Of Network Strategy 41,000 0 08 Mar, 2026
Sa Paul De - 30,347 0 31 Mar, 2026
Sean Robert Wallace Vp, Cfo Treasurer 29,225 0 03 Mar, 2022
Deneen C Howell - 28,885 0 31 Mar, 2026
Lewis H Ferguson - 23,894 0 31 Mar, 2026
Eve N Howard - 23,861 0 31 Mar, 2026
Greg W O'Connor Vp, Chief Operating Officer 16,000 0 03 May, 2023
Carolyn Katz - 15,750 0 01 Oct, 2021
David Allen Kapp Vp Optical Transport Engr Cto 15,600 0 03 Jan, 2023
Sheryl Lynn Kennedy - 13,545 0 31 Mar, 2026
Blake Bath - 12,606 0 31 Mar, 2025
David Allen Kapp Vp Chief Technical Officer 6,600 0 14 Aug, 2023
John B. Chang Vp Chief Legal Officer 0 3,089 15 May, 2025
John B. Chang Vp Chief Legal Officer 0 900 20 Dec, 2023
John B. Chang Vp Chief Legal Officer 0 375 01 Feb, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Dave Schaeffer common stock D 58,667 $0.00 638,476 D D
01 Apr, 2026 Dave Schaeffer common stock D 29,333 $0.00 609,143 D G
01 Apr, 2026 Dave Schaeffer common stock A 29,333 $0.00 258,990 I G
31 Mar, 2026 Sa Paul De common stock A 3,445 $0.00 30,347 D A
31 Mar, 2026 Sheryl Lynn Kennedy common stock A 3,445 $0.00 13,545 D A
31 Mar, 2026 Lewis H Ferguson common stock A 3,445 $0.00 23,894 D A
31 Mar, 2026 Deneen C Howell common stock A 3,445 $0.00 28,885 D A
31 Mar, 2026 Steven D Brooks common stock A 3,445 $0.00 55,248 D A
31 Mar, 2026 Marc Montagner common stock A 3,445 $0.00 96,397 D A
31 Mar, 2026 Eve N Howard common stock A 3,445 $0.00 23,861 D A
06 Mar, 2026 Henry W Kilmer common stock D 2,400 $23.35 41,000 D S
05 Mar, 2026 Lewis H Ferguson common stock D 2,206 $23.03 20,449 D S
05 Mar, 2026 Sheryl Lynn Kennedy common stock D 3,300 $22.99 10,100 D S
05 Mar, 2026 Thaddeus Gerard Weed common stock D 4,850 $22.63 202,750 D S
31 Dec, 2025 Deneen C Howell common stock A 3,388 $0.00 25,440 D A
31 Dec, 2025 Steven D Brooks common stock A 3,388 $0.00 51,803 D A
31 Dec, 2025 Mark Andrew Harris common stock A 5,000 $0.00 10,168 D A
31 Dec, 2025 Marc Montagner common stock A 3,388 $0.00 92,952 D A
31 Dec, 2025 Thaddeus Gerard Weed common stock A 19,400 $0.00 107,600 D A
31 Dec, 2025 Sa Paul De common stock A 3,388 $0.00 26,902 D A