Cogent Communications Holdings, Inc. (CCOI) Insider Ownership

Historic Insider Ownership Trends

Through the 90-day period concluding February 19, 2026, Cogent Communications Holdings's top three insider stakeholders include Chairman And Ceo And And President Dave Schaeffer (926.80K shares), Vice President And Cfo Thaddeus Gerard Weed (207.60K shares), Vp & Chief Legal Officer John B. Chang (191.94K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Dave Schaeffer Chairman And Ceo And And President 926,800 05 Jan, 2026
Thaddeus Gerard Weed Vice President And Cfo 207,600 05 Jan, 2026
John B. Chang Vp & Chief Legal Officer 191,936 05 Jan, 2026
Mark Andrew Harris Vp & Chief Revenue Officer 110,168 05 Jan, 2026
Marc Montagner 92,952 05 Jan, 2026
Raymond B Kummer Cto Emeritus 60,000 04 Jan, 2023
James Bubeck Chief Revenue Officer 55,142 06 Jun, 2025
Steven D Brooks 51,803 05 Jan, 2026
Henry W Kilmer Vp Of Network Strategy 43,400 05 Jan, 2026
Timothy G Oneill Vp Construction 33,600 03 Jun, 2021
Sean Robert Wallace Vp And Cfo & Treasurer 29,225 03 Mar, 2022
Sa Paul De 26,902 05 Jan, 2026
Deneen C Howell 25,440 05 Jan, 2026
Lewis H Ferguson 22,655 05 Jan, 2026
Eve N Howard 20,416 05 Jan, 2026
Greg W O'Connor Vp And Chief Operating Officer 16,000 03 May, 2023
Carolyn Katz 15,750 01 Oct, 2021
Sheryl Lynn Kennedy 13,400 05 Jan, 2026
Blake Bath 12,606 31 Mar, 2025
David Allen Kapp Vp & Chief Technical Officer 6,600 14 Aug, 2023

* 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
31 Dec, 2025 Dave Schaeffer common stock A 229,657 $0.00 229,657 I G
31 Dec, 2025 Dave Schaeffer common stock D 229,657 $0.00 697,143 D G
31 Dec, 2025 Dave Schaeffer common stock A 229,657 $0.00 926,800 D A
31 Dec, 2025 Thaddeus Gerard Weed common stock A 100,000 $0.00 207,600 D A
31 Dec, 2025 Thaddeus Gerard Weed common stock A 19,400 $0.00 107,600 D A
31 Dec, 2025 Steven D Brooks common stock A 3,388 $0.00 51,803 D A
31 Dec, 2025 Lewis H Ferguson common stock A 3,388 $0.00 22,655 D A
31 Dec, 2025 Marc Montagner common stock A 3,388 $0.00 92,952 D A
31 Dec, 2025 Henry W Kilmer common stock A 9,600 $0.00 43,400 D A
31 Dec, 2025 John B. Chang common stock A 100,000 $0.00 188,847 D A
31 Dec, 2025 John B. Chang common stock A 9,600 $0.00 88,847 D A
31 Dec, 2025 Sheryl Lynn Kennedy common stock A 3,388 $0.00 13,400 D A
31 Dec, 2025 Sa Paul De common stock A 3,388 $0.00 26,902 D A
31 Dec, 2025 Deneen C Howell common stock A 3,388 $0.00 25,440 D A
31 Dec, 2025 Eve N Howard common stock A 3,388 $0.00 20,416 D A
31 Dec, 2025 Mark Andrew Harris common stock A 5,000 $0.00 10,168 D A
31 Dec, 2025 Mark Andrew Harris common stock A 100,000 $0.00 110,168 D A
11 Dec, 2025 Thaddeus Gerard Weed common stock D 7,300 $23.99 88,200 D S
08 Dec, 2025 Henry W Kilmer common stock D 4,800 $19.79 33,800 D S
02 Dec, 2025 Lewis H Ferguson common stock D 4,000 $20.34 19,267 D S