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).
| 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.
| 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 |