Tucows's three largest insider shareholders as of September 05, 2026 are Master Fund Ltd. Blacksheep (TenPercentOwner, 1.05Mn shares), Master Fund Ltd. Blacksheep (TenPercentOwner, 1.05Mn shares), Elliot Noss (Chief Executive Officer, 423.05K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Master Fund Ltd. Blacksheep | TenPercentOwner | 1,047,123 | 0 | 1,047,123 | 64.6% | 02 Feb, 2023 |
| 2 | Elliot Noss | Chief Executive Officer | 423,048 | 0 | 423,048 | 26.1% | 12 Jan, 2026 |
| 3 | David John Woroch | Ceo Tucows Domains Services | 59,614 | 0 | 59,614 | 3.7% | 16 Aug, 2023 |
| 4 | Bret Fausett | Chief Legal Officer Vp | 31,105 | 0 | 31,105 | 1.9% | 16 Aug, 2023 |
| 5 | Robin Chase | Director | 29,172 | 0 | 29,172 | 1.8% | 09 Nov, 2023 |
| 6 | Allen Karp | Director | 0 | 15,014 | 15,014 | 0.9% | 26 Nov, 2021 |
| 7 | Davinder Singh | Cfo | 7,763 | 0 | 7,763 | 0.5% | 16 Aug, 2023 |
| 8 | Michael Goldstein | Chief Revenue Officer Ting | 5,372 | 0 | 5,372 | 0.3% | 03 Dec, 2021 |
| 9 | Justin Reilly | Ceo Wavelo | 1,944 | 0 | 1,944 | 0.1% | 16 Aug, 2023 |
| 10 | Michael Alan Koenig | Chief Operating Officer | 975 | 0 | 975 | 0.1% | 16 Aug, 2023 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 02 Jun, 2026 | Sandra Carola Matz-Cerf | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 02 Jun, 2026 | Lee Matheson | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 02 Jun, 2026 | Marlene Carl | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 02 Jun, 2026 | Christian Stephan Uhrenbacher | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 02 Jun, 2026 | Allen Gordon Taylor | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 02 Jun, 2026 | Jeffrey Stewart Donald Tory | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 02 Jun, 2026 | Laurenz Malte Nienaber | Director | Acquired A | 3,750 | $0.00 | $0 | 3,750 | Direct |
| 24 Dec, 2025 | Elliot Noss | Director | Disposed G | 20,250 | $0.00 | $0 | 423,048 | Direct |
| 26 Nov, 2025 | David John Woroch | Chief Executive Officer | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 26 Nov, 2025 | David John Woroch | Chief Executive Officer | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 26 Nov, 2025 | David John Woroch | Chief Executive Officer | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 26 Nov, 2025 | David John Woroch | Chief Executive Officer | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 08 Sep, 2025 | Ivan Ivanov | Chief Financial Officer | Acquired A | 20,000 | $0.00 | $0 | 20,000 | Direct |
| 17 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 500 | $22.52 | $11.26K | 443,298 | Direct |
| 10 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 400 | $22.44 | $8.98K | 446,098 | Direct |
| 10 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 1,600 | $21.73 | $34.77K | 444,498 | Direct |
| 11 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 700 | $22.86 | $16.00K | 443,798 | Direct |
| 07 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 2,600 | $20.51 | $53.33K | 449,498 | Direct |
| 08 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 2,500 | $20.81 | $52.03K | 446,998 | Direct |
| 09 Jul, 2025 | Elliot Noss | Chief Executive Officer | Disposed S | 500 | $21.21 | $10.61K | 446,498 | Direct |