Comparable stake leader
Norman Rentrop
SEC ownership of TUCOWS INC /PA/
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000909494.
Disclosed value leader
EdgePoint Investment Group Inc.
Comparable rows
50/50
Latest evidence
30 Jun 2026
- Public ticker
- TCX on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Norman Rentrop
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Norman Rentrop
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000909494
- Issuer location
- Toronto, Ontario, Canada
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of TUCOWS INC /PA/ (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Norman Rentrop
Disclosed value leader
EdgePoint Investment Grou...
Comparable rows
50/50
Latest evidence
30 Jun 2026
3/4/5
13D/G
13F
Lead comparable stake: 13%
13D/G row: Norman Rentrop
Showing 1-8 of 50 holder rows.
Quick read
Norman Rentrop leads the comparable SEC ownership view at 13%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Norman Rentrop's linked filing trail.
Comparable ownership
Top 5
Norman Rentrop
13%
Blacksheep Fund Management Ltd
9.9%
Monega Kapitalanlagegesellschaft mbH
5.4%
BlackRock, Inc.
4.8%
VANGUARD GROUP INC
4.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Norman Rentrop |
3/4/5
13D/G
10%+ Owner
|
13%
from 13D/G
|
$27,717,539
1,413,439 shares
|
— | 30 Dec 2024 |
| Blacksheep Fund Management Ltd |
13D/G
13F
Company
|
9.9%
|
$17,755,676
1,091,985 shares
|
$0 | 31 Mar 2025 |
| Monega Kapitalanlagegesellschaft mbH |
13D/G
|
5.4%
|
$9,774,780
601,155 shares
|
$0 | 31 Mar 2025 |
| BlackRock, Inc. |
13D/G
13F
Company
|
4.8%
|
$10,450,814
530,229 shares
|
$0 | 30 Jun 2025 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
4.5%
|
$7,984,343
491,042 shares
|
$0 | 31 Dec 2024 |
| EdgePoint Investment Group Inc. |
13F
Company
|
19%
|
$28,696,908
2,118,575 shares
|
— | 30 Jun 2026 |
| Universal- Beteiligungs- und Servicegesellschaft mbH |
13F
Individual
|
4.9%
|
$7,352,910
545,873 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
3.2%
|
$4,738,746
351,800 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 13 Sep 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 28 reporting-owner rows connected to TUCOWS INC /PA/. Open a relationship link for the CIK-to-CIK filing trail.
Rows
28
Largest Forms 3/4/5 holder
Norman Rentrop
Net 12M change
$0
Latest report
02 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Norman Rentrop | 10%+ Owner | $27,717,539 | Mixed | 30 Dec 2024 | ||
| Blacksheep Master Fund Ltd. | 10%+ Owner | $24,911,056 | Mixed | 31 Jan 2023 | ||
| Elliot Noss | Director | $12,282,169 | Mixed | 24 Dec 2025 | ||
| David John Woroch | Chief Executive Officer | $2,928,622 | Mixed | 26 Nov 2025 | ||
| Ross Rader | Chief CX Officer | $1,093,940 | Mixed | 17 Jun 2022 | ||
| Bret Fausett | Chief Legal Officer & VP | $981,791 | Mixed | 31 Dec 2025 | ||
| Brad Burnham | Director | $700,217 | Mixed | 08 Sep 2022 | ||
| Robin Chase | Director | $612,378 | Mixed | 20 Jun 2024 | ||
| Ivan Ivanov | Chief Financial Officer | $416,422 | Mixed | 31 Dec 2025 | ||
| Allen Karp | Director | $406,736 | Mixed | 20 Jun 2024 | ||
| Erez Gissin | Director | $404,395 | Mixed | 20 Jun 2024 | ||
| Jeffrey Nathan Schwartz | Director | $302,809 | Mixed | 20 Jun 2024 | ||
| Allen Gordon Taylor | Director | $267,696 | Mixed | 02 Jun 2026 | ||
| Michael Goldstein | Chief Revenue Officer - Ting | $252,273 | Mixed | 17 Jun 2022 | ||
| Davinder Singh | Cfo | $160,123 | Mixed | 31 Dec 2024 | ||
| Rawleigh Hazen Ralls IV | Director | $141,788 | Mixed | 09 Sep 2021 | ||
| Michael Alan Koenig | Chief Operating Officer | $110,183 | Mixed | 31 Dec 2024 | ||
| Jill Szchumacher | EVP Networks | $105,350 | Mixed | 17 Jun 2022 | ||
| Jessica Sybil-Lynne Johannson | Chief People Officer | $105,350 | Mixed | 17 Jun 2022 | ||
| Gigi Sohn | Director | $74,738 | Mixed | 20 Jun 2024 |
Recent insider transactions for TUCOWS INC /PA/
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Allen Gordon Taylor | TCX | Stock Option (right to buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Jeffrey Stewart Donald Tory | TCX | Stock Option (Right to Buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Carola Matz Cerf | TCX | Stock Option (Right to Buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Laurenz Malte Nienaber | TCX | Stock Option (Right to Buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Christian Stephan Uhrenbacher | TCX | Stock Option (right to buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Marlene Carl | TCX | Stock Option (Right to Buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Lee Matheson | TCX | Stock Option (Right to buy) | Award | 3,750 | 3,750 | 02 Jun 2026 | Direct | |||
| Elliot Noss | TCX | Common Stock | Gift | -4.57% | -20,250 | 423,048 | 24 Dec 2025 | Direct | ||
| David John Woroch | TCX | Stock Option (Right to Buy) | Award | 20,000 | 20,000 | 26 Nov 2025 | Direct |
* marks a reported price that did not pass the local price check.