Company · Ownership research

TUCOWS INC /PA/ TCX

CIK 0000909494 · CUSIP 898697206

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 898697206 (TCX), not CUSIP 898697906 (TCX), CUSIP 898697956 (TCX), and does not merge CUSIPs.

This page lists the top 20 of 62 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	EdgePoint Investment Group Inc. CIK 1481669 · View history	$39.14M 2,118,575 shares	0.29%	0(0.00%)Unchanged	SEC filing ↗ Nov 14, 2025	▾
02	Blacksheep Fund Management Ltd CIK 1800249 · View history	$20.26M 1,091,985 shares	17.28%	0(0.00%)Unchanged	SEC filing ↗ Nov 13, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$9.72M 523,682 shares	0.00%	-6.55K(-1.20%)Reduced	SEC filing ↗ Nov 12, 2025	▾
04	Universal- Beteiligungs- und Servicegesellschaft mbH CIK 2057170 · View history	$9.48M 510,989 shares	0.02%	0(0.00%)Unchanged	SEC filing ↗ Oct 30, 2025	▾
05	VANGUARD GROUP INC CIK 102909 · View history	$8.93M 481,462 shares	0.00%	+12.39K(+2.60%)Added	SEC filing ↗ Nov 7, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$3.44M 185,333 shares	0.00%	-9.44K(-4.80%)Reduced	SEC filing ↗ Nov 12, 2025	▾
07	STATE STREET CORP CIK 93751 · View history	$3.35M 180,688 shares	0.00%	-1.28K(-0.70%)Reduced	SEC filing ↗ Nov 14, 2025	▾
08	ROYAL BANK OF CANADA CIK 1000275 · View history	$3.12M 168,311 shares	0.00%	+16.76K(+11.10%)Added	SEC filing ↗ Nov 14, 2025	▾
09	Baader Bank Aktiengesellschaft CIK 1542629 · View history	$3.03M 163,200 shares	0.25%	0(0.00%)Unchanged	SEC filing ↗ Nov 6, 2025	▾
10	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$2.72M 146,351 shares	0.00%	-2.00K(-1.30%)Reduced	SEC filing ↗ Nov 13, 2025	▾
11	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$1.35M 72,745 shares	0.00%	-4.22K(-5.50%)Reduced	SEC filing ↗ Nov 10, 2025	▾
12	NORTHERN TRUST CORP CIK 73124 · View history	$1.13M 60,774 shares	0.00%	-4.55K(-7.00%)Reduced	SEC filing ↗ Nov 14, 2025	▾
13	Blackhawk Capital Partners LLC. CIK 1582561 · View history	$957.77K 51,618 shares	0.37%	+51.62KNew	SEC filing ↗ Oct 31, 2025	▾
14	K.J. Harrison & Partners Inc CIK 1418359 · View history	$742.83K 41,291 shares	0.11%	-1.00K(-2.40%)Reduced	SEC filing ↗ Nov 12, 2025	▾
15	Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history	$681.80K 36,900 shares	0.00%	-100(-0.30%)Reduced	SEC filing ↗ Nov 13, 2025	▾
16	MORGAN STANLEY CIK 895421 · Amended · View history	$669.30K 36,071 shares	0.00%	+1.43K(+4.10%)Added	SEC filing ↗ May 27, 2026	▾
17	CITADEL ADVISORS LLC CIK 1423053 · View history	$625.12K 33,690 shares	0.00%	-16.18K(-32.40%)Reduced	SEC filing ↗ Nov 14, 2025	▾
18	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$588.47K 31,715 shares	0.00%	-101(-0.30%)Reduced	SEC filing ↗ Nov 14, 2025	▾
19	GSA CAPITAL PARTNERS LLP CIK 1362033 · View history	$495.00K 26,652 shares	0.04%	-13.82K(-34.10%)Reduced	SEC filing ↗ Nov 7, 2025	▾
20	JANE STREET GROUP, LLC CIK 1595888 · View history	$406.32K 21,898 shares	0.00%	+2.44K(+12.50%)Added	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 62 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

6,156,509

Not deduplicated across managers

Disclosed value

$114.04M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

TUCOWS INC /PA/ · Q3 2025

Explore all 62 reporting institutions.

This page includes 20 of 62 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.