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Institutional Ownership · SEC Form 13F

Who owns Tucows Inc. (TCX)


Which tracked institutional funds hold TCX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TCX company fundamentals →

Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-21). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

68
Institutional holders
6M
Shares held (tracked funds)
56.3%
Of shares outstanding

How the tape is positioned

The tracked-fund tape on TCX is one-sided between 2025-Q4 and 2026-Q1: 5 added or opened and 15 trimmed or exited — on balance reducing.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

TCX’s largest tracked holder by dollar value, EdgePoint Investment Group Inc., sizes it at 0.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.

Book-share is each fund’s reported value in TCX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2025-Q4 and 2026-Q1, across 68 tracked filers holding TCX, 37 increased or opened the position and 37 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in TCX between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 3

  • VANGUARD CAPITAL MANAGEMENT LLC$6M
  • VANGUARD FIDUCIARY TRUST CO$950K
  • VANGUARD PORTFOLIO MANAGEMENT LLC$673K

Full exits 2

  • VANGUARD GROUP INC$10M
  • JANE STREET GROUP, LLC$822K

Largest adds

  • EverSource Wealth Advisors, LLC$11M
  • Russell Investments Group, Ltd.$2M

Largest trims

  • EdgePoint Investment Group Inc.$11M
  • Blacksheep Fund Management Ltd$6M
  • BlackRock, Inc.$3M
  • Universal- Beteiligungs- und Servicegesellschaft mbH$2M
  • STATE STREET CORP$879K
  • Baader Bank Aktiengesellschaft$858K

Institutional holders

One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).

FundSharesReported value% of valueQuarter
EdgePoint Investment Group Inc.2,118,575$36M28.4%2026-Q1
Blacksheep Fund Management Ltd1,091,985$19M14.6%2026-Q1
EverSource Wealth Advisors, LLC added186,260$11M8.7%2026-Q1
Universal- Beteiligungs- und Servicegesellschaft mbH added533,873$9M7.1%2026-Q1
BlackRock, Inc. trimmed516,163$9M6.9%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new361,244$6M4.8%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added198,550$3M2.7%2026-Q1
STATE STREET CORP added184,484$3M2.5%2026-Q1
Baader Bank Aktiengesellschaft added163,270$3M2.2%2026-Q1
RENAISSANCE TECHNOLOGIES LLC trimmed135,851$2M1.8%2026-Q1
Russell Investments Group, Ltd. added112,390$2M1.5%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed70,660$1M0.9%2026-Q1
NORTHERN TRUST CORP added64,227$1M0.9%2026-Q1
Blackhawk Capital Partners, LLC added62,078$1M0.8%2026-Q1
VANGUARD FIDUCIARY TRUST CO new55,384$950K0.7%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new39,208$673K0.5%2026-Q1
D. E. Shaw & Co., Inc. added36,908$633K0.5%2026-Q1
K.J. Harrison & Partners Inc trimmed34,671$595K0.5%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed32,431$557K0.4%2026-Q1
GOLDMAN SACHS GROUP INC added28,405$487K0.4%2026-Q1
MORGAN STANLEY trimmed23,605$405K0.3%2026-Q1
CITADEL ADVISORS LLC trimmed23,090$396K0.3%2026-Q1
GSA CAPITAL PARTNERS LLP trimmed21,126$363K0.3%2026-Q1
Connor, Clark & Lunn Investment Management Ltd. trimmed20,000$344K0.3%2026-Q1
Bank of New York Mellon Corp added19,927$342K0.3%2026-Q1
Quantinno Capital Management LP added19,867$341K0.3%2026-Q1
Nuveen, LLC added16,939$291K0.2%2026-Q1
ALLIANCEBERNSTEIN L.P.12,190$273K0.2%2026-Q1
AQR CAPITAL MANAGEMENT LLC added13,460$231K0.2%2026-Q1
RHUMBLINE ADVISERS trimmed8,082$139K0.1%2026-Q1
ROYAL BANK OF CANADA added6,427$110K0.1%2026-Q1
DEUTSCHE BANK AG\ added6,226$107K0.1%2026-Q1
TD Waterhouse Canada Inc.3,600$62K0.0%2026-Q1
Vanguard Global Advisers, LLC new3,422$59K0.0%2026-Q1
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added3,214$55K0.0%2026-Q1
WELLS FARGO & COMPANY/MN trimmed3,154$54K0.0%2026-Q1
JPMORGAN CHASE & CO trimmed2,990$51K0.0%2026-Q1
BARCLAYS PLC trimmed2,341$40K0.0%2026-Q1
FMR LLC added1,952$34K0.0%2026-Q1
Tower Research Capital LLC (TRC) added1,690$29K0.0%2026-Q1
Police & Firemen's Retirement System of New Jersey1,602$27K0.0%2026-Q1
UBS Group AG trimmed1,560$27K0.0%2026-Q1
BNP PARIBAS FINANCIAL MARKETS trimmed1,535$26K0.0%2026-Q1
CWM, LLC added1,198$21K0.0%2026-Q1
NEW YORK STATE COMMON RETIREMENT FUND1,045$18K0.0%2026-Q1
Ameritas Investment Partners, Inc.790$14K0.0%2026-Q1
NATIONAL BANK OF CANADA /FI/ added572$12K0.0%2026-Q1
Legal & General Group Plc trimmed647$11K0.0%2026-Q1
BARD ASSOCIATES INC trimmed550$9K0.0%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added404$7K0.0%2026-Q1
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed364$6K0.0%2026-Q1
CITIGROUP INC added319$5K0.0%2026-Q1
OSAIC HOLDINGS, INC. added200$3K0.0%2026-Q1
Sterling Capital Management LLC trimmed196$3K0.0%2026-Q1
Essential Partners LLC added130$2K0.0%2026-Q1
GAMMA Investing LLC trimmed86$1K0.0%2026-Q1
NISA INVESTMENT ADVISORS, LLC trimmed40$6860.0%2026-Q1
Allworth Financial LP added27$4640.0%2026-Q1
True Wealth Design, LLC added14$2410.0%2026-Q1
Federation des caisses Desjardins du Quebec trimmed10$1670.0%2026-Q1
Root Financial Partners, LLC new9$1540.0%2026-Q1
PNC FINANCIAL SERVICES GROUP, INC. added7$1200.0%2026-Q1
Farther Finance Advisors, LLC trimmed5$880.0%2026-Q1
IFP Advisors, Inc trimmed5$860.0%2026-Q1
ROTHSCHILD INVESTMENT LLC new4$690.0%2026-Q1
MAI Capital Management new3$520.0%2026-Q1
Arax Advisory Partners trimmed1$170.0%2026-Q1
Optiver Holding B.V. trimmed1$170.0%2026-Q1
VANGUARD GROUP INC trimmed464,026$10M8.1%2025-Q4 stale
JANE STREET GROUP, LLC added36,649$822K0.6%2025-Q4 stale
TWO SIGMA INVESTMENTS, LP trimmed12,714$285K0.2%2025-Q4 stale
Invesco Ltd. trimmed13,516$266K0.2%2025-Q2 stale
STATE OF WISCONSIN INVESTMENT BOARD trimmed10,900$244K0.2%2025-Q4 stale
Squarepoint Ops LLC added10,868$244K0.2%2025-Q4 stale
BANK OF AMERICA CORP /DE/ added5,983$134K0.1%2025-Q4 stale
Walleye Trading LLC added5,349$120K0.1%2025-Q4 stale
GROUP ONE TRADING LLC trimmed4,558$90K0.1%2025-Q2 stale
MetLife Investment Management, LLC trimmed3,875$87K0.1%2025-Q4 stale
Corebridge Financial, Inc. trimmed3,904$66K0.1%2025-Q1 stale
Rockefeller Capital Management L.P. new1,002$22K0.0%2025-Q4 stale
SIMPLEX TRADING, LLC trimmed1,087$18K0.0%2025-Q1 stale
CIBC Private Wealth Group LLC600$13K0.0%2025-Q4 stale
Versant Capital Management, Inc added234$5K0.0%2025-Q4 stale
AMALGAMATED BANK trimmed212$5K0.0%2025-Q4 stale
Mowery & Schoenfeld Wealth Management, LLC59$1K0.0%2025-Q2 stale
Marquette Asset Management, LLC new27$6060.0%2025-Q4 stale
CONCOURSE FINANCIAL GROUP SECURITIES, INC.00.0%2025-Q2 stale
Cloud Capital Management, LLC new10.0%2025-Q3 stale

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership