Company · Ownership research

THOMSON REUTERS CORP /CAN/ TRI

CIK 0001075124 · CUSIP 884903881

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 884903881 (TRI), not CUSIP 884903808 (TRI), CUSIP 884903901 (TRI), CUSIP 884903951 (TRI), CUSIP 884903907 (TRI), CUSIP 884903908 (TRI), CUSIP 884903958 (TRI), CUSIP 884903931 (TRI), and does not merge CUSIPs.

Some filings reported values in thousands; those figures were scaled ×1000 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	MARSHALL WACE, LLP CIK 1318757 · View history	$58.42M 649,216 shares	0.06%	CUSIP change	SEC filing ↗ May 15, 2026	▾
02	Gulf International Bank (UK) Ltd CIK 1598697 · View history	$1.09M 12,039 shares	0.02%	CUSIP change	SEC filing ↗ May 11, 2026	▾
03	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO CIK 1007280 · View history	$861.65K 9,577 shares	0.00%	CUSIP change	SEC filing ↗ May 14, 2026	▾
04	EAGLE HARBOR ASSET MANAGEMENT INC /ADV CIK 1088388 · View history	$603.77K 6,710 shares	0.11%	+2.53K(+60.6%)Added	SEC filing ↗ Aug 11, 2026	▾
05	Delaney Capital Management Ltd. CIK 2140766 · View history	$220.69K 2,450 shares	0.04%	0(0.0%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
06	Parallel Advisors, LLC CIK 1690010 · Amended · View history	$192.21K 2,136 shares	0.00%	CUSIP change	SEC filing ↗ Jun 3, 2026	▾
07	WELLINGTON-ALTUS USA INC. CIK 1760398 · View history	$23.25K 260 shares	0.01%	CUSIP change	SEC filing ↗ Sep 17, 2026	▾
08	RAFFA WEALTH MANAGEMENT, LLC CIK 1631073 · View history	$810.00 9 shares	0.00%	0(0.0%)Unchanged	SEC filing ↗ Jul 27, 2026	▾
09	Bullock Wealth Management Group CIK 2067581 · View history	$352.00 4 shares	0.00%	0(0.0%)Unchanged	SEC filing ↗ Sep 10, 2026	▾

Showing 9 / 9 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

682,401

Not deduplicated across managers

Disclosed value

$61.41M

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.

THOMSON REUTERS CORP /CAN/ · Q1 2026

Take these holdings further.

This page includes 9 of 9 reporting institutions. Sign 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.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 9 of 9 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

get_institutional_security_holders
{"cusip":"884903881","quarter":"2026Q1","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP documentation: /documents
llms.txt: /llms.txt

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.