13F filings
TCI Fund Management
Where the disclosed book sits
by disclosed valueLargest holdings
all 11 positions| Holding | Type | Value | Shares | Share of book |
|---|---|---|---|---|
| GEGE Aerospace | Shares | $17.7B | 47,428,233 | 33.6% |
| VVISA Inc | Shares | $10.5B | 30,494,133 | 19.8% |
| MCOMoodys Corp | Shares | $6.5B | 14,334,027 | 12.3% |
| SPGIS&P Global Inc | Shares | $5.7B | 14,081,957 | 10.9% |
| CPCanadian Pacific Kansas City | Shares | $3.9B | 45,325,726 | 7.4% |
| GOOGAlphabet Inc | Shares | $3.5B | 9,938,819 | 6.7% |
| FERFerrovial NV | Shares | $1.4B | 20,940,441 | 2.7% |
| CNICanadian Natl Ry Co | Shares | $1.1B | 9,433,422 | 2.1% |
| GOOGLAlphabet Inc | Shares | $878.1M | 2,457,000 | 1.7% |
| MLMMartin Marietta Matls Inc | Shares | $758.4M | 1,315,109 | 1.4% |
| VMCVulcan Matls Co | Shares | $721.9M | 2,447,004 | 1.4% |
Share of book is the position's value against the whole disclosed 13F value, so the rows shown here do not sum to 100% unless every position is listed.
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What changed last quarter
6 largest moves| Holding | Move | Share change | Value change | Value after |
|---|---|---|---|---|
| MSFTMICROSOFT CORP | Exited | n/a | -$1.0B | $0 |
| MLMMARTIN MARIETTA MATLS INC | New | n/a | $758.4M | $758.4M |
| VMCVULCAN MATLS CO | New | n/a | $721.9M | $721.9M |
| GOOGALPHABET INC | Added | +12.3% | $383.3M | $3.5B |
| CPCANADIAN PACIFIC KANSAS CITY | Trimmed | -2.6% | -$103.6M | $3.9B |
| CNICANADIAN NATL RY CO | Trimmed | -4.2% | -$49.7M | $1.1B |
A change is this filing measured against the one before it. A 13F does not disclose trades, so the price paid and the day it happened are not in the record.
Questions
What does TCI Fund Management hold?
TCI Fund Management disclosed 11 positions worth $52.8B in the Q2 2026 13F filing. The largest is GE at 33.6% of the disclosed book. A 13F lists long US equity positions only.
What did TCI Fund Management buy and sell last quarter?
Comparing the Q2 2026 filing with the quarter before, the largest moves were Exited MSFT, New MLM, New VMC, Added GOOG. Changes are measured against the previous filing, not against trades, because a 13F does not disclose trades.
How current is this?
This is the Q2 2026 filing, covering positions held on Jun 30, 2026. A 13F is due 45 days after the quarter ends, so the most recent filing is always at least six weeks behind the market, and the manager may have changed the book since.
How to read a 13F
WHAT THE FILING COVERS
Positions are as disclosed to the SEC on Form 13F and are not investment advice. How this data is sourced, and what it cannot tell you, is on the methodology page.
Data as of Sep 10, 2026.