The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 03-31-2021
Check here if Amendment   Amendment Number:
This Amendment (Check only one.):   is a restatement.
  adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: TCI FUND MANAGEMENT LTD
Address: 7 CLIFFORD STREET
LONDON , X0W1S2FT
Form 13F File Number: 028-16990

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: Angus Milne
Title: Head of Compliance
Phone: 44-20-7440-2330
Signature, Place, and Date of Signing:
/s/ Angus Milne London , X0 05-17-2021
[Signature] [City, State] [Date]
Report Type (Check only one.):
X 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
  13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
  13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 13
Form 13F Information Table Value Total: 34,443,673
(thousands)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name


SEC FORM 13F-HR

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC CAP STK CL C 02079K107 6,107,231 2,952,307 SH SOLE 2,952,307 0 0
ALPHABET INC CAP STK CL A 02079K305 1,274,681 618,021 SH SOLE 618,021 0 0
BOSTON PROPERTIES INC COM 101121101 886,393 8,753,638 SH SOLE 8,753,638 0 0
CANADIAN NATL RY CO COM 136375102 2,410,839 20,773,418 SH SOLE 20,773,418 0 0
CANADIAN PAC RY LTD COM 13645T100 4,260,709 11,172,077 SH SOLE 11,172,077 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108 6,326,233 10,252,881 SH SOLE 10,252,881 0 0
KLA CORP COM NEW 482480100 10,110 30,600 SH SOLE 30,600 0 0
LAM RESEARCH CORP COM 512807108 10,298 17,300 SH SOLE 17,300 0 0
MICROSOFT CORP COM 594918104 4,829,372 20,483,405 SH SOLE 20,483,405 0 0
MOODYS CORP COM 615369105 1,959,715 6,562,790 SH SOLE 6,562,790 0 0
S&P GLOBAL INC COM 78409V104 2,065,510 5,853,460 SH SOLE 5,853,460 0 0
UNION PAC CORP COM 907818108 1,326,105 6,016,539 SH SOLE 6,016,539 0 0
VISA INC COM CL A 92826C839 2,976,477 14,057,890 SH SOLE 14,057,890 0 0