Investor TCI Fund Management Ltd
13D/G Filings

This page shows a list of all the recent 13D/G filings made by TCI Fund Management Ltd . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2025-04-30 13D/A CNI / Canadian National Railway Company 32,719,677 26,166,798
2024-11-04 13D/A CNI / Canadian National Railway Company 40,518,953 32,719,677
2024-02-14 13G/A CP / Canadian Pacific Kansas City Limited 55,860,385 55,514,385
2024-02-14 13G/A MCO / Moody's Corporation 11,961,611 12,049,611
2023-12-18 13G/A MCO / Moody's Corporation 9,212,287 11,961,611
2023-11-09 13D/A CNI / Canadian National Railway Company 36,699,825 40,518,953
2023-02-14 13G/A BXP / Boston Properties, Inc. 12,458,851 0
2023-02-14 13G MCO / Moody's Corporation 9,212,287
2023-02-14 13G/A CHTR / Charter Communications, Inc. 9,800,605 0
2022-02-14 13G/A CP / Canadian Pacific Kansas City Limited 11,172,077 55,860,385
2022-02-14 13G/A LBRDA / Liberty Broadband Corporation 10,410,705 9,800,605
2022-02-14 13G/A BXP / Boston Properties, Inc. 11,806,713 12,458,851
2022-01-26 13D/A CNI / Canadian National Railway Company 36,699,825 36,699,825
2021-10-18 13D/A CNI / Canadian National Railway Company 36,699,825 36,699,825
2021-09-27 13D/A CNI / Canadian National Railway Company 36,699,825 36,699,825
2021-09-17 13D/A CNI / Canadian National Railway Company 36,699,825 36,699,825
2021-09-13 13D/A CNI / Canadian National Railway Company 36,699,825 36,699,825
2021-09-07 13D/A CNI / Canadian National Railway Company 36,611,825 36,699,825
2021-08-31 13D/A CNI / Canadian National Railway Company 36,521,825 36,611,825
2021-08-30 13D CNI / Canadian National Railway Company 36,521,825
2021-08-09 13G/A BXP / Boston Properties, Inc. 8,362,038 11,806,713
2021-02-16 13G LBRDA / Liberty Broadband Corporation 10,174,272 10,410,705
2021-02-16 13G/A UNVR / Univar Solutions Inc 16,679,200 0
2021-02-16 13G/A CP / Canadian Pacific Kansas City Limited 10,978,084 11,172,077
2021-02-16 13G BXP / Boston Properties, Inc. 8,362,038
2020-02-14 13G/A LBRDA / Liberty Broadband Corporation 11,772,411 10,174,272
2020-02-14 13G/A CP / Canadian Pacific Kansas City Limited 10,565,984 10,978,084
2020-02-14 13G/A UNVR / Univar Solutions Inc 14,690,728 16,679,200
2019-09-03 13G/A CP / Canadian Pacific Kansas City Limited 7,835,316 10,565,984
2019-06-27 13G UNVR / Univar Solutions Inc 14,690,728
2019-02-14 13G CP / Canadian Pacific Kansas City Limited 7,835,316
2019-02-14 13G LBRDA / Liberty Broadband Corporation 11,772,411
2018-07-12 13D/A AABA / Altaba Inc 46,682,103 39,882,103
2018-07-09 13D/A AABA / Altaba Inc 57,057,273 46,682,103
2018-07-02 13D/A AABA / Altaba Inc 79,773,273 57,057,273
2018-03-15 13D AABA / Altaba Inc 84,709,952 79,773,273
2018-01-22 13G/A AABA / Altaba Inc 86,224,273 84,709,952
2017-04-10 13G/A AABA / Altaba Inc 86,224,273 86,224,273
2017-02-14 13G AABA / Altaba Inc 86,224,273
2016-02-12 13G/A TWC / Spectrum Management Holding Company LLC 16,233,532