Question 1

Does TCI Fund Management own CNI stock?

Accepted Answer

Yes. As of its Q2 2026 13F, TCI Fund Management holds 9,433,422 shares of CNI (Canadian National Railway), worth $1.1B.

Question 2

How many shares of CNI does TCI Fund Management own?

Accepted Answer

As of its Q2 2026 13F, TCI Fund Management holds 9,433,422 shares of CNI (Canadian National Railway).

Question 3

What is TCI Fund Management's CNI position worth?

Accepted Answer

As of its Q2 2026 13F, TCI Fund Management's CNI position is worth $1.1B.

Question 4

Is TCI Fund Management buying or selling CNI?

Accepted Answer

In Q2 2026, TCI Fund Management reduced its CNI position by 416,512 shares (-4.2%).

Question 5

When did TCI Fund Management first buy CNI?

Accepted Answer

TCI Fund Management already held CNI in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price
2026-Q2 Latest	Decreased	9.4M	-4.2%	$1.1B	2.1%	$118.60
2026-Q1	Unchanged	9.8M	0.0%	$1B	2.2%	$101.66
2025-Q4	Decreased	9.8M	-47.5%	$974.1M	1.8%	$97.17
2025-Q3	Decreased	18.8M	-18.4%	$1.8B	3.4%	$92.70
2025-Q2	Decreased	23M	-14.5%	$2.4B	4.7%	$101.60
2025-Q1	Decreased	26.9M	-9.4%	$2.6B	6.0%	$94.58
2024-Q4	Decreased	29.7M	-16.2%	$3B	7.1%	$97.91
2024-Q3	Decreased	35.4M	-10.3%	$4.2B	9.4%	$112.37