WELLINGTON MANAGEMENT GROUP LLP

Position in CNI — Canadian National Railway Co

CIK 902219 Boston, MA

Back to CNI Full portfolio

Position in CNI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,017,974,770

-$166,263,051 QoQ

Shares Held

8,537,192

-25.9% QoQ

Ownership

1.41%

of shares outstanding

% of Portfolio

0.18%

of 13F equity value

Holder Rank

#11

of 843 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 0% Shared 92% None 8%

Common Shares in CNI Over Time

Shares Held

Position Value (USD)

Position in Railroads

Industrials · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $1,558,895,538 across 6 Railroads names. CNI ranks #1 (65.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CNI	Canadian National Railway Co This page	8,537,192	$1,017,974,770
2	WAB	Westinghouse Air Brake Technologies Corp	1,670,476	$450,360,327
3	UNP	Union Pacific Corp	273,793	$74,471,696
4	CP	Canadian Pacific Kansas City Ltd/Cn	93,214	$8,076,992
5	NSC	Norfolk Southern Corp	15,935	$5,012,991
6	CSX	Csx Corp	63,092	$2,998,762

All Filings in CNI

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26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,017,974,770	8,537,192	-25.9%	Shares	Defined	2026-08-14
2026-03-31	$1,184,237,821	11,523,186	+23.7%	Shares	Defined	2026-05-15
2025-12-31	$920,867,124	9,315,803	-20.2%	Shares	Defined	2026-02-17
2025-09-30	$1,101,031,522	11,675,838	-48.1%	Shares	Defined	2025-11-14
2025-06-30	$2,341,807,746	22,508,725	+39.5%	Shares	Defined	2025-08-14
2025-03-31	$1,572,618,164	16,136,037	-7.7%	Shares	Defined	2025-05-13
2024-12-31	$1,774,079,913	17,476,898	-5.8%	Shares	Defined	2025-02-12
2024-09-30	$2,174,560,440	18,562,189	+4.4%	Shares	Defined	2024-11-14
2024-06-30	$2,099,379,069	17,771,769	-11.1%	Shares	Defined	2024-08-14
2024-03-31	$2,632,964,030	19,990,616	-8.6%	Shares	Defined	2024-05-15
2023-12-31	$2,747,369,801	21,868,740	+9.6%	Shares	Defined	2024-02-12
2023-09-30	$2,162,353,677	19,960,802	-2.1%	Shares	Defined	2023-11-14
2023-06-30	$2,467,329,595	20,379,364	+0.0%	Shares	Defined	2023-08-14
2023-03-31	$2,403,646,061	20,375,062	+0.9%	Shares	Defined	2023-05-12
2022-12-31	$2,399,783,241	20,186,602	-2.5%	Shares	Defined	2023-02-13
2022-09-30	$2,236,663,822	20,711,768	-5.1%	Shares	Defined	2022-11-14
2022-06-30	$2,455,917,858	21,836,204	+4.5%	Shares	Defined	2022-08-15
2022-03-31	$2,802,025,507	20,888,814	+41.4%	Shares	Defined	2022-05-16
2021-12-31	$1,814,414,535	14,768,147	-12.3%	Shares	Defined	2022-02-11
2021-09-30	$1,947,665,811	16,841,036	-3.1%	Shares	Defined	2021-11-15
2021-06-30	$1,833,788,390	17,378,586	-23.6%	Shares	Defined	2021-08-16
2021-03-31	$2,636,669,831	22,733,832	-0.0%	Shares	Defined	2021-05-17
2020-12-31	$2,498,026,234	22,740,339	-0.5%	Shares	Defined	2021-02-12
2020-09-30	$2,432,180,790	22,845,959	+1.7%	Shares	Defined	2020-11-16
2020-06-30	$1,989,737,978	22,465,146	-4.6%	Shares	Defined	2020-08-14
2020-03-31	$1,827,500,946	23,541,169	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.