6-K

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

Reportof Foreign Issuer Pursuant to Rule 13****a-16 or 15d-16

of theSecurities Exchange Act of 1934

For the month of May 2026

Commission File Number: 001-02413

Canadian National Railway Company

(Translation of registrant’s name into English)

935 de la Gauchetiere Street West

Montreal, Quebec

Canada H3B 2M9

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F	¨	Form 40-F	x

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		Canadian National Railway Company
Date:	May 1, 2026	By:	/s/ Cristina Circelli
			Name:	Cristina Circelli
			Title:	Vice-President, Corporate Secretary and General Counsel

CANADIAN NATIONAL RAILWAY COMPANY

Table of Content

Items	Description
1	Report of Voting Results May 1, 2026

VIA SEDAR

May 1, 2026

To:	Autorité des marchés financiers

Alberta Securities Commission

British Columbia Securities Commission

Manitoba Securities Commission

Financial and Consumer Services Commission (New Brunswick)

Office of the Superintendent of Securities Service Newfoundland and Labrador

Office of the Superintendent of Securities (Northwest Territories)

Nova Scotia Securities Commission

Ontario Securities Commission

Financial and Consumer Services Division (Prince Edward Island)

Financial and Consumer Affairs Authority of Saskatchewan

Office of the Yukon Superintendent of Securities

Office of the Superintendent of Securities Nunavut

RE:	Canadian NationalRailway Company****Report of Voting Results pursuant to section 11.3 of National Instrument 51-102 - Continuous Disclosure Obligations ("NI 51-102")

Following the Annual Meeting of Shareholders of Canadian National Railway Company (the “Company”) held on Friday, May 1, 2026, at 10:00 a.m. (Eastern Daylight Time) via live webcast (the “Meeting”), and in accordance with section 11.3 of NI 51-102, we hereby advise you of the following voting results obtained at the Meeting.

1.	Election of Directors

A ballot was conducted with respect to the election of directors. The 11 director nominees proposed by management were elected as directors. According to proxies received and ballots cast, each of the following 11 individuals were elected as directors of the Company until the next annual shareholder meeting or until such person’s successor is elected or appointed, with the following results:

NAME OF NOMINEE	VOTES FOR		%			VOTES<br><br> AGAINST		%
Shauneen Bruder		438,986,975		96.07	%		17,962,676		3.93	%
Jo-ann dePass Olsovsky		430,546,313		94.22	%		26,403,335		5.78	%
David Freeman		455,482,343		99.68	%		1,467,306		0.32	%
Denise Gray		439,516,285		96.18	%		17,433,244		3.82	%
Justin M. Howell		438,989,575		96.07	%		17,959,954		3.93	%
Susan C. Jones		454,848,008		99.54	%		2,101,520		0.46	%
Robert Knight		438,972,788		96.07	%		17,976,737		3.93	%
Michel Letellier		453,567,551		99.26	%		3,381,977		0.74	%
Al Monaco		452,819,045		99.10	%		4,130,419		0.90	%
Madeleine Paquin		455,415,305		99.66	%		1,534,223		0.34	%
Tracy Robinson		455,394,959		99.66	%		1,555,622		0.34	%

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2.	Appointment of Auditors

KPMG LLP was appointed as the Company’s auditors until the next annual meeting of shareholders by a majority of the shareholders on vote by ballot. The percentage of common shares voted “FOR” the appointment of the auditors was 89.69% of the common shares represented at the Meeting, as follows:

Votes FOR —420,948,358 (89.69%)

Votes WITHHELD — 48,389,841 (10.31%)

3.	Non-binding Advisory Resolution on Executive Compensation

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A ballot was conducted with respect to the non-binding advisory vote on the Company’s approach to executive compensation. The percentage of common shares voted “FOR” the Company’s approach to executive compensation was 91.67% of the common shares represented at the Meeting, as follows:

Votes FOR — 418,898,845 (91.67%)

Votes AGAINST — 38,049,816 (8.33%)

4.	Non-binding Advisory Resolution on CN’s Climate Action Plan

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A ballot was conducted with respect to the non-binding advisory vote on the Company’s Climate Action Plan. The percentage of common shares voted “FOR” the Company’s Climate Action Plan was 95.99% of the common shares represented at the Meeting, as follows:

Votes FOR — 438,622,776 (95.99%)

Votes AGAINST — 18,326,303 (4.01%)

Yours<br> truly,
/s/<br> Cristina Circelli
Vice-President,<br> Corporate Secretary and General Counsel