EXHIBIT 99.1

The table below specifies the date of the transaction, number of shares, weighted-average price per share and range of price per share of the common shares of Canadian National Railway Company (the “Issuer”) sold by each of Cascade Investment, L.L.C. (“Cascade”) and Bill & Melinda Gates Foundation Trust (the “Trust”) during the period from May 13, 2022, to May 25, 2022. The Issuer’s common shares are listed on the New York Stock Exchange, priced in U.S. dollars (“USD”), and on the Toronto Stock Exchange, priced in Canadian dollars (“CAD”). All transactions were effected in the market through brokers. Each of Cascade and the Trust undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the table below.

	Number of Shares Sold				Weighted Average		Range of Price per Share
Date of Transaction	Cascade		Trust		Price per Share		Low		High
May 13, 2022		332,764		63,420	CAD	143.1852	CAD	142.7849	CAD	143.7836
May 13, 2022		540,071		102,930	CAD	144.2718	CAD	143.7900	CAD	144.7843
May 13, 2022		16,158		3,080	CAD	144.9162	CAD	144.7900	CAD	145.2967
May 16, 2022		22,310		4,252	CAD	143.4414	CAD	142.6246	CAD	143.6235
May 16, 2022		397,005		75,664	CAD	144.2608	CAD	143.6246	CAD	144.6236
May 16, 2022		517,734		98,673	CAD	144.8584	CAD	144.6252	CAD	145.6073
May 16, 2022		9,987		1,903	CAD	145.6905	CAD	145.6300	CAD	145.8200
May 17, 2022		737,473		140,552	CAD	147.6876	CAD	147.1079	CAD	148.1068
May 17, 2022		198,165		37,767	CAD	148.3115	CAD	148.1091	CAD	148.6400
May 17, 2022		20,158		3,842	CAD	149.4217	CAD	149.2500	CAD	149.4500
May 18, 2022		195,862		37,328	CAD	145.0142	CAD	144.5797	CAD	145.5795
May 18, 2022		58,785		11,204	CAD	145.8287	CAD	145.5800	CAD	146.5600
May 18, 2022		217,596		41,471	CAD	147.3726	CAD	146.5800	CAD	147.5740
May 18, 2022		427,421		81,460	CAD	148.2062	CAD	147.5800	CAD	148.5600
May 18, 2022		84		16	CAD	148.6600	CAD	148.6600	CAD	148.6600
May 19, 2022		146,764		27,971	CAD	141.6440	CAD	140.8000	CAD	141.7996
May 19, 2022		586,237		111,729	CAD	142.1735	CAD	141.8000	CAD	142.7968
May 19, 2022		121,728		23,200	CAD	143.1156	CAD	142.8000	CAD	143.5900
May 20, 2022		354,727		67,606	CAD	142.7180	CAD	142.0716	CAD	143.0711
May 20, 2022		325,835		62,100	CAD	143.3433	CAD	143.0716	CAD	143.6200
May 23, 2022		100,615		19,176	USD	112.9304	USD	112.1900	USD	113.1800
May 23, 2022		150,232		28,632	USD	113.4750	USD	113.1900	USD	113.9900
May 24, 2022		305,376		58,201	CAD	141.4112	CAD	140.9800	CAD	141.9748
May 24, 2022		61,244		11,672	CAD	142.3733	CAD	141.9800	CAD	142.9468
May 24, 2022		12,347		2,353	CAD	143.2152	CAD	142.9900	CAD	143.7900
May 25, 2022		136,753		26,063	CAD	140.2799	CAD	139.6547	CAD	140.6516
May 25, 2022		466,029		88,818	CAD	141.1289	CAD	140.6600	CAD	141.6453
May 25, 2022		336		64	CAD	141.7150	CAD	141.6700	CAD	141.7500
May 25, 2022		125,395		23,898	USD	109.9465	USD	109.7300	USD	110.3000

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