Exhibit 99.1

The table below specifies the date, quantity, weighted-average sale price and range of price per share of Class B common stock of Berkshire Hathaway Inc. sold by Bill & Melinda Gates Foundation Trust (the “Trust”) during the period May 9 through July 8, 2013.  The Trust undertakes to provide upon request by the staff of the Securities and Exchange Commission full information regarding the number of shares sold at each separate price.  All of the transactions were effected on the New York Stock Exchange or through Electronic Communication Networks.

Date of Transaction	Number of Shares of Common Stock Sold	Weighted-Average Price Paid Per Share ($)	Range of Price Paid Per Share ($)
7/8/2013	78,100	115.3064	114.8050 - 115.6800
7/5/2013	32,934	113.8616	113.3200 - 114.3100
7/5/2013	45,166	114.4920	114.3200 - 114.7150
7/3/2013	78,100	112.4273	111.8500 - 112.7100
7/2/2013	72,900	112.4574	112.1050 - 113.1000
7/2/2013	5,200	113.2160	113.1050 - 113.3200
7/1/2013	78,100	113.2580	112.8300 - 113.7300
6/28/2013	98,400	112.2608	111.7000 - 112.6700
6/27/2013	98,500	113.2023	112.9500 - 113.6900
6/26/2013	88,792	112.9539	112.3000 - 113.2950
6/26/2013	9,708	113.3688	113.3000 - 113.4900
6/25/2013	69,524	111.6657	110.9300 - 111.9200
6/25/2013	28,976	112.1192	111.9300 - 112.2800
6/24/2013	17,150	110.2417	109.5950 - 110.5900
6/24/2013	72,179	111.0621	110.5950 - 111.5900
6/24/2013	9,171	111.7283	111.6000 - 111.9200
6/21/2013	24,881	111.9359	111.3050 - 112.3000
6/21/2013	72,719	112.5262	112.3050 - 112.8500
6/20/2013	29,640	111.4761	110.8800 - 111.8700
6/20/2013	51,956	112.4651	111.8800 - 112.8700
6/20/2013	16,004	113.3710	112.8800 - 113.8400
6/19/2013	49,297	114.5346	113.9100 - 114.9000
6/19/2013	48,303	115.1555	114.9100 - 115.6100
6/18/2013	97,600	115.1085	114.8600 - 115.5500
6/17/2013	51,966	114.4953	113.8450 - 114.8400
6/17/2013	45,634	115.2102	114.8450 - 115.5500
6/14/2013	97,600	114.2855	113.9900 - 114.9800
6/13/2013	39,720	113.0028	112.4750 - 113.4700
6/13/2013	40,303	113.9911	113.4900 - 114.4700
6/13/2013	17,577	114.8286	114.5000 - 115.0400
6/12/2013	91,820	112.9773	112.6600 - 113.6550
6/12/2013	5,780	113.8916	113.6600 - 114.1500
6/11/2013	97,600	113.8355	113.3300 - 114.2700
6/10/2013	97,600	115.1119	114.8400 - 115.6500
6/7/2013	84,231	114.4405	113.9400 - 114.9350
6/7/2013	13,369	115.2385	114.9400 - 115.4750
6/6/2013	73,400	111.9266	111.3900 - 112.3850
6/6/2013	24,200	112.6059	112.3900 - 113.0000
6/5/2013	95,100	111.5400	111.0900 - 112.0700
6/5/2013	2,500	112.7318	112.0950 - 113.0600
6/4/2013	97,600	113.4240	112.9200 - 113.8300
6/3/2013	97,000	113.5303	113.0400 - 114.0300
6/3/2013	600	114.0608	114.0500 - 114.0700
5/31/2013	97,600	114.5014	113.9300 - 114.8200
5/30/2013	97,600	114.7154	114.4250 - 114.9800
5/29/2013	46,845	112.2001	111.7500 - 112.7400
5/29/2013	50,755	113.0803	112.7500 - 113.3000
5/28/2013	97,600	112.1508	111.7900 - 112.4800
5/24/2013	97,600	110.5285	109.9800 - 110.7000
5/23/2013	27,630	110.1412	109.5800 - 110.5600
5/23/2013	67,970	111.2224	110.5950 - 111.5700
5/23/2013	2,000	111.6075	111.5800 - 111.6600
5/22/2013	31,641	111.6525	111.1200 - 112.1150
5/22/2013	52,124	112.7492	112.1200 - 113.1150
5/22/2013	13,835	113.1997	113.1200 - 113.4400
5/21/2013	97,600	112.8201	112.6050 - 113.2100
5/20/2013	97,600	113.1000	112.9050 - 113.5200
5/17/2013	96,200	112.5179	112.0200 - 113.0150
5/17/2013	1,400	113.0450	113.0200 - 113.0900
5/16/2013	97,600	111.7799	111.2600 - 112.2100
5/15/2013	97,600	112.6308	112.2400 - 112.9700
5/14/2013	97,600	112.4030	112.0400 - 112.6800
5/13/2013	97,600	111.8325	111.4250 - 112.3000
5/10/2013	97,600	111.4167	111.0600 - 111.8100
5/9/2013	97,600	110.7942	110.3600 - 111.3400