Exhibit 99.1

The table below specifies the date, quantity, weighted-average price, and, where applicable, the range of price per share of Class B common stock of Berkshire Hathaway Inc. (the “Issuer”) sold by Bill & Melinda Gates Foundation Trust during the past sixty days.  On January 21, 2010, the Issuer’s Class B common stock split 50-for-1, as reflected in the chart below.  All of the transactions were affected on the New York Stock Exchange or through Electronic Communication Networks.

Trade Date	Quantity Sold	Weighted-Average Price Per Share Sold ($)	Range of Price Paid ($)
3/1/2010	28,000	79.7256	79.38 - 80.30
3/1/2010	16,900	80.9615	80.44 - 81.40
3/1/2010	15,100	81.6832	81.44 - 81.94
2/26/2010	41,400	79.6166	79.25 - 80.13
2/25/2010	36,384	79.1721	78.96 - 79.40
2/24/2010	40,000	79.6386	79.25 - 79.86
2/23/2010	35,000	79.7517	79.02 - 80.00
2/22/2010	32,000	79.7315	79.06 - 80.05
2/19/2010	9,000	77.7033	77.55 - 77.90
2/19/2010	27,500	76.9355	76.54 - 77.53
2/19/2010	29,500	78.8865	78.55 - 79.32
2/18/2010	46,000	76.3184	76.08 - 76.70
2/17/2010	27,500	76.0629	75.85 - 76.35
2/16/2010	20,000	75.9490	75.79 - 76.14
2/12/2010	11,500	77.5308	77.30 - 77.79
2/12/2010	81,500	76.9442	76.30 - 77.28
2/11/2010	28,500	76.5139	76.30 - 76.79
2/11/2010	30,000	75.7708	75.28 - 76.25
2/11/2010	48,500	74.5939	74.24 - 75.18
2/10/2010	21,802	74.4753	74.40 - 74.55
2/9/2010	40,100	74.4063	74.19 - 74.68
2/8/2010	19,000	74.2251	74.03 - 74.46
2/8/2010	31,000	73.7198	73.03 - 74.02
2/5/2010	7,500	73.1929	72.90 - 73.54
2/5/2010	42,500	72.3260	71.77 - 72.74
2/4/2010	10,020	73.3678	73.25 - 73.53
2/4/2010	22,800	72.4381	72.23 -72.75
2/3/2010	23,000	74.5142	74.22 - 75.11
2/2/2010	35,494	75.6346	75.09 - 76.05
2/1/2010	2,700	76.5426	76.30 - 76.70
2/1/2010	2,800	77.8124	77.70 - 78.00
2/1/2010	6,500	75.0385	74.70 - 75.34
1/29/2010	1,000	77.7000
1/29/2010	8,000	75.8663	75.50 - 76.45
1/29/2010	16,000	75.0738	74.40 - 75.39
1/29/2010	19,000	76.8295	76.51 - 77.15
1/28/2010	7,000	73.9357	73.90 - 73.97
1/28/2010	27,000	73.1922	72.88 - 73.85
1/28/2010	35,000	72.4018	71.85 - 72.80
1/27/2010	1,000	73.5500
1/27/2010	9,100	72.8780	72.54 - 73.50
1/27/2010	14,900	71.3706	71.25 - 71.52
1/27/2010	21,000	70.7124	70.24 - 71.21
1/26/2010	14,200	69.4054	69.19 - 69.68

Trade Date	Quantity Sold	Weighted-Average Price Per Share Sold ($)	Range of Price Paid ($)
1/26/2010	48,200	68.4919	68.00 - 68.80
1/25/2010	6,000	71.5517	71.33 - 71.71
1/25/2010	14,000	68.9207	68.45 - 69.43
1/22/2010	1,000	72.0400
1/22/2010	3,000	73.1600	73.10 - 73.27
1/22/2010	8,000	71.2075	70.66 - 71.47
1/22/2010	8,000	70.1135	69.66 - 70.59
1/21/2010	8,000	72.9738	72.86 - 73.09
1/21/2010	14,600	71.2643	70.82 - 71.66
1/21/2010	23,000	72.4261	71.86 - 72.84
1/20/2010	100	3,382.00
1/20/2010	100	3,385.00
1/20/2010	100	3,388.00
1/20/2010	100	3,390.50
1/20/2010	100	3,393.06	3,393.00 - 3,393.30
1/20/2010	100	3,399.001	3,399.00 - 3,399.01
1/20/2010	200	3,401.005	3,401.00 - 3,401.01
1/20/2010	100	3,415.92
1/20/2010	100	3,429.001	3,429.00 - 3,429.01
1/20/2010	100	3,432.17
1/20/2010	100	3,437.90
1/20/2010	100	3,446.012	3,445.99 - 3,446.10
1/20/2010	100	3,450.00
1/20/2010	100	3,460.00
1/20/2010	100	3,465.00
1/20/2010	100	3,467.00
1/20/2010	200	3,469.00
1/20/2010	100	3,470.00
1/20/2010	100	3,472.00
1/20/2010	100	3,479.44
1/19/2010	200	3,285.495	3,285.00 - 3,285.99
1/19/2010	200	3,287.7665	3,287.58 - 3,288.00
1/19/2010	60	3,291.8833	3,291.50 - 3,292.30
1/19/2010	90	3,292.833	3,292.50 - 3,293.00
1/19/2010	60	3,293.95	3,293.50 - 3,294.40
1/19/2010	130	3,297.9931	3,297.97 - 3,298.00
1/19/2010	40	3,299.775	3,299.10 - 3,300.00
1/19/2010	50	3,300.196	3,300.16 - 3,300.25
1/19/2010	60	3,303.00
1/19/2010	30	3,306.99
1/19/2010	30	3,308.5867	3,308.56 - 3,308.60
1/19/2010	30	3,309.78
1/19/2010	60	3317.90	3,317.80 - 3,318.00
1/19/2010	30	3,322.4167	3,322.00 - 3,322.50

Trade Date	Quantity Sold	Weighted-Average Price Per Share Sold ($)	Range of Price Paid ($)
1/19/2010	30	3,325.15
1/19/2010	30	3,330.80
1/19/2010	145	3,333.1014	3,332.70 - 3,333.60
1/19/2010	125	3,334.0738	3,333.99 - 3,334.50
1/15/2010	100	3,250.00
1/15/2010	100	3,305.00
1/14/2010	200	3,301.15	3,300.80 - 3,301.50
1/14/2010	200	3,303.625	3,303.25 - 3,304.00
1/14/2010	200	3,304.45	3,304.40 - 3,304.50
1/13/2010	100	3,312.04	3,312.00 - 3,312.20
1/13/2010	300	3,314.1333	3,313.90 - 3,314.50
1/13/2010	200	3,315.85	3,315.60 - 3,316.10
1/12/2010	60	3,316.20
1/12/2010	400	3,320.125	3,320.00 - 3,320.50
1/12/2010	300	3,322.24	3,321.90 - 3,322.80
1/12/2010	100	3,323.701	3,323.70 - 3,323.71
1/12/2010	100	3,325.10
1/12/2010	100	3,327.00
1/11/2010	200	3,324.99
1/11/2010	100	3,326.00
1/11/2010	40	3,327.155	3,327.00 - 3,327.40
1/11/2010	40	3,329.25	3,329.00 - 3,329.50
1/11/2010	40	3,330.00
1/11/2010	20	3,333.26	3,333.21 - 3,333.31
1/11/2010	40	3,335.0275	3,335.00 - 3,335.10
1/11/2010	20	3,337.00
1/11/2010	40	3,338.00
1/11/2010	20	3,339.00
1/8/2010	100	3,318.30
1/8/2010	300	3,320.3367	3,320.00 - 3,320.60
1/8/2010	340	3,321.7385	3,321.50 - 3,322.00
1/8/2010	100	3,323.00
1/8/2010	100	3,324.00
1/7/2010	600	3,312.1685	3,312.00 - 3,312.80
1/7/2010	360	3,313.9822	3,313.57 - 3,314.10
1/7/2010	100	3,315.00
1/7/2010	100	3,316.20
1/6/2010	200	3,313.85	3,313.80 - 3,313.90
1/6/2010	200	3,316.55	3,316.50 - 3,316.60
1/5/2010	100	3,310.00
1/5/2010	200	3,314.45	3,314.40 - 3,314.50
1/5/2010	210	3,317.3143	3,317.00 - 3,317.60
1/5/2010	200	3,318.00
1/5/2010	200	3,321.6205	3,321.20 - 3,322.00
1/5/2010	100	3,323.80

Trade Date	Quantity Sold	Weighted-Average Price Per Share Sold ($)	Range of Price Paid ($)
1/5/2010	100	3,325.00
1/5/2010	100	3,326.1990	3,326.10 - 3,326.21
1/4/2010	100	3,298.00
1/4/2010	100	3,300.00
1/4/2010	100	3,303.00
1/4/2010	100	3,304.00
1/4/2010	100	3,306.00
1/4/2010	200	3,313.008	3,313.00 - 3,313.16
1/4/2010	100	3,314.00
1/4/2010	100	3,317.50
1/4/2010	100	3,322.60