SC 13D/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 9)*

Berkshire Hathaway Inc.

(Name of Issuer)

Class B common stock, $0.0033 Par Value

(Title of Class of Securities)

084670702

(CUSIP Number)

Laurie Smiley, Esq.

Arian Colachis, Esq.

2365 Carillon Point

Kirkland, WA  98033

(425) 889-7900

(Name, Address and Telephone Number of Persons Authorized to
Receive Notices and Communications)

November 11, 2010

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. o

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No.   084670702
	1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only) Cascade Investment, L.L.C.
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)			o
		(b)			ý
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) WC
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)     o
	6.	Citizenship or Place of Organization State of Washington
Number of Shares Beneficially Owned by Each Reporting Person With			7.	Sole Voting Power 6,075,000(1)
			8.	Shared Voting Power -0-
			9.	Sole Dispositive Power 6,075,000(1)
			10.	Shared Dispositive Power -0-
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person 6,075,000(1)
	12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions)   o
	13.	Percent of Class Represented by Amount in Row (11) .6%
	14.	Type of Reporting Person (See Instructions) OO

(1)Cascade Investment, L.L.C. (“Cascade”) holds 4,050 shares of Berkshire Hathaway Inc. (the “Issuer”) Class A common stock (“Class A Shares”).  All Class A Shares held by Cascade may be deemed to be beneficially owned by William H. Gates III as the sole member of Cascade.  Each Class A Share is convertible, at the option of the holder, into fifteen hundred shares of the Issuer’s Class B common stock (“Class B Shares”).  The number of Class B Shares shown above assumes the conversion of the 4,050 Class A Shares beneficially owned by Cascade into 6,075,000 Class B Shares.

CUSIP No.   084670702
	1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only) William H. Gates III
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)			o
		(b)			ý
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) WC
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)     o
	6.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With			7.	Sole Voting Power 6,525,000(1)
			8.	Shared Voting Power 90,643,501(2)
			9.	Sole Dispositive Power 6,525,000(1)
			10.	Shared Dispositive Power 90,643,501(2)
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person 97,168,501(1) (2)
	12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions)   o
	13.	Percent of Class Represented by Amount in Row (11) 9.3%
	14.	Type of Reporting Person (See Instructions) IN

(1)William H. Gates III beneficially owns 300 shares of Berkshire Hathaway Inc. (the “Issuer”) Class A common stock (“Class A Shares”) directly and an additional 4,050 Class A Shares through Cascade Investment, L.L.C. (“Cascade”), a limited liability company solely owned by Mr. Gates.  Each Class A Share is convertible, at the option of the holder, into fifteen hundred shares of the Issuer’s Class B common stock (“Class B Shares”).  The number of Class B Shares shown above assumes the conversion of the 300 Class A Shares held directly by Mr. Gates into 450,000 Class B Shares and the conversion of the 4,050 Class A Shares held by Cascade into 6,075,000 Class B Shares.

(2)Bill & Melinda Gates Foundation Trust (the “Trust”) beneficially owns 90,643,501 shares of the Issuer’s Class B Shares.  For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all Class B Shares beneficially owned by the Trust may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates, as Co-Trustees of the Trust.

CUSIP No.   084670702
	1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only) Bill & Melinda Gates Foundation Trust
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)			o
		(b)			ý
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) OO
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)     o
	6.	Citizenship or Place of Organization State of Washington
Number of Shares Beneficially Owned by Each Reporting Person With			7.	Sole Voting Power -0-
			8.	Shared Voting Power 90,643,501(1)
			9.	Sole Dispositive Power -0-
			10.	Shared Dispositive Power 90,643,501(1)
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person 90,643,501(1)
	12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions)   o
	13.	Percent of Class Represented by Amount in Row (11) 8.7%
	14.	Type of Reporting Person (See Instructions) OO

(1)For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all Class B common stock beneficially owned by Bill & Melinda Gates Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates, as Co-Trustees of the Trust.

CUSIP No.   084670702
	1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only) Melinda French Gates
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)			o
		(b)			ý
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) OO
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)     o
	6.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With			7.	Sole Voting Power -0-
			8.	Shared Voting Power 90,643,501(1)
			9.	Sole Dispositive Power -0-
			10.	Shared Dispositive Power 90,643,501(1)
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person 90,643,501(1)
	12.	Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions)   o
	13.	Percent of Class Represented by Amount in Row (11) 8.7%
	14.	Type of Reporting Person (See Instructions) IN

(1)Bill & Melinda Gates Foundation Trust (the “Trust”) beneficially owns 90,643,501 shares of Berkshire Hathaway Inc. Class B common stock (“Class B Shares”).  For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all Class B Shares beneficially owned by the Trust may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates, as Co-Trustees of the Trust.

EXPLANATORY STATEMENT

This Amendment No. 9 to Schedule 13D (“Amendment No. 9”) relates to the Class B common stock, $0.0033 Par Value (“Class B Shares”) of Berkshire Hathaway Inc. (the “Issuer”).  Amendment No. 9 is being filed jointly by Cascade Investment, L.L.C. (“Cascade”), Bill & Melinda Gates Foundation Trust (the “Trust”), William H. Gates III and Melinda French Gates (collectively, the “Reporting Persons”) to amend and supplement the Items set forth below of the Reporting Persons’ Schedule 13D previously filed with the Securities and Exchange Commission on August 24, 2006, as amended on July 17, 2007, March 20, 2008, July 3, 2008, March 6, 2009, July 2, 2009, March 2, 2010, March 19, 2010 and July 2, 2010.  Neither the present filing nor anything contained herein shall be construed as an admission that the Reporting Persons constitute a “group” for any purpose and the Reporting Persons expressly disclaim membership in a group.

Item 5.     Interest in Securities of the Issuer

(a)  See items 11 and 13 of the cover pages to this Schedule 13D for the aggregate number and percentage of Class B Shares beneficially owned by each of the Reporting Persons.

(b)  See items 7 through 10 of the cover pages to this Schedule 13D for the number of Class B Shares beneficially owned by each of the Reporting Persons as to which there is sole power to vote or to direct the vote, shared power to vote or to direct the vote, and sole or shared power to dispose or to direct the disposition.

(c)  During the past sixty days, the Trust sold 1,769,057 Class B Shares, as set forth in Exhibit 99.1 hereto, pursuant to the Trust’s Rule 10b5-1(c)(1) sales plan. The sales were made to facilitate compliance with federal excise tax rules limiting excess business holdings by private foundations.

(d)  None.

(e)  Not applicable.

Item 7.     Material to be Filed as Exhibits

Exhibit 99.1     Transactions during the past sixty days

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date:   November 12, 2010	CASCADE INVESTMENT, L.L.C.(1)
	By:	*
		Name:		Alan Heuberger (2)
		Title:		Attorney-in-fact for Michael Larson,   Business Manager
	BILL & MELINDA GATES FOUNDATION TRUST(1)
	By:	*
		Name:		Alan Heuberger (3)
		Title:		Attorney-in-fact for each of the Co-   Trustees, William H. Gates III and   Melinda French Gates
	WILLIAM H. GATES III(1)
	By:	*
		Name:		Alan Heuberger(3)(4)
		Title:		Attorney-in-fact
	MELINDA FRENCH GATES(1)
	By:	*
		Name:		Alan Heuberger (3)
		Title:		Attorney-in-fact
	*By:		/s/Alan Heuberger
			Alan Heuberger

(1)This Amendment No. 9 is being filed jointly by the Reporting Persons pursuant to the Joint Filing Agreement dated August 24, 2006 and included with the signature page to the Reporting Persons’ Schedule 13D with respect to the Issuer filed on August 24, 2006, SEC File No. 005-55113, and incorporated by reference herein.

(2)Duly authorized under Special Limited Power of Attorney appointing Alan Heuberger attorney-in-fact, dated August 12, 2008, by and on behalf of Michael Larson, filed as Exhibit 99.1 to Amendment No. 1 to Cascade’s Schedule 13D with respect to Otter Tail Corporation on April 15, 2009, SEC File No. 005-06638 and incorporated by reference herein.

(3)Duly authorized under Special Limited Power of Attorney appointing Alan Heuberger attorney-in-fact, dated August 12, 2008, by and on behalf of William H. Gates III and Melinda French Gates as Co-Trustees, filed as Exhibit 99.5 to Cascade’s Schedule 13D with respect to Grupo Televisa, S.A.B. on May 7, 2009, SEC File No. 005-60431 and incorporated by reference herein.

(4)Duly authorized under Special Limited Power of Attorney appointing Alan Heuberger attorney-in-fact, dated August 12, 2008, by and on behalf of William H. Gates III, filed as Exhibit 99.2 to Amendment No. 1 to Cascade’s Schedule 13D with respect to Otter Tail Corporation on April 15, 2009, SEC File No. 005-06638 and incorporated by reference herein.

EX-99.1

Exhibit 99.1

The table below specifies the date, quantity, weighted-average 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 past sixty days.  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 affected on the New York Stock Exchange or through Electronic Communication Networks.

Trade Date	Quantity	Weighted Average Price/Price Per Share Sold ($)	Range of Price ($)
9/13/2010	38,400	83.1298	82.9400 - 83.3500
9/14/2010	30,000	83.3300	83.0800 - 83.5700
9/15/2010	40,000	83.3432	82.9200 - 83.5300
9/16/2010	21,500	83.3018	83.0000 - 83.4700
9/17/2010	30,200	82.7362	82.7200 - 83.7000
	14,800	83.9578	83.7200 - 84.1400
9/20/2010	33,800	83.3669	82.8800 - 83.6400
9/21/2010	21,500	83.4191	83.1400 - 83.7000
9/22/2010	24,504	82.8053	82.4000 - 83.3600
	500	83.4200
9/23/2010	22,200	81.3636	81.0700 - 82.0400
	14,000	82.4679	82.1200 - 82.7500
9/24/2010	21,100	82.4171	82.0000 - 82.9600
	17,099	83.5466	83.0300 - 84.0000
	50,500	84.4651	84.0400 - 85.0000
	12,400	85.4071	85.2200 - 85.6300
9/27/2010	32,900	83.4839	82.8100 - 83.8000
9/28/2010	48,700	82.8208	82.3000 - 83.2700
	1,400	83.3143	83.3000 - 83.3300
9/29/2010	37,175	82.8148	82.3000 - 83.2900
	1,500	83.3033	83.3000 - 83.3100
9/30/2010	37,425	82.9184	82.5400 - 83.5300
	900	83.5856	83.5500 - 83.6200
10/1/2010	41,500	82.7247	82.3400 - 82.9500
10/4/2010	36,000	82.0691	81.6700 - 82.6500
	4,500	82.7578	82.7000 - 82.8000
10/5/2010	14,300	82.7504	82.0200 - 83.0100
	35,700	83.4385	83.0200 - 83.7200
10/6/2010	40,000	83.3644	82.8800 - 83.5100
10/7/2010	31,400	83.2751	82.8200 - 83.6400
10/8/2010	38,700	83.1617	82.9200 - 83.4000
10/11/2010	13,604	82.9951	82.6300 - 83.3000
10/12/2010	43,570	82.8037	82.3300 - 83.3250
	1,430	83.3353	83.3300 - 83.3500
10/13/2010	40,000	83.6819	83.4000 - 83.8400
10/14/2010	35,850	83.8210	83.4800 - 84.3800
10/15/2010	40,000	83.5914
10/18/2010	44,709	83.4085	83.2800 - 83.5700
10/19/2010	18,500	82.5278	82.2000 - 83.1700
	12,100	83.3085	83.2300 - 83.4100
10/20/2010	40,100	82.8724	82.4800 - 83.0900
10/21/2010	35,977	83.1437	82.9000 - 83.4600
10/22/2010	40,709	83.1653	82.8500 - 83.4200

Trade Date	Quantity	Weighted Average Price/Price Per Share Sold ($)	Range of Price ($)
10/25/2010	40,000	83.5798	83.3200 - 83.9150
10/26/2010	29,500	81.8466	81.4400 - 82.2100
	12,200	83.0034	82.9000 - 83.0900
10/27/2010	46,000	80.4475	80.1800 - 80.6300
	3,400	81.5691	81.3500 - 81.6600
10/28/2010	36,700	80.3813	80.1100 - 81.0800
10/29/2010	54,110	79.5094	78.9300 - 79.9200
	7,800	80.0901	79.9400 - 80.1400
11/1/2010	27,300	80.0192	79.7400 - 80.6600
	10,453	81.0325	80.7700 - 81.2500
11/2/2010	43,100	80.3813	80.2000 - 80.5600
11/3/2010	45,600	81.0204	80.8000 - 81.3500
11/4/2010	49,600	82.3055	82.0121 - 83.0100
	400	83.0450	83.0400 - 83.0500
11/5/2010	41,414	83.2395	82.6400 - 83.6000
	8,500	83.6906	83.6400 - 83.7500
11/8/2010	25,100	82.3829	82.1300 - 82.9600
11/9/2010	41,410	81.2014	80.7200 - 81.5200
	993	82.0899	82.0800 - 82.1000
11/10/2010	31,000	81.4112	80.8000 - 81.7900
	17,500	81.9378	81.8000 - 82.1400
11/11/2010	35,825	81.3094	81.0900 - 81.5800