UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 13F

Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: September 30, 2007

Check here if Amendment [ ]; Amendment Number: __________

This Amendment (Check only one.): [ ] is a restatement.
[ ] adds new holdings entries.

Institutional Investment Manager Filing this Report: 

Name: Berkshire Hathaway Inc.
Address: 1440 Kiewit Plaza
 Omaha, NE 68131

Form 13F File Number: 28-4545

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name: Marc D. Hamburg
Title: Vice President
Phone: 402-346-1400

Signature, Place, and Date of Signing: 

(s) Marc D. Hamburg Omaha, NE November 14, 2007
------------------------------------- -------------------- -----------------
[Signature] [City, State] [Date]

Report Type (Check only one.):

[ ] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
are reported in this report.)

[ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all
holdings are reported by other reporting manager(s).)

[X] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this
reporting manager are reported in this report and a portion are reported by
other reporting manager(s).)

List of Other Managers Reporting for this Manager: 

Form 13F File Number Name
-------------------- ----
28-5194 General Re - New England Asset Management, Inc.

 Form 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers: 19
Form 13F Information Table Entry Total: 97
Form 13F Information Table Value Total: $65,805,833
 (thousands)

Confidential Information has been omitted from the public Form 13F and filed separately with the Commission.

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state "NONE" and omit the column headings and list entries.] 

 FORM 13F FILE
NO. NUMBER NAME
--- ------------- ----
 1. 28-5678 Berkshire Hathaway Life Insurance Co. of Nebraska
 2. 28-10388 BH Columbia Inc.
 3. 28-719 Blue Chip Stamps
 4. 28-554 Buffett, Warren E.
 5. 28-1517 Columbia Insurance Co.
 6. 28-2226 Cornhusker Casualty Co.
 7. 28-06102 Cypress Insurance Company
 8. 28-11217 Fechheimer Brothers Company
 9. 28- GEC Investment Managers
10. 28-852 GEICO Corp.
11. 28-101 Government Employees Ins. Corp.
12. 28-1066 National Fire & Marine
13. 28-718 National Indemnity Co.
14. 28-5006 National Liability & Fire Ins. Co.
15. 28-11222 Nebraska Furniture Mart
16. 28-717 OBH Inc.
17. 28-1357 Wesco Financial Corp.
18. 28-3091 Wesco Financial Ins. Co.
19. 28-3105 Wesco Holdings Midwest, Inc.

 BERKSHIRE HATHAWAY INC.
 Form 13F Information Table
 September 30, 2007


 Column 6
 Investment
 Discretion Column 8
 Column 4 Column 5 -------------------- Voting Authority
 Column 2 Column 3 Market Shares or (b) (c) Column 7 --------------------------
Column 1 Title of CUSIP Value Principal (a) Shared- Shared- Other (a) (b) (c)
Name of Issuer Class Number (In Thousands) Amount $ Sole Defined Other Managers Sole Shared None
-------------- -------- ------------ -------------- ----------- ---- ------- ------- -------------------- ----------- ------ -------
American
 Express Co. Com 025816 10 9 1,022,672 17,225,400 X 4, 2, 5, 16 17,225,400
 474,642 7,994,634 X 4, 12, 16 7,994,634
 7,139,592 120,255,879 X 4, 13, 16 120,255,879
 115,362 1,943,100 X 4, 3, 16, 17, 18, 19 1,943,100
 83,101 1,399,713 X 4, 15, 16 1,399,713
 49,861 839,832 X 4, 8, 16 839,832
 115,899 1,952,142 X 4, 16 1,952,142
American
 Standard
 Companies Com 029712 10 6 390,480 10,962,400 X 4, 9, 10, 11, 13, 16 10,962,400
Ameriprise
 Financial,
 Inc. Com 03076C 10 6 13,992 221,706 X 4, 12, 16 221,706
 24,526 388,620 X 4, 3, 16, 17, 18, 19 388,620
 17,667 279,942 X 4, 15, 16 279,942
 10,600 167,966 X 4, 8, 16 167,966
 24,640 390,428 X 4, 16 390,428
Anheuser Busch
 Cos. Inc. Com 035229 10 3 1,777,804 35,563,200 X 4, 13, 16 35,563,200
Bank of
 America
 Corp. Com 060505 10 4 457,457 9,100,000 X 4, 9, 10, 11, 13, 16 9,100,000
Burlington
 Northern
 Santa Fe Com 12189T 10 4 4,300,468 52,981,000 X 4, 13, 16 52,981,000
Carmax Inc. Com 143130 10 2 284,250 13,981,800 X 4, 9, 10, 11, 13, 16 13,981,800
Coca Cola Com 191216 10 0 22,788 400,000 X 4, 16 400,000
 102,068 1,776,000 X 4, 14, 16 1,776,000
 414,106 7,205,600 X 4, 3, 16, 17, 18, 19 7,205,600
 2,306,938 40,141,600 X 4, 2, 5, 16 40,141,600
 8,042,674 139,945,600 X 4, 13, 16 139,945,600
 525,230 9,139,200 X 4, 12, 16 9,139,200
 27,586 480,000 X 4, 15, 16 480,000
 52,413 912,000 X 4, 7, 16 912,000
Comcast Corp CLA SPL 20030N 20 0 287,519 12,000,000 X 4, 9, 10, 11, 13, 16 12,000,000
Comdisco
 Holding Co. Com 200334 10 0 1,815 1,217,795 X 4, 13, 16 1,217,795
 451 302,862 X 4, 2, 5, 16 302,862
 26 17,209 X 4, 12, 16 17,209
ConocoPhillips Com 20825C 10 4 1,536,739 17,508,700 X 4, 13, 16 17,508,700
Costco
 Wholesale
 Corp. Com 22160K 10 5 322,438 5,254,000 X 4, 13, 16 5,254,000
Dow Jones &
 Company,
 Inc. Com 260561 10 5 378,785 6,344,804 X 4, 13, 16 6,344,804
Gannett Inc. Com 364730 10 1 150,660 3,447,600 X 4, 13, 16 3,447,600
General
 Electric
 Co. Com 369604 10 3 322,005 7,777,900 X 4 7,777,900
 -----------
 30,797,254
 -----------

BERKSHIRE HATHAWAY INC.
Form 13F Information Table
September 30, 2007 

 Column 6
 Investment
 Discretion Column 8
 Column 4 Column 5 -------------------- Voting Authority
 Column 2 Column 3 Market Shares or (b) (c) Column 7 --------------------------
Column 1 Title of CUSIP Value Principal (a) Shared- Shared- Other (a) (b) (c)
Name of Issuer Class Number (In Thousands) Amount $ Sole Defined Other Managers Sole Shared None
-------------- -------- ------------ -------------- ----------- ---- ------- ------- -------------------- ----------- ------ -------
Home Depot
 Inc. Com 437076 10 2 135,632 4,181,000 X 4, 9, 10, 11, 13, 16 4,181,000
Ingersoll-Rd
 Company
 LTD. CLA G4776G 10 1 34,643 636,600 X 4 636,000
Iron Mountain
 Inc. Com 462846 10 6 275,778 9,047,850 X 4, 9, 10, 11, 13, 16 9,047,850
Johnson &
 Johnson Com 478160 10 4 321,766 4,897,500 X 4 4,897,500
 1,383,530 21,058,300 X 4, 2, 5, 16 21,058,300
 1,733,570 26,386,148 X 4, 13, 16 26,386,148
 11,707 178,200 X 4, 3, 16, 17, 18, 19 178,200
 597,029 9,087,200 X 4, 12, 16 9,087,200
Lowes
 Companies
 Inc. Com 548661 10 7 196,140 7,000,000 X 4, 9, 10, 11, 13, 16 7,000,000
M & T Bank
 Corporation Com 55261F 10 4 620,396 5,997,060 X 4, 13, 16 5,997,060
 56,484 546,000 X 4, 9, 10, 11, 13, 16 546,000
 17,142 165,700 X 4, 12, 16 165,700
Moody's Com 615369 10 5 1,626,942 32,280,600 X 4, 13, 16 32,280,600
 792,258 15,719,400 X 4, 9, 10, 11, 13, 16 15,719,400
Nike Inc. Com 654106 10 3 448,221 7,641,000 X 4, 9, 10, 11, 13, 16 7,641,000
Norfolk
 Southern
 Corp. Com 655844 10 8 100,342 1,933,000 X 4, 2, 5, 16 1,933,000
Procter &
 Gamble Co. Com 742718 10 9 4,114,890 58,500,000 X 4, 13, 16 58,500,000
 1,530,036 21,752,000 X 4, 2, 5, 16 21,752,000
 438,922 6,240,000 X 4, 12, 16 6,240,000
 503,248 7,154,500 X 4, 3, 16, 17, 18, 19 7,154,500
 54,865 780,000 X 4, 14, 16 780,000
 109,730 1,560,000 X 4, 7, 16 1,560,000
 385,850 5,485,500 X 4, 9, 10, 11, 13, 16 5,485,500
 307,737 4,375,000 X 4 4,375,000
Sanofi Aventis ADR 80105N 10 5 20,722 488,500 X 4, 9, 10, 11, 13, 16 488,500
 107,021 2,522,885 X 4, 13, 16 2,522,885
 7,182 169,300 X 4, 12, 16 169,300
 14,847 350,000 X 4, 2, 5, 16 350,000
Sun Trusts
 Banks Inc. Com 867914 10 3 177,416 2,344,600 X 4, 13, 16 2,344,600
 65,076 860,000 X 4, 2, 5, 16 860,000
Torchmark
 Corp. Com 891027 10 4 4,833 77,551 X 1, 4, 13, 16 77,551
 28,027 449,728 X 4, 2, 5, 16 449,728
 103,258 1,656,900 X 4, 13, 16 1,656,900
 39,866 639,700 X 4, 12, 16 639,700
 -----------
 16,365,106
 -----------

BERKSHIRE HATHAWAY INC.
Form 13F Information Table
September 30, 2007 

 Column 6
 Investment
 Discretion Column 8
 Column 4 Column 5 -------------------- Voting Authority
 Column 2 Column 3 Market Shares or (b) (c) Column 7 --------------------------
Column 1 Title of CUSIP Value Principal (a) Shared- Shared- Other (a) (b) (c)
Name of Issuer Class Number (In Thousands) Amount $ Sole Defined Other Managers Sole Shared None
-------------- -------- ------------ -------------- ----------- ---- ------- ------- -------------------- ----------- ------ -------
US Bancorp Com 902973 30 4 828,907 25,481,300 X 4, 2, 5, 16 25,481,300
 916,482 28,173,426 X 4, 13, 16 28,173,426
 328,878 10,110,000 X 4 10,110,000
 56,134 1,725,600 X 4, 3, 16, 17, 18, 19 1,725,600
USG
 Corporation Com 903293 40 5 641,061 17,072,192 X 4, 13, 16 17,072,192
Union Pacific
 Corp. Com 907818 10 8 503,456 4,453,000 X 4, 2, 5, 16 4,453,000
United Parcel
 Service
 Inc. Com 911312 10 6 107,333 1,429,200 X 4 1,429,200
United Health
 Group Inc. Com 91324P 10 2 290,580 6,000,000 X 4, 9, 10, 11, 13, 16 6,000,000
Wabco Holdings
 Inc. Com 929251 10 6 126,225 2,700,000 X 4, 9, 10, 11, 13, 16 2,700,000
Wal-Mart
 Stores,
 Inc. Com 931142 10 3 829,276 18,998,300 X 4, 13, 16 18,998,300
 41,293 946,000 X 4, 9, 10, 11, 13, 16 946,000
Washington
 Post Co. Cl B 939640 10 8 717,947 894,304 X 4, 13, 16 894,304
 119,064 148,311 X 4, 5, 1, 6, 13, 16 148,311
 520,347 648,165 X 4, 12, 16 648,165
 29,692 36,985 X 4, 14, 16 36,985
Wells Fargo &
 Co. Del Com 949746 10 1 1,788,983 50,224,120 X 4, 2, 5, 16 50,224,120
 264,236 7,418,200 X 4, 3, 16, 17, 18, 19 7,418,200
 1,364,710 38,313,040 X 4, 12, 16 38,313,040
 99,309 2,788,000 X 4, 14, 16 2,788,000
 182,374 5,120,000 X 4, 16 5,120,000
 4,580,607 128,596,488 X 4, 13, 16 128,596,488
 43,090 1,209,720 X 4, 15, 16 1,209,720
 60,554 1,700,000 X 4, 8, 16 1,700,000
 10,686 300,000 X 4, 7, 16 300,000
 712,400 20,000,000 X 4, 9, 10, 11, 13, 16 20,000,000
 569,920 16,000,000 X 4, 1, 6, 13, 16 16,000,000
 284,960 8,000,000 X 4 8,000,000
Wellpoint Inc. Com 949773V 10 7 355,140 4,500,000 X 4, 9, 10, 11, 13, 16 4,500,000
Wesco Finl
 Corp. Com 950817 10 6 2,269,829 5,703,087 X 4, 3, 16 5,703,087
 -----------
 18,643,473
 -----------
GRAND TOTAL $65,805,833
 ===========