UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: December 31, 2006 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 February 13, 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: 20 Form 13F Information Table Entry Total: 89 Form 13F Information Table Value Total: $52,781,748 (thousands) Confidential information has been omitted from the 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.] NO. FORM 13F FILE NUMBER NAME 1. 28-5678 Berkshire Hathaway Life Insurance Co. of Nebraska 2. 28- BH Columbia Inc. 3. 28-5676 BHG Life Insurance Co. 4. 28-719 Blue Chip Stamps 5. 28-554 Buffett, Warren E. 6. 28-1517 Columbia Insurance Co. 7. 28-2226 Cornhusker Casualty Co. 8. 28- Cypress Insurance Company 9. 28- Fechheimer Brothers Company 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- Nebraska Furniture Mart 16. 28-717 OBH Inc. 17. 28-2740 Plaza Investment Managers 18. 28-1357 Wesco Financial Corp. 19. 28-3091 Wesco Financial Ins. Co. 20. 28-3105 Wesco Holdings Midwest, Inc. BERKSHIRE HATHAWAY INC. Form 13F Information Table December 31, 2006 COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 -------------- -------- ----------- ----------- -------------------- ---------- --------------------- ----------------------- TITLE OF VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER CLASS CUSIP (X$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE -------------- -------- ----------- ----------- ----------- --- ---- ---------- --------------------- ----------- ------ ---- American Express Co. Com 025816 10 9 1,045,065 17,225,400 X 5, 2, 6, 16 17,225,400 485,034 7,994,634 X 5, 12, 16 7,994,634 7,295,924 120,255,879 X 5, 13, 16 120,255,879 117,888 1,943,100 X 5, 4, 16, 18, 19, 20 1,943,100 84,921 1,399,713 X 5, 15, 16 1,399,713 50,953 839,832 X 5, 9, 16 839,832 118,436 1,952,142 X 5, 16 1,952,142 American Standard Companies Com 029712 10 6 507,225 11,062,700 X 5, 10, 11, 13, 16, 17 11,062,700 Ameriprise Financial, Inc. Com 03076C 10 6 187,757 3,445,080 X 5, 2, 6, 16 3,445,080 87,141 1,598,926 X 5, 12, 16 1,598,926 108,982 1,999,675 X 5, 13, 16 1,999,675 21,180 388,620 X 5, 4, 16, 18, 19, 20 388,620 15,257 279,942 X 5, 15, 16 279,942 9,154 167,966 X 5, 9, 16 167,966 21,278 390,428 X 5, 16 390,428 Anheuser Busch Cos. Inc. Com 035229 10 3 1,791,736 36,417,400 X 5, 13, 16 36,417,400 Block H & R Com 093671 10 5 94,773 4,113,400 X 5, 13, 16 4,113,400 Coca Cola Com 191216 10 0 19,300 400,000 X 5, 16 400,000 85,692 1,776,000 X 5, 14, 16 1,776,000 347,670 7,205,600 X 5, 4, 16, 18, 19, 20 7,205,600 1,936,832 40,141,600 X 5, 2, 6, 16 40,141,600 6,752,375 139,945,600 X 5, 13, 16 139,945,600 440,966 9,139,200 X 5, 12, 16 9,139,200 23,160 480,000 X 5, 15, 16 480,000 44,004 912,000 X 5, 8, 16 912,000 Comcast Corp CLA SPL 20030N 20 0 335,040 8,000,000 X 5, 10, 11, 13, 16, 17 8,000,000 Comdisco Holding Co. Com 200334 10 0 11,448 1,206,369 X 5, 13, 16 1,206,369 2,847 300,028 X 5, 2, 6, 16 300,028 162 17,049 X 5, 12, 16 17,049 ConocoPhillips Com 20825C 10 4 1,290,646 17,938,100 X 5, 13, 16 17,938,100 Costco Wholesale Corp. Com 22160K 10 5 277,779 5,254,000 X 5, 13, 16 5,254,000 First Data Corporation Com 319963 10 4 255,200 10,000,000 X 5, 10, 11, 13, 16, 17 10,000,000 Gannett Inc. Com 364730 10 1 208,442 3,447,600 X 5, 13, 16 3,447,600 General Electric Co. Com 369604 10 3 289,416 7,777,900 X 5 7,777,900 ----------- 24,363,683 ----------- BERKSHIRE HATHAWAY INC. Form 13F Information Table December 31, 2006 Home Depot Inc. Com 437076 10 2 167,909 4,181,000 X 5, 10, 11, 13, 16, 17 4,181,000 Ingersoll-Rd Company LTD. CLA G47766 10 1 24,887 636,600 X 5 636,000 Iron Mountain Inc. Com 462846 10 6 249,359 6,031,900 X 5, 10, 11, 13, 16, 17 6,031,900 Johnson & Johnson Com 478160 10 4 285,371 4,322,500 X 5 4,322,500 1,337,981 20,266,300 X 5, 2, 6, 16 20,266,300 Lowes Companies Inc. Com 548661 10 7 218,050 7,000,000 X 5, 10, 11, 13, 16, 17 7,000,000 M & T Bank Corporation Com 55261F 10 4 732,601 5,997,060 X 5, 13, 16 5,997,060 66,699 546,000 X 5, 10, 11, 13, 16, 17 546,000 20,242 165,700 X 5, 12, 16 165,700 Moody's Com 615369 10 5 2,229,298 32,280,600 X 5, 13, 16 32,280,600 1,085,582 15,719,400 X 5, 10, 11, 13, 16, 17 15,719,400 Nike Inc. Com 654106 10 3 396,120 4,000,000 X 5, 10, 11, 13, 16, 17 4,000,000 Petrochina Co LTD ADR 71646E 10 0 10,263 72,900 X 5, 13, 16 72,900 82,511 586,100 X 5, 10, 11, 13, 16, 17 586,100 Pier 1 Imports Inc. Com 720279 10 8 8,826 1,483,400 X 5, 10, 11, 13, 16, 17 1,483,400 Proctor & Gamble Co. Com 742718 10 9 3,759,795 58,500,000 X 5, 13, 16 58,500,000 1,303,396 20,280,000 X 5, 2, 6, 16 20,280,000 401,045 6,240,000 X 5, 12, 16 6,240,000 459,820 7,154,500 X 5, 4, 16, 18, 19, 20 7,154,500 50,131 780,000 X 5, 14, 16 780,000 100,261 1,560,000 X 5, 8, 16 1,560,000 352,553 5,485,500 X 5, 10, 11, 13, 16, 17 5,485,500 Sanofi Adventis ADR 80105N 10 5 22,554 488,500 X 5, 10, 11, 13, 16, 17 488,500 Servicemaster Company Com 81760N 10 9 52,414 3,998,000 X 5, 10, 11, 13, 16, 17 3,998,000 Sun Trusts Banks Inc. Com 867914 10 3 198,001 2,344,600 X 5, 13, 16 2,344,600 72,627 860,000 X 5, 2, 6, 16 860,000 Torchmark Corp. Com 891027 10 4 4,945 77,551 X 1, 5, 13, 16 77,551 28,675 449,728 X 5, 2, 6, 16 449,728 105,644 1,656,900 X 5, 13, 16 1,656,900 40,787 639,700 X 5, 12, 16 639,700 Tyco International LTD Com 902124 10 6 304,000 10,000,000 X 5, 10, 11, 13, 16, 17 10,000,000 US Bancorp Com 902973 30 4 843,491 23,307,300 X 5, 2, 6, 16 23,307,300 USG Corporation Com 903293 40 5 935,556 17,072,192 X 5, 13, 16 17,072,192 United Parcel Service Inc. Com 911312 10 6 107,161 1,429,200 X 5 1,429,200 United Health Group Inc. Com 91324P 10 2 47,615 1,021,400 X 5, 10, 11, 13, 16, 17 1,021,400 Wal-Mart Stores, Inc. Com 931142 10 3 877,341 18,998,300 X 5, 13, 16 18,998,300 43,686 946,000 X 5, 10, 11, 16, 17 946,000 ----------- 17,027,197 ----------- BERKSHIRE HATHAWAY INC. Form 13F Information Table December 31, 2006 Washington Post Co. Cl B 939640 10 8 666,793 894,304 X 5, 13, 16 894,304 110,581 148,311 X 5, 1, 3, 7, 13, 16 148,311 483,272 648,165 X 5, 12, 16 648,165 27,576 36,985 X 5, 14, 16 36,985 Wells Fargo & Co. Del Com 949746 10 1 1,416,953 39,846,820 X 5, 2, 6, 16 39,846,820 72,656 2,043,200 X 5, 4, 16, 18, 19, 20 2,043,200 1,167,262 32,825,140 X 5, 12, 16 32,825,140 99,141 2,788,000 X 5, 14, 16 2,788,000 182,067 5,120,000 X 5, 16 5,120,000 2,731,318 76,808,720 X 5, 13, 16 76,808,720 43,018 1,209,720 X 5, 15, 16 1,209,720 60,452 1,700,000 X 5, 9, 16 1,700,000 10,668 300,000 X 5, 8, 16 300,000 711,200 20,000,000 X 5, 10, 11, 13, 16, 17 20,000,000 475,811 13,380,500 X 5, 1, 3, 7, 13, 16 13,380,500 284,480 8,000,000 X 5 8,000,000 Wesco Finl Corp. Com 950817 10 6 2,623,420 5,703,087 X 5, 4, 16 5,703,087 Western Union Com 959802 10 9 224,200 10,000,000 X 5, 10, 11, 13, 16, 17 10,000,000 ----------- 11,390,868 ----------- GRAND TOTAL $52,781,748 ===========