BERKSHIRE HATHAWAY INC. 1440 KIEWIT PLAZA OMAHA, NEBRASKA 68131 TELEPHONE (402) 346-1400 FAX (402) 346-3375 May 14, 2008 Securities and Exchange Commission Judiciary Plaza 450 Fifth Street, N.W. Washington, DC 20549 Gentlemen: Enclosed herewith for filing is one Form 13F for the Quarter ended March 31, 2008. Yours truly, BERKSHIRE HATHAWAY INC. /s/ Marc D. Hamburg ----------------------------------- Marc D. Hamburg Vice President Enclosures UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2008 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 May 14, 2008 ------------------- [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: 21 Form 13F Information Table Entry Total: 105 Form 13F Information Table Value Total: $66,461,224 xt (thousands) 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. 28-10388 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- Medical Protective Corp. 13. 28-1066 National Fire & Marine 14. 28-718 National Indemnity Co. 15. 28-5006 National Liability & Fire Ins. Co. 16. 28-11222 Nebraska Furniture Mart 17. 28-717 OBH Inc. 18. 28- U.S. Investment Corp. 19. 28-1357 Wesco Financial Corp. 20. 28-3091 Wesco Financial Ins. Co. 21. 28-3105 Wesco Holdings Midwest, Inc. BERKSHIRE HATHAWAY INC. Form 13F Information Table March 31, 2008 Column 6 Investment Column 4 Discretion Column 8 Market Column 5 -------------------- Voting Authority Column 2 Column 3 Value Shares or (b) (c) Column 7 -------------------------- Column 1 Title of CUSIP (In Principal (a) Shared- Shared- Other (a) (b) (c) Name of Issuer Class Number Thousands) Amount $ Sole Defined Other Managers Sole Shared None ----------------- -------- ------------ ----------- ----------- ---- ------- ------- -------------------- ----------- ------ ------- American Express Co. Com 025816 10 9 753,094 17,225,400 X 4, 2, 5, 17 17,225,400 349,525 7,994,634 X 4, 13, 17 7,994,634 5,257,587 120,255,879 X 4, 14, 17 120,255,879 84,952 1,943,100 X 4, 3, 17, 19, 20, 21 1,943,100 61,195 1,399,713 X 4, 16, 17 1,399,713 36,717 839,832 X 4, 8, 17 839,832 85,348 1,952,142 X 4, 17 1,952,142 Anheuser Busch Cos. Inc. Com 035229 10 3 1,678,354 35,371,000 X 4, 14, 17 35,371,000 9,120 192,200 X 4, 18 192,200 Bank of America Corp. Com 060505 10 4 344,981 9,100,000 X 4, 9, 10, 11, 14, 17 9,100,000 Burlington Northern Santa Fe Com 12189T 10 4 5,882,291 63,785,418 X 4, 14, 17 63,785,418 Carmax Inc. Com 143130 10 2 413,646 21,300,000 X 4, 9, 10, 11, 14, 17 21,300,000 Coca Cola Com 191216 10 0 24,348 400,000 X 4, 17 400,000 108,105 1,776,000 X 4, 15, 17 1,776,000 438,605 7,205,600 X 4, 3, 17, 19, 20, 21 7,205,600 2,443,419 40,141,600 X 4, 2, 5, 17 40,141,600 8,518,489 139,945,600 X 4, 14, 17 139,945,600 556,303 9,139,200 X 4, 13, 17 9,139,200 29,218 480,000 X 4, 16, 17 480,000 55,513 912,000 X 4, 7, 17 912,000 Comcast Corp CLA SPL 20030N 20 0 227,640 12,000,000 X 4, 9, 10, 11, 14, 17 12,000,000 Comdisco Holding Co. Com 200334 10 0 11,813 1,217,795 X 4, 14, 17 1,217,795 2,938 302,862 X 4, 2, 5, 17 302,862 167 17,209 X 4, 13, 17 17,209 ConocoPhillips Com 20825C 10 4 1,334,338 17,508,700 X 4, 14, 17 17,508,700 Costco Wholesale Corp. Com 22160K 10 5 341,352 5,254,000 X 4, 14, 17 5,254,000 Gannett Inc. Com 364730 10 1 100,153 3,447,600 X 4, 14, 17 3,447,600 General Electric Co. Com 369604 10 3 287,860 7,777,900 X 4 7,777,900 GlaxoSmithKline ADR 37733W 10 5 64,091 1,510,500 X 4, 14, 17 1,510,500 Home Depot Inc. Com 437076 10 2 116,943 4,181,000 X 4, 9, 10, 11, 14, 17 4,181,000 Ingersoll-Rd Company LTD. CLA G4776G 10 1 28,353 636,600 X 4 636,000 13,374 300,000 X 4, 9, 10, 11, 14, 17 300,000 Iron Mountain Inc. Com 462846 10 6 89,161 3,372,200 X 4, 9, 10, 11, 14, 17 3,372,200 ---------- 29,748,993 ---------- BERKSHIRE HATHAWAY INC. Form 13F Information Table March 31, 2008 Column 6 Investment Column 4 Discretion Column 8 Market Column 5 -------------------- Voting Authority Column 2 Column 3 Value Shares or (b) (c) Column 7 -------------------------- Column 1 Title of CUSIP (In Principal (a) Shared- Shared- Other (a) (b) (c) Name of Issuer Class Number Thousands) Amount $ Sole Defined Other Managers Sole Shared None ----------------- -------- ------------ ----------- ----------- ---- ------- ------- -------------------- ----------- ------ ------- Johnson & Johnson Com 478160 10 4 280,401 4,322,500 X 4 4,322,500 1,314,675 20,266,300 X 4, 2, 5, 17 20,266,300 1,711,669 26,386,148 X 4, 14, 17 26,386,148 21,102 325,300 X 4, 3, 17, 19, 20, 21 325,300 589,487 9,087,200 X 4, 13, 17 9,087,200 51,377 792,000 X 4, 2, 5, 12, 17 792,000 37,300 575,000 X 4, 18 575,000 Kraft Foods Inc. Com 50075N 10 4 2,766,787 89,222,400 X 4, 14, 17 89,222,400 954,807 30,790,300 X 4, 2, 5, 17 30,790,300 310,100 10,000,000 X 4, 3, 17, 19, 20, 21 10,000,000 8,056 259,800 X 4, 2, 5, 12, 17 259,800 248,080 8,000,000 X 4 8,000,000 Lowes Companies Inc. Com 548661 10 7 160,580 7,000,000 X 4, 9, 10, 11, 14, 17 7,000,000 M & T Bank Corporation Com 55261F 10 4 483,150 6,003,360 X 4, 14, 17 6,003,360 43,942 546,000 X 4, 9, 10, 11, 14, 17 546,000 13,336 165,700 X 4, 13, 17 165,700 Moody's Com 615369 10 5 1,124,333 32,280,600 X 4, 14, 17 32,280,600 547,507 15,719,400 X 4, 9, 10, 11, 14, 17 15,719,400 Nike Inc. Com 654106 10 3 519,588 7,641,000 X 4, 9, 10, 11, 14, 17 7,641,000 Norfolk Southern Corp. Com 655844 10 8 105,001 1,933,000 X 4, 2, 5, 17 1,933,000 Procter & Gamble Co. Com 742718 10 9 4,099,095 58,500,000 X 4, 14, 17 58,500,000 1,524,163 21,752,000 X 4, 2, 5, 17 21,752,000 437,237 6,240,000 X 4, 13, 17 6,240,000 501,316 7,154,500 X 4, 3, 17, 19, 20, 21 7,154,500 54,655 780,000 X 4, 15, 17 780,000 109,309 1,560,000 X 4, 7, 17 1,560,000 384,369 5,485,500 X 4, 9, 10, 11, 14, 17 5,485,500 306,556 4,375,000 X 4 4,375,000 Sanofi Aventis ADR 80105N 10 5 18,338 488,500 X 4, 9, 10, 11, 14, 17 488,500 96,813 2,578,933 X 4, 14, 17 2,578,933 6,356 169,300 X 4, 13, 17 169,300 13,139 350,000 X 4, 2, 5, 12, 17 350,000 Sun Trusts Banks Inc. Com 867914 10 3 129,281 2,344,600 X 4, 14, 17 2,344,600 47,420 860,000 X 4, 2, 5, 17 860,000 Torchmark Corp. Com 891027 10 4 4,662 77,551 X 1, 4, 14, 17 77,551 27,033 449,728 X 4, 2, 5, 17 449,728 99,596 1,656,900 X 4, 14, 17 1,656,900 38,452 639,700 X 4, 13, 17 639,700 ---------- 19,189,068 ---------- BERKSHIRE HATHAWAY INC. Form 13F Information Table March 31, 2008 Column 6 Investment Column 4 Discretion Column 8 Market Column 5 -------------------- Voting Authority Column 2 Column 3 Value Shares or (b) (c) Column 7 -------------------------- Column 1 Title of CUSIP (In Principal (a) Shared- Shared- Other (a) (b) (c) Name of Issuer Class Number Thousands) Amount $ Sole Defined Other Managers Sole Shared None ----------------- -------- ------------ ----------- ----------- ---- ------- ------- -------------------- ----------- ------ ------- Trane Inc. Com 892893 10 8 500,397 10,901,900 X 4, 9, 10, 11, 14, 17 10,901,900 US Bancorp Com 902973 30 4 754,224 23,307,300 X 4, 2, 5, 17 23,307,300 911,692 28,173,426 X 4, 14, 17 28,173,426 270,691 8,365,000 X 4 8,365,000 157,473 4,866,300 X 4, 3, 17, 19, 20, 21 4,866,300 70,351 2,174,000 X 4, 2, 5, 12, 17 2,174,000 56,468 1,745,000 X 4, 18 1,745,000 USG Corporation Com 903293 40 5 628,598 17,072,192 X 4, 14, 17 17,072,192 Union Pacific Corp. Com 907818 10 8 558,317 4,453,000 X 4, 2, 5, 17 4,453,000 United Parcel Service Inc. Com 911312 10 6 104,360 1,429,200 X 4 1,429,200 United Health Group Inc. Com 91324P 10 2 219,904 6,400,000 X 4, 9, 10, 11, 14, 17 6,400,000 Wabco Holdings Inc. Com 92927K 10 2 123,174 2,700,000 X 4, 9, 10, 11, 14, 17 2,700,000 Wal-Mart Stores, Inc. Com 931142 10 3 1,000,830 18,998,300 X 4, 14, 17 18,998,300 49,835 946,000 X 4, 9, 10, 11, 14, 17 946,000 Washington Post Co. Cl B 939640 10 8 591,582 894,304 X 4, 14, 17 894,304 98,108 148,311 X 4, 5, 1, 6, 14, 17 148,311 428,761 648,165 X 4, 13, 17 648,165 24,466 36,985 X 4, 15, 17 36,985 Wells Fargo & Co. Del Com 949746 10 1 1,556,542 53,489,420 X 4, 2, 5, 17 53,489,420 367,917 12,643,200 X 4, 3, 17, 19, 20, 21 12,643,200 1,114,909 38,313,040 X 4, 13, 17 38,313,040 81,131 2,788,000 X 4, 15, 17 2,788,000 29,100 1,000,000 X 4, 17 1,000,000 3,771,112 129,591,488 X 4, 14, 17 129,591,488 46,842 1,609,720 X 4, 16, 17 1,609,720 49,470 1,700,000 X 4, 8, 17 1,700,000 23,862 820,000 X 4, 7, 17 820,000 582,000 20,000,000 X 4, 9, 10, 11, 14, 17 20,000,000 465,600 16,000,000 X 4, 1, 6, 14, 17 16,000,000 232,806 8,000,000 X 4 8,000,000 78,570 2,700,000 X 4, 2, 5, 12, 17 2,700,000 58,200 2,000,000 X 4, 18 2,000,000 Wellpoint Inc. Com 949773V 10 7 211,824 4,800,000 X 4, 9, 10, 11, 14, 17 4,800,000 Wesco Finl Corp. Com 950817 10 6 2,304,047 5,703,087 X 4, 3, 17 5,703,087 ----------- 17,523,163 ----------- GRAND TOTAL $66,461,224 ===========