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, 2013 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: 3555 Farnam Street 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: Senior Vice President Phone: 402-346-1400 Signature, Place, and Date of Signing: (s) Marc D. Hamburg Omaha, NE May 14, 2013 ------------------------ ------------------------ ------------------------ [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: 14 ---------- Form 13F Information Table Entry Total: 125 ---------- Form 13F Information Table Value Total: $85,001,344 ---------- (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. 28-2226 Berkshire Hathaway Homestate Insurance Company 2. 28-5678 Berkshire Hathaway Life Insurance Co. of Nebraska 3. 28-14389 BH Finance LLC 4. 28-554 Buffett, Warren E. 5. 28-1517 Columbia Insurance Co. 6. 28-06102 Cypress Insurance Company 7. 28-11217 Fechheimer Brothers Company 8. 28-852 GEICO Corp. 9. 28-12941 Medical Protective Corp. 10. 28-1066 National Fire & Marine 11. 28-718 National Indemnity Co. 12. 28-5006 National Liability & Fire Ins. Co. 13. 28-11222 Nebraska Furniture Mart 14. 28-12947 U.S. Investment Corp. Berkshire Hathaway Inc. Form 13F Information Table March 31, 2013 Voting Authority ----------------------- Market Shares Value or (In Principal Investment Other Name of Issuer Title of Class CUSIP Thousands) Amount Discretion Managers Sole Shared None AMERICAN COM 025816109 131,691 1,952,142 Shared-Defined 4 1,952,142 - - EXPRESS CO AMERICAN COM 025816109 1,162,025 17,225,400 Shared-Defined 4, 5 17,225,400 - - EXPRESS CO AMERICAN COM 025816109 56,655 839,832 Shared-Defined 4, 7 839,832 - - EXPRESS CO AMERICAN COM 025816109 131,082 1,943,100 Shared-Defined 4, 8, 11 1,943,100 - - EXPRESS CO AMERICAN COM 025816109 539,318 7,994,634 Shared-Defined 4, 10 7,994,634 - - EXPRESS CO AMERICAN COM 025816109 8,112,462 120,255,879 Shared-Defined 4, 11 120,255,879 - - EXPRESS CO AMERICAN COM 025816109 94,425 1,399,713 Shared-Defined 4, 13 1,399,713 - - EXPRESS CO BANK OF COM 064058100 225,076 8,041,300 Shared-Defined 4 8,041,300 - - NEW YORK MELLON CORP BANK OF COM 064058100 50,212 1,793,915 Shared-Defined 2, 4, 11 1,793,915 - - NEW YORK MELLON CORP BANK OF COM 064058100 241,027 8,611,200 Shared-Defined 4, 8, 11 8,611,200 - - NEW YORK MELLON CORP BANK OF COM 064058100 13,791 492,700 Shared-Defined 4, 11 492,700 - - NEW YORK MELLON CORP CHICAGO N Y REGISTRY SH 167250109 299,161 4,817,400 Shared-Defined 4 4,817,400 - - BRIDGE & IRON CO N V CHICAGO N Y REGISTRY SH 167250109 105,024 1,691,200 Shared-Defined 4, 8, 11 1,691,200 - - BRIDGE & IRON CO N V COCA COLA CO COM 191216100 32,352 800,000 Shared-Defined 4 800,000 - - COCA COLA CO COM 191216100 3,246,653 80,283,200 Shared-Defined 4, 5 80,283,200 - - COCA COLA CO COM 191216100 73,763 1,824,000 Shared-Defined 4, 6 1,824,000 - - COCA COLA CO COM 191216100 582,789 14,411,200 Shared-Defined 4, 8, 11 14,411,200 - - COCA COLA CO COM 191216100 739,178 18,278,400 Shared-Defined 4, 10 18,278,400 - - COCA COLA CO COM 191216100 11,318,800 279,891,200 Shared-Defined 4, 11 279,891,200 - - COCA COLA CO COM 191216100 143,643 3,552,000 Shared-Defined 4, 12 3,552,000 - - COCA COLA CO COM 191216100 38,822 960,000 Shared-Defined 4, 13 960,000 - - CONOCOPHILLIPS COM 20825C104 61,000 1,014,974 Shared-Defined 4, 8, 11 1,014,974 - - CONOCOPHILLIPS COM 20825C104 120,158 1,999,300 Shared-Defined 4, 10 1,999,300 - - CONOCOPHILLIPS COM 20825C104 1,268,689 21,109,637 Shared-Defined 4, 11 21,109,637 - - COSTCO WHSL COM 22160K105 459,813 4,333,363 Shared-Defined 4, 11 4,333,363 - - CORP NEW DAVITA COM 23918K108 1,064,216 8,973,906 Shared-Defined 4 8,973,906 - - HEALTHCARE PARTNERS I DAVITA COM 23918K108 711,540 6,000,000 Shared-Defined 4, 8, 11 6,000,000 - - HEALTHCARE PARTNERS I DEERE & CO COM 244199105 143,268 1,666,300 Shared-Defined 4 1,666,300 - - DEERE & CO COM 244199105 198,826 2,312,467 Shared-Defined 4, 8, 11 2,312,467 - - DIRECTV COM 25490A309 807,868 14,275,800 Shared-Defined 4 14,275,800 - - DIRECTV COM 25490A309 1,301,547 22,999,600 Shared-Defined 4, 8, 11 22,999,600 - - GANNETT INC COM 364730101 38,059 1,740,231 Shared-Defined 4, 11 1,740,231 - - GENERAL ELECTRIC CO COM 369604103 13,615 588,900 Shared-Defined 4 588,900 - - GENERAL MTRS CO COM 37045V100 417,300 15,000,000 Shared-Defined 4 15,000,000 - - GENERAL MTRS CO COM 37045V100 278,200 10,000,000 Shared-Defined 4, 8, 11 10,000,000 - - GLAXOSMITHKLINE PLC SPONSORED ADR 37733W105 70,858 1,510,500 Shared-Defined 4, 11 1,510,500 - - INTERNATIONAL BUSINESS COM 459200101 18,020 84,480 Shared-Defined 4 84,480 - - MACHS INTERNATIONAL BUSINESS COM 459200101 127,466 597,588 Shared-Defined 4, 5 597,588 - - MACHS INTERNATIONAL BUSINESS COM 459200101 101,275 474,800 Shared-Defined 4, 8, 11 474,800 - - MACHS INTERNATIONAL BUSINESS COM 459200101 14,283,659 66,965,116 Shared-Defined 4, 11 66,965,116 - - MACHS JOHNSON & JOHNSON COM 478160104 26,668 327,100 Shared-Defined 4 327,100 - - KRAFT FOODS GROUP INC COM 50076Q106 9,928 192,666 Shared-Defined 4 192,666 - - KRAFT FOODS GROUP INC COM 50076Q106 72,626 1,409,395 Shared-Defined 4, 8, 11 1,409,395 - - LEE ENTERPRISES INC COM 523768109 113 88,863 Shared-Defined 4, 5 88,863 - - LIBERTY MEDIA CORP DELAWARE CL A 531229102 292,732 2,622,340 Shared-Defined 4 2,622,340 - - LIBERTY MEDIA CORP DELAWARE CL A 531229102 334,890 3,000,000 Shared-Defined 4, 8, 11 3,000,000 - - M & T BK CORP COM 55261F104 56,325 546,000 Shared-Defined 4, 8, 11 546,000 - - M & T BK CORP COM 55261F104 17,000 164,795 Shared-Defined 4, 10 164,795 - - M & T BK CORP COM 55261F104 481,886 4,671,245 Shared-Defined 4, 11 4,671,245 - - MASTERCARD INC CL A 57636Q104 219,158 405,000 Shared-Defined 4, 8, 11 405,000 - - MEDIA GEN INC CL A 584404107 27,599 4,646,220 Shared-Defined 4 4,646,220 - - MONDELEZ INTL INC CL A 609207105 17,695 578,000 Shared-Defined 4 578,000 - - MONDELEZ INTL INC CL A 609207105 198,224 6,474,750 Shared-Defined 4, 8, 11 6,474,750 - - MOODYS CORP COM 615369105 838,158 15,719,400 Shared-Defined 4, 8, 11 15,719,400 - - MOODYS CORP COM 615369105 676,943 12,695,850 Shared-Defined 4, 11 12,695,850 - - NATIONAL OILWELL VARCO INC COM 637071101 298,317 4,216,500 Shared-Defined 4 4,216,500 - - NATIONAL OILWELL VARCO INC COM 637071101 231,197 3,267,800 Shared-Defined 4, 8, 11 3,267,800 - - PHILLIPS 66 COM 718546104 454,511 6,495,800 Shared-Defined 4 6,495,800 - - PHILLIPS 66 COM 718546104 637,682 9,113,650 Shared-Defined 4, 8, 11 9,113,650 - - PHILLIPS 66 COM 718546104 69,946 999,650 Shared-Defined 4, 10 999,650 - - PHILLIPS 66 COM 718546104 738,521 10,554,818 Shared-Defined 4, 11 10,554,818 - - PRECISION CASTPARTS CORP COM 740189105 224,649 1,184,735 Shared-Defined 4 1,184,735 - - PRECISION CASTPARTS CORP COM 740189105 150,293 792,601 Shared-Defined 4, 8, 11 792,601 - - PROCTER & GAMBLE CO COM 742718109 24,305 315,400 Shared-Defined 4 315,400 - - PROCTER & GAMBLE CO COM 742718109 1,562,777 20,280,000 Shared-Defined 4, 5 20,280,000 - - PROCTER & GAMBLE CO COM 742718109 120,214 1,560,000 Shared-Defined 4, 6 1,560,000 - - PROCTER & GAMBLE CO COM 742718109 480,854 6,240,000 Shared-Defined 4, 8, 11 6,240,000 - - PROCTER & GAMBLE CO COM 742718109 480,854 6,240,000 Shared-Defined 4, 10 6,240,000 - - PROCTER & GAMBLE CO COM 742718109 1,339,124 17,377,678 Shared-Defined 4, 11 17,377,678 - - PROCTER & GAMBLE CO COM 742718109 60,107 780,000 Shared-Defined 4, 12 780,000 - - SANOFI SPONSORED ADR 80105N105 24,953 488,500 Shared-Defined 4, 8, 11 488,500 - - SANOFI SPONSORED ADR 80105N105 26,038 509,742 Shared-Defined 4, 5, 9 509,742 - - SANOFI SPONSORED ADR 80105N105 8,648 169,300 Shared-Defined 4, 10 169,300 - - SANOFI SPONSORED ADR 80105N105 147,934 2,896,133 Shared-Defined 4, 11 2,896,133 - - STARZ LIBRTY CAP 85571Q102 58,085 2,622,340 Shared-Defined 4 2,622,340 - - COM A STARZ LIBRTY CAP 85571Q102 66,450 3,000,000 Shared-Defined 4, 8, 11 3,000,000 - - COM A TORCHMARK CORP COM 891027104 6,956 116,326 Shared-Defined 2, 4, 11 116,326 - - TORCHMARK CORP COM 891027104 40,341 674,592 Shared-Defined 4, 5 674,592 - - TORCHMARK CORP COM 891027104 57,381 959,550 Shared-Defined 4, 10 959,550 - - TORCHMARK CORP COM 891027104 148,624 2,485,350 Shared-Defined 4, 11 2,485,350 - - US BANCORP DEL COM NEW 902973304 20,028 590,275 Shared-Defined 4 590,275 - - US BANCORP DEL COM NEW 902973304 790,817 23,307,300 Shared-Defined 4, 5 23,307,300 - - US BANCORP DEL COM NEW 902973304 430,209 12,679,300 Shared-Defined 4, 8, 11 12,679,300 - - US BANCORP DEL COM NEW 902973304 73,764 2,174,000 Shared-Defined 4, 5, 9 2,174,000 - - US BANCORP DEL COM NEW 902973304 711,248 20,962,226 Shared-Defined 4, 11 20,962,226 - - US BANCORP DEL COM NEW 902973304 59,208 1,745,000 Shared-Defined 4, 14 1,745,000 - - U S G CORP COM NEW 903293405 451,389 17,072,192 Shared-Defined 4, 11 17,072,192 - - UNITED PARCEL SERVICE INC CL B 911312106 5,102 59,400 Shared-Defined 4 59,400 - - VERISIGN INC COM 92343E102 202,750 4,289,200 Shared-Defined 4 4,289,200 - - VERISIGN INC COM 92343E102 183,639 3,884,900 Shared-Defined 4, 8, 11 3,884,900 - - VERISK ANALYTICS INC CL A 92345Y106 96,339 1,563,434 Shared-Defined 4, 8, 11 1,563,434 - - VIACOM INC NEW CL B 92553P201 243,092 3,954,000 Shared-Defined 4 3,954,000 - - VIACOM INC NEW CL B 92553P201 224,599 3,653,200 Shared-Defined 4, 8, 11 3,653,200 - - VISA INC COM CL A 92826C839 264,179 1,555,459 Shared-Defined 4, 8, 11 1,555,459 - - WABCO HLDGS INC COM 92927K102 171,790 2,433,632 Shared-Defined 4 2,433,632 - - WABCO HLDGS INC COM 92927K102 115,958 1,642,693 Shared-Defined 4, 8, 11 1,642,693 - - WAL MART STORES INC COM 931142103 21,701 290,000 Shared-Defined 4 290,000 - - WAL MART STORES INC COM 931142103 12,721 170,000 Shared-Defined 1, 2, 4, 170,000 - - 11 WAL MART STORES INC COM 931142103 2,207 29,500 Shared-Defined 2, 4, 11 29,500 - - WAL MART STORES INC COM 931142103 314,286 4,200,000 Shared-Defined 3, 4, 5 4,200,000 - - WAL MART STORES INC COM 931142103 114,777 1,533,840 Shared-Defined 4, 5 1,533,840 - - WAL MART STORES INC COM 931142103 19,156 256,000 Shared-Defined 4, 6 256,000 - - WAL MART STORES INC COM 931142103 70,789 946,000 Shared-Defined 4, 8, 11 946,000 - - WAL MART STORES INC COM 931142103 133,871 1,789,000 Shared-Defined 4, 5, 9 1,789,000 - - WAL MART STORES INC COM 931142103 63,531 849,000 Shared-Defined 4, 10 849,000 - - WAL MART STORES INC COM 931142103 2,893,893 38,672,895 Shared-Defined 4, 11 38,672,895 - - WAL MART STORES INC COM 931142103 38,238 511,000 Shared-Defined 4, 14 511,000 - - WASHINGTON POST CO CL B 939640108 66,295 148,311 Shared-Defined 1, 2, 4, - - 148,311 11 WASHINGTON POST CO CL B 939640108 289,730 648,165 Shared-Defined 4, 10 - - 648,165 WASHINGTON POST CO CL B 939640108 399,754 894,304 Shared-Defined 4, 11 - - 894,304 WASHINGTON POST CO CL B 939640108 16,532 36,985 Shared-Defined 4, 12 - - 36,985 WELLS FARGO & CO NEW COM 949746101 247,813 6,699,470 Shared-Defined 4 6,699,470 - - WELLS FARGO & CO NEW COM 949746101 591,840 16,000,000 Shared-Defined 1, 2, 4, 16,000,000 - - 11 WELLS FARGO & CO NEW COM 949746101 196,176 5,303,500 Shared-Defined 2, 4, 11 5,303,500 - - WELLS FARGO & CO NEW COM 949746101 252,008 6,812,857 Shared-Defined 3, 4, 5 6,812,857 - - WELLS FARGO & CO NEW COM 949746101 2,750,540 74,359,019 Shared-Defined 4, 5 74,359,019 - - WELLS FARGO & CO NEW COM 949746101 30,332 820,000 Shared-Defined 4, 6 820,000 - - WELLS FARGO & CO NEW COM 949746101 62,883 1,700,000 Shared-Defined 4, 7 1,700,000 - - WELLS FARGO & CO NEW COM 949746101 1,334,200 36,069,200 Shared-Defined 4, 8, 11 36,069,200 - - WELLS FARGO & CO NEW COM 949746101 379,776 10,267,000 Shared-Defined 4, 5, 9 10,267,000 - - WELLS FARGO & CO NEW COM 949746101 2,072,116 56,018,270 Shared-Defined 4, 10 56,018,270 - - WELLS FARGO & CO NEW COM 949746101 8,793,384 237,723,287 Shared-Defined 4, 11 237,723,287 - - WELLS FARGO & CO NEW COM 949746101 103,128 2,788,000 Shared-Defined 4, 12 2,788,000 - - WELLS FARGO & CO NEW COM 949746101 59,544 1,609,720 Shared-Defined 4, 13 1,609,720 - - WELLS FARGO & CO NEW COM 949746101 73,980 2,000,000 Shared-Defined 4, 14 2,000,000 - - Total 85,001,344