1. In the asset section of the company's March 31, 2018, balance sheet, there as an investments in equity securities account shown under the Insurance and Other segment. How is this amount determined? 2.Does the company have more investments in equity securities than just those listed for the Insurance and Other segment? Where are they on the balance sheet? How do you know?

3.During the quarter ended March 31, 2018, did the company sell any of its investments in equity securities? If they did, were these securities sold at a net gain or loss? How would the gain or loss be determined? 4. During the quarter ended March 31, 2018, did the company purchase any additional stocks that it included in the investments in equity securities asset account? How do you know? 5.For the investments in equity securities held as of March 31, 2018, have they increased or decreased in value since they were originally purchased? By how much? During Q1 (Jan 1 - March 31) did the portfolio of equity securities increase or decrease in value? By how much?

Attached are the required details .

March 31, 2018 (Unaudited) December 31, 2017 $ 50,559 48,040 19920 166,658 25,460 78,515 21353 164.026 ASSETS Insurance and Other: Cash and cash equivalents Short-term investments in U.S. Treasury Bills Investments in fixed maturity securities Investments in equity Becurities Investment in The Kraft Heinz Company (Far Value: 2018-$20,272: 2017- $25,306) Receivables Inventories Property, plant and equipment Goodwill Other intangible assets Deferred charges under retroactive reinsurance contracts Other 17,687 30.906 16.244 25,807 55.079 32,260 15,007 17.535 28,578 16,187 20,104 54.985 32.513 15,278 11939 11.133 488.106 485,797 Ratiroad, Utilities and Energy Cash and cash equivalents Property, plant and equipment Goodwill Regulatory assets Other 9.550 128,385 24.766 2987 15,394 2.910 128.184 24.780 2.930 15,589 175,082 174.413 Finance and Financial Products: Cash and cash equivalents Short-term investments in U.S. Treasury Bills Loans and finance receivables Property, plant and equipment and assets held for lease Goodwill Other 3,772 2,641 13.845 9.920 1,492 7,793 3,213 5.356 13.748 9,931 1,493 39,463 41.385 702,095 $ 702,651 $ LIABILITIES AND SHAREHOLDERS' EQUITY Insurance and Other Unpaid losses and loss adjustment expenses Unpaid losses and loss adjustment expenses inder retroactive reincurance contracts Uneamed premium Life, amuity and health insurance benefits Other policyholder liabilities Accounts payable, accruals and other liabilities Notes payable and other borrowings $ 62,094 42,344 18,448 17,935 7.864 25,782 25,663 $ 61,122 42937 16.040 17,608 7,654 23,099 27.324 200,130 195,784 Railroad, Utilities and Energy Accounts payable, accruals and other liabilities Regulatory liabilities Notez payable and other borrowings 10,786 7,599 62,667 11,334 7,511 62,178 31,052 81,023 Finance and Financid Products: Accounts payable, accruals and other liabilities Derivative contract liabilities Notes payable and other bcurowings 1.566 2,378 10,755 1,470 2.172 13,085 14,699 16,727 Income taxes, principally deferred 55,718 56,607 Total liabilities 351,599 350,141 Shareholders' equity: Common stock Capital in excess of par value Accuraulated other comprehensive income Retained earings Treasury stock, at cost 35,681 (2,477) 315,932 (1,763) 35,694 58,571 255,786 (1,763) Berkshire Hathaway shareholders' equity Non-controlling interests 348,296 3,658 347,401 3,651 351,052 Total shareholders' equity 351,954 CONSOLIDATED STATEMENTS OF EARNINGS (dollars in millions except per share now First Quarter 2013 - 2017 (Unaudited) Revenues: Insurance and Other: Insurance premiums earned Sales and service revenues Interest, dividend and other mvestment income $ 13373 31623 1,315 $ 21,753 30229 1,162 46,311 53,144 Railroad, Ufilities and Energy operating and other revenues 10,102 9,378 Page 5 UVA C-2416 Finance and Financial Products Sales and service revenues Interest, dividend and other investment income 1,693 367 1,498 350 2,060 1,848 Total reventes 58,473 64,370 2 Investment and derivative contract gains/losses: Investments gains (Losses) Derivative contruct gains Losses) (7,809) (206) (8015) Costs and expenses: Insurance and Other Insurance losses and loss adjustment expenses Life, arinuity and health insurance benefits Insurance underwriting expenses Cost of sales and services Selling, general and administrative expenses Interest expense 8,963 1,287 2,604 25.415 4,024 390 18,566 1.227 2.339 24 360 4,116 270 42,683 50,878 Railroad, Utilines and Energe: Cost of sales and operating expenses Interest expense 7,401 710 6,754 693 8,1117 ,447 Finance and Financial Products: Cost of sales and services Sellus, general and administrative expenses Interest expense 1,029 467 867 442 104 92 1,588 1,413 Total costs and expenses 52,382 59.738 5.407 Earnings (Loss) before income taxes and equity method earnings Equity method eamings (1.924) 401 281 Earnings (loss) before income taxes Income tax expense (benefit) (1,523) (452) 5,688 1.549 Net earnings (less) Earnings attributable to non-controlling interests (1,071) 4,139 Net earnings (less) attributable to Berkshire Hathaway shareholders S (1,139) $ 4,060 Net earnings (less) per average equivalent Class A share S (692) $ 2,469 Net earnings (less) per average equivalent Class B share $ (0.46 $ 1.65 Average equivalent Class A shares outstanding 1,644,958 1,644,425 Average equivalent Class B shares outstanding 2.467 436,888 2.466,656.938 * Net earnings (loss) per average equivalent Claes B share outstanding are one-fifteen-undresih of the equivalent Class amo. First quarter 2018 2017 (Unaudited) $(1,071) $4,139 Net carnings (loss) Other comprehensive income: Net change in unrealized appreciation of investments Applicable income taxes Reclassification of investment appreciation in net eamings Applicable income taxes Foreign currency translation Applicable income taxes Prior service cost and actuarial gaine/losses of defined benefit pension plans Applicable income taxes Other, net (45) (2) (221) 46 601 (6) (24) 17 8,377 (2,872) (305) 107 558 (69) (10) Other comprehensive income, net 335 5,7% Comprehensive income Comprehcasive Income attributable to non-controlling interests (136) 75 9,935 103 Comprehensive income attributable to Berkshire Hathaway shareholders $ (811) $9852 March 31, 2018 (Unaudited) December 31, 2017 $ 50,559 48,040 19920 166,658 25,460 78,515 21353 164.026 ASSETS Insurance and Other: Cash and cash equivalents Short-term investments in U.S. Treasury Bills Investments in fixed maturity securities Investments in equity Becurities Investment in The Kraft Heinz Company (Far Value: 2018-$20,272: 2017- $25,306) Receivables Inventories Property, plant and equipment Goodwill Other intangible assets Deferred charges under retroactive reinsurance contracts Other 17,687 30.906 16.244 25,807 55.079 32,260 15,007 17.535 28,578 16,187 20,104 54.985 32.513 15,278 11939 11.133 488.106 485,797 Ratiroad, Utilities and Energy Cash and cash equivalents Property, plant and equipment Goodwill Regulatory assets Other 9.550 128,385 24.766 2987 15,394 2.910 128.184 24.780 2.930 15,589 175,082 174.413 Finance and Financial Products: Cash and cash equivalents Short-term investments in U.S. Treasury Bills Loans and finance receivables Property, plant and equipment and assets held for lease Goodwill Other 3,772 2,641 13.845 9.920 1,492 7,793 3,213 5.356 13.748 9,931 1,493 39,463 41.385 702,095 $ 702,651 $ LIABILITIES AND SHAREHOLDERS' EQUITY Insurance and Other Unpaid losses and loss adjustment expenses Unpaid losses and loss adjustment expenses inder retroactive reincurance contracts Uneamed premium Life, amuity and health insurance benefits Other policyholder liabilities Accounts payable, accruals and other liabilities Notes payable and other borrowings $ 62,094 42,344 18,448 17,935 7.864 25,782 25,663 $ 61,122 42937 16.040 17,608 7,654 23,099 27.324 200,130 195,784 Railroad, Utilities and Energy Accounts payable, accruals and other liabilities Regulatory liabilities Notez payable and other borrowings 10,786 7,599 62,667 11,334 7,511 62,178 31,052 81,023 Finance and Financid Products: Accounts payable, accruals and other liabilities Derivative contract liabilities Notes payable and other bcurowings 1.566 2,378 10,755 1,470 2.172 13,085 14,699 16,727 Income taxes, principally deferred 55,718 56,607 Total liabilities 351,599 350,141 Shareholders' equity: Common stock Capital in excess of par value Accuraulated other comprehensive income Retained earings Treasury stock, at cost 35,681 (2,477) 315,932 (1,763) 35,694 58,571 255,786 (1,763) Berkshire Hathaway shareholders' equity Non-controlling interests 348,296 3,658 347,401 3,651 351,052 Total shareholders' equity 351,954 CONSOLIDATED STATEMENTS OF EARNINGS (dollars in millions except per share now First Quarter 2013 - 2017 (Unaudited) Revenues: Insurance and Other: Insurance premiums earned Sales and service revenues Interest, dividend and other mvestment income $ 13373 31623 1,315 $ 21,753 30229 1,162 46,311 53,144 Railroad, Ufilities and Energy operating and other revenues 10,102 9,378 Page 5 UVA C-2416 Finance and Financial Products Sales and service revenues Interest, dividend and other investment income 1,693 367 1,498 350 2,060 1,848 Total reventes 58,473 64,370 2 Investment and derivative contract gains/losses: Investments gains (Losses) Derivative contruct gains Losses) (7,809) (206) (8015) Costs and expenses: Insurance and Other Insurance losses and loss adjustment expenses Life, arinuity and health insurance benefits Insurance underwriting expenses Cost of sales and services Selling, general and administrative expenses Interest expense 8,963 1,287 2,604 25.415 4,024 390 18,566 1.227 2.339 24 360 4,116 270 42,683 50,878 Railroad, Utilines and Energe: Cost of sales and operating expenses Interest expense 7,401 710 6,754 693 8,1117 ,447 Finance and Financial Products: Cost of sales and services Sellus, general and administrative expenses Interest expense 1,029 467 867 442 104 92 1,588 1,413 Total costs and expenses 52,382 59.738 5.407 Earnings (Loss) before income taxes and equity method earnings Equity method eamings (1.924) 401 281 Earnings (loss) before income taxes Income tax expense (benefit) (1,523) (452) 5,688 1.549 Net earnings (less) Earnings attributable to non-controlling interests (1,071) 4,139 Net earnings (less) attributable to Berkshire Hathaway shareholders S (1,139) $ 4,060 Net earnings (less) per average equivalent Class A share S (692) $ 2,469 Net earnings (less) per average equivalent Class B share $ (0.46 $ 1.65 Average equivalent Class A shares outstanding 1,644,958 1,644,425 Average equivalent Class B shares outstanding 2.467 436,888 2.466,656.938 * Net earnings (loss) per average equivalent Claes B share outstanding are one-fifteen-undresih of the equivalent Class amo. First quarter 2018 2017 (Unaudited) $(1,071) $4,139 Net carnings (loss) Other comprehensive income: Net change in unrealized appreciation of investments Applicable income taxes Reclassification of investment appreciation in net eamings Applicable income taxes Foreign currency translation Applicable income taxes Prior service cost and actuarial gaine/losses of defined benefit pension plans Applicable income taxes Other, net (45) (2) (221) 46 601 (6) (24) 17 8,377 (2,872) (305) 107 558 (69) (10) Other comprehensive income, net 335 5,7% Comprehensive income Comprehcasive Income attributable to non-controlling interests (136) 75 9,935 103 Comprehensive income attributable to Berkshire Hathaway shareholders $ (811) $9852