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In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"kind","element":"transactionCoding","label":"F6","text":"Distribution to trust beneficiaries for no consideration."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Not applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F7","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":4,"derivative":{"underlying":"See Footnote (4)"},"source":{"system":"sec-edgar","filing":"0001209191-23-053898","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919123053898/doc4.xml","form_type":"4"}},{"id":51774,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common","published_at":"2023-10-31T00:33:16.000Z","date":"2023-05-17","kind":"exercise","planned":false,"acquired":false,"shares":1,"ownership":{"direct":false,"nature":"By Olson 2012 Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"kind","element":"transactionCoding","label":"F4","text":"Conversion of one share of Class A Common Stock into 1,500 shares of Class B Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Not applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F7","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":28,"derivative":{"underlying":"See Footnote (4)"},"source":{"system":"sec-edgar","filing":"0001209191-23-053898","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919123053898/doc4.xml","form_type":"4"}},{"id":51773,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2023-10-31T00:33:16.000Z","date":"2013-05-19","kind":"other","planned":false,"acquired":false,"shares":781,"ownership":{"direct":false,"nature":"By Olson 2012 trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Distribution to trust beneficiaries for no consideration."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Not applicable."}],"balance_after":454,"source":{"system":"sec-edgar","filing":"0001209191-23-053898","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919123053898/doc4.xml","form_type":"4"}},{"id":51772,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2023-10-31T00:33:16.000Z","date":"2023-05-18","kind":"other","planned":false,"acquired":false,"shares":1562,"ownership":{"direct":false,"nature":"By Olson 2012 Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Distribution to trust beneficiaries for no consideration."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Not applicable."}],"balance_after":1235,"source":{"system":"sec-edgar","filing":"0001209191-23-053898","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919123053898/doc4.xml","form_type":"4"}},{"id":51771,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2023-10-31T00:33:16.000Z","date":"2023-05-17","kind":"exercise","planned":false,"acquired":true,"shares":1500,"ownership":{"direct":false,"nature":"By Olson 2012 Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"Conversion of one share of Class A Common Stock into 1,500 shares of Class B Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Not applicable."}],"balance_after":2797,"source":{"system":"sec-edgar","filing":"0001209191-23-053898","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919123053898/doc4.xml","form_type":"4"}},{"id":2047638,"issuer":{"id":8876,"kind":"organization","name":"WESTERN ASSET PREMIER BOND FUND"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-01-24T21:26:05.000Z","date":"2023-01-20","kind":"sale","acquired":false,"shares":18000,"price":11.2,"value":201600.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction reported herein may be deemed to be matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended, against the acquisition of the Fund's common stock previously reported by the Reporting Person on December 23, 2022. The Fund discovered the potential matchable transactions and has requested that the Reporting Person agree to disgorge any profits deemed realized from such transactions. The Reporting Person has agreed to voluntarily disgorge to the Fund the full amount of the profit realized from such transactions, which amounted to less than $100."}],"balance_after":2000,"source":{"system":"sec-edgar","filing":"0000914851-23-000011","document":"wf-form4_167459554794743.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1163792/000091485123000011/wf-form4_167459554794743.xml","form_type":"4"}},{"id":2076215,"issuer":{"id":8876,"kind":"organization","name":"WESTERN ASSET PREMIER BOND FUND"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-12-27T14:38:26.000Z","date":"2022-12-23","kind":"purchase","acquired":true,"shares":20000,"price":11.1949,"value":223898.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average.  These shares were purchased in multiple transactions ranging from $11.1306 to $11.2018 inclusive.  Mr. Olson undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission upon request full information regarding the number of shares purchased at each separate price within the range set forth above."}],"balance_after":20000,"source":{"system":"sec-edgar","filing":"0000914851-22-000101","document":"wf-form4_167215189086429.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1163792/000091485122000101/wf-form4_167215189086429.xml","form_type":"4"}},{"id":64899,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common 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In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F5","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":29,"derivative":{"underlying":"See footnote"},"source":{"system":"sec-edgar","filing":"0001209191-18-016062","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919118016062/doc4.xml","form_type":"4"}},{"id":131335,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2018-03-03T01:07:24.000Z","date":"2018-02-28","kind":"exercise","acquired":false,"shares":2,"ownership":{"direct":false,"nature":"By Olson 2012 Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Not applicable"},{"field":"date","element":"transactionDate","label":"F2","text":"On February 28, 2018, I converted 2 shares of Class A Common Stock into 3,000 shares of Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"On February 28, 2018, I converted 2 shares of Class A Common Stock into 3,000 shares of Class B Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Not applicable"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not applicable"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not applicable"},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F5","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F5","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":50,"derivative":{"underlying":"See footnote"},"source":{"system":"sec-edgar","filing":"0001209191-18-016062","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919118016062/doc4.xml","form_type":"4"}},{"id":131334,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-03T01:07:24.000Z","date":"2018-03-02","kind":"gift","acquired":false,"shares":2103,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Olson 2012 Trust"},"footnotes":[{"field":"date","element":"transactionDate","label":"F3","text":"The reported transaction was a gift to certain individuals."},{"field":"shares","element":"transactionShares","label":"F3","text":"The reported transaction was a gift to certain individuals."}],"balance_after":1297,"source":{"system":"sec-edgar","filing":"0001209191-18-016062","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919118016062/doc4.xml","form_type":"4"}},{"id":131333,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-03T01:07:24.000Z","date":"2018-02-28","kind":"exercise","acquired":true,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Olson 2012 Trust"},"footnotes":[{"field":"date","element":"transactionDate","label":"F2","text":"On February 28, 2018, I converted 2 shares of Class A Common Stock into 3,000 shares of Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"On February 28, 2018, I converted 2 shares of Class A Common Stock into 3,000 shares of Class B Common Stock."}],"balance_after":3400,"source":{"system":"sec-edgar","filing":"0001209191-18-016062","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919118016062/doc4.xml","form_type":"4"}},{"id":154724,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2016-03-17T00:57:46.000Z","date":"2016-03-11","kind":"purchase","acquired":true,"shares":10,"price":210543.085,"value":2105430.85,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable"},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":102,"derivative":{"underlying":"See footnote (1)"},"source":{"system":"sec-edgar","filing":"0001209191-16-108980","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000120919116108980/doc4.xml","form_type":"4"}},{"id":168235,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2014-12-22T23:59:31.000Z","date":"2014-12-19","kind":"sale","acquired":false,"shares":65,"price":152.07,"value":9884.55,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Class B Common Stocks were sold at the fixed price of $152.07 per share with net proceeds totalling $9,859.34."}],"balance_after":2435,"source":{"system":"sec-edgar","filing":"0001181431-14-039472","document":"rrd420655.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143114039472/rrd420655.xml","form_type":"4"}},{"id":188444,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2013-01-10T00:03:20.000Z","date":"2012-12-28","kind":"gift","acquired":false,"shares":52,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 5, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"shares","element":"transactionShares","label":"F3","text":"On December 28, 2012, the Reporting Person made a gift of 52 shares of Class A Common Stock to a family trust."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Not applicable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 5, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":88,"derivative":{"underlying":"See footnote 2"},"source":{"system":"sec-edgar","filing":"0001181431-13-002717","document":"rrd366485.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143113002717/rrd366485.xml","form_type":"5"}},{"id":188443,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2013-01-10T00:03:20.000Z","date":"2012-12-28","kind":"gift","acquired":false,"shares":400,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On December 28, 2012, the Reporting Person made a gift of 400 shares of Class B Common Stock to a family trust."}],"balance_after":14600,"source":{"system":"sec-edgar","filing":"0001181431-13-002717","document":"rrd366485.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143113002717/rrd366485.xml","form_type":"5"}},{"id":188829,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2012-12-21T00:22:55.000Z","date":"2012-12-18","kind":"purchase","acquired":true,"shares":10,"price":135000,"value":1350000.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":140,"derivative":{"underlying":"See footnote 3"},"source":{"system":"sec-edgar","filing":"0001181431-12-066401","document":"rrd364227.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112066401/rrd364227.xml","form_type":"4"}},{"id":188828,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2012-12-21T00:22:55.000Z","date":"2012-12-18","kind":"purchase","acquired":true,"shares":1500,"price":89.997,"value":134995.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were purchased in multiple transactions at prices ranging from $89.9925 to $90.00."}],"balance_after":2500,"source":{"system":"sec-edgar","filing":"0001181431-12-066401","document":"rrd364227.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112066401/rrd364227.xml","form_type":"4"}},{"id":188827,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2012-12-21T00:22:55.000Z","date":"2012-12-18","kind":"purchase","acquired":true,"shares":1000,"price":90.0047,"value":90004.7,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price.  These shares were purchased in multiple transactions at prices ranging from $90.00 to $90.0067.  The reporting person undertakes to provide to Berkshire Hathaway Inc. (\"Berkshire\"), any security holder of Berkshire, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 1 and 2 to this Form 4."}],"balance_after":1000,"source":{"system":"sec-edgar","filing":"0001181431-12-066401","document":"rrd364227.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112066401/rrd364227.xml","form_type":"4"}},{"id":195019,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2012-03-07T02:38:23.000Z","date":"2012-03-05","kind":"purchase","acquired":true,"shares":4,"price":117650,"value":470600.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":130,"derivative":{"underlying":"See footnote 1"},"source":{"system":"sec-edgar","filing":"0001181431-12-015000","document":"rrd337310.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112015000/rrd337310.xml","form_type":"4"}},{"id":195018,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2012-03-07T02:38:23.000Z","date":"2012-03-05","kind":"purchase","acquired":true,"shares":4,"price":117640,"value":470560.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":126,"derivative":{"underlying":"See footnote 1"},"source":{"system":"sec-edgar","filing":"0001181431-12-015000","document":"rrd337310.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112015000/rrd337310.xml","form_type":"4"}},{"id":195017,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2012-03-07T02:38:23.000Z","date":"2012-03-05","kind":"purchase","acquired":true,"shares":1,"price":117582,"value":117582.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":122,"derivative":{"underlying":"See footnote 1"},"source":{"system":"sec-edgar","filing":"0001181431-12-015000","document":"rrd337310.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112015000/rrd337310.xml","form_type":"4"}},{"id":195016,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2012-03-07T02:38:23.000Z","date":"2012-03-05","kind":"purchase","acquired":true,"shares":1,"price":117580,"value":117580.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":121,"derivative":{"underlying":"See footnote 1"},"source":{"system":"sec-edgar","filing":"0001181431-12-015000","document":"rrd337310.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143112015000/rrd337310.xml","form_type":"4"}},{"id":206520,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2011-03-03T00:39:16.000Z","date":"2011-02-28","kind":"purchase","acquired":true,"shares":10,"price":129793.2,"value":1297932.0,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust."},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder in 30 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder in 30 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":120,"derivative":{"underlying":"See footnote 2"},"source":{"system":"sec-edgar","filing":"0001181431-11-014812","document":"rrd303308.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143111014812/rrd303308.xml","form_type":"4"}},{"id":224027,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2009-07-01T16:50:21.000Z","date":"2009-06-29","kind":"purchase","acquired":true,"shares":10,"price":87000,"value":870000.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":20,"derivative":{"underlying":"See Footnote 1"},"source":{"system":"sec-edgar","filing":"0001181431-09-033014","document":"rrd247218.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143109033014/rrd247218.xml","form_type":"4"}},{"id":228102,"issuer":{"id":2792,"kind":"organization","name":"BERKSHIRE HATHAWAY INC","symbol":"BRK.A"},"owners":[{"id":11464,"kind":"person","name":"OLSON RONALD L","position":1,"cik":"0001192668","reported_name":"OLSON RONALD L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2008-11-25T00:12:01.000Z","date":"2008-11-20","kind":"purchase","acquired":true,"shares":15,"price":81026.67,"value":1215400.05,"ownership":{"direct":false,"nature":"By Ronald & Jane Olson Living Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class A Common stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Not applicable."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Not applicable."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Each share of Class A Common stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock.  In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II."}],"balance_after":110,"derivative":{"underlying":"See Footnote 1"},"source":{"system":"sec-edgar","filing":"0001181431-08-063832","document":"rrd224450.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1067983/000118143108063832/rrd224450.xml","form_type":"4"}}]}