DVA

SEC source: 0001181431-12-056405 · rrd359062.xml · nonDerivative · entry 5

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 11,055,631

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.47 to $112.46.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 5,059,731 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (862,162); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-056405 · rrd359062.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,996,077

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $112.84 to $113.00.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 5,059,731 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (862,162); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-056405 · rrd359062.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,978,307

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.84 to $112.83.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 5,059,731 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (862,162); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-056405 · rrd359062.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,907,207

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $112.56 to $113.00.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 5,059,731 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (862,162); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-056405 · rrd359062.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,901,161

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.56 to $112.55. The reporting person undertakes to provide to DaVita Inc. ("DaVita"), any security holder of DaVita, 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 1-6 to this Form 4.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 5,059,731 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (862,162); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055676 · rrd358796.xml · nonDerivative · entry 6

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,804,981

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $112.12 to $112.84.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 4,804,981 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (607,412); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055676 · rrd358796.xml · nonDerivative · entry 5

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,789,881

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.12 to $112.09.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 4,804,981 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (607,412); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055676 · rrd358796.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,773,418

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.12 to $111.11.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 4,804,981 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (607,412); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055676 · rrd358796.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,705,391

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.64 to $112.48.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 4,804,981 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (607,412); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055676 · rrd358796.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,699,191

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.63 to $111.60.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 4,804,981 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (607,412); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055676 · rrd358796.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 7 and 8.

Disclosed balance after: 10,633,981

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.67 to $111.55. The reporting person undertakes to provide to DaVita Inc. ("DaVita"), any security holder of DaVita, 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 1-6 to this Form 4.

F7 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: 4,804,981 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (607,412); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055125 · rrd358446.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 4 and 5.

Disclosed balance after: 10,547,040

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.70 to $110.00.

F4 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F5 · ownership.nature: 4,547,040 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (349,471); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055125 · rrd358446.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 4 and 5.

Disclosed balance after: 10,545,240

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.89 to $109.99.

F4 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F5 · ownership.nature: 4,547,040 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (349,471); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-055125 · rrd358446.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 4 and 5.

Disclosed balance after: 10,539,935

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.88 to $109.87. The reporting person undertakes to provide to DaVita Inc. ("DaVita"), any security holder of DaVita, 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 1-3 to this Form 4.

F4 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F5 · ownership.nature: 4,547,040 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (349,471); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 7

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,483,112

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.87 to $110.00.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 6

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,481,612

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.19 to $111.22.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 5

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,480,812

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.19 to $111.18.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,460,612

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.19 to $110.18.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,396,194

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.75 to $110.35.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,367,694

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.75 to $109.74.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054646 · rrd358205.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,267,392

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.68 to $108.61. The reporting person undertakes to provide to DaVita Inc. ("DaVita"), any security holder of DaVita, 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 1-7 to this Form 4.

F8 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,483,112 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (285,543); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054525 · rrd358168.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 3 and 4.

Disclosed balance after: 10,265,515

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.06 to $108.37.

F3 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F4 · ownership.nature: 4,265,515 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (67,946); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-054525 · rrd358168.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 3 and 4.

Disclosed balance after: 10,254,615

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.06 to $108.05. The reporting person undertakes to provide to DaVita Inc. ("DaVita"), any security holder of DaVita, 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.

F3 · ownership.nature: 6,000,000 of the total reported securities are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F4 · ownership.nature: 4,265,515 of the total reported securities are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), Scott Fetzer Collective Investment Trust (187,000), and BNSF Master Retirement Trust (67,946); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 7

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,197,569

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $103.70 to $103.76.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 6

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,192,699

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $102.70 to $103.69.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 5

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,129,069

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $101.70 to $102.69.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,099,769

F4 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $101.90 to $102.58.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,035,591

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $100.90 to $101.89.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,010,918

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $101.42 to $101.76.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.

SEC source: 0001181431-12-052344 · rrd357100.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes 8 and 9.

Disclosed balance after: 10,002,819

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $100.42 to $101.41. The reporting person undertakes to provide to DaVita Inc. ("DaVita"), any security holder of DaVita, 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 1-7 to this Form 4.

F8 · ownership.nature: 6,000,000 of the total reported securities as of September 28, 2012, are owned by the following subsidiaries of Berkshire Hathaway Inc. ("Berkshire"): Government Employees Insurance Company ("Government Employees") (3,739,467) and GEICO Indemnity Company ("GEICO") (2,260,533). As Berkshire is in the chain of ownership of these subsidiaries, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each such subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

F9 · ownership.nature: 4,197,569 of the total reported securities as of September 28, 2012, are owned by the following pension plans of Berkshire's subsidiaries: Acme Brick Company Pension Trust (175,000), The Buffalo News Office Pension Plan (65,000), The Buffalo News Mechanical Pension Plan (16,000), The Buffalo News Drivers/Distributors Pension Plan (7,000), The Buffalo News Editorial Pension Plan (105,000), Dexter Pension Plan (90,000), Flightsafety International Inc. Retirement Income Plan (300,000), Fruit of the Loom Pension Trust (670,000), GEICO Corporation Pension Plan Trust (1,303,769), Johns Manville Corporation Master Pension Trust (1,182,800), Justin Brands, Inc. Union Pension Plan & Justin Brands, Inc. Pension & Trust (96,000), and Scott Fetzer Company Collective Investment Trust (187,000); each of Berkshire, Mr. Buffett and these pension plans disclaims beneficial ownership in such shares.