13D Filing: Berkshire Hathaway and Davita Inc. (DVA)

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The principal office of GEICO Choice is 5260 Western Avenue, Chevy Chase, MD 20815. The executive officers of GEICO Choice are Olza M. Nicely, Chairman of the Board and CEO, William E. Roberts,
President and COO, Stephen G. Kalinsky, Executive Vice President, Hollis A. White, Treasurer, James F. Nayden Jr., Vice President General Counsel, and Stephen C. Parsons, Vice President. The directors of GEICO Choice are Shawn A. Burklin,
Seth M. Ingall, Stephen G. Kalinsky, Robert M. Miller, Olza M. Nicely, Nancy L. Pierce, William E. Roberts, James F. Nayden, Stephen C. Parsons and Daniel J. Jaksich.

(7) GEICO Indemnity Insurance Company

GEICO Indemnity Insurance Company, a Maryland corporation (GEICO Indemnity), is a property and casualty insurance company. The
principal office of GEICO Indemnity is 5260 Western Avenue, Chevy Chase, MD 20815. The executive officers of GEICO Indemnity are Olza M. Nicely, Chairman of the Board and CEO, William E. Roberts, President and COO, Stephen G. Kalinsky, Executive
Vice President, Hollis A. White, Treasurer, James F. Nayden Jr., Vice President General Counsel, and Stephen C. Parsons, Vice President. The directors of GEICO Indemnity are Shawn A. Burklin, Seth M. Ingall, Stephen G. Kalinsky, Robert M.
Miller, Olza M. Nicely, Nancy L. Pierce, William E. Roberts, James F. Nayden, and Stephen C. Parsons.

(8) GEICO Secure Insurance
Company

GEICO Secure Insurance Company, a Nebraska corporation (GEICO Secure), is a property and casualty insurance
company. The principal office of GEICO Secure is 5260 Western Avenue, Chevy Chase, MD 20815. The executive officers of GEICO Secure are Olza M. Nicely, Chairman of the Board and CEO, William E. Roberts, President and COO, Stephen G. Kalinsky,
Executive Vice President, Hollis A. White, Treasurer, James F. Nayden Jr., Vice President General Counsel, and Stephen C. Parsons, Vice President. The directors of GEICO Secure are Shawn A. Burklin, Seth M. Ingall, Stephen G. Kalinsky, Robert
M. Miller, Olza M. Nicely, Nancy L. Pierce, William E. Roberts, James F. Nayden, Stephen C. Parsons and Daniel J. Jaksich.

Name

Principal Occupation

Business Address

Howard G. Buffett President of Buffett Farms 407 Southmoreland Place, Decatur, Illinois 62521
Warren E. Buffett Chairman and Chief Executive Officer of Berkshire 3555 Farnam Street, Omaha, NE 68131
Stephen B. Burke CEO of NBC Universal, a media and entertainment company 30 Rockefeller Plaza, New York, NY 10112
Shawn A. Burklin Senior Vice President GEICO 5260 Western Avenue, Chevy Chase, MD 20815
Susan L. Decker CEO of Raftr,a digital media product 2700 Pierce Street, San Francisco, CA 94123
Scott R. Doerr Senior Vice President of NICO 1314 Douglas Street, Omaha, NE 68102
William H. Gates Co-Chair of the Bill and Melinda Gates Foundation 4110 Carillon Point, Kirkland, WA 98033
Dale Geistkemper Treasurer of National Indemnity Company 1314 Douglas Street, Omaha, NE 68102
David S. Gottesman Senior Managing Director of First Manhattan Company, an investment advisory firm 309 Park Avenue, New York, NY 10022
J. Michael Gottschalk Vice President of NICO 1314 Douglas Street, Omaha, NE 68102
Charlotte Guyman Former general manager with Microsoft Corporation 1127 Evergreen Point Road, Medina, WA 98039
Marc D. Hamburg Senior Vice President and Chief Financial Officer of Berkshire 3555 Farnam Street, Omaha, NE 68131

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