As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 6/29/18  Berkshire Hathaway Inc.           11-K       12/31/17    3:156K                                   Donnelley … Solutions/FA 
 6/27/18‡ Berkshire Hathaway Inc.           11-K       12/31/17    3:212K                                   Donnelley … Solutions/FA 
 6/22/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:176K                                   Donnelley … Solutions/FA 
 6/22/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:160K                                   Donnelley … Solutions/FA 
 6/21/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:159K                                   Donnelley … Solutions/FA 
 6/21/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:136K                                   Donnelley … Solutions/FA 
 6/21/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:123K                                   Donnelley … Solutions/FA 
 6/20/18  Berkshire Hathaway Inc.           11-K       12/31/17    1:146K                                   Donnelley … Solutions/FA 
 6/20/18  Berkshire Hathaway Inc.           11-K       12/31/17    1:268K                                   Donnelley … Solutions/FA 
 6/19/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:150K                                   Donnelley … Solutions/FA 
 6/19/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:123K                                   Donnelley … Solutions/FA 
 6/12/18  Berkshire Hathaway Inc.           11-K       12/31/17    2:136K                                   Donnelley … Solutions/FA 
 5/31/18  Berkshire Hathaway Inc.           SD         12/31/17    2:29K                                    Donnelley … Solutions/FA 
 2/26/18  Berkshire Hathaway Inc.           10-K       12/31/17  145:16M                                    Donnelley … Solutions/FA 
 2/14/18  Guyman Charlotte                  5          Director²   1:7K   Berkshire Hathaway Inc.           DONNELLEY FIN… File16/FA 
 2/14/18  Berkshire Hathaway Inc.           13F-HR     12/31/17    2:72K                                    Donnelley … Solutions/FA 

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‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Types:
	5	Annual Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 5 { The Filer is an Insider² of the Issuer }.
	10-K	Annual Report — Form 10-K.
	11-K	Annual Report by an Employee Stock Purchase, Savings or Similar Plan — Form 11-K.
	13F-HR	Quarterly Holdings and Combination Report by a Money Manager — Form 13F.
	SD	Specialized Disclosure Report re: the Use of Conflict Minerals — Form SD.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.