.Warren Buffett's Berkshire Hathaway is now a $1 trillion company The Washington PostThese Asian agencies in Buffett's Berkshire Hathaway profile have risen, with one rising 30% CNBCWall Street only provided Warren Buffett a very early birthday party present: Berkshire Hathaway is right now worth $1 mountain CNNHow Long it Took U.S. Companies to Get To a $1 Trillion Valuation Visual CapitalistBerkshire Hathaway covers $1 trillion market hat for very first time as Buffett accelerates BofA assets sales Yahoo Money management.