.Warren Buffett's Berkshire Hathaway is today a $1 mountain company The Washington PostThese Asian organizations in Buffett's Berkshire Hathaway collection have risen, with one skyrocketing 30% CNBCWall Street merely offered Warren Buffett an early birthday gift: Berkshire Hathaway is now worth $1 trillion CNNHow Long it Took USA Firms to Reach a $1 Mountain Appraisal Visual CapitalistBerkshire Hathaway tops $1 trillion market limit for first time as Buffett increases BofA stock sales Yahoo Financing.