Kevin Lamarque/Reuters BRK.A Berkshire Hath Rg-A 300,045.00 11,563.00 (+4.00 %) Disclaimer Get real-time BRK.A charts here " Berkshire Hathaway is jumping Wednesday after the company loosened its share buyback policy. The conglomerate is under pressure to put excess cash to work. The loosened policy gives full discretion to Chairman Warren Buffett and Vice Chairman Charlie Munger to authorize buybacks if they deem the purchase price below the real value of the company.