Buffett's Berkshire Hathaway ( BRK.A ) recorded a total of $72.7 billion in cash at the end of June, up about 1% from the end of December despite this year's $37 billion acquisitions of aerospace supplier Precision Castparts and battery-maker Duracell, Edward Jones analyst Jim Shanahan said in a telephone interview. Some $61.8 billion was held at the Omaha, Neb.-based conglomerate's insurance businesses alone.