Berkshire Hathaway dumped a small portion of its Apple shares. That selloff, which involved just over 10 million shares, accompanied the Warren Buffett-helmed conglomerate shrinking its holdings in Paramount Global by 32% and making other portfolio adjustments in the fourth quarter.Even with the cut, Berkshire Hathaway’s stake in Apple, at over 905.5 million shares, remained massive, a Wednesday filing with the Securities and Exchange Commission (SEC) showed. It equated to about $174.3 billion.  WARREN BUFF ...