 According to the All-in-One Screener, a Premium feature of GuruFocus, Warren Buffett Trades, Portfolios Berkshire Hathaway Inc. BRK.A , Financial BRK.B , Financial and Tom Gayner Trades, Portfolios Markel Corp. MKL , Financial have several holdings in common as of the first-quarter 13F filing. Among their common holdings, five stocks that have outperformed the Standard Poors 500 Index over the past three months are Johnson Johnson JNJ , Financial, Celanese Corp. CE , Financial, Marsh McLennan Companies Inc. MMC , Financial, Mastercard Inc. MA , Financial and Visa Inc. V , Financial. 