Benzinga's Top #PreMarket Gainers

Marvell Technology Group MRVL shares jumped 5.96% to $14.58 in pre-market trading after KKR & Co LLP reported a 6.8% stake in the company. Phillips 66 PSX shares gained 1.71% to $76.00 in the pre-market after Berkshire Hathaway (NYSE: BRK-A) announced its plans to buy the flow improver business of Phillips 66 for about $1.4 billion of stock. Perion Network PERI soared 1.16% to $12.17 in the pre-market trading after the company announced its inclusion in the NASDAQ Global Select Market. Facebook FB surged 0.99% to $54.24 in the pre-market session. Facebook shares have jumped 91.82%. over the past 52 weeks, while the S&P 500 index has surged 25.89% in the same period.