A tripling in revenue during the past few years means that Gilead Sciences (NASDAQ:GILD) is kicking off record cash flow. Fortunately for investors, Gilead Sciences’ management plans to make sure a big chunk of that money ends up benefiting shareholders. The company has returned 75% of its free cash flow to investors since 2010, and a new buyback and dividend increase suggest that that payout rate isn’t likely to change dramatically anytime soon.