Modest revenue growth and a 2020 outlook that left analysts uninspired about its near-term prospects pushed Gilead Sciences Inc. shares (NASDAQ:GILD) down about 2% to close Feb. 5 at $65.87, despite growing sales of its HIV medicine, Biktarvy (bictegravir, emtricitabine and tenofovir alafenamide), and what CEO Daniel O'Day called "a sense of urgency" around further business development.