Gilead Sciences Inc.’s move to grab Myr GmbH for about €1.15 billion (US$1.39 billion) in cash up front, with €300 million if the latter’s Hepcludex (bulevirtide) wins FDA clearance, put chronic hepatitis delta virus (HDV) in the headlines and benefited the stock of another player in the space: Eiger Biopharmaceuticals Inc. (NASDAQ:EIGR), which closed at $10.27, up $1.51, or 17%.