OPINION *
Pro se petitioner Mychael Saunders filed a petition for a writ of mandamus, seeking to compel the United States District Court for the Eastern District of Pennsylvania to rule on his motion to vacate his sentence pursuant to 28 U.S.C. § 2255. Thereafter, on April 15, 2015, the District Court entered an order ruling on Saunders’s § 2255 motion. In light of the District Court’s action, the case before us is no longer - a live controversy, so we will dismiss the petition for writ of mandamus as moot. See, e.g., Lusardi v. Xerox Corp., 975 F.2d *74964, 974 (Bd Cir.1992); see also Blanciak v. Allegheny Ludlum Corp., 77 F.3d 690, 698-99 (3d Cir.1996) (“If developments occur during the course of adjudication that eliminate a plaintiffs personal stake in the outcome of a suit or prevent a court from being able to grant the requested relief, the case must be dismissed as moot.”