Laura Barrientos, former federal prisoner # 09191-180, appeals the district court’s denial of her 18 U.S.C. § 3582(c)(2) motion for a sentence reduction based on Amendment 782 to the Sentencing Guidelines. On June 27, 2016, before this case was decided, Barrientos was released from federal custody. “Where a defendant has begun serving a term of supervised release, the appeal of the denial of [the] § 3582(c)(2) motion is moot.” United States v. Booker, 645 F.3d 328, 328 (5th Cir. 2011). Because this appeal concerns only the denial of Barrientos’s § 3582(c)(2) motion and does not involve issues pertaining to her term of supervised release, we conclude that Bar-rientos’s appeal must be DISMISSED AS MOOT.