#### Rudolph A. GREENE, Sr.; Karen Dowhite; Sheila Diane Dowhite, Plaintiffs-Appellees, v. FAMOUS PAWN, INCORPORATED, Defendant-Appellant, and Famous Pawnbrokers/First Cash Loans; Famous Pawnbrokers, a/k/a JB Pawn, Incorporated; First Cash Financial Services, Incorporated; Unknown Other Persons and Entities, Defendants.

No. 02-2263.

United States Court of Appeals, Fourth Circuit.

Submitted June 30, 2003.

Decided Aug. 14, 2003.

Kenneth L. Thompson, Piper Rudnick, L.L.P., Baltimore, Maryland; Claudia Callaway, Erin P. Lane, Rikki D. McCoy, Paul, Hastings, Janofsky, & Walker, L.L.P., Washington, D.C., for Appellants. John A. Bourgeois, Kramon & Graham, P.A., Baltimore, Maryland; John T. Ward, Ward Kershaw, Baltimore, Maryland, for Appellant.

Before WIDENER, KING, and GREGORY, Circuit Judges.

Dismissed by unpublished PER CURIAM opinion.

OPINION

PER CURIAM.

Famous Pawn, Inc. (“Famous Pawn”) appeals the district court’s orders denying its motion to reconsider its order denying motion to modify class definition and dismiss claims subject to arbitration and denying its motion to stay proceedings pending arbitration. The Federal Arbitration Act expressly permits an immediate appellate challenge to a district court’s denial of a motion to stay proceedings pending arbitration. 9 U.S.C. § 16(a)(1)(A) (2000); *Snowden v. Checkpoint Check Cashing,*290 F.3d 631 (4th Cir.), *cert. denied,*537 U.S. 1087, 123 S.Ct. 695, 154 L.Ed.2d 631 (2002).

The record reveals, however, that the Plaintiffs’ claims in question are not subject to an arbitration agreement.* The district court’s further decertification of the class renders no plaintiff against whom the arbitration may be enforced and the proceedings stayed.

The Constitution limits the jurisdiction of Article III courts to matters that present actual cases or controversies. *See*U.S. Const, art. Ill, § 2, cl.l. A matter that has become moot does not present an actual case or controversy. “[A] case is moot when the issues presented are no longer ‘five’ or the parties lack a legally cognizable interest in the outcome.” *Powell v. McCormack,*395 U.S. 486, 496, 89 S.Ct. 1944, 23 L.Ed.2d 491 (1969). The requirement that a ease have an actual, ongoing controversy extends throughout the pen*254dency of the action. *Preiser v. Newkirk,*422 U.S. 395, 401, 95 S.Ct. 2330, 45 L.Ed.2d 272 (1975). When a case has become moot after the entry of the district court’s judgment, an appellate court no longer has jurisdiction to entertain the appeal. *Mills v. Green,*159 U.S. 651, 653, 16 S.Ct. 132, 40 L.Ed. 293 (1895). We hold that the district court’s decertification of the class renders this appeal moot.

Accordingly, we dismiss this appeal for lack of subject matter jurisdiction. We further deny Famous Pawn’s motion for leave to file attachment to its brief and the Appellees’ request for stay of appeal. We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

*DISMISSED.*

*

 To the extent that Karen Dowhite signed the original arbitration agreement with respect to one claim, Famous Pawn does not take issue with this claim on appeal.