Respondent-appellant Matthew Swain appeals from a judgment of the United States District Court for the Southern District of New York (Colleen McMahon, Chief Judge). On appeal, Swain argues that the district court lacked subject matter jurisdiction over a petition to compel arbitration brought by petitioner-appellee Hermes of Paris, Inc. (“Hermes”) under § 4 of the Federal Arbitration Act (“FAA”). For the reasons set forth below, we conclude that the district court had diversity jurisdiction and accordingly AFFIRM its judgment.
BACKGROUND
In November 2015, Swain was fired from his job with Hermes managing the company’s boutique at the Mall at Short Hills in New Jersey. In July 2016, Swain, a New Jersey resident, sued Hermes in New Jersey state court, asserting claims under New Jersey state law for discrimination and hostile work environment on the basis of sexual orientation, retaliation, and breach of contract. Swain named as defendants in that suit Hermes,' and Lorenzo Bautista, who worked with Swain at the Short Hills Hermes store.
Thereafter, asserting federal jurisdiction based on diversity of citizenship, Hermes filed a petition in the district court to compel arbitration pursuant to § 4 of the FAA, naming Swain as the only respondent and citing a dispute resolution protocol that he had allegedly signed in August 2015.
DISCUSSION
On appeal, Swain does not contest the arbitrability of his dispute with Hermes, arguing instead that the district court lacked subject matter jurisdiction due to a lack of complete diversity of citizenship. He does not dispute that the parties to the petition to compel arbitration
Swain’s argument is foreclosed by our decision in Doctor’s Associates, Inc. v. Distajo,
In so holding, we rejected the “look-through” approach that Swain urges here, reasoning that § 4 of the FAA provides for jurisdiction over a suit arising out of a controversy between “the parties,” which “most sensibly refers to those persons who are parties to the arbitration agreement— and who therefore can be named in the petition to compel arbitration.” Id. at 445 (internal quotation marks omitted). Adopting the argument made by the petitioner in Distajo, we reasoned that requiring that the parties to the underlying dispute be completely diverse would “fatally undermine[ ]” the FAA because it would allow “a
Swain argues, however, that the Supreme Court’s ruling in Vaden v. Discover Bank,
Nowhere in Vaden, however, did the Court address whether a look-through approach should likewise apply where courts assert diversity jurisdiction over an FAA petition. Indeed, the Court specifically noted that diversity of citizenship was not available as a jurisdictional basis for the petition at issue in Vaden,
CONCLUSION
For the foregoing reasons, we AFFIRM the judgment of the district court.
Notes
. Section 4 of the FAA is "something of an anomaly” in that its statutory text “bestows no federal jurisdiction but rather requires for access to a federal forum an independent jurisdictional basis over the parties’ dispute.” Vaden v. Discover Bank,
. The district court denied Hermés’ request that it enjoin the New Jersey action, concluding that it lacked the authority to do so under the Anti-Injunction Act, see 28 U.S.C. § 2283. Hermes does not challenge that aspect of the district court’s ruling, on which we express no view.
. While Swain presses this argument for the first time on appeal, we consider it nonetheless given that "federal courts have a duty to inquire into their subject matter jurisdiction sua sponte.” F5 Capital v. Pappas,
. Swain argues for the first time in his reply brief that Bautista was a third-party beneficiary of the dispute resolution protocol and must therefore be joined under Rule 19 as an indispensable party, thus destroying complete diversity. Although we might normally consider .such an argument forfeited,, we consider it here as it may bear on the question of subject matter jurisdiction. See F5 Capital,
. See Dell Webb Cmtys,, Inc. v. Carlson,
. We note, moreover, that the Supreme Court did not question the district court’s subject matter jurisdiction over the petition to compel
