*640 OPINION
Plaintiff-Appellant QualChoice, Inc. (“QualChoice”), a fiduciary and administrator of an employee benefits plan governed by the Employee Retirement Income Security Act of 1974 (“ERISA”), appeals from the district court’s dismissal, for lack of subject matter jurisdiction, of its action to obtain reimbursement under the terms of that plan from Defendanfi-Appellee Robin Rowland (“Rowland”), a plan participant. QualChoice raises three claims of error on appeal. First, QualChoice argues that the district court had jurisdiction pursuant to 28 U.S.C. § 1331, as federal common law provides federal question jurisdiction for ERISA reimbursement actions. Second, QualChoice argues that the district court had jurisdiction pursuant to 29 U.S.C. § 1132(e)(1), as QualChoice prayed for equitable relief within the meaning of 29 U.S.C. § 1132(a)(3). Third, QualChoice argues that the district court erred in granting Rowland’s motion to dismiss for lack of subject matter jurisdiction before allowing QualChoice sufficient time to gather evidence.
For the following reasons, we AFFIRM the district court’s dismissal for lack of subject matter jurisdiction.
I. BACKGROUND
On November 16, 2001, QualChoice filed a complaint against Rowland alleging that QualChoice was a plan administrator and fiduciary for an employee benefit plan governed by ERISA, and that Rowland was a participant in that plan. QualChoice further alleged that it had advanced $80,763.58 to Rowland under the plan to cover medical expenses arising from an accident, that Rowland had settled a claim with the third-party tortfeasor, and that under the terms of the plan Rowland was obligated to reimburse QualChoice from the money she received in that settlement. QualChoice prayed for specific performance of the reimbursement provision of the plan and restitution of the money it had advanced under the plan. On January 11, 2002, Rowland filed a Rule 12(b)(1) motion to dismiss QualChoice’s complaint for lack of subject matter jurisdiction because QualChoice sought only legal remedies for which ERISA does not provide federal question subject matter jurisdiction. On January 21, 2001, QualChoice filed a motion for leave to file an amended complaint that requested equitable relief in order to avoid dismissal for lack of federal question subject matter jurisdiction.
On February 27, 2002, the district court held a case management conference during which it granted QualChoice’s motion for leave to file an amended complaint, but specified that Rowland’s motion to dismiss for lack of subject matter jurisdiction would apply to the amended complaint. On February 28, 2002, QualChoice filed an amended complaint that made many of the same factual allegations as its original complaint but newly alleged that it had advanced $101,440.54 to Rowland and prayed for equitable restitution, imposition of a constructive trust or equitable lien, an order declaring that QualChoice “has a right to the equitable remedy of subrogation to obtain reimbursement ... [and] any other equitable relief.” Joint Appendix (“J.A.”) at 11-12 (First Am. Compl. ¶¶ 10, 13, 14). The amended complaint claimed that federal jurisdiction was proper under 29 U.S.C. § 1132(e) and 28 U.S.C. § 1331. On April 29, 2002, the district court entered an order explaining its obligation to ascertain whether federal question subject matter jurisdiction existed and its power to conduct an evidentiary investigation in furtherance of that goal, and requesting that the parties supply the following “information to the Court as *641 soon as possible.” J.A. at 65-67 (District Ct. Order, 4/29/02) (emphasis added).
•The time and nature of defendant Rowland’s accident, as referred to in ¶ 8 of the amended complaint.
•The details of how Rowland received a “fund in settlement of her claims from the above accident,” id. at ¶ 11 (e.g., whom she sued, what the settlement amount was, and when and to whom settlement amounts were or will be paid).
•Where the monies making up the “fund in settlement” are now.
J.A. at 66-67. (District Ct. Order). One day later, on April 30, 2002, Rowland filed an affidavit sworn by Attorney Claudia R. Eklund (“Attorney Eklund”) in response to the district court’s order.
Attorney Eklund’s affidavit provided the following information. On the evening of November 23, 1994, when a Wheeling & Lake Erie Railroad (“W & LE”) “train was crossing an unguarded, unlit track,” Rowland drove her car into one of the railcars. J.A. at 68 (Eklund Aff. ¶¶ 2, 3). Rowland was severely injured in the accident and required several hospitalizations, surgical procedures, and eventually a below-the-knee amputation. Rowland incurred medical bills totaling $203,000 as a result of the accident. Attorney Eklund represented Robin and Robert Rowland in their lawsuit against W & LE for personal injuries and damages arising out of the collision. W & LE “was an uninsured entity and verified by counsel to be an entity functioning on the verge of bankruptcy.” J.A. at 69 (AfiN 5).' “[A] settlement was proposed under which [W & LE] agreed to pay a total of $147,668.00 over the course of forty-four (44) months.” J.A. at 69 (Aff.116). W & LE agreed to pay an additional $37,500 over the same forty-four months, contingent upon W & LE “obtaining certain concessions from the Surface Transportation Board at a hearing to be held in June, 1998.” J.A. at 69 (Aff.H 7). According to Attorney Eklund, QualChoice agreed to waive any subrogated interest it may have had in the proposed settlement agreement. On December 3, 1997, W & LE and Rowland consummated the settlement agreement. The Surface Transportation Board, however, did not grant the concessions upon which the contingent payment of $37,500 was based; therefore, that amount did not become payable.
On December 3, 1997, upon signing the agreement, W & LE paid a lump sum of $25,000 to Rowland. On May 1,1998, W & LE paid an additional lump sum of $8,000 to Rowland. “[C]ommeneing with June 1, 1998, monthly payments of $2,322.00 for the next 44 months were paid by [W & LE], the last of which was received on January 1, 2002.” J.A. at 69-70 (Aff.H 12). “From the initial payments, the sum of $13,168 was” used to pay litigation expenses. J.A. at 69 (AO 11). From each monthly check, an amount was deducted to pay the $27,308 attorney fee balance. “Robin and Robert Rowland received a net recovery of $107,192.” J.A. at 69 (Aff-¶ 11).
According to Attorney Eklund, “at this time [April 30, 2002], no ‘settlement fund’ exists, as the money has been disbursed over the last 44 months on a monthly basis.” J.A. at 70 (Aff.K 13).
On April 30, 2002, which was the day after the district court requested that the parties supply additional information and the same day that Rowland filed Attorney Eklund’s affidavit, the district court entered an order granting Rowland’s motion to dismiss for lack of subject matter jurisdiction. QualChoice timely appealed the district court’s order dismissing this action for lack of subject matter jurisdiction.
*642 II. ANALYSIS
A. Standard of Review
We review de novo “a district court’s decision to grant a motion to dismiss for lack of subject matter jurisdiction.”
Nichols v. Muskingum College,
B. 28 U.S.C. § 1331
QualChoice argues that the district court had federal question subject matter jurisdiction pursuant to 28 U.S.C. § 1331 because QualChoice sought reimbursement under the terms of an ERISA plan, which we have held may be obtained under federal common law. To support this argument, QualChoice relies upon
Walbro Corp. v. Amerisure Cos.,
Subsequent to our decision in
Walbro,
however, the Supreme Court decided
Great-West Life & Annuity Insurance Co. v. Knudson,
C. 29 U.S.C. § 1132
QualChoice alternatively argues that the district court had subject matter jurisdiction pursuant to 29 U.S.C. § 1132(e)(1) because QualChoice sought equitable remedies within the meaning of 29 U.S.C. § 1132(a)(3). In its amended complaint, *643 QualChoice prayed for restitution, imposition of a constructive trust or equitable lien, “subrogation to obtain reimbursement,” or any other equitable relief that the district court deemed proper. J.A. at 12. QualChoice argues that the settlement money that Rowland recovered from W & LE rightfully belongs to QualChoice; therefore, equity requires imposition of a constructive trust or an equitable lien to prevent unjust enrichment. QualChoice acknowledges that in Knudson, the Supreme Court held that if a plan fiduciary seeks restitution from a plan beneficiary, who recovered from another, and the plan beneficiary does not possess the recovered funds, then the action is merely a legal action under the terms of the contract. QualChoice argues, however, that the instant action is distinguishable from Knud-son because the evidence demonstrates that Rowland possesses the recovered funds. 1 QualChoice further argues that the Supreme Court expressly limited its holding in Knudson to situations where the plan participant or beneficiary did not possess the recovered funds, thereby indicating that the result would have been different if the plan participant or beneficiary did possess the recovered funds. The district court rejected this argument, noting that regardless of Rowland’s possession of an identifiable fund, QualChoice is still seeking damages for breach of contract, and concluding in any case that the beneficiary in Knudson did actually possess the fund, as the beneficiary’s settlement recovery there was placed in a Special Needs Trust and a client trust account.
ERISA contains a section specifying the proper procedures for civil enforcement of the statute. Section 1132(e)(1) provides, “Except for actions under subsection (a)(1)(B) of this section, the district courts of the United States shall have exclusive jurisdiction of civil actions under this sub-chapter brought by the Secretary or by a participant, beneficiary, fiduciary, or any person referred to in section 1021(f)(1) of this title.” Thus, except for actions by a participant or beneficiary to recover benefits under the terms of a plan, and another exception not relevant here, § 1132(e)(1) supplies exclusive federal subject matter jurisdiction for the civil enforcement procedures authorized by § 1132.
Title 29 U.S.C. § 1132(a)(3) is the civil enforcement mechanism available to plan fiduciaries. Section 1132(a) provides:
A civil action may be brought—
(3) by a participant, beneficiary, or fiduciary (A) to enjoin any act or practice which violates any provision of this sub-chapter or the terms of the plan, or (B) to obtain other appropriate equitable re lief(i) to redress such violations or (ii) to enforce any provisions of this subchap-ter or the terms of the plan.
The Supreme Court has emphasized that § 1132(a)(3) does not authorize all relief that a court of equity might award; rather it only authorizes those remedies traditionally awarded by courts of equity. The Court has also made clear that regardless of how plaintiffs label their claims to relief, courts must determine whether the relief sought is truly equitable.
See Knudson,
The district court predicated its dismissal for lack of subject matter jurisdiction upon its conclusion that the instant case is indistinguishable from
Knudson.
In
Knudson,
the Supreme Court held that a plan fiduciary’s action for specific perform-
*644
anee and restitution under the plan’s reimbursement provision was not authorized by § 1132(a)(3).
Knudson,
In cases in which the plaintiff “could not assert title or right to possession of particular property but in which nevertheless he might be able to show just grounds for recovering money to pay for some benefit the defendant had received from him,” the plaintiff had a right to restitution at law through an action derived from the common-law writ of as-sumpsit. In such cases, the plaintiffs claim was considered legal because he sought “to obtain a judgment imposing a merely personal liability upon the defendant to pay a sum of money.” Such claims were viewed essentially as actions at law for breach of contract (whether the contract was actual or implied).
In contrast, a plaintiff could seek restitution in equity, ordinarily in the form of a constructive trust or an equitable lien, where money or property identified as belonging in good conscience to the plaintiff could clearly be traced to particular funds or property in the defendant’s possession. A court of equity could then order a defendant to transfer title (in the case of the constructive trust) or to give a security interest (in the case of the equitable lien) to a plaintiff who was, in the eyes of equity, the true owner. But where “the property [sought to be recovered] or its proceeds have been dissipated so that no product remains, [the plaintiffs] claim is only that of a general creditor,” and the plaintiff “cannot enforce a constructive trust of or an equitable lien upon the property of the [defendant].”
Id.
at 213-14,
the proceeds from the settlement of respondents’ tort action — are not in respondents’ possession [; rather] ... the disbursements from the settlement were paid by two checks, one made payable to the Special Needs Trust and the other to respondents’ attorney.... The basis for petitioners’ claim is not that respondents hold particular funds that, in good conscience, belong to ' petitioners, but that petitioners are contractually entitled to some funds for benefits that they conferred.
Id.
at 214,
Subsequent to
Knudson,
we held that a claim seeking restitution, or imposition of
*645
a constructive trust or equitable lien, is a legal claim if the plan participant or beneficiary does not possess an identifiable fund, regardless of whether the plan participant or beneficiary possesses money recovered from another entity.
Mosser,
Of the circuits that have been faced with this same issue, two have concluded that a reimbursement action by an ERISA fiduciary is equitable if the participant or beneficiary has recovered from another entity and possesses that recovery in an identifiable fund, but legal if the participant or beneficiary does not possess that recovery in an identifiable fund.
See, e.g., Bombardier Aerospace Employee Welfare Benefits Plan v. Ferrer, Poirot and Wansbrough,
Several of these circuit cases, focus largely upon the language throughout
Knudson
emphasizing that the plan beneficiary did not possess the settlement money, and the admonishment near the end of
Knudson
stating that the majority was not foreclosing the possibility that a plan fiduciary might be able to bring an equitable action against the Special Needs Trust or the client trust account.
See, e.g., Varco,
Recently, however, the Fifth Circuit issued an opinion providing a more thorough analysis supporting its view of the distinction between legal and equitable relief.
Bombardier,
The Ninth Circuit has taken the opposite view and held that an action by an ERISA fiduciary to enforce a plan reimbursement provision is legal, regardless of whether the plan participant possesses an identifiable fund.
Westaff (USA) Inc. v. Arce,
The Third and Fourth Circuits have also applied
Knudson
to determine whether the relief the plaintiff sought was legal or equitable, but have done so only in unpublished opinions involving obscure factual scenarios.
See Sackman v. Teaneck Nursing Cir.,
No. 02-1083,
Since
Knudson
was decided, we have dismissed for lack of subject matter jurisdiction several actions brought by plan fiduciaries seeking reimbursement.
See, e.g., Mosser,
In
Mosser,
the plan had paid for the participant’s medical expenses arising out of an accident with a negligent police officer.
Mosser,
did not, in its complaint, allege that it had given certain funds to [the participant], trace those funds to the settlement funds from [the tortfeasor], allege that [the participant] was unjustly enriched by retaining the settlement funds, and seek the return of the settlement funds in [the participant’s possession]. Rather, [the fiduciary] sought “restitution from [the participant] for all covered services.”
Id.
at 624. Although we did not emphasize it our opinion, there was a significant factual difference between
Mosser
and
Knud-son.
In
Knudson,
the plan beneficiary never possessed the money she recovered in her settlement with the tortfeasor, as it had been paid directly into a Special Needs Trust and a client trust account.
Knudson,
In
Saiter,
a case very similar to
Mosser,
the plan paid $164,000 in medical expenses after the participant was injured in a car accident by a negligent driver.
Saiter,
*648
In
Morgan,
a factually complex case, the plan paid $116,000 in medical expenses after the participant was injured in a car accident by a negligent driver.
Morgan,
After thorough review, we believe that no clear or binding answer emerges to the question before us: whether a claim maintained by a fiduciary against a participant or beneficiary, who has recovered money from another and possesses that recovery in an identifiable fund, is an equitable claim under 29 U.S.C. § 1132(a)(3). We therefore must determine ourselves how to answer that question, left open by
Knudson.
To do so, we look to
Dobbs on Remedies,
relied upon by the Court in
Knudson.
Professor Dobbs defines restitution as “a return or restoration of what the defendant has gained in a transaction.” 1 Dan B. Dobbs,
Law of Remedies
551 (2d ed.1993) [hereinafter
Dobbs].
The purpose of restitution “is to prevent the defendant’s unjust enrichment by recapturing the gains the defendant secured in a transaction.”
Id.
at 552,
As
Knudson
points out, however, determining that QualChoice can bring an action for restitution is only half of the analysis. To fall within the district court’s original federal question jurisdiction under § 1132(e)(1), QualChoice’s action must seek equitable rather than legal restitution.
Knudson,
We conclude, however, that the source of the claim asserted by QualChoice is a contract to pay money, and that the procedural mechanisms of constructive trust and equitable lien are not proper mechanisms for enforcing this right, as such relief would not have traditionally been awarded by a court of equity in a breach of contract action. Historically, legal restitution was limited by the concept of formal title. Dobbs at 586. Equitable restitution developed to fill the void left by that limitation and allowed plaintiffs, who lacked formal title, to bring actions for restitution. The problem of formal title was irrelevant in cases where the plaintiff sought intangibles, such as money; therefore, all plaintiffs could bring such actions in the courts of law. Historically, when a plaintiff sought restitution of money for breach of contract, he brought an action for assump-sit, which is a legal remedy. Id. at 571, 578-79 (“Assumpsit was the common law form of action by which contract claims were redressed.”).
Contrary to Rowland’s assertions, a plaintiff is not necessarily required to prove wrongdoing by the defendant in order to obtain relief through imposition of a constructive trust or an equitable lien. Id. at 597-98. “The constructive trust is based on property, not wrongs.” Id. at 597 (emphasis added). “In the constructive trust case the defendant has legal rights in something that in good conscience belongs to the plaintiff.... The defendant is thus made to transfer title to the plaintiff who is, in the eyes of equity, the true ‘owner.’ ” Id. at 587. “The equitable lien uses similar ideas to give the plaintiff a security interest in the property or to give the plaintiff only part of the property rather than all of it.” Id. at 588. It is true that an equitable lien or a constructive trust may be imposed on a particular bank account. See id. at 591. The fact that a plan participant or beneficiary places the money he recovered from another in a bank account does not, however, change the nature of the action. The plan may have obligated Rowland to reimburse QualChoice in the event that QualChoice paid for Rowland’s medical expenses, but it did not give QualChoice a property right in any particular fund. 4
This court has explicitly held that subro-gation is not available in a situation such as this, when the plan participant or beneficiary has already recovered, because sub-
*650
rogation allows a plan fiduciary only to step into the shoes of a plan participant or beneficiary and assert the rights of the participant or beneficiary against another; subrogation does not allow a plan fiduciary to obtain a judgment of personal liability against a plan beneficiary or particpant.
Mosser,
We are aware of significant scholarly criticism of
Knudson
for defining the scope of relief available under ERISA by looking to historical practice of the courts of England.
See, e.g.,
John H. Langbein,
What ERISA Means by “Equitable”: The Supreme Court’s Trail of Error in Russell, Mertens, and Great-West,
103 Colum. L.Rev. 1317, 1318-20 (2003) (arguing that in drafting ERISA, Congress intended to incorporate substantive trust law, including “make-whole relief,” such as money damages). The Supreme Court, however, has twice defined the scope of relief available under § 1132(a)(3) of ERISA in terms of the relief
“typically
available in equity.”
Mertens,
D. Additional Discovery
Because we hold that QualChoice’s action is a legal one seeking to recover money for Rowland’s breach of the plan’s reimbursement provision, regardless of whether Rowland possess an identifiable fund, we need not reach QualChoice’s argument that the district court abused its discretion by dismissing this action without allowing sufficient discovery and within twenty-four hours of requesting that the parties submit additional information.
III. CONCLUSION
Based on the foregoing, we AFFIRM the district court’s order dismissing this action for lack of subject matter jurisdiction.
Notes
. QualChoice argues that Attorney Eklund’s affidavit confirms that Rowland "took possession of [a] settlement 'fund' in the amount of $107,192.00." Appellant's Br. at 24.
. Notably, in both
Primax Recoveries
and
Bauhaus,
the plan participant or beneficiary never possessed the settlement money, much less maintained it in an identifiable fund.
See Primax Recoveries, Inc. v. Sevilla,
. Recently in
Honolulu Joint Apprenticeship and Training Committee of United Ass'n Local Union No. 675
v.
Foster,
. The plan states, “If you receive payment, however designated, from a third party, you are obligated to reimburse QualChoice Health Plan, less a pro rata share of the reasonable attomeys’ fees and costs you sustained in obtaining such recovery." J.A. at 28 (emphasis added).
