Billions of dollars in unclaimed securities class action settlement funds sit on the table every year because the investors entitled to them never file a claim. Research by Vanderbilt law professor Randall S. Thomas and Duke’s James D. Cox found that fewer than a third of institutional investors with provable losses actually collect what they are owed, and consumer class actions fare worse still. The money that goes unclaimed is redistributed to the investors who did file, returned to the defendant, turned over to the state, or sent to charity under the cy pres doctrine.
How Much Money Is Left Unclaimed
The scale of the problem became clear through two empirical studies. In 2002, Cox and Thomas examined 53 securities settlements and found that only 25 to 33 percent of identifiable institutions with valid claims filed for compensation.1Vanderbilt Law School Scholarship. Leaving Money on the Table: Do Institutional Investors Fail to File Claims in Securities Class Actions Their 2005 follow-up in the Stanford Law Review, titled “Letting Billions Slip Through Your Fingers,” expanded the dataset to 118 settlements and confirmed the pattern: fewer than 30 percent of institutional investors with provable losses collected.2Vanderbilt Law School Scholarship. Letting Billions Slip Through Your Fingers
Consumer class actions tell a similar story on a bigger scale. A 2019 Federal Trade Commission report examining 149 consumer class actions found a median claim rate of just 9 percent.3Harvard Law School Forum on Corporate Governance. Automating Securities Class Action Settlements
The compensatory logic of class actions depends on injured parties actually being compensated. Cox and Thomas concluded there was a “serious mismatch” between those harmed and those paid, with some filers receiving more than their proportional share while most defrauded investors received nothing. They suggested the stronger justification for securities fraud class actions may be deterrence rather than compensation.2Vanderbilt Law School Scholarship. Letting Billions Slip Through Your Fingers
Why So Many Investors Never File
Securities class actions use an opt-out model: class members are automatically included unless they affirmatively withdraw. But collecting money flips the default. There is no global database tracking securities purchases down to the individual customer level, so courts rely on class members to come forward, document their transactions, and file claims — effectively an opt-in to the payout.3Harvard Law School Forum on Corporate Governance. Automating Securities Class Action Settlements
For institutions, Cox and Thomas identified three specific breakdowns. The administrative cost of filing sometimes appears to outweigh the recovery. Many institutions have no designated personnel for claims processing. And settlement notifications sent through banks and brokers often fail to reach the right people inside the organization.1Vanderbilt Law School Scholarship. Leaving Money on the Table: Do Institutional Investors Fail to File Claims in Securities Class Actions
Underneath those operational failures sits a delegation problem. Most institutions hand filing responsibility to their custodian banks, then never check whether the banks actually file. The custodians themselves can have financial disincentives to file on behalf of clients.2Vanderbilt Law School Scholarship. Letting Billions Slip Through Your Fingers
Cox and Thomas argued this is not merely sloppy administration. Drawing on Delaware’s Caremark decision, they contended that institutional trustees have a fiduciary duty of care to build adequate systems for identifying and processing settlement claims, and to monitor those systems once in place.2Vanderbilt Law School Scholarship. Letting Billions Slip Through Your Fingers A pension fund that leaves recoveries uncollected is leaving beneficiary money on the table.
Where the Unclaimed Money Goes
When settlement funds go unclaimed, courts generally use one of four methods to dispose of them: redistribute pro rata among the claimants who did file, revert the funds to the defendant, escheat them to the state, or direct them to charitable organizations under cy pres, a doctrine whose name means “the next best” use.4Boston College Law Review. Unclaimed Funds in Class Action Settlements
Each option carries its own problems. Reversion to the defendant is increasingly disfavored because it undercuts the settlement’s deterrent purpose. Cy pres distributions have drawn judicial scrutiny: Chief Justice John Roberts flagged “fundamental concerns” about the practice in 2013, and the Supreme Court sidestepped the question again in Frank v. Gaos in 2019 without setting definitive limits.5California Law Review. Unclaimed Property
Fixing the Claims Process
The Cox-Thomas findings helped spur a third-party claim-filing industry that submits claims on behalf of institutional investors, and participation rates among large institutions have likely improved. Even so, as one commentator put it, “no one thinks that all or nearly all shareholders receive their share of the settlement funds.”3Harvard Law School Forum on Corporate Governance. Automating Securities Class Action Settlements
More ambitious proposals would eliminate the claims process entirely. One approach would build a centralized system that pulls transaction data directly from banks and brokers and automatically calculates each investor’s pro rata share. A second would use the SEC’s Consolidated Audit Trail (CAT), a surveillance database that tracks roughly 58 billion records of orders, executions, and quotes daily. If the SEC permitted CAT data to be used for settlement distribution, the manual claims process could become unnecessary.3Harvard Law School Forum on Corporate Governance. Automating Securities Class Action Settlements
The CAT’s future is itself uncertain. In April 2026, the SEC issued a concept release questioning the system’s governance, its costs (which grew from an estimated $56 million annually to over $248 million by 2025), and whether it should continue to exist in its current form. Public comments on the CAT’s future were due by June 22, 2026.6Katten. The CAT’s Ninth Life: SEC’s Sweeping Review Could Fundamentally Reshape the Consolidated Audit Trail Any reform that depends on CAT data for settlement distribution hinges on what the SEC decides.
A Related but Separate Change: T+1 Settlement
Trade settlement timing is a different mechanism from settlement-fund claims, but it is often raised in the same conversation. On May 28, 2024, the SEC’s rule shortening the standard settlement cycle from two business days (T+2) to one business day (T+1) took effect under amendments to Rule 15c6-1 of the Securities Exchange Act of 1934. The change was designed to reduce credit, market, and liquidity risks from unsettled trades and applies to stocks, bonds, municipal securities, exchange-traded funds, and certain mutual funds.7SEC. New T+1 Settlement Cycle: What Investors Need to Know The compressed timeline requires broker-dealers to complete allocations, confirmations, and affirmations by the end of the trade date.8SEC. Risk Alert: T+1 Settlement Cycle T+1 affects how quickly trades clear; it does nothing to fix how settlement payouts in class actions reach the investors entitled to them.
What This Means for an Investor With a Claim
If you hold securities through a custodian bank or broker and a class action settles involving one of those positions, the money is not automatic. Someone has to file a claim form, document the transactions, and meet the administrator’s deadline. Where institutional trustees are involved, Cox and Thomas’s fiduciary-duty argument puts the responsibility squarely on the trustee to have a system in place and to confirm it is working. For funds that remain unclaimed after the deadline, your share does not stay set aside — it goes to the other claimants, the defendant, the state, or a charitable recipient, depending on what the court orders.