backThe Department of Justice Antitrust Division’s Whistleblower Rewards Program has attracted significant attention since its launch in 2025 and following the Division’s announcement of its first whistleblower reward less than a year later.1Press Release, U.S. Dep't of Justice, Antitrust Div. & U.S. Postal Serv., Antitrust Division and U.S. Postal Service Make First-Ever Whistleblower Payment: $1M Awarded for Reporting Antitrust Crime (Jan. 29, 2026), https://www.justice.gov/opa/pr/antitrust-division-and-us-postal-service-award-first-ever-1m-payment-whistleblower-reporting. The program fundamentally alters the timeline of criminal antitrust investigations by financially incentivizing employees and former employees to approach the Division prior to a company completing an internal investigation, assessing exposure, or making leniency decisions.
Since its launch, considerable attention has focused on how the program works and what it means for corporate compliance and leniency. Within that discussion, some misconceptions have emerged regarding both whistleblower eligibility and the program’s practical effect on antitrust investigations. As one of the former Division officials involved in launching and implementing the program, I believe those misconceptions obscure what may be the program’s most significant consequence: its potential to accelerate the flow of information to the Division and compress the timeline for companies to make critical decisions.
The program’s key features are laid out in the Memorandum of Understanding (“MOU”) that governs the program and establishes its eligibility requirements, reward criteria, and operating procedures.2Memorandum of Understanding Regarding the Whistleblower Rewards Program and Procedures Between the Antitrust Division of the United States Department of Justice, the United States Postal Service, and the United States Postal Service Office of Inspector General, executed May 7, 2025 (“MOU”), available at https://www.justice.gov/atr/media/1407261/dl?inline. There are six key takeaways that companies should understand:
- Whistleblower eligibility is broader than many assume. Employees may qualify for rewards even after the Division already knows about the underlying conduct, and multiple whistleblowers may recover in the same investigation. That is not an accident: the program is designed to accelerate the flow of information to the Division and allow it to recruit multiple cooperators who can provide new information throughout the life of a case.
- The financial incentives may be enormous. In large cartel matters, individual whistleblower awards could reach into the hundreds of millions of dollars.
- Corporate leniency can cut off whistleblower incentives. Once a company secures a leniency marker, its employees will likely be ineligible for a whistleblower reward.
- Employees may now be racing their employers. In some circumstances, individual whistleblowers who have culpability may jeopardize a company’s ability to obtain leniency for the same conspiracy.
- Declining to seek a leniency marker is now riskier than before. The rewards program makes the time available to investigate allegations and evaluate leniency options shorter than ever, and it changes the downside risk of leniency: even where leniency carries costs, the risk of detection is now higher and delaying or forgoing a marker may increase the risk that an employee reaches Division first and narrows the company’s options.
- Early detection matters even when leniency is not the answer. While parallel civil exposure may make leniency too costly or strategically unattractive, early detection still allows the company to assess the facts, identify potential whistleblowers, manage reporting incentives, and develop a strategy before employees or competitors control the narrative.
I. The Division Does Not Need to Learn About the Conduct from the Whistleblower
One of the most common misconceptions about the program is that a whistleblower must be the first to make the Division aware of the underlying misconduct to be eligible for a reward. Unlike with similar programs under the FCA or Type A leniency, that assumption is incorrect.
Instead, the MOU requires a whistleblower to provide “Original Information,” defined in relevant part as information “not already known to the Antitrust Division, USPIS, or USPS OIG from any other source.”3MOU § IV.A.3.a.ii. Notably absent from that definition is any requirement that the Division be unaware of the underlying conduct itself. That distinction is critical because it significantly expands the circumstances under which an individual may qualify for a reward.
Consider a hypothetical cartel investigation where the Division receives evidence that competitors met to discuss prices and opens a grand jury investigation. The Division issues corporate subpoenas, interviews witnesses, and begins collecting documents.
Some practitioners appear to have assumed that any employee who comes forward after that point is effectively out of the running for a whistleblower reward, but the MOU states otherwise. An employee who later identifies previously unknown participants, authenticates communications, explains coded language, provides evidence concerning intent, identifies additional meetings, or supplies new documents or records may still be providing Original Information within the meaning of the program and will still be reward-eligible as long as they were not personally subject to a grand jury subpoena or their company has not received a leniency marker. The Division’s general awareness of the underlying conduct does not mean it already possesses all of that information.
The MOU also specifically authorizes the Division to consider whether the information “resulted in the conservation of government resources,” “supported one or more criminal convictions,” or helped identify “new and productive lines of inquiry” in determination of reward amounts.4MOU § IV.B.3–5. By creating a reward structure that prioritizes the value of the contributions rather than the timing, the program specifically encourages ongoing cooperation.
This feature is not an accident. Cartel investigations rarely succeed because of a single witness. Successful prosecutions frequently depend on multiple cooperators providing evidence, explaining various and sometimes conflicting communications, and corroborating different aspects of the conduct. The rewards program provides the Division another mechanism to recruit cooperators and encourage ongoing cooperation throughout the life of the case.
For companies, this means that government awareness of potential misconduct does not eliminate whistleblower risk. In many cases, it may increase it.
Indeed, once the Division identifies a potential cartel and begins investigating, prosecutors and agents may use the prospect of a monetary reward affirmatively to recruit otherwise reluctant employees who possess information that could materially advance the investigation. The result is a system designed not merely to initiate investigations, but to strengthen and expand them over time by providing the Division with a new carrot to encourage individual cooperation.
That reality places a premium on rapid internal detection and investigation. Companies and practitioners that assume government awareness of conduct has eliminated the risk of additional whistleblower reports are operating under a dangerous misconception.
II. Multiple Whistleblowers Can Recover in the Same Matter
The ability of the Division to recruit new cooperators throughout the life of an investigation is reinforced by another feature of the program that has received relatively little attention: the program expressly permits multiple whistleblowers to recover in the same matter.
Specifically, the MOU provides that “[i]n the event multiple whistleblowers are eligible for a single award, the total reward shared by all whistleblowers will not exceed 30% of the recovered criminal fine.”5MOU § III.B. That language rejects what many practitioners initially assumed would be a winner-take-all structure. Under many whistleblower regimes, the first person through the door often captures most or all of the available benefit. The Division’s MOU adopts a different approach.
Under the Antitrust Division’s program, an employee does not need to determine whether someone else has already reported the conduct before deciding whether cooperation remains worthwhile. The possibility of an award remains available so long as the individual provides Original Information that contributes meaningfully to the investigation and otherwise satisfies the program’s requirements.
The practical effect is to create continuing incentives for additional whistleblowers to emerge as an investigation develops. That design choice appears entirely consistent with the reward factors contained in the MOU. The Division may consider whether the whistleblower provided “ongoing, extensive, and timely cooperation and assistance,” including helping investigators interpret evidence, explain complex transactions, or identify new investigative avenues.6MOU § IV.B.3–5. The MOU therefore contemplates that whistleblowers may contribute in different ways and at different stages of an investigation.
For companies, this significantly changes the reporting calculus. Current employees, former employees, competitors, customers, and other market participants may all possess information that could potentially qualify for an award. More importantly, the existence of one cooperator may increase rather than decrease the likelihood that additional individuals come forward. Once employees learn that the Division is investigating, the possibility that another person may obtain a financial reward creates incentives for others to cooperate before potentially valuable information loses relevance.
Taken together, the Original Information requirement and the multiple-whistleblower provision double down on the most important aspect of the program’s design. The program is not structured solely to encourage the initial disclosure of misconduct. It is designed to help the Division build stronger investigations by continually attracting additional sources of evidence.
Viewed through the lens of corporate leniency, that feature becomes even more important. For decades, the Antitrust Division’s Corporate Leniency Policy created a race among companies to be the first to come forward. The Whistleblower Rewards Program introduces a second race operating simultaneously at the individual level by incentivizing employees to come forward even sooner and to be the first to provide new information throughout the life of the case.
III. The Most Important Provision in the MOU: Voluntariness
Some of the most consequential language in the MOU appears in the definition of “voluntarily.” The MOU provides that information is voluntary only when it is communicated “before a formal demand (e.g., grand jury subpoena)” and where the individual has “no preexisting obligation in connection with a criminal investigation or prosecution or civil enforcement action to report the information ... including as part of an employer’s application to the Antitrust Division's Corporate Leniency Policy.”7MOU § IV.A.2.a
That language deserves careful attention because it has significant implications for both whistleblower eligibility and corporate decision-making. The voluntariness requirement suggests there are at least two circumstances where the incentives for an employee to blow the whistle disappear: (1) when an employee receives an individual grand jury subpoena, and (2) when an employee becomes subject to cooperation obligations arising from a company’s application under the Division’s Corporate Leniency Policy.
Grand Jury Subpoenas
The subpoena provision is the clearest example. The MOU states that information is voluntary only if it is provided before a “formal demand (e.g., grand jury subpoena).” That language is clear that once an employee receives an individual subpoena concerning the relevant subject matter, information provided in response to that subpoena is no longer voluntary for purposes of the program. This would similarly apply to individual search warrants or other individual compulsory process.
This makes sense. The purpose of the rewards program is to encourage individuals to come forward before the government compels their participation. Once the government has exercised its subpoena power, the individual is no longer acting solely because of the incentives created by the program, but rather due to a legal obligation.
The possibility that eligibility may be lost upon service of an individual subpoena creates additional incentives for employees to approach the Division early in an investigation. Individuals who become aware of a developing investigation may conclude that delaying disclosure creates a meaningful risk that a future individual subpoena will foreclose their ability to obtain an award. The result is yet another force pushing employees toward earlier reporting.
Corporate Leniency Applications and Preexisting Obligations
The implications of the voluntariness requirement become even more significant when viewed in conjunction with the Antitrust Division’s Corporate Leniency Policy. For decades, the Corporate Leniency Policy has served as the centerpiece of criminal antitrust enforcement. In exchange for satisfying the requirements of the policy, qualifying companies obtain substantial benefits, including avoiding criminal convictions and fines for the company and employees, and avoiding treble damages in parallel civil class actions.
A company seeking leniency must provide full, continuing, and complete cooperation throughout the investigation. In practice, that cooperation almost always includes identifying relevant employees, making witnesses available for interviews, and facilitating grand jury and trial testimony. The MOU recognizes this, which is why the definition of voluntariness does not merely reference subpoenas. It specifically states that information is voluntary only where the individual has “no preexisting obligation” to report the information, including obligations arising “as part of an employer’s application to the Antitrust Division's Corporate Leniency Policy.”8MOU § IV.A.2.a.
That language is notable because it is the only statement in the MOU expressly addressing the intersection between the rewards program and leniency. And while the MOU does not expressly state that employees of leniency applicants are categorically ineligible for rewards, savvy antitrust counsel may be able to confirm this interpretation with Division staff when seeking a leniency marker.
For companies, this dynamic creates an additional benefit of rapid leniency decisions that has received relatively little attention. By obtaining a marker before employees independently report misconduct, a company may not only preserve its own eligibility for leniency but may also narrow the period during which employees can plausibly claim that information was voluntarily disclosed for purposes of obtaining a whistleblower reward. In other words, the race for leniency may now also be a race to control the narrative and how information reaches the government.
IV. Whistleblower Rewards and Individual Leniency Are Not Mutually Exclusive
Another aspect of the program that has received limited attention is that whistleblower rewards and individual leniency may be available concurrently. Whereas the Leniency Policy historically provided limited incentives for “culpable” individuals to approach the Division for leniency independent of their employers, the prospect of both protection from prosecution and a substantial financial reward creates a far more powerful incentive to do so.9See MOU § IV.A.1 (Individuals involved in the criminal conduct are eligible for whistleblower rewards unless they “coerced another party to participate in the illegal activity or were clearly the leader or originator of that activity”).
This dynamic also creates additional risks for companies. The Division’s Leniency FAQs expressly recognize that organizations may find themselves in a race not only with co-conspirators, but also with “their own employees, who may seek individual leniency and have whistleblower protections if they report to the Division.”10U.S. Dep’t of Justice, Antitrust Division, Frequently Asked Questions About the Antitrust Division's Leniency Program and Model Leniency Letters FAQ No. 3 (updated Jan. 3, 2023), available at https://www.justice.gov/atr/page/file/1490311/dl?inline. The FAQs further emphasize that “only one organization or individual can receive leniency per conspiracy.” As a result, an employee who reaches the Division first may materially affect the company’s own leniency prospects.
Fortunately for companies, that risk may be more limited in practice. While the Whistleblower Rewards Program may be available even after the Division has learned of the underlying conduct, individual leniency is more restrictive. Under the Division’s current policy, individuals are eligible only for Type A leniency, which requires that the Division be unaware of the conduct when the individual approaches the government.11U.S. Dep't of Justice, Justice Manual § 7-3.330, Individual Leniency (updated June 2022), available at https://www.justice.gov/jm/jm-7-3000-organization-division#7-3.330. Companies that promptly detect potential violations, investigate credible allegations, and evaluate leniency options are therefore less likely to find themselves overtaken by employees seeking individual leniency.
Companies should not assume, however, that a narrower path to individual leniency eliminates the incentives created by the rewards program for culpable whistleblowers. As a practical matter, a whistleblower who provides significant cooperation and otherwise satisfies the program’s requirements would be a strong candidate for a separate non-prosecution agreement or informal letter immunity. Indeed, the Leniency Policy already contemplates this scenario, and it would make little policy sense for the Division to create financial incentives encouraging culpable individuals to report misconduct mid-investigation and then prosecute those same individuals after they provide valuable information. The Division may eventually provide formal guidance in the leniency FAQs on this issue, as the intersection between whistleblowers and non-prosecution protection is likely to become increasingly important. But even absent such guidance, counsel representing potential whistleblowers can engage with Division staff early on about these non-prosecution options.
The result here is that a culpable employee may now have incentives to report misconduct not only to seek protection from prosecution, but also to preserve eligibility for a financial reward. Those incentives are likely strongest at the earliest stages of an investigation, further reinforcing the program’s broader objective of accelerating the flow of information to the Division.
V. Internal Reporting May Start a 120-Day Clock
The MOU also contains an important internal-reporting provision that companies should not overlook. If an individual first reports information through an entity’s internal whistleblower, legal, or compliance procedures and later reports to the Division within 120 days, the Division will deem the date of the internal report to be the date of the individual’s disclosure to the Division for purposes of evaluating an award.12MOU § IV.A.3.c
That provision encourages employees to use internal reporting channels without forfeiting potential whistleblower eligibility. But it also has a practical consequence for companies: an internal complaint may effectively start a 120-day clock. Companies therefore should not assume that an internal report gives them unlimited time to investigate before the government becomes involved. Once potentially criminal antitrust allegations reach legal or compliance personnel, companies should be prepared to evaluate options quickly.
VI. The First $1 Million Reward Does Not Create a Ceiling, Nor Does the Postal Nexus Create a Barrier
The Antitrust Division’s announcement of its first whistleblower reward—a $1 million payment to an unidentified individual—generated significant attention, in part because it provided the first concrete example of the program operating in practice. However, the announcement also created a misconception that may understate the program’s potential impact. Specifically, some observers appear to have concluded that whistleblower rewards under the program are capped at $1 million dollars. Not so.
Under the program, whistleblowers become eligible for an award when their information contributes to a resolution involving a criminal fine of at least $1 million. Once that threshold is met, the MOU provides that “the presumption will be that the total reward will be at least 15% of the recovered criminal fine” and that “[t]he maximum total reward will be 30% of the recovered criminal fine.”13MOU § III.B Those percentages are significant. Criminal Sherman Act violations expose corporations to criminal fines of up to $100 million, and in many cases substantially more under the Alternative Fines Act, which permits fines based on twice the gain derived from the offense or twice the loss suffered by victims.14MOU § III.B n.1 (noting Sherman Act criminal penalties and the availability of enhanced fines under 18 U.S.C. § 3571(d)). Historically, some of the Antitrust Division’s largest cartel resolutions have involved criminal penalties measured in the hundreds of millions of dollars, and some into the billions of dollars. Against that backdrop, the substantial financial incentives created by the rewards program become much easier to understand.
Similarly, some commentators initially suggested that the program’s requirement of a Postal Service nexus would limit whistleblower rewards. That concern was dispelled by the Division’s first award announcement, where the Postal Service was only tangentially implicated in the conduct through a party’s incidental use of the U.S. mails. As a practical matter, the postal nexus is better understood as a mechanism that permits the program to operate under existing statutory authorities rather than a substantive limitation on whistleblower eligibility.
VII. Practical Implications for Companies: Compliance, Early Detection, and the Limits of Leniency
The Whistleblower Rewards Program creates a number of practical challenges for companies seeking to manage antitrust risk. It creates incentives for employees to report early, permits multiple whistleblowers to recover in the same matter, allows the Division to recruit whistleblowers throughout the life of an investigation, and limits eligibility once cooperation becomes compelled through individual subpoenas or obligations arising from a company’s application under the Corporate Leniency Policy. Collectively, those MOU provisions create pressure toward earlier disclosure, particularly with potential reward amounts reaching into the hundreds of millions of dollars in large investigations. Companies should therefore assume that the timeline between internal detection and government reporting may continue to shrink.
That also has implications for compliance programs, internal investigations, and corporate leniency decisions.
Compliance Programs
Companies should evaluate whether their antitrust compliance and investigation protocols are structured for the timeline created by the rewards program. In particular, companies should consider whether they can:
- identify and escalate potentially criminal antitrust allegations quickly;
- determine who has authority to evaluate leniency and when that decision must be made;
- triage which employees have relevant knowledge and may have independent incentives to approach the Division;
- assess whether internal reporting channels are trusted by employees;
- coordinate legal, compliance, audit, and business personnel without creating unnecessary delay; and
- engage experienced criminal antitrust counsel early enough to preserve strategic options.
The critical question is whether the company can move from initial report to an informed decision before employees independently reach the Division.
Internal Investigations
The rewards program also increases the importance of speed during internal investigations. Historically, companies sometimes had the luxury of conducting relatively deliberate investigations before making strategic decisions. That may become increasingly difficult in a world with the Division’s whistleblower program. The practical consequence is that companies may need to reach preliminary assessments more quickly than they have in the past. That does not mean sacrificing rigor or accuracy. It means recognizing that delay itself may carry more significant costs, and that hiring competent, experienced criminal antitrust counsel who can efficiently complete an initial investigation is more important than ever.
Leniency Decisions
The Corporate Leniency Policy remains one of the most powerful tools available to companies facing significant criminal antitrust exposure. It can allow a company to avoid criminal conviction, criminal fines, and prosecution of employees. But even if leniency is not the right answer because of potentially costly collateral consequences, the value of early detection in the whistleblower era is not limited to winning the race for leniency. Early detection also gives the company time to understand the facts, assess the scope of potential exposure, identify employees with relevant knowledge, evaluate whether those employees may have independent incentives to report, and develop a strategy for minimizing that risk.
Conclusion
The Antitrust Division’s Whistleblower Rewards Program should be understood primarily as an investigative tool for the Division. Its principal purpose is not to reward whistleblowers after the fact; it is to increase the speed, quantity, and quality of information reaching the Division from individuals with insider knowledge of potential criminal antitrust violations.
The program accomplishes that objective through a series of mutually reinforcing incentives. It permits rewards even when the Division already knows about the underlying conduct. It allows multiple whistleblowers to recover in the same matter. And it only rewards disclosures made before individual subpoenas issue and before cooperation obligations arise through the Corporate Leniency Policy.
In this new enforcement environment, companies that can rapidly detect, investigate, and evaluate potential antitrust issues will be best positioned to preserve strategic flexibility, including valuable leniency opportunities. Those that cannot may find that critical strategic decisions are effectively being made for them by employees who reach the Division first.
About the Author
Ryan Tansey is a partner in King & Spalding’s New York office and previously served as Chief of the Washington Criminal Section of the U.S. Department of Justice Antitrust Division, where he led the Division’s largest section. During his tenure, Ryan helped launch and implement the Division’s Whistleblower Rewards Program and oversaw matters involving the program during its rollout, including the first publicly announced $1 million payment. His practice focuses on criminal antitrust investigations, class action defense, leniency strategy, and high-stakes trial matters.