SEC Secures $103 Million Resolution in Major "Cherry-Picking" Scheme Involving Former Western Asset CIO

WASHINGTON, D.C. — In a sweeping enforcement action that underscores the regulatory crackdown on illicit trading practices within institutional investment firms, federal authorities are moving to close the book on one of the most egregious cases of portfolio manipulation in recent years.

The Securities and Exchange Commission (SEC) announced today that it has moved for the entry of a final judgment by consent against Stephen Kenneth Leech II, the former co-chief investment officer of registered investment adviser Western Asset Management Company LLC. If approved by the court, the settlement—coupled with a prior corporate resolution—will result in a staggering $103 million being returned to harmed investors who were systematically disadvantaged by a multi-year "cherry-picking" scheme.

The enforcement action marks the culmination of a joint investigation involving the SEC, the U.S. Attorney’s Office for the Southern District of New York, and the Federal Bureau of Investigation (FBI). Beyond the financial penalties and industry bans facing Leech, the case has sent shockwaves through the asset management sector, highlighting the severe legal and regulatory consequences of breaching fiduciary duties.

Main Facts of the Case

At the heart of the regulatory action is a sophisticated, multi-year fraudulent allocation scheme orchestrated by Leech while serving in a position of high trust as co-chief investment officer at Western Asset Management.

According to the SEC’s original complaint, filed in November 2024, Leech engaged in a classic yet highly destructive form of securities fraud known as "cherry-picking." The illicit activity ran from at least January 2021 through October 2023. During this period, Leech executed futures trades without simultaneously assigning them to specific client accounts. Instead, he routinely delayed allocations until the trading day was nearly over or had concluded—specifically waiting until after the futures markets had set their daily settlement prices.

By holding off on the allocation decisions until the market outcomes were already known, Leech essentially engaged in retroactive trading. This window of hindsight allowed him to observe day-end price movements and deliberately skew the results:

• Favored Portfolios: Leech systematically allocated hundreds of millions of dollars in realized and unrealized first-day gains to a select group of favored portfolios.
• Disfavored Portfolios: Conversely, he dumped a nearly identical volume of realized and unrealized first-day losses onto a separate group of disfavored, unsuspecting client portfolios.

This predatory allocation model fundamentally subverted the fairness of the market for the firm’s clients, artificially inflating the returns of chosen accounts while unjustly saddling others with heavy, manufactured losses.

To resolve the SEC’s civil claims—and without admitting or denying the allegations—Leech has consented to a final judgment, subject to court approval. The terms of the settlement include:

• A $3 million civil monetary penalty.
• A permanent officer-and-director (O&D) bar, prohibiting him from serving as an officer or director of a public company.
• A permanent injunction barring him from future violations of the antifraud provisions of federal securities laws.
• An agreement to accept a forthcoming associational bar from the securities industry, preventing him from associating with any broker, dealer, investment adviser, municipal securities dealer, municipal advisor, transfer agent, or nationally recognized statistical rating organization.

Chronology of the Investigation and Enforcement

The dismantling of Leech’s cherry-picking operation required a coordinated, multi-year effort by federal regulators and criminal prosecutors. The timeline of key milestones reveals how the case unfolded from initial detection to the present day:

• January 2021 – October 2023: The active window of the fraudulent allocation scheme. During these nearly three years, Leech executed and misallocated trades involving hundreds of millions of dollars in futures markets.
• November 2024: The SEC formally filed its civil complaint in federal court against Stephen Kenneth Leech II, detailing the mechanics of the cherry-picking scheme and charging him with systematic violations of federal securities laws.
• June 2026: The regulatory enforcement apparatus accelerated significantly on two distinct fronts:
  • Administrative Proceedings: The Commission instituted settled public administrative proceedings against Western Asset Management Company LLC. The firm was ordered to pay a massive $100 million civil penalty, and the SEC established a Fair Fund specifically designed to distribute money back to the investors who had been assigned losses in the disfavored portfolios.
  • Criminal Guilt: In a separate federal action, Leech pleaded guilty in the U.S. District Court for the Southern District of New York to criminal obstruction of justice charges. The criminal charge stemmed directly from false and misleading testimony that Leech provided to SEC investigators during the course of their inquiry.
• October 6, 2026: The SEC officially moved for the entry of a final judgment by consent against Leech in federal court, securing the $3 million individual penalty, industry bars, and cementing the total $103 million victim relief package alongside Western Asset’s earlier penalty. Sentencing for Leech’s criminal obstruction conviction is slated to take place in the coming weeks.

Supporting Data and Financial Breakdown

The financial footprint of the Western Asset Management enforcement action is among the most substantial in recent SEC history regarding allocation fraud. The total economic remediation hinges on two complementary components:

1. The Corporate Penalty and Fair Fund ($100 Million): Under the June 2026 administrative settlement with Western Asset Management Company LLC, the firm was assessed a $100 million civil penalty. Rather than disappearing into the U.S. Treasury, these funds—or a substantial portion thereof, as mandated by SEC distribution protocols—form the core of a newly established Fair Fund. This vehicle is engineered to directly reimburse the institutional and retail clients whose portfolios were systematically saddled with losses during the three-year scheme.
2. The Individual Penalty ($3 Million): Leech’s consent judgment includes a $3 million personal civil penalty, bringing the combined financial extraction from the wrongdoers to $103 million.

The structure of the $103 million recovery highlights the SEC’s dual focus: holding corporate entities accountable for supervisory and compliance failures that allow rogue actors to operate, while simultaneously pursuing severe financial and professional penalties against the individual perpetrators.

Official Responses and Stakeholder Reactions

The gravity of the misconduct drew sharp rebukes from federal regulators and law enforcement agencies, who emphasized the foundational importance of fiduciary trust in the capital markets.

Brent Wilner, Associate Director of the SEC’s Los Angeles Regional Office, did not mince words when discussing the behavior of both Leech and the firm.

"The conduct by Leech and Western Asset was an egregious breach of fiduciary obligations to their clients," Wilner stated. "Together, the resolution with Leech, if approved by the court, and the SEC’s prior settlement with Western Asset will return $103 million and provide meaningful relief to harmed investors, and reinforce that advisers must put clients first, every time."

The willingness of federal prosecutors to bring criminal charges alongside civil enforcement was underscored by the active participation of the Department of Justice. The SEC formally acknowledged the critical investigative assistance provided by the U.S. Attorney’s Office for the Southern District of New York and the Federal Bureau of Investigation (FBI). The parallel criminal prosecution—culminating in Leech’s June 2026 guilty plea for obstruction of justice—demonstrates that lying to federal investigators carries severe personal liberty consequences well beyond civil fines.

Broader Implications for the Asset Management Industry

The resolution of the Western Asset Management case serves as a watershed moment for the investment advisory industry, carrying several profound implications for compliance officers, portfolio managers, and institutional investors alike.

1. Heightened Scrutiny on Trade Allocation Practices

Cherry-picking is an insidious form of fraud because it often hides in plain sight behind complex, high-volume trading strategies. By utilizing sophisticated data analytics and surveillance tools, the SEC has demonstrated an increasing capability to detect anomalies in trade allocation timings. Investment advisers across the board are now on notice that delayed allocation practices, particularly around settlement windows in futures and other volatile markets, will face intense regulatory scrutiny.

2. The Cost of Cover-Ups

Leech’s trajectory from a high-ranking investment officer to a convicted criminal awaiting sentencing on obstruction of justice charges illustrates a harsh reality of white-collar enforcement: the cover-up is frequently more perilous than the underlying offense. By providing false and misleading testimony to SEC investigators, Leech transformed a severe civil enforcement action into a federal felony. This should serve as a stark deterrent to any executive tempted to mislead regulators during an inquiry.

3. Corporate Accountability and Compliance Culture

The $100 million penalty levied against Western Asset Management in June 2026 reinforces the doctrine of supervisory responsibility. Investment firms cannot simply shrug off rogue behavior by senior executives as isolated incidents. Asset managers must maintain robust internal controls, independent compliance oversight, and real-time monitoring of trade execution and allocation workflows. Failure to detect and halt internal misconduct exposes firms to catastrophic financial penalties and reputational damage.

4. Direct Relief for Investors

For the institutional and individual investors whose portfolios were manipulated, the establishment of the $103 million Fair Fund provides tangible vindication. While financial compensation cannot entirely undo the disruption caused by misallocated gains and losses, the aggressive recovery efforts by the SEC and federal partners demonstrate a continuing commitment to market integrity and investor protection.

As the federal court prepares to review the final consent judgment and Leech awaits sentencing in New York, the case stands as a definitive reminder that the regulatory architecture governing America’s financial markets maintains zero tolerance for those who subvert fiduciary duty for personal or selective gain.