Key Takeaways
- • Stefan Lumiere, former portfolio manager at Visium Asset Management LP and brother-in-law of founder Jacob Gottlieb, was convicted on all counts of securities fraud following a six-day jury trial in Manhattan federal court presided over by U.S. District Judge Jed S. Rakoff.
- • Lumiere was found guilty of inflating the value of distressed securities and bonds held in hedge fund portfolios he managed, deceiving investors through "fraud and lies" according to prosecutors.
- • The jury reached a guilty verdict in approximately 90 minutes, and Lumiere faces up to 45 years in prison, though sentencing guidelines suggest a more modest term is likely.
- • The conviction is part of a broader enforcement action against Visium, where multiple portfolio managers were indicted on securities fraud charges; the firm's troubles also involved insider trading allegations and asset mismarking schemes that contributed to the $10.7 billion hedge fund's collapse.
- • U.S. Attorney Preet Bharara's office prosecuted the case as part of sweeping securities fraud investigations into the hedge fund industry's valuation practices and investor protection violations.
Summary
Stefan Lumiere, a former portfolio manager at New York-based Visium Asset Management LP, was convicted on all counts of securities fraud on Thursday following a trial in Manhattan federal court. The conviction came swiftly, with the jury deliberating for approximately 90 minutes before reaching guilty verdicts. The case was presided over by U.S. District Judge Jed S. Rakoff. Lumiere, who is the former brother-in-law of Visium founder Jacob Gottlieb, faced charges related to systematically inflating the value of distressed securities and bonds in hedge fund portfolios under his management.
According to federal prosecutors, Lumiere cheated investors through deliberate misrepresentation of asset values. U.S. Attorney Preet Bharara's office characterized the defendant's conduct as involving "fraud and lies" designed to artificially boost fund performance metrics and valuations. The asset mismarking scheme enabled Lumiere to present inflated portfolio values to investors, thereby deceiving them about the true health and performance of the funds he managed.
The conviction represents one component of a larger enforcement initiative targeting Visium's operations. In 2016, federal authorities indicted multiple traders at the firm for securities fraud, including charges related to insider trading involving healthcare sector investments. Sanjay Valvani, described as a star money manager who ran part of Visium's flagship healthcare fund, was separately accused of trading on inside information. Another Visium employee died by suicide during the proceedings. The SEC also issued orders finding that portfolio managers at Visium falsely inflated security values across multiple hedge fund portfolios.
Lumiere faces sentencing with potential exposure of up to 45 years in prison, though actual sentencing is expected to be significantly more lenient based on sentencing guidelines. The case underscores ongoing regulatory scrutiny of hedge fund valuation practices and portfolio management oversight, reflecting broader concerns about investor protection and fraud prevention in alternative asset management.
According to federal prosecutors, Lumiere cheated investors through deliberate misrepresentation of asset values. U.S. Attorney Preet Bharara's office characterized the defendant's conduct as involving "fraud and lies" designed to artificially boost fund performance metrics and valuations. The asset mismarking scheme enabled Lumiere to present inflated portfolio values to investors, thereby deceiving them about the true health and performance of the funds he managed.
The conviction represents one component of a larger enforcement initiative targeting Visium's operations. In 2016, federal authorities indicted multiple traders at the firm for securities fraud, including charges related to insider trading involving healthcare sector investments. Sanjay Valvani, described as a star money manager who ran part of Visium's flagship healthcare fund, was separately accused of trading on inside information. Another Visium employee died by suicide during the proceedings. The SEC also issued orders finding that portfolio managers at Visium falsely inflated security values across multiple hedge fund portfolios.
Lumiere faces sentencing with potential exposure of up to 45 years in prison, though actual sentencing is expected to be significantly more lenient based on sentencing guidelines. The case underscores ongoing regulatory scrutiny of hedge fund valuation practices and portfolio management oversight, reflecting broader concerns about investor protection and fraud prevention in alternative asset management.
Go deeper than the headline
Research every firm in this story, track the ones that matter and get the daily briefing — free for 7 days.