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  1. Professionals

Michelle D. Tuma

Associate

New York

+1 212-294-3284

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  • Overview
  • Experience
  • Credentials
  • Insights & News

Michelle has experience in a broad range of complex commercial litigation—including securities and M&A-related litigation, antitrust, and white collar and regulatory defense matters.

Michelle's practice spans securities, antitrust, and M&A litigation, as well as Foreign Corrupt Practices Act (FCPA) compliance investigations and counseling. She has experience in various phases of litigation, from pre-complaint investigations through discovery and trial in both state and federal court.

Michelle represents public and private companies primarily in the financial services and banking sectors. She was part of the team which defended a major investment manager against allegations of antitrust and tortious interference at trial in the Delaware Court of Chancery and later simultaneously defended the same entity in the Delaware Superior Court and Southern District of New York. In addition, Michelle also assists companies with respect to potential mergers and acquisitions, serving as a member of the FCPA diligence team for various deals.

Michelle maintains an active pro bono practice, including representing individuals applying for asylum, challenging the use of ICE detainers to prolong the detention of those without U.S. citizenship in New York, and achieving a historic settlement against the Port Authority Police Department related to their alleged discriminatory policing based on sexual orientation in New York transportation facilities. Michelle also helps supervise and facilitate Winston’s involvement with the Transgender Legal Defense Fund’s Name Change Project.

During law school, Michelle interned for both the Hon. Paul G. Gardephe of the U.S. District Court for the Southern District of New York and the Hon. Cathy L. Waldor of the U.S. District Court for the District of New Jersey. Michelle also interned at the Cybercrimes & Identity Theft Bureau of the Manhattan District Attorney's Office.

Prior to law school, Michelle spent four years at the Illinois Innocence Project.

Recent Experience

Representing Chuy’s Holdings in its US$605M Sale to Darden Restaurants
Winston Wins Unanimous Supreme Court Case Clarifying Securities Fraud Liability
Secured Settlement for Fox on Brink of Trial in High-Profile Defamation Litigation Brought by US Dominion Voting Systems
Stellex Capital Management Acquisition of Country Fresh
Stellex Capital Management's Acquisition of Go To Logistics

Michelle was recognized in the 2025 edition of Best Lawyers: Ones to Watch® in America in the area of Litigation - Securities.

Capabilities

Antitrust/Competition
Government Investigations, Enforcement & Compliance
Securities, M&A & Corporate Governance Litigation
Cryptocurrencies, Digital Assets & Blockchain Technology
Financial Services

Recent Experience

Representing Chuy’s Holdings in its US$605M Sale to Darden Restaurants
Winston Wins Unanimous Supreme Court Case Clarifying Securities Fraud Liability
Secured Settlement for Fox on Brink of Trial in High-Profile Defamation Litigation Brought by US Dominion Voting Systems
Stellex Capital Management Acquisition of Country Fresh
Stellex Capital Management's Acquisition of Go To Logistics

Credentials

Education

Michelle received her J.D., magna cum laude, from Fordham University School of Law in 2018 and her B.A., summa cum laude, in political science & legal studies, from the University of Illinois-Springfield in 2015,

    Admissions
    • New Jersey
    • New York

    Related Insights & News

    • "Race, Crime, and the Public's Sentencing Preferences," Public Opinion Quarterly, Co-author, June 2022
    • "Stare Decisis and the Electoral Connection: Do Retention Systems Affect Judges' Deference to Precedent?," State Politics and Policy Quarterly, Co-author, Nov. 2019
    • "Revisiting Roll-Off in Alerted Optical Scan Precincts: Evidence from Illinois General Elections," Election Law Journal, Co-author, Oct. 2015
    Recognitions
    Winston Pro Bono Team Led by Aldo Badini Recognized in Litigator of the Week Column

    January 10, 2025

    Pro Bono In Action
    E.D.N.Y. Grants Summary Judgment for Class of Immigrants Unlawfully Held by Suffolk County

    January 6, 2025

    Pro Bono In Action
    Husband and Wife Who Fled Political Persecution in Angola Receive Asylum After 10-Year Legal Battle

    December 17, 2024

    Blog
    Winston Kicks Off Sixth Cohort of D&I Associate Sponsorship Program and Graduates the Class of 2023-2024

    November 25, 2024

    Recognitions

    Winston Attorneys Recognized in Best Lawyers: Ones to Watch® in America 2025

    August 15, 2024

    Blog
    Google Agrees to Scrub Users’ “Incognito” Browsing Data, But is Left with More Litigation

    May 7, 2024

    News
    Winston Team Wipes Out Pure Omission Liability With Unanimous Supreme Court Ruling

    April 15, 2024

    Speaking Engagement
    Bill O’Neil Speaks at the 36th Annual Tulane Corporate Law Institute

    March 7, 2024

    Sponsorship
    Winston Supports the 51st Annual Securities Regulation Institute

    January 22, 2024

    Blog

    Seeking Clarity on Comcast’s “Rigorous Analysis” Requirement

    December 12, 2023

    Blog
    Winston & Strawn Launches Fifth Cohort of D&I Associate Sponsorship Program

    October 19, 2023

    News
    2022 Pro Bono Impact Report

    May 1, 2023

    View All Insights & News

    Capabilities

    Antitrust/Competition
    Government Investigations, Enforcement & Compliance
    Securities, M&A & Corporate Governance Litigation
    Cryptocurrencies, Digital Assets & Blockchain Technology
    Financial Services
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