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Margaret Nelson headshot.

Margaret Gembala Nelson

Partner

Margaret Gembala Nelson

Partner

Partner Margaret Gembala Nelson is the national chair of Foley & Lardner LLP’s Securities Enforcement & Litigation Practice Group. She represents accounting firms, financial service entities, corporations and their professionals in auditor liability matters, government enforcement investigations and examinations, and complex securities and business litigation.

Margaret has more than 20 years of experience as a regulatory and litigation lawyer focusing on complex securities, accounting, compliance, and commercial matters.

Prior to joining Foley, Margaret spent over five years as assistant general counsel for a large accounting firm where she oversaw all of the firm’s regulatory matters and much of its litigation across all business lines. In this role, she regularly interacted with the SEC, PCAOB, Department of Justice, CFTC, FDIC, Department of Labor, FINRA and various state agencies in connection with regulatory inquiries, investigations, and actions. Additionally, she routinely advised the firm on compliance, risk management, and inspection issues, gaining significant insight into the legal issues confronting the accounting industry.

Also before coming to Foley, Margaret worked at the SEC’s Chicago Regional Office for nine years as senior counsel. While there, she spearheaded numerous high-profile investigations and litigation involving a wide array of securities issues, including financial fraud, offering fraud, registration violations, broker-dealer misconduct, advisory conflicts of interest and insider trading, and often coordinated parallel investigations with other federal and state agencies, including the Department of Justice, Department of Labor, FINRA and the New York State Attorney General’s Office. Margaret was also a member of the Asset Management Unit, a national specialized unit within the SEC’s Enforcement Division that focuses on issues relating to investment advisers, investment companies and private funds.

Following law school, Margaret served as a judicial clerk to the Honorable Jerome Turner of the U.S. District Court, Western District of Tennessee. She also worked for a leading Chicago law firm focusing on complex commercial and securities litigation.

Awards and Recognition

Margaret has earned multiple awards during her time with the SEC, including the Chairman’s Award for Excellence and several Division of Enforcement Director’s Awards and Special Act Awards. She was listed among the Securities Docket’s: “Enforcement Elite” for 2024.

Affiliations

  • Member, Association of SEC Alumni (ASECA)
  • Western Golf Association/Evans Scholars Foundation
    • Director
    • Diversity, Equity & Inclusion Committee Member
    • Audit Committee Member
    • Former Evans Scholarship Recipient

Presentations and Publications

  • Co-author, “SEC Under New Leadership: Changing Priorities and Continued Adviser Scrutiny,” IAA Today (January 7, 2026)
  • Co-author, “Expert networks, alternative data and managing risks of material non-public information,” Journal of Financial Compliance, Volume 7, Number 2 (December 2023)
  • Quoted, “Loose Practices and Imprecise Recordkeeping Prompt SEC Scrutiny, Even When Investors Are Unharmed,” Private Equity Law Report (November 16, 2023)
  • Co-chairing, “Basics of Accounting for Lawyers 2019,” Practicing Law Institute (May 2019)
  • Speaker, “Accountants’ Liability 2019: Strategies for the Profession in an Era of Heightened Enforcement,” American Law Institute Continuing Legal Education Course (October 2019)
  • Speaker, “Accountants’ Liability 2018: The Profession in an Uncertain World”, American Law Institute Continuing Education Course (October 2018)
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March 31, 2026 Foley Viewpoints

SEC Speaks 2026: SEC Leadership Signals a Lighter Regulatory Touch, but Offers Few Enforcement Details

At this year’s Securities and Exchange Commission (SEC or the Commission) Speaks, Chairman Paul Atkins and Commissioners Mark Uyeda and Hester Peirce delivered a broadly consistent message about the Commission’s direction: to modernize outdated rules, reduce unnecessary compliance burdens, provide greater regulatory clarity, and take a more restrained approach to agency authority.
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March 31, 2026 Foley Viewpoints

Reading Between the Lines: The New SEC SOX Enforcement Group

The recent job postings by the Securities and Exchange Commission (SEC) on USAJOBS.gov   — the U.S. government’s job board — has caused speculation regarding the future of the Public Company Accounting Oversight Board’s (PCAOB) Division of Enforcement and Investigations.
March 12, 2026 Pro Bono

Foley Secures Asylum for Family Fleeing Persecution

Foley & Lardner LLP secured asylum for a mother and son fleeing persecution in El Salvador in a recent pro bono case, with the Chicago Immigration Court granting two asylum applications as a result of the firm’s arguments.
A red "FDA Approved" stamp on brown paper, with a rubber stamp nearby and a blister pack of blue and white capsules in the corner—ideal imagery for chicago lawyers specializing in intellectual property law.
January 28, 2026 Blogs

SEC Enforcement Action against Former Spero Executives: Individual Liability for Misleading FDA-Related Disclosures

On January 16, 2026, the Securities and Exchange Commission (SEC) instituted settled cease‑and‑desist proceedings against Ankit Mahadevia and Satyavrat Shukla, the former CEO and CFO of biopharmaceutical company Spero Therapeutics Inc. (Spero), for misleading statements and omissions regarding feedback received from the U.S. Food and Drug Administration (FDA) on Spero’s lead drug candidate, tebipenem.
January 7, 2026 In the News

Foley Attorneys Publish Update on SEC Enforcement Priorities

Foley & Lardner LLP attorneys James Lundy, Margaret Nelson, and Harper Beck discuss shifting enforcement priorities at the U.S. Securities and Exchange Commission in the IAA Today article, “SEC Under New Leadership: Changing Priorities and Continued Adviser Scrutiny.”
November 4, 2025 Honors and Awards

Foley Attorneys Recognized as 2025 Enforcement Elites

Foley & Lardner LLP partners Thomas Krysa, James Lundy, Margaret Gembala Nelson, and Jose Sanchez are named among the 2025 Enforcement Elite by Securities Docket.