LAWYER PROFILE
Eric Diamond

Eric Diamond

Global 2026

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Ranked in 2 practice areas

About

Provided by Sullivan & Cromwell LLP

Practice Areas

General Practice

Bank Regulatory

Broker-Dealer

Digital Assets

Environmental, Social and Governance (ESG)

Financial Services

Financial Services Mergers & Acquisitions

Investment Management

Private Equity

Career

Eric Diamond is a partner in the Firm’s Investment Management and Financial Services Groups. Mr. Diamond’s practice focuses on advising asset managers, banks, broker-dealers and other regulated financial institutions on a range of regulatory, compliance and transactional matters. He regularly provides advice to private equity fund, hedge fund, mutual fund and other investment management clients regarding regulation under the Investment Company Act and Investment Advisers Act, including in connection with significant SEC examination and enforcement matters.

Mr. Diamond also regularly represents financial services clients on various strategic and transactional matters, including controlling and minority investments in asset management firms, investments in private equity funds, hedge funds and venture capital funds, selected fund formation matters, and public and private mergers, acquisitions and similar transactions.

Prior to rejoining the Firm in 2020, Mr. Diamond was a senior advisor to SEC Chairman Jay Clayton from 2018 to 2020. In that role, he oversaw the rulemaking and other initiatives of the Division of Investment Management and advised the Chairman on certain investment adviser and broker-dealer enforcement matters. Among other things, he served in a leading role in completing the SEC’s rules and interpretations governing the standards of conduct for investment advisers and broker-dealers, including Regulation Best Interest, and coordinated the SEC’s Inter-Divisional Standards of Conduct Implementation Committee. He also led the SEC’s efforts to amend the interagency regulations implementing the Volcker Rule.

Professional Memberships

ABA; NYSBA

Personal

New York University School of Law, (J.D., 2010); Yale University (B.A., 2005).

Chambers Review

Provided by Chambers

Chambers Global Guide

Investment Funds: Regulatory & Compliance - USA

Band 4
Band 4

Individual Editorial

Eric Diamond chairs Sullivan & Cromwell's investment management practice and advises clients on regulatory compliance in private equity, hedge fund and mutual funds.

Investment Funds: Investor Representation - USA

Band 4
Band 4

Individual Editorial

Eric Diamond of Sullivan & Cromwell is adept at handling a range of sophisticated deals on behalf of financial institutions and sovereign wealth funds. He has notable experience of advising clients on matters related to hedge funds and ETFs.

Strengths

Provided by Chambers

  • He can overcome contentious negotiations and produce a constructive outcome. He keeps a grasp of technical details and works very collaboratively.

    Investment Funds: Regulatory & ComplianceChambers Global Guide
  • Eric is a great lawyer who understands this landscape well.

    Investment Funds: Regulatory & ComplianceChambers Global Guide
  • Eric can overcome contentious negotiations to provide a constructive outcome. He keeps a grasp of technical details within LP agreements and works collaboratively.

    Investment Funds: Investor RepresentationChambers Global Guide
  • We are pleased to work with Eric.

    Investment Funds: Investor RepresentationChambers Global Guide
  • Eric gives very thoughtful advice. I rely on him heavily.

    Investment Funds: Investor RepresentationChambers Global Guide

Ranked Individuals at Sullivan & Cromwell LLP (103)

Australia

Belgium

China

  • Profile image of Gwen Wong
    Gwen Wong

    Capital Markets: Equity (International Firms)

    View profile
  • Profile image of Kay Ian Ng
    Kay Ian Ng

    Capital Markets: Equity (International Firms)

    View profile
  • Profile image of Ching-Yang Lin
    Ching-Yang Lin

    Capital Markets: Equity (International Firms)

    View profile
  • Profile image of Kay Ian Ng
    Kay Ian Ng

    Corporate/M&A: Hong Kong-based (International Firms)

    View profile
  • Profile image of Ching-Yang Lin
    Ching-Yang Lin

    Corporate/M&A: Hong Kong-based (International Firms)

    View profile

France

Germany

Italy

Japan

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