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Matthew H. Leighton

Partner, Simpson Thacher & Bartlett

New York, NY

Matthew H. Leighton is a partner at Simpson Thacher & Bartlett in New York, working on fund formation, private equity funds and private credit funds; in practice since 2014.

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Last verified Oct 24, 2026 against stblaw.com. How we check

Overview

Office
New York, NY
Experience
In practice since 2014 · 12 years
Main practice
Fund formation
Represents
GPs and Sponsors

Appears in: Where Private Fund Lawyers Went to Law School, a FundOpsHQ guide that names everyone it counts.

Source: stblaw.com, as of Oct 24, 2026. View the bio

Practice

  • Fund formationthe practice the bio leads with

    From the bio
    “advising clients on the formation, structuring and ongoing operation of domestic and offshore funds”

  • Private equity funds

    From the bio
    “He represents private equity and hedge fund sponsors focusing on a broad range of asset classes, including buyout, real estate, debt, infrastructure and secondary funds.”

  • Private credit funds

    From the bio
    “He represents private equity and hedge fund sponsors focusing on a broad range of asset classes, including buyout, real estate, debt, infrastructure and secondary funds.”

  • Real estate funds

    From the bio
    “He represents private equity and hedge fund sponsors focusing on a broad range of asset classes, including buyout, real estate, debt, infrastructure and secondary funds.”
3 more practices

  • Infrastructure funds

    From the bio
    “He represents private equity and hedge fund sponsors focusing on a broad range of asset classes, including buyout, real estate, debt, infrastructure and secondary funds.”

  • Hedge funds

    From the bio
    “He represents private equity and hedge fund sponsors focusing on a broad range of asset classes, including buyout, real estate, debt, infrastructure and secondary funds.”

  • Secondaries

    From the bio
    “Lexington Partners in the formation of Lexington Capital Partners X, raising $22.7 billion, the largest-ever secondaries fund”

Read from the practice description in the bio on stblaw.com, as of Oct 24, 2026.

Experience

In practice since 2014 · 12 years

Based on: admitted in New Jersey, 2014.

Years and earlier employers as stated in the bio on stblaw.com, as of Oct 24, 2026.

Education and admissions

Education
  • Cornell Law School, J.D. (2014)
  • Cornell University Johnson Graduate School of Management, M.B.A. (2014)
  • Cornell University, A.B. (2008)
Bar admissions

As the bio lists them. We do not check whether a licence is current; each state’s own lookup does.

As listed in the bio on stblaw.com, as of Oct 24, 2026.

Colleagues at Simpson Thacher & Bartlett

All 58

Fund Lawyers in New York at other firms

All 844

Partners with practices in common with Matthew, most in common first.

  • Jason Behrens

    LinklatersPractices in common: fund formation, private equity funds

  • Robert Blaustein

    Kirkland & EllisPractices in common: fund formation, private equity funds

  • Heather Cruz

    SkaddenPractices in common: fund formation, private equity funds

  • Christopher J. Dlutowski

    Morgan, Lewis & BockiusPractices in common: fund formation, private equity funds

  • Samuel Francis

    Vinson & ElkinsPractices in common: fund formation, private equity funds

  • Oren Gertner

    Sidley AustinPractices in common: fund formation, private equity funds

Questions about Matthew H. Leighton

What does Matthew H. Leighton work on?

Simpson Thacher & Bartlett’s bio of Matthew H. Leighton leads with fund formation, and also lists private equity funds, private credit funds, real estate funds, infrastructure funds and hedge funds and 1 more. It says Matthew H. Leighton acts for sponsors (GPs).

Where is Matthew H. Leighton based?

In Simpson Thacher & Bartlett’s New York office.

How long has Matthew H. Leighton practised?

Since 2014, 12 years, going by the bio (admitted in New Jersey, 2014).

Where did Matthew H. Leighton study?

Cornell Law School, Cornell University Johnson Graduate School of Management and Cornell University.

Where is Matthew H. Leighton admitted to practise?

The bio lists New York and New Jersey.

How can I contact Matthew H. Leighton?

Through the bio page on stblaw.com. FundOpsHQ does not publish email addresses or phone numbers.