Mr Gary Horowitz > Simpson Thacher & Bartlett LLP > New York, United States > Lawyer Profile

Simpson Thacher & Bartlett LLP
NEW YORK, NY 10017-3954
United States

Work Department

Corporate/Mergers and Acquisitions


Corporate Partner concentrating on M&A for private equity firms and corporations, and joint ventures, with an emphasis on asset management, insurance, healthcare and media. Advises corporations and appears before their boards regarding general corporate, disclosure and corporate governance matters. Represents Kohlberg Kravis Roberts & Co., Dillards, Axis Financial, Sterling Partners, CNO Financial, Virtus and The Carlyle Group.


Joined firm, 1982; Partner, 1989.


Cornell University (B.S., 1978); Columbia Law School (J.D., 1981), Harlan Fiske Stone Scholar, Columbia Law Review, Editor, 1980-81.

Lawyer Rankings

United States > Industry focus > Insurance: non-contentious

Focusing on M&A, capital markets  and corporate management advice for large insurance companies, Simpson Thacher & Bartlett LLP operates in the P&C, life and annuity, health, brokerage and third-party areas in the sector. Private equity specialist Gary Horowitz advised on the $6.7bn sale of Sedgwick to a consortium led by Carlyle, while he also acted for JP Morgan Securities as financial advisor to Validus in relation to its $5.56bn acquisition by AIG. Senior counsel Steven DeLott, meanwhile, advised a group of underwriters, led by Barclays Capital, on Willis North America’s $1bn senior notes offering. Both lawyers are based in New York.

United States > M&A/corporate and commercial > Private equity buyouts

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Gary Horowitz

Simpson Thacher & Bartlett LLP

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Gary HorowitzSimpson Thacher & Bartlett LLP

Simpson Thacher & Bartlett LLP has an illustrious reputation in the private equity industry, thanks in part to its long-standing relationships with the likes of Blackstone, KKR and Silver Lake Partners, as well as other managers such as EQT Partners, Centerbridge Partners, KSL Capital Partners and New Mountain Capital. It has worked on many of the biggest, most complex and headline-grabbing deals of the last decade and maintained this record in 2018 when it advised a Blackstone-led consortium on completing a partnership agreement with Thomson Reuters for Thomson Reuters’ Financial & Risk Business (F&R); the consortium now owns 55% of new company created to hold the F&R business. Marni Lerner heads the private equity group and remains a frequent adviser to KKR, including on its $9.9bn acquisition of Envision Healthcare. Gary Horowitz, another key relationship partner for KKR, is ‘very practical‘ and ‘gets to the finish line really quick without any unnecessary noise‘.  Wilson Neelydeserves the accolades‘ and remains close to Blackstone, while Palo Alto partner and ‘really senior practitionerRichard Capelouto is a regular counsel to Silver Lake and Hellman & Friedman. Anthony Vernace  is ‘a really talented lawyer‘. All partners are based in New York, unless stated otherwise.