Andrew Keller

Simpson Thacher & Bartlett LLP

Andrew R. Keller is Of Counsel at Simpson Thacher & Bartlett LLP. He has broad experience in corporate finance transactions representing both underwriters and issuers in public and private sales of investment grade and high yield debt securities, initial public offerings, equity-linked offerings and new financial products.

Andy has also advised public companies on ongoing public reporting matters and corporate governance issues. He has represented clients in numerous industries, focusing on real estate, financial institutions and public utilities.

Andy represented Blackstone Real Estate Income Trust, a non-traded REIT, in the launch of its continuous offering and Blackstone Mortgage Trust, a publicly traded REIT, in the re-launch of its mortgage origination business via a $660 million common stock offering. Andy has also advised issuers and underwriters in many debt and equity offerings in the financial, energy and utilities industries, including in offerings for Toronto-Dominion Bank, Noble Corporation and PPL Corporation.

Andy has also represented issuers and underwriters in equity-linked offerings and new financial products, including tracking stocks, convertible debt offerings, equity units, trust preferred securities and mandatorily exchangeable trust securities.

Andy has previously practiced in the Firm’s Hong Kong office, where he represented underwriters and companies in a number of public and private securities offerings and joint ventures and in the formation of private equity funds.

Andy became a Partner at Simpson Thacher in January 1994. He received his B.S. (Chem. Engrg.), summa cum laude, from Lafayette College in 1980 and his J.D. from Columbia Law School in 1983, where he was an Editor of the Columbia Law Review. Andy is a member of the New York State Bar Association and served on the Firm’s Opinion and Compliance Committees.


  • Columbia Law School, 1983 J.D.
    • Columbia Law Review
  • Lafayette College, 1980 B.S.
    • (Chem. Engrg.), Phi Beta Kappa

Associations : New York State Bar Association

Admissions : New York 1985


Rate : $$$

What types of cases Attorney Andrew Keller & Simpson Thacher & Bartlett LLP can handle?
Simpson Thacher & Bartlett LLP can handle cases related to laws concerning Financial Services, Corporate, Real Estate, Energy Utilities & Environmental. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Simpson Thacher & Bartlett LLP located?
Simpson Thacher & Bartlett LLP is located at 425 Lexington Ave, New York, NY 10017, USA. You can reach out to Simpson Thacher & Bartlett LLP using their phone line 212-455-3577. You can also check their website or email them at [email protected].
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Simpson Thacher & Bartlett LLP
Lexington Avenue 425
New York 10017 NY US
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