Mario Ponce

Simpson Thacher & Bartlett LLP

Mario A. Ponce is a Partner in the Firm’s Corporate Department and serves as Co-Head of the Mergers and Acquisitions Practice and a former member of the Executive Committee. His practice focuses on negotiated and hostile merger and acquisition transactions, proxy contests, restructurings, joint ventures and securities laws. He regularly represents strategic clients, investment banks and private equity firms. Mario also advises boards on corporate governance matters, fiduciary duties and shareholder activism.

Mario’s clients have included Allegion plc, Alpharma, Inc., American Electric Power, Aramark Corporation, Arch Coal, Beazer Homes, Becton Dickinson, C.R. Bard & Co., Consolidated Edison, Eaton Corporation, Emerson Electric Co., General Instrument Corporation, Georgia Pacific Corporation, Goldman, Sachs & Co., Ingersoll-Rand Corporation, JPMorgan Chase & Co., Keyspan Corporation, KKR & Co., Lazard Frères & Co., MCI Inc., Newell Rubbermaid, Owens & Minor Inc., Office Depot, PPL Corporation, SBA Communications Corp., Teleflex Incorporated, Walgreens Boots Alliance, Willamette Industries, Inc. and Xerox Corporation.

Mario recently represented

  • Krispy Kreme Doughnuts in its $1.35 billion sale to JAB Holding;
  • ITC in its $11.3 billion acquisition by Fortis;
  • Walgreens Boots Alliance in its purchase of 1,932 Rite Aid Corporation stores for $4.157 billion; Office Depot with respect to its proposed merger with Staples, Inc.;
  • PPL Corporation regarding its spin-off of Talen Energy and merger of Talen with affiliated entities of Riverstone Holdings;
  • Ingersoll-Rand in connection with the appointment of Nelson Pelz to the Ingersoll Board of Directors and the spin-off of Allegion plc, Ingersoll-Rand’s security businesses;
  • Emerson Electric Co. regarding the disposition of its embedded computing and power business to Platinum Equity;
  • Office Depot with respect to its merger of equals transaction with OfficeMax; and
  • Teleflex Incorporated concerning its acquisition of LMA International NV.

In recent years, some of his high-profile matters included the representation of

  • Eaton Corporation in its acquisition of Cooper Industries PLC; Arch Coal, Inc., with respect to its acquisition of International Coal Group, Inc.;
  • Bowne & Co., Inc. in connection with its merger with R.R. Donnelley & Sons Company;
  • PPL Corporation in its acquisition of Louisville Gas & Electric from E.ON AG.;
  • Kmart Holding Corp. in its merger with Sears, Roebuck and Co.;
  • the going-private transaction of Aramark Corporation;
  • Xerox Corporation in connection with its acquisition of Affiliated Computer Services, Inc.; and
  • Ingersoll-Rand Corporation with respect to its acquisition of Trane, Inc.

Mario has been engaged in many significant defense matters, including

  • the defense of Alpharma Inc. in connection with the hostile tender offer initiated by, and subsequent merger with, King Pharmaceuticals, Inc.;
  • WCI Communities, Inc., regarding its defense of a proxy contest and hostile tender offer initiated by affiliates of Carl Icahn;
  • Nautilus Inc. in its proxy fight with Sherborne Investors;
  • Willamette Industries, Inc., with respect to the hostile offer and proxy contest initiated by Weyerhaeuser Company; and
  • Kemper Corporation in its defense of the hostile offer launched by General Electric Capital Corporation.

Mario received his B.A., summa cum laude and Phi Beta Kappa, from the University of Richmond in 1984 and his J.D. with honors from Duke Law School in 1988. He serves on the Board of Visitors of Duke Law School and lectures frequently on topics relating to his professional interests.


  • Duke University School of Law, 1988 J.D.
    • With Honors
  • University of Richmond, 1984 B.A.
    • summa cum laude; Phi Beta Kappa

Admissions : New York 1989


Rate : $$$

What types of cases Attorney Mario Ponce & Simpson Thacher & Bartlett LLP can handle?
Simpson Thacher & Bartlett LLP can handle cases related to laws concerning Corporate, Health Care, Mergers & Acquisitions, Venture capital, 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 212-455-3442. You can also check their website or email them at [email protected].
How much would it cost to hire Simpson Thacher & Bartlett LLP?
Mario Ponce lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
Are Mario Ponce reviews trust-able?
We have the ratings and reviews moderation team who checks and verifies every review submitted on our website manually. You can trust all the reviews you see on Mario Ponce lawyer profile listing.

Rate and write a review

Your email address will not be published. Required fields are marked *

Is this your profile?Claim it now.

Make sure your information is up to date.
Simpson Thacher & Bartlett LLP
425 Lexington Ave, New York, NY 10017, USA
Get directions

Tyler Nicoll

Crosspointe Drive 1019
Naples 34110 FL US

Rick Cofer

West Avenue 1002
Austin 78701 TX US

Brian Orlow

Main Street 71-18
11367 NY US

Lina Stillman

Broadway 42
New York 10006 NY US