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Paul, Weiss, Rifkind, Wharton & Garrison LLP

Work +1 212 373 3000
Fax +1 212 757 3990
Beijing, Hong Kong, London, New York, Tokyo, Toronto and 2 more

Richard A. Rosen

Work 212-373-3305
Paul, Weiss, Rifkind, Wharton & Garrison LLP

Work Department

Litigation, Financial Institutions, Insurance, Internal Investigations, M&A Litigation, Securities Litigation



J.D., Harvard Law School, 1978 magna cum laude; B.A., Brown University, 1975 magna cum laude, Phi Beta Kappa

United States: Dispute resolution

Financial services litigation

Within: Financial services litigation

Recognized by one client as the β€˜ne plus ultra’ of financial services litigation practices, Paul, Weiss, Rifkind, Wharton & Garrison LLP has a β€˜well-established reputation’ representing a broad array of financial services clients facing reputation threatening agency enforcements/investigations and private litigation. β€˜Excellent’ team head Brad Karp continues to represent Citigroup across a range of private litigation and regulatory enforcement/investigations including in disputes relating to its RMBS exposure. Recent successes for the bank include successfully resolving the multi-year, multi-agency global AML investigation and successfully securing dismissal by the appellate court in a high-profile precedent-setting $800m holder claim brought against it. The firm has also been involved in numerous market manipulation cases and as well as its high-profile work for Deutsche Bank in Libor matters, also represents Bank of Tokyo-Mitsubishi UFJ (BTMU) as one of the defendants in a putative class action alleging forex rigging. Praised for his β€˜prodigious work ethic and practical business sense’, the β€˜world class’ Daniel Kramer has vast experience acting for financial services entities in litigation and agency investigations, and has recently handled numerous high-profile insider trading matters, including the representation of SAC Capital and Steve Cohen in one of the biggest civil insider trading cases ever filed. Richard Rosen and Bruce Birenboim are also recommended.

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M&A litigation: defense

Within: M&A litigation: defense

Paul, Weiss, Rifkind, Wharton & Garrison LLP is β€˜a premier firm for M&A defense, highly respected and very professional’ and clients praise the litigators for β€˜their vigor, their insight and their experience’. Stephen Lamb in Wilmington, who served as Vice Chancellor in the Delaware Court of Chancery, is one of the firm’s β€˜truly exceptional lawyers’ along with New York partners Geoff Chepiga, Richard Rosen, Andrew Gordon and Daniel Toal. Chepiga and Toal successfully resolved several cases for Air Methods Corporation arising from its $2.5bn sale to affiliates of American Securities LLC, in which shareholders challenged the going-private transaction. Lamb and Gordon were part of a large team that acted for the defendants in one of the most closely watched M&A litigation suits of 2017, which concerned the $5.3bn acquisition of medical diagnostic company Alere by Abbott Laboratories. Abbott filed suit against Alere in an attempt to terminate the deal but the final settlement saw the transaction conclude for a slightly reduced price per share.

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Securities litigation: defense

Within: Leading lawyers

Richard Rosen - Paul, Weiss, Rifkind, Wharton & Garrison LLP

Within: Securities litigation: defense

β€˜Outstanding firm’ Paul, Weiss, Rifkind, Wharton & Garrison LLP in New York is β€˜without peer on all criteria’, according to one client. β€˜Fabulous lawyer’ and firm chair Brad Karp β€˜may be the best lawyer in the US’, says another. β€˜We trust his judgment implicitly’ say clients of Daniel Kramer, who has β€˜great practical business sense, unparalleled legal experience, a prodigious work ethic and a longstanding reputation for both ethical and intellectual integrity’. β€˜Truly exceptional lawyer’ Andrew Ehrlich is β€˜particularly impressive’ and co-chairs the securities litigation group with Susanna Buergel and Audra Soloway. Karp and Buergel scored an appellate victory for Citigroup in an $800m investor claim that alleged fraudulent misrepresentation of its exposure to subprime mortgage assets. Leading light Richard Rosen and Washington DC-based rising star Jane O’Brien succeeded in having the majority of claims against Alere Inc dismissed in cases alleging that the company improperly recognized revenue for subsidiaries in Africa and China, and failed to disclose the need to recall diagnostic products. Geoff Chepiga and Washington DC-based Charles Davidow are also recommended.

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Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to

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