
Leveraging a deep bench of trial and appellate lawyers, Simpson Thacher & Bartlett LLP is well-equipped to represent a myriad financial services entities and blue-chip corporates in big-ticket securities litigation/derivative shareholder matters, in many cases often also involving complex parallel government investigations/enforcements. The scope of the work is broad, including 10b-5 and section 11 cases, as well as M&A litigation and more general corporate governance-related disputes. Vastly experienced team head Jonathan Youngwood is as comfortable acting for large public companies (including within the media and entertainment field) facing down potentially financially ruinous securities fraud class action allegations and on ERISA stock drop litigation, as he is for underwriter banks in the aftermath of IPOs. As well as a vibrant securities litigation and derivative shareholder practice for corporates from a range of industry sectors, Craig Waldman also has tangential expertise regarding litigation arising from strategic and financial sponsor-led transactions. Lynn Neuner, who co-heads the overarching litigation group alongside Youngwood, is also a skilled trial lawyer, with many of her cases falling in the securities litigation ambit. Palo Alto-based Stephen Blake is also a highly proficient securities class action litigator (in relation to conventional public IPOs as well as with regard to SPACs), whose expertise not only covers private litigation but also overlapping SEC regulatory enforcement/investigations. All named practitioners are based in New York unless otherwise indicated.
L'éditorial du Legal 500
- Profil
Clients clés
- Alibaba Group Holding Ltd
- Allakos Inc.
- Bausch Healthcare (f/k/a Valeant Pharmaceuticals)
- The Blackstone Group
- Bumble
- Deutsche Bank
- J.P. Morgan Chase & Co.
- Kohlberg Kravis Roberts & Co.
- Micron Technology, Inc.
- Morgan Stanley & Co. Inc.
Points forts
- Won a major appellate reversal on behalf of more than a dozen investment banks in Archegos litigation, substantially limiting underwriter due diligence obligations.
- Defeated class certification on behalf of M&T Bank Corp. in post-closing litigation relating to M&T Bank’s acquisition of Hudson.
- Secured dismissal of a federal securities class action on behalf of Bright Health.
Avocats
Hall of Fame
Avocats au sommet de leur profession, largement reconnus et respectés par l'ensemble du marché pour leur expertise éprouvée et leur intervention récurrente et longue date dans les dossiers les plus complexes et prestigieux.

Les grands avocats du marché
Avocats associés reconnus parmi les leaders du marché par leurs pairs et leurs clients, régulièrement présents dans les grands dossiers dans lesquels ils sont au premier plan.
Les grands avocats de demain
Jeunes associés disposant d'une reconnaissance montante sur le marché, jouant régulièrement un rôle clé dans des dossiers majeurs.
Stephen Blake
Responsable de la pratique
Jonathan Youngwood
Autres avocats clés
Lynn Neuner; Stephen Blake; Craig Waldman; Meredith Karp