Hall Of Fame

M&A litigation: plaintiff in United States

Kessler Topaz Meltzer & Check, LLP

Kessler Topaz Meltzer & Check, LLP specializes in the prosecution of securities class actions, shareholder claims, and antitrust litigation for government and private sector clients. The team has represented investors against Coinbase Global, Inc. in a shareholder class action suit since 2022, and has recently secured a $362.5 million settlement in a shareholder class action suit against General Electric. Spearheading the practice is Daniel Albert, who represents clients in shareholder litigation and recovers substantial damages on behalf of shareholders. Fellow co-head Lee Rudy handles transactional and derivative cases for institutional and individual shareholders, while co-head Eric Zagar prosecutes cases involving claims against corporate officers and directors. They are joined by Grant Goodhart, who assists institutional and individual shareholders in obtaining significant financial recoveries. All lawyers are based in the firm’s main office in Radnor, Pennsylvania.

Responsables de la pratique:

Lee Rudy; Eric Zagar; Daniel Albert


Autres avocats clés:

Grant Goodhart


Principaux clients

Sjunde AP-Fonden


SEB Investment Management AB


AMF Pensionsförsäkring AB


E. Öhman J:or Fonder AB


Stichting Pensioenfonds PGB


Norges Bank Investment Management


Heat & Frost Insulators Local 12 Funds


Public Employees’ Retirement System of Mississippi


British Airways Pension Trustees Limited


Key West Police & Fire Pension Fund


Ironworkers Locals 40, 361 & 417 Union Annuity, Pension and Topping Out Funds


Akademikernes Pensionskasse


Ohio Public Employees Retirement System


Carmignac Gestion


Police and Fire Retirement System of the City of Detroit


The Trustees of the Local 464A United Food & Commercial Workers Union Welfare Service Benefit Fund; The Trustees of the Welfare and Pension Funds of Local 464A


Ruth Asset Management


Oklahoma Firefighters Pension and Retirement System


Principaux dossiers


  • Representing minority stockholders of SCUSA, KTMC litigated claims that Santander opportunistically timed its take-private deal to capture the company’s post-pandemic earnings boom.
  • Represented Discovery stockholders and litigated claims that Advance/Newhouse improperly extracted preferential consideration by threatening to block the WarnerMedia merger.
  • Represented a client in a challenge to IAC’s 2020 separation of Match Group, securing a landmark Delaware Supreme Court decision holding that all special-committee directors must be independent to obtain MFW protection and that entire-fairness review broadly applies to controller transactions.

Labaton Keller Sucharow LLP

Labaton Keller Sucharow LLP maintains a strong position in the market for shareholder advocacy cases before the Delaware Court of Chancery. The team has successfully achieved governance reforms and monetary settlements for shareholders and handles matters involving corporate fraud and misconduct. Practice head Ned Weinberger, who is based in Wilmington, specializes in investor advocacy in Delaware and secured a $125 million settlement representing former shareholders of Discovery Inc. Fellow co-head Jonathan Gardner is based out of New York. They are joined by Wilmington-based Mark Richardson, who advises shareholders in corporate governance and transactional matters, including a class action challenging a self-interested acquisition of Pattern Energy Group Inc. by the Canada Pension Plan Investment Board. Brendan Sullivan, who is also based in Wilmington, handles recoveries and reforms on behalf of investors, including a $1 billion cash settlement for former Dell stockholders.

Responsables de la pratique:

Ned Weinberger; Jonathan Gardner


Autres avocats clés:

Mark Richardson; Brendan Sullivan


Les références

‘The Labaton team is exceptional in every way. Motivated, hardworking, brilliant, experienced, and strategic.’

‘Ned Weinberger leads the team as well as anyone in the stockholder plaintiffs’ bar.’ 

‘The entire group is excellent, but Ned Weinberger, Mark Richardson and Brendan Sullivan are particularly exceptional. They are the next generation of truly elite Delaware practitioners, and have incredibly bright futures ahead of them.’  

Principaux clients

Steamfitters Local 449 Pension Plan


Public Employees’ Retirement System of Mississippi


Nantahala Capital Partners II Limited Partnership


Massachusetts Laborers’ Pension Fund


Cambridge Retirement System


Employees’ Retirement System of Rhode Island


Bricklayers Pension Fund of Western Pennsylvania


Teamsters Local 443 Health Services & Insurance Plan


Merseyside Pension Fund


Teamsters Local 710


Principaux dossiers


  • Representing Steamfitters Local 449 Pension Plan, Labaton Keller Sucharow achieved the historic $1 billion cash settlement just weeks before trial.
  • Representing Bricklayers Pension Fund of Western Pennsylvania, Labaton Keller Sucharow achieved a $125 million settlement on behalf of former shareholders of Discovery, Inc. in connection with Discovery’s $43 billion purchase of AT&T. Inc.’s WarnerMedia business.
  • Representing The Ontario Provincial Council of Carpenters’ Pension Trust Fund, Labaton Keller Sucharow achieved a $123 million settlement and corporate governance reforms representing shareholders of Walmart Inc. in a dispute in connection with the Company’s prescription opioid business.

Grant & Eisenhofer P.A.

Grant & Eisenhofer P.A. represents public and private clients in litigation arising under Delaware law, including advocating for the rights of shareholders and enforcing fiduciary responsibilities. The team also advises on ESG considerations and socially responsible investments. Spearheading the practice out of Wilmington is practice head Michael Barry, who represents institutional investors in class action recoveries, corporate governance reforms, and shareholder rights litigation. He is joined by New York-based co-head Jay Eisenhofer, who organizes cases on behalf of investors, leading to substantial recoveries, while Wilmington-based co-head Christine Mackintosh handles corporate cases in the Delaware Court of Chancery and securities fraud class actions. Rebecca Musarra is geared to handle corporate governance and consumer protection litigation. Kelly Tucker specializes in environmental, consumer, and securities litigation, and Vivek Upadhya advises on complex pharmaceutical and medical device-related appraisal and whistleblower litigation cases. These lawyers are all based in Wilmington.

Responsables de la pratique:

Jay Eisenhofer; Michael Barry; Christine Mackintosh


Autres avocats clés:

Rebecca Musarra; Kelly Tucker; Vivek Upadhya


Les références

‘Excellent practice.’

Principaux dossiers


  • Represented a Gores Holdings IV LLC stockholder in an SPAC merger that settled for $17.5 million.
  • Assisted as co-lead counsel for investors in Latch, Inc. in a SPAC merger, leading to a $29.75 million settlement.
  • Advised as co-lead counsel in a case against Weber Inc. related to a $3.7 billion squeeze-out, resulting in a $19.25 million settlement.

Brown Rudnick LLP

Brown Rudnick LLP specializes in representations and warranties insurance claims in both domestic and foreign arbitral forums. The team advises on major post-closing M&A disputes and bet-the-company litigations. Practice head Dylan Kletter is based in New York and handles both plaintiff and defense side work, representing private equity firms, venture capital companies, family offices, activist investors, and strategic acquirers. Hartford-based co-head Mark Baldwin represents healthcare providers in actions asserting claims for fraud, mismanagement, and corporate misconduct. Another key team member is Meghan McCafferty, who is based in Boston.

Responsables de la pratique:

Dylan Kletter; Mark Baldwin


Autres avocats clés:

Meghan McCafferty


Les références

‘They are far and away the most knowledgeable, strategic, and capable group.’

‘Smart, patient yet relentless, calculating, and in the end victorious, driving an unbelievable settlement that avoided excessive time and costs. Got 3X what another firm suggested I settle for.’ 

‘Dylan Kletter – Just phenomenal all around and the guy you want representing you, both in dealing with the counter party and advising you along the way.’ 

Principaux clients

Patrick Flannery, co-founder and former CEO of market data provider MayStreet


Spay d/b/a/ Stack Sports


MIB Group


T. Gray Utility


Lupin Pharmaceuticals


Wright Place Partners


Principaux dossiers


  • Representing Patrick Flannery, co-founder and former CEO of market data provider MayStreet in an earnout lawsuit against the London Stock Exchange.
  • Representing SPay, a portfolio company of Genstar Capital, in a dispute over its acquisition of substantially all of the assets of internet media company Stack Media.
  • Represented MIB Group, a member-owned organization that provides data-driven solutions to the insurance industry, in securing a complete victory in an earn out dispute brought by Paperless Solutions Group (PSG), a company that Brown Rudnick helped MIB to acquire.

Greenberg Traurig

Greenberg Traurig, led by Lori Cohen, Phillip Sellinger, William Michael, and Masoud Zabeti specializes in transaction-related disputes related to buyers and sellers in busted deals, breaches of representations and warranties, and derivative claims. The team represents funds, sponsors, publicly traded companies, founders, and entrepreneurs globally. Joseph Mamounas, who is based in Miami, brings experience in M&A, private equity-related disputes, and international arbitration cases, with a focus on Latin America, Spain, and Asia. Sarah Martin, who is based in Wilmington, handles a full range of corporate and commercial litigation matters, including SPACs, incentive compensation plans, FDA reporting, and stock offerings.

Responsables de la pratique:

Lori Cohen; Philip Sellinger; William Michael; Masoud Zabeti


Autres avocats clés:

Joseph Mamounas; Sarah Martin


Principaux clients

Atlas Copco


Delclaux & Partners SA


KSV Global


Onsite Dental LLC and CD Support LLC


Stellex Capital Management


Thompson Street Capital


US Infrastructure


Principaux dossiers


  • Representation of portfolio companies of NorWest Venture Partners in litigation against Cano Health and Dental Excellence Partners concerning a terminated $500 million dental services agreement and subsequent claims of fraud by Cano Health’s former CEO.
  • Representation of a buyer of a carve-out business in indemnification claims and recovery of $21 million from an R&W insurer following breached representations and warranties, and subsequent litigation.
  • Representation of Stellex Capital Management in a representations and warranties insurance claim arising from its $95 million acquisition of RTC Aerospace LLC, resulting in recovery of the $10 million full policy limit.

Robbins Geller Rudman & Dowd LLP

Robbins Geller Rudman & Dowd LLP offers clients extensive trial experience, representing plaintiffs in securities fraud, antitrust, breach of fiduciary duty, consumer fraud, and privacy cases. The team is jointly led by Randall Baron, who is based in San Diego, and Wilmington-based Christopher Lyons. Baron specializes in securities litigation, corporate takeover litigation, and breach of fiduciary duty matters, including obtaining a partial settlement of $60 million for the stockholders of Tesla alleging fiduciary breaches by the board. Lyons advises institutional and individual investors in merger-related class action and securities litigation. San Diego-based David Knotts focuses on securities class action litigation in the context of M&A deals. Another key member of the team is New York-based Chad Johnson.

Responsables de la pratique:

Randall Baron; Christopher Lyons


Autres avocats clés:

David Knotts; Chad Johnson


Principaux dossiers


Selendy Gay PLLC

Selendy Gay PLLC‘s litigation practice advises clients across the life sciences, healthcare, private equity, and financial services industries on high-value M&A, corporate governance, and post-closing disputes. The team provides support to clients on both the plaintiff and defense sides. Practice head Philippe Selendy brings over 30 years of experience litigating complex deals and financial disputes, while Jennifer Selendy handles a wide range of disputes spanning post-closing earn-out cases, creditors’ rights matters, and liability-management transactions. Fellow co-head Sean Baldwin has expertise in trying cases in the New York courts, Delaware Court of Chancery, and commercial arbitration. They are joined by David Flugman, who focuses on post-closing M&A disputes.

Responsables de la pratique:

Philippe Selendy; Jennifer Selendy; Sean Baldwin


Autres avocats clés:

David Flugman


Principaux clients

Fortis Advisors LLC


Albertsons Companies


UMB Bank, N.A.


Trifecta Multimedia Holdings


Former holders of warrants in QuarterNorth Energy, Inc.


Principaux dossiers


  • Represented Fortis Advisors LLC in its capacity as the representative for former shareholders of Auris Health, Inc., in a merger earn-out dispute with its acquiror, Johnson & Johnson.
  • Advised Albertsons Companies, Inc., as co-counsel, in a $6 billion lawsuit in December 2024 for Albertsons against Kroger arising out of Kroger’s failure to exercise required efforts to secure regulatory approval for the merger of these two national grocery store chains.