Jeff Hammel is Co-Chair of Latham & Watkins' New York Litigation & Trial Department, and previously served as Global Co-Chair of the firm's Securities Litigation & Professional Liability Practice for 10 years. He is “acknowledged as one of the most experienced practitioners in the market” according to The Legal 500 US. He regularly represents Fortune 500 companies, financial institutions, boards of directors, and individuals in securities and other complex commercial litigation.

Mr. Hammel has won dozens of shareholder class actions and derivative litigations, as well as other complex commercial cases. Mr. Hammel is co-author of the treatise Federal Securities Litigation, 3d Edition, 2015. 

Mr. Hammel's representative experience includes:

  • IAM Nat’l Pension Fund v. Farfetch Ltd., 2023 WL 2879304 (2d Cir. 2023) – Won affirmance of district court’s dismissal of Securities Exchange Act of 1934 and Securities Act of 1933 claims
  • Salim v. Mobile Telesystems PJSC, 2022 WL 966903 (2d Cir. 2022) – Won affirmance of district court’s dismissal of securities fraud claims alleging misrepresentations concerning a DOJ investigation and related FCPA violations
  • Luongo v. Desktop Metal, Inc., 2023 WL 6142715 (D. Mass. 2023) – Won dismissal of securities fraud claims concerning alleged noncompliance with FDA regulations
  • Quinones v. Frequency Therapeutics, Inc., 2023 WL 2693901 (D. Mass. 2023) – Won dismissal of securities fraud claims against company and senior executives for alleged failure to disclose adverse product testing results
  • Plumbers & Pipefitters Local Union v. Citrix, Systems et al., 2021 Fla. Cir. LEXIS 302 (Cir. Ct. Palm Beach Cty. 2021) – Won dismissal of Securities Act of 1933 claims brought in Florida state court
  • Wasson v. LogMeIn, Inc., 2020 WL 5946813 (D. Mass. 2020), 2021 WL 108021 (D. Mass. 2021) – Won dismissal of securities fraud claims alleging failure to disclose post-acquisition business plans
  • In re Eaton Corp. Securities Litigation, 2017 WL 4217146 (S.D.N.Y. 2017), 318 F. Supp. 3d 659 (S.D.N.Y. 2018) – Won dismissals of two complaints alleging securities fraud claims against Eaton and its senior executives based on alleged non-disclosure of tax consequences of a corporate transaction
  • Friedman v. Endo Pharmaceuticals, 2018 WL 446189 (S.D.N.Y 2018), aff’d, 771 Fed. App’x (2d Cir. 2019) – Won dismissal of securities fraud claims against pharmaceutical manufacturer and its senior executives based on alleged omission of post-acquisition integration issues. Dismissal affirmed by Second Circuit
  • Fries v. Northern Oil & Gas, Inc., 2018 WL 388915 (S.D.N.Y. 2018) and 2018 WL 6493097 (S.D.N.Y. 2018) – Won dismissals of two complaints alleging securities fraud claims against oil company and its executives based on alleged stock manipulation and misuse of company assets
  • Graham v. Fearon et al., (N.D. Ohio 2017), 2017 WL 1113358 (N.D. Ohio 2017), aff'd, 2018 WL 315098 (6th Cir. 2018) – Won dismissal of all ERISA claims against alleged fiduciaries of Eaton Corp. employee stock plan
  • In re OmniVision, Inc. Shareholder Litigation, (Cal. Sup. Ct. Sept. 12, 2016) – Won dismissal of aiding and abetting breach of fiduciary duty claim against JP Morgan as financial advisor in an M&A transaction
  • Dingee v. Wayfair Inc., 2016 U.S. Dist. LEXIS 68322 (S.D.N.Y. 2016) – Won dismissal of securities fraud claims against company and senior executives based on alleged material misrepresentations regarding competitors
  • Callan v. Motricity, Inc., 649 Fed. Appx. 526 (9th Cir. 2016) – Won affirmance of dismissal of Securities Act of 1933 claims against underwriters, including JP Morgan, Goldman Sachs, and Deutsche Bank based on alleged misrepresentations in IPO registration statement
  • Dempsey v. Vieau, 2015 U.S. Dist. LEXIS 119245 (S.D.N.Y. 2015) – Won dismissal of securities fraud claims against executives of a technology company based on alleged failure to disclose product defects and customer sales issues
  • Dudley v. Haub, 2013 U.S. Dist. LEXIS 61386 (D.N.J. 2013) – Won dismissal of securities fraud claims against private equity firm and its chairman relating to bankruptcy of A&P supermarket chain
  • In re A123 Systems, Inc. Securities Litigation, 2013 WL 987830 (D. Mass. 2013) – Won dismissal of securities fraud claims against manufacturer of electric vehicle batteries following disclosure of high profile product defect and costly product replacement campaign
  • In re Herald, Primeo & Thema Funds Securities Litigation, 2011 WL 5928952 (S.D.N.Y. 2011) – Won dismissal of all claims in Madoff-related litigation
  • In re Omnicom Group Inc. Securities Litigation, 597 F.3d 501 (2d Cir. 2010) – Won summary judgment on securities fraud claims, which was affirmed by the Second Circuit, establishing important “loss causation” precedent regarding the events affecting stock price that can support a claim for securities fraud
  • In re Fannie Mae 2008 Securities Litigation, 742 F. Supp. 2d 382 (S.D.N.Y. 2010) – Won dismissal of virtually all securities fraud claims against Fannie Mae following its placement into federal conservatorship during the financial crisis
  • In re Fannie Mae 2008 Securities Litigation, 2009 WL 4067259 (S.D.N.Y. 2009) – Won dismissal of Section 12(a)(2) and 15 claims against Fannie Mae, as well as against more than a dozen underwriters

Bar Qualification

  • New York

Education

  • JD, Columbia University School of Law, 1996
  • AB, Dartmouth College, 1991