Ali Olsewski


Alassandra Olsewski
Ali Olsewski is an associate in Weil’s Securities Litigation practice. She focuses on defending securities class action, shareholder derivative, and M&A litigation. Her practice also includes advising public companies regarding corporate governance and conducting internal investigations.

Ali’s recent experience includes serving on Weil teams representing:

  • The Carlyle Group in a seminal business litigation in Delaware Chancery Court arising out of the triggering of a material adverse effects clause in a purchase agreement in the wake of the COVID-19 pandemic.
  • J.C. Flowers & Co., a private equity fund, in a federal securities fraud litigation relating to alleged misstatements concerning a portfolio company’s asset sale.
  • Sasol Ltd. and its senior executives in a securities class action relating to the construction of a multi-billion dollar chemical plant in Louisiana.
  • Willis Towers Watson in multi-jurisdictional securities litigation arising out of the $18 billion “merger of equals” between Willis Group and Towers Watson in 2016.

Ali also has an active pro bono practice, including representing victims of domestic violence in applying for green card status under the Violence against Women Act, as well as representing a professor and academic researcher from UT Austin in a FOIA suit against the FBI.  

Ali received her B.A. from Cornell University and her J.D. from Georgetown University Law Center, where she served as a legal research and writing fellow, a semester extern at the United States Department of Justice – Office of Vaccine Litigation, and a Student Attorney in the Health Justice Alliance Clinic, where she represented a family through custody and special education proceedings.

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