Sara Raisner

Sara Raisner


Sara focuses on regulatory examination and enforcement matters, internal investigations, and securities-related disputes. She regularly represents financial institutions, hedge funds, and public companies before the SEC, FINRA, CFTC, New York Office of Attorney General, DOJ and other regulators.

Sara is a leader in the firm’s SPAC regulatory and litigation practice, following a secondment to a large financial institution during which she worked closely with its senior team on SPACs. Sara also has significant experience advising clients in Mexico, Brazil and Chile and is as a member of the firm’s dedicated Lat-Am team. Sara also serves on the A&O Shearman Women Council and on the firm’s Recruiting Committee and Women Partners Committee.

Sara previously served as a director with the Financial Industry Regulatory Authority (FINRA), where she led a team of enforcement attorneys and investigators on regulatory matters involving securities fraud, suitability, anti-money laundering surveillance, operational failures, and other violations of federal securities laws.

Before joining FINRA, Sara was an associate at a global law firm where she represented financial institutions in civil litigation, SEC enforcement matters, and internal investigations.


Representative matters

Regulatory and Investigations

Several global financial institutions in connection with off-channel communications investigations by the SEC and CFTC.

Several financial advisory firms in SPAC-related investigations by the SEC, DOJ and FINRA.

A large financial institution in connection with a FINRA investigation concerning whistleblower allegations.

Pro bono

Sara is a member of Abogadas MX, a non-profit organization dedicated to the advancement of women in the legal sector in Mexico.

Published Work

Speaking Engagements

  • SIFMA C&L Annual Seminar, 2024


  • “40 & Under List”, Benchmark Litigation, 2022, 2023



New York, 2010


United States District Court for the Southern District of New York, 2010

United States Court of Appeals for the First Circuit, 2012

United State District Court for the Eastern District of New York, 2024


B.A., summa cum laude, City University of New York, Queens College, 2006
– Queens College Presidential Honors Award
– Phi Beta Kappa

J.D., New York University, 2009
– Editorial Managing Editor, Journal of Legislation and Public Policy


Hebrew, Spanish
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.