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Local Litigation Star

Top 250 Women in Litigation


Practice area:

Commercial
Securities


Karin A. DeMasi is a partner in Cravath’s Litigation Department and serves as the Department’s Managing Partner.  Her practice focuses on complex litigation, including class actions, in federal and state courts, primarily in the areas of securities, derivative, ERISA, antitrust and general commercial disputes.  Ms. DeMasi also represents companies, boards of directors and individuals in connection with SEC and other government inquiries, and shareholder demands.  


Among other matters, Ms. DeMasi is currently representing the Blue Cross Blue Shield Association and various member plans in consolidated multidistrict antitrust class action litigation—one of the largest class actions in the country—alleging that the Association and its members have used the Association’s agreements to fix prices and limit competition.  She recently won dismissal for Florida Blue in antitrust litigation filed by a competitor alleging that Florida Blue’s exclusive agency relationships violated the Sherman Act.


Ms. DeMasi recently won the dismissal of putative securities class action litigation filed against GreenSky and its officers and directors alleging disclosure deficiencies in connection with GreenSky’s initial public offering.  She also secured a favorable settlement for First Solar in a securities class action alleging that First Solar and several of its officers and executives misrepresented the company’s financial state, concealed material facts regarding defective solar modules and committed accounting violations, all to inflate First Solar’s stock price.


Ms. DeMasi devotes a significant portion of her practice to pro bono service.  She is one of the lead partners for Cravath’s relationship with Montefiore Children’s Hospital and Morgan Stanley Children’s Hospital, representing children who need legal services related to their medical care.  


Ms. DeMasi has been recognized by Lawdragon as one of “500 Leading Lawyers in America”, Chambers USA for her work in securities litigation and The Legal 500 US for her work in antitrust, media and entertainment and securities litigation.  She has also been recognized for her litigation work by Benchmark Litigation, including as a “Local Litigation Star” in general commercial and securities litigation.


Ms. DeMasi received a B.S. from Northwestern University in 1993, and a J.D. from the University of Pennsylvania in 1996.  After a clerkship with Hon. D. Brock Hornby of the U.S. District Court for the District of Maine, she joined Cravath in 1997 and was elected a partner in 2004.  


Updated July 2021