
Intellectual Property
Privacy and Cybersecurity
Technology
Corporate
Litigation
Artificial Intelligence
Lori E. Lesser is a Partner at Simpson Thacher & Bartlett in New York City, where she leads the Intellectual Property Practice and co-chairs the Privacy and Cybersecurity Practice. With extensive experience in intellectual property, technology, privacy, and cybersecurity law, Lori advises on corporate transactions, litigation, licensing, and strategic agreements. Her clients span various industries, including media, technology, pharmaceuticals, and consumer products. Recognized by Chambers USA and The Legal 500, Lori is celebrated for her practical guidance and deep expertise. She has been named “Privacy & Data Protection Lawyer of the Year” and is a frequent lecturer on IP and AI topics.
M&A Transactions

- Freedom Mortgage Holdings LLC entered into financing with J.P. Morgan Securities LLC in a financing on not available. - Deal value was 1300000000 Sector: Financial Services; Location: USA. - On the acquirer side, counsel was not available; lawyers included John C. Ericson, Patrick Baron, Erin Camia, Michael Mann, Kris Liu, Lori Lesser, Pasco Struhs, Jennie Getsin.
Nov 02 2025
1B
Finance
Partner
2016 – Unknown
Partner, Head of IP Group and Co-Head of Privacy/Cybersecurity Group
1996 – 2016
Associate
1995 – 1996
Associate
1993 – 1995


- Francisco Partners acted as the acquirer in this Acquisition transaction. - The acquisition was executed in the Technology sector, strengthening the buyer’s strategic position. - The transaction was announced on 2025-10-29 00:00:00 with a reported value of 22000000000.
Oct 29 2025
2B
Private Equity
Reporter
1988 – 1990
Reporter
1987 – 1987