
Intellectual Property
Mergers and Acquisitions
Life Sciences
Jeff Jay is a Partner at Freshfields in New York City, specializing in transactional law within the life sciences sector. With a robust background in intellectual property and mergers and acquisitions, Jeff advises multinational pharmaceutical companies, biotechs, and private equity firms on strategic transactions, including complex licensing and collaboration agreements. His career began as a patent litigator, and he leverages this experience to provide comprehensive legal solutions. Jeff's practice is characterized by his involvement in high-profile deals and collaborations, making him a trusted advisor in the life sciences ecosystem.
Licensing & Collaboration Transactions
M&A Transactions

- SERB Pharmaceuticals acquired the target/assets from Charterhouse Capital Partners in a take-private transaction. - Deal value was 2900000000 Sector: Life Sciences; Location: USA. - On the acquirer side, legal advice was provided by a team including Paul Humphreys, Sebastian Fain, Jeff Jay, Wicy Wang, Sahara Baker, Arash Ardalan, Simon Trisk, Ben Cohen, Dr. Zackory Burns, Juliana Zhang, Wolfgang Paulson, Lori Goodman, Jordan Salzman, Jordan Riley, Aled Batey, Richard Daniels, Christina Banz, Kelsey Pepper, Michael Levitt, Stephanie Brown Cripps, Young Park, Christine Chong.
Aug 05 2025
3B
Private Equity

Partner
2025 – Unknown
Counsel
2023 – 2025
Senior Associate
2021 – 2023
Senior Associate
2019 – 2021
Associate

- Camurus entered into a Collaboration and License Agreement with Eli Lilly as part of a transaction (date: not available). - Deal value was 870000000 (source: Extracted) Sector: Pharmaceuticals; Location: Global. - On the seller side, legal advisers were not available; lawyers on the seller side included Adam Golden, Jeff Jay.
Jun 06 2025
870M
M&A
Apr 20

1 min
2016 – 2019
Associate
2014 – 2016
Law Clerk
2012 – 2014