

Qualified in Washington DC (US) & Virginia (US) & New York (US), 2006
Partner for 16 years
Intellectual Property
Mergers and Acquisitions
Life Sciences
Corporate
Kristen Olvera Riemenschneider is a Partner at Freshfields in Washington, DC. She specializes in representing life sciences companies in significant transactions, including strategic license and collaboration agreements, and provides specialist M&A support. Kristen is nationally recognized for her expertise in counseling companies engaged in US Government-funded research and development. She has played a pivotal role in agreements for the development and delivery of COVID-19 vaccines. As a registered patent attorney, Kristen is also adept in intellectual property matters. Her extensive experience includes working with high-profile clients such as AbbVie, AstraZeneca, and Moderna.
Strategic Collaborations and Licensing
Mergers and Acquisitions (M&A)
Healthcare and Life Sciences Initiatives
Government and Regulatory Agreements

- Sanofi S.A. acquired the target/assets from Vigil Neuroscience, Inc. in a acquisition on not available. - Deal value was 2200000000 Sector: Biotechnology; Location: USA. - On the acquirer side, counsel advised, led by Brock Dahl, Christine Lyon, Jenny Hochenberg, Jonathan Zhou, Kristen Riemenschneider, Mary Lehner, Nicole Foster, Sarah Katz, Steven Matays.
May 22 2025
2B
M&A

Partner
2021 – Unknown

Partner
2007 – 2021
Law Clerk
2006 – 2007

- Grünenthal acted as the acquirer in this Acquisition transaction. - The acquisition targeted assets operating in the Pharmaceuticals sector. - The transaction was announced on 24 Jul 2024 with a reported value of 2500000000.0.
Jul 24 2024
250M
M&A
1 min
Electrical Engineer
2001 – 2003