Mark Lamar Stoneman
Armstrong Teasdale LLP • Saint Louis, MO
Mergers & Acquisitions Life Sciences & Biotechnology Business
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Contact
Email
mstoneman@atllp.com
Phone
Address
Saint Louis, MO, US
Professional
About
Mark Lamar Stoneman is a seasoned attorney at Armstrong Teasdale LLP, located at the heart of Saint Louis, Missouri. With an impressive tenure spanning nearly three decades, Mark has solidified his reputation as a leading authority in the realms of Mergers & Acquisitions, Life Sciences & Biotechnology, and Business law. His strategic acumen and meticulous attention to detail make him an invaluable asset to clients navigating complex legal landscapes. Mark's expertise in Mergers & Acquisitions is underscored by his ability to seamlessly guide high-stakes transactions, ensuring each deal aligns with his clients' strategic goals. His proficiency in Life Sciences & Biotechnology law is complemented by a deep understanding of the intricate regulatory frameworks that govern these innovative sectors. Mark's business law practice is characterized by his commitment to providing pragmatic, results-oriented advice, empowering businesses to thrive in today's competitive market. Committed to his clients' success, Mark approaches each case with a personalized strategy, prioritizing open communication and collaboration. His dedication to delivering exceptional legal counsel has earned him the trust and respect of a diverse clientele, ranging from burgeoning startups to established corporations. At Armstrong Teasdale LLP, Mark Lamar Stoneman continues to drive excellence, leveraging his extensive experience and industry insights to navigate the ever-evolving legal challenges faced by his clients.
Credentials
Education
2002 University of Missouri MA - Masters 1996 University of Missouri School of Law JD - Juris Doctor 1993 University of Missouri BS - Bachelor of Science
Languages
English
Recognition & Involvement
Awards
2017 AV Rated, Martindale-Hubbell 2013 The Best Lawyers in America, Corporate Law, Woodward/White, Inc. 2012 Corporate Law/Mergers & Acquisitions, Chambers USA: America's Leading Lawyers for Business 2011 Corporate/Mergers and Acquisitions, Chambers USA: America's Leading Lawyers for Business 2011 Super Lawyer: Mergers & Acquisitions, Missouri & Kansas Super Lawyers Magazine
Publications
2012 American Bar Association Understanding the Use of Financial Accounting Provisions in Private Acquisition Agreements 2006 ABA publication "Company Formation" Chapter, Biotechnology and the Law 2005 Missouri Bar Association "Financing the Business" Chapter, Corporate Organization and Operation 1998 Missouri Bar Association "Financing the Business" Chapter, Missouri Business Organizations
Associations
Missouri Bar, Business Law Committee Member Missouri Bar, Property Law Committee Member Illinois State Bar Association Member American Bar Association, Business Law Section Member American Bar Association, Real Property, Trust and Estate Law Section Member
Speaking
2012 ABA Annual Meeting, Chicago, Illinois Understanding the use of Financial Accounting Provisions in Private Acquisition Agreements 2009 National Business Institute, national broadcast Financial Accounting Provisions in M&A Transactions 2008 National Business Institute How to Draft the LLC Agreement
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Updated: Jun 02, 2026