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Steve Tonsfeldt

Partner

I work with companies on high-stakes, game-changing deals.

+1 650 843 5967
stonsfeldt@cooley.com

Steven Tonsfeldt represents public and private companies in domestic and cross-border M&A transactions, contested transactions, hostile takeovers and defense planning. He also advises private investors and their portfolio companies on investment and acquisition transactions, and financial advisors working with companies engaged in transactional matters.

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Experience

  • Finicity Agrees to Sell to Mastercard for Up to $985 Million 

  • ArcherDX Agrees to Combine With Invitae in $1.4 Billion Deal 

  • TiVo and Xperi to Combine in $3 Billion All-Stock Merger 

  • Xyphos Biosciences Sells to Astellas Pharma 

  • Instructure Sells to Thoma Bravo for $2 Billion 

  • View all

Practices & Industries
Education

  • University of California, Berkeley
    JD

  • University of Iowa
    BBA, Accounting
    with highest distinction

Admissions & Credentials

California

Media & Insight
Memberships

  • Berkeley Center for Law, Business and the Economy - Advisory Board

  • Certified Public Accountant

Rankings & Accolades

    Who's Who Legal: Thought Leaders – M&A and Governance (2020)

    Chambers USA: Corporate/M&A – Northern California (2002-2020)

    American Lawyer: Dealmaker of the Week

    Best Lawyers in America: Mergers & Acquisitions (2006 – 2019)

M&A Blog

Dynamic thought leadership and newsworthy developments in the global mergers and acquisitions space

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Contact

+1 650 843 5967 office
+1 650 849 7400 fax
stonsfeldt@cooley.com

3175 Hanover Street
Palo Alto, CA 94304-1130

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