David B. Rosenbaum

David B. Rosenbaum


Osborn Maledon PA

Recognized since 2005

Phoenix, Arizona

Practice Areas

Bet-the-Company Litigation

Commercial Litigation

Litigation - Construction

Litigation - Intellectual Property

Litigation - Mergers and Acquisitions

Litigation - Securities

Navigate to map location for David B. Rosenbaum Call David B. Rosenbaum at 602-640-9000
Lawyer of the Year Badge - 2024 - Litigation - Intellectual Property Lawyer of the Year Badge - 2024 - Litigation - Securities Lawyer of the Year Badge - 2021 - Litigation - Securities Lawyer of the Year Badge - 2020 - Litigation - Intellectual Property Lawyer of the Year Badge - 2016 - Bet-the-Company Litigation Lawyer of the Year Badge - 2014 - Litigation - Securities Lawyer of the Year Badge - 2011 - Bet-the-Company Litigation
Spinning circle Big letter B

David's practice focuses on complex commercial litigation in the state and federal courts. David has represented public companies and their officers and directors in numerous securities fraud class actions, represented Fortune 50 companies in a wide range of complex commercial litigation matters, including matters involving intellectual property disputes, represented a major telecommunications company in an array of commercial litigation matters, represented companies in sales and use tax disputes, and represented national and local companies in employment controversies, including class-action discrimination lawsuits. As past President of the Federal Bar Association and Lawyer Representative to the Ninth Circuit Judicial Conference, David has developed knowledge and experience in the finer points of prosecuting complex litigation in the federal courts.

Contact & Links
Location
  • The Phoenix Plaza
    2929 North Central Avenue, Suite 2000
    Phoenix, AZ 85012-2793
Education
  • Georgetown University, J.D., graduated 1983
  • University of Pennsylvania, B.A., graduated 1979
Bar Admissions
  • Arizona, 1984
  • District of Columbia, 1985
Federal Clerkships
  • United States District Court

Osborn Maledon PA
Headquarters: Phoenix, Arizona

30 The Best Lawyers in America® awards

15 Best Lawyers: Ones to Watch® in America awards

Best Law Firms Badge Visit Website View Firm Profile

Lawyer of the Year Badge - 2024 - Litigation - Intellectual Property Lawyer of the Year Badge - 2024 - Litigation - Securities Lawyer of the Year Badge - 2021 - Litigation - Securities Lawyer of the Year Badge - 2020 - Litigation - Intellectual Property Lawyer of the Year Badge - 2016 - Bet-the-Company Litigation Lawyer of the Year Badge - 2014 - Litigation - Securities Lawyer of the Year Badge - 2011 - Bet-the-Company Litigation
Named "Lawyer of the Year" by Best Lawyers® for:
  • Litigation - Intellectual Property, Phoenix (2024)
  • Litigation - Securities, Phoenix (2024)
  • Litigation - Securities, Phoenix (2021)
  • Litigation - Intellectual Property, Phoenix (2020)
  • Bet-the-Company Litigation, Phoenix (2016)
  • Litigation - Securities, Phoenix (2014)
  • Bet-the-Company Litigation, Phoenix (2011)
Recognized in The Best Lawyers in America® 2026 for work in:
  • Bet-the-Company Litigation
  • Commercial Litigation
  • Litigation - Construction
  • Litigation - Intellectual Property
  • Litigation - Mergers and Acquisitions
  • Litigation - Securities
Special Focus:
  • Civil Litigation
  • Class Actions
  • Commercial Disputes
  • Complex Litigation
  • COVID-19
  • Defendants
  • Intellectual Property
  • SEC Enforcement
  • Stockholders' Suits

Spinning circle Big letter B

Publications

Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B