Heidi Brooks Bradley

Shareholder | Seattle | 206.223.7979 |

Areas of Practice

Heidi Bradley is Chair of the Antitrust team and focuses her practice on securities litigation, antitrust matters and complex commercial disputes. She defends public companies in both state and federal courts in securities and antitrust class actions, and shareholder derivative litigation. Heidi is experienced in contract disputes, trade secrets litigation, stock-options backdating cases, and mergers and acquisitions. She represented a major software company in two antitrust jury trials.

Professional Experience

  • Sullivan & Cromwell LLP, Attorney (2008-2016)
  • Heller Ehrman LLP (2004-2008)

Admitted to Practice

  • Washington
  • California


  • Stanford Law School (J.D., 2004)
  • Principia College (B.A., with highest honors, Political Science, 2000)

Practice Group and Specialty Team Memberships

  • Chair, Antitrust and Trade Regulation
  • Litigation
  • Securities Litigation
  • Transportation Client Team

Representative Matters and Clients

  • In re Automotive Parts Antitrust Litigation, 2:12-md-02311 (E.D. Mich.)  Ongoing defense of two Japanese auto parts manufacturers in multiple class action lawsuits seeking damages as a result of collusion in the auto parts industry.
  • FHLB Seattle v. Bear, Stearns & Co., Inc., et al., No. 09-2-4629804 (King County Superior Court) (represented JPMorgan Chase in defense of an action seeking rescission of $1 billion in residential mortgage-backed securities)
  • Novell v. Microsoft, No. 2:04-cv-1045 (D. Utah) (defended Microsoft in a nine-week, $3 billion Sherman antitrust jury trial concerning regarding alleged reengineering of the Windows 95 operating system to hinder Novell’s development of the WordPerfect word processing system; prevailed on motion for judgement and affirmed by the 10th Circuit Court of Appeals)
  • In re Micromet Shareholders Litigation, No. 7197 VCP (Del. Ch. C.A.) (represented Amgen in connection with expedited Delaware and Maryland merger litigation arising from the proposed $1.1 billion acquisition of Micromet, Inc.; case dismissed)


  • Contributor to Lane Powell’s D&O Developments blog
  • “Ninth Circuit: Ethics Policy Violations Aren’t Securities Fraud,” The Corporate Governance Advisor (May/June 2017)
  • “Ninth Circuit Says Ethics Policies Are ‘Inherently Aspirational,’ and Violations Don’t Support Securities Fraud Claims, in Retail Wholesale v. Hewlett-Packard (January 19, 2017),” D&O Developments blog (February 16, 2017)

Awards and Honors

  • Selected as “Top 250 Women in Litigation” by Benchmark Litigation (2017)
  • Selected to “Under 40 Hot List” by Benchmark Litigation (2017)
  • Named as a “Washington Rising Star,” Super Lawyers® magazine, Antitrust Litigation (2017)
  • Named as a “Southern California Rising Star,” Super Lawyers® magazine, Business Litigation (2013-2015)

Professional and Community Activities

  • The State Bar of California
  • Washington State Bar Association

Heidi Brooks Bradley

Shareholder | Seattle | 206.223.7979 |