O’Melveny Worldwide

Amy S. Park is a high-stakes commercial litigator with an emphasis on complex business litigation, securities class actions and derivative suits, M&A litigation and corporate governance disputes. A creative tactician and skilled advocate, Amy guides her clients through all stages of disputes, delivering innovative arguments, winning strategies and practical solutions.

Recognized for her depth of experience in securities, business and financial disputes, Amy was named a Lawyer of the Year for Securities Litigation in the 2019 edition of Best Lawyers and is listed in the publication’s securities, M&A and commercial litigation categories. Amy serves as an Advisory Board Member of the Women In Securities Litigation Network, and writes and speaks regularly on developments in securities and other class action litigation. In 2020, she received a JD Supra Readers’ Choice Award for her articles covering developments in class action litigation.

Amy is active in a variety of initiatives that empower women lawyers to reach the highest levels of success. The National Diversity Council awarded her its Leadership Excellence in the Law award, which recognizes attorneys who have “distinguished themselves through their leadership, resolve and outstanding achievements for their clients.” Additionally, Amy has been named one of California’s Most Powerful and Influential Women by The California Diversity Council. She has been recognized by the Silicon Valley Business Journal as a Woman of Influence and was the recipient of a Wise Woman award from Deloitte.

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  • The Amidi Group and its principals in California state court litigation involving allegations of financial abuse, breach of fiduciary duty, fraud, and breach of contract and claims of $500 million+ in damages, relating to plaintiff’s sale of her interest in four businesses to defendants.
  • Oakland Roots Sports Club and the members of its board of directors in California state court litigation and a trial in arbitration regarding claims by the company’s former CEO and board member challenging his removal from those positions and seeking his reinstatement to both.
  • Quotient Technology in a post-closing earn-out dispute relating to the company’s acquisition of SavingStar.
  • Tetra Tech, Inc. in a post-closing M&A dispute involving a demand for accelerated earn-out payment and claims of fraud, breach of stock purchase agreement, breach of the covenant of good faith and fair dealing.
  • Securitize, Inc. in a post-closing M&A dispute regarding entitlement to earn-out payments and claims for breach of purchase agreement.
  • CEO of Granite Construction Inc. in a federal securities class action, state court securities class action, and federal shareholder derivative suit involving allegations related to misstatements in the company's financial statements and weaknesses in the company's internal controls over financial reporting, forecasting and risk management.
  • Former CEO of Pilgrim's Pride in federal securities class action and shareholder derivative litigation involving allegations related to purported bid rigging in broiler chicken industry.
  • directors of WageWorks, Inc. in a federal securities class action and state and federal shareholder derivative suits involving allegations related to a weakness in the company's internal controls over financial reporting and revenue recognition.
  • Science 37, Inc. and certain of its directors in a lawsuit brought by the company's founders and senior executives, alleging the directors breached their fiduciary duties in connection with the company's financing round and the executives' termination.
  • 8x8, Inc. in litigation against former employees for violation of their confidentiality agreements.
  • BlackRock, Inc. in high-profile cases in California Superior Court arising from the tragic collapse of an apartment building balcony.
  • directors of PG&E in shareholder derivative litigation in state and federal court arising out of a catastrophic pipeline rupture.
  • DeVry University in consumer class action litigation filed in district courts in California and Illinois challenging the school's advertisements regarding students' post-graduation job prospects, employability and earning potential.
  • Cavium Inc. in shareholder class action litigation in California state and federal courts seeking to enjoin the company's $6 billion merger with Marvell Technology Group LTD.
  • Tessera Technologies, Inc. in shareholder litigation in California state court and the Delaware Chancery Court in connection with its $850 million acquisition of DTS Inc.
  • TiVo Inc. and members of its board of directors in shareholder litigation in California federal court and the Delaware Chancery Court in connection with the company's $1.1 billion sale to Rovi Corporation.
  • PMC-Sierra Inc. and members of its board of directors in shareholder litigation in California state court arising out of the company's proposed sale.
  • SanDisk Corporation in shareholder class action litigation in California, Utah and Delaware challenging SanDisk’s $1.1 billion acquisition of Fusion-io.
  • MIPS Technologies, Inc. in shareholder class action litigation seeking to enjoin the MIPS's acquisition by Imagination Technologies Group plc and the sale of the MIPS's patents to Bridge Crossing, LLC.
  • LSI Corporation and its board of directors in shareholder class action litigation arising from the company's $6.6 billion acquisition.
  • Lattice Semiconductor Corporation in multi-forum shareholder litigation challenging the Lattice’s $600 million tender offer to acquire Silicon Image, Inc.
  • Computer Sciences Corporation and certain former officers in consolidated shareholder federal class action litigation arising in part from the company's contract with the U.K.'s National Health Service to establish a centralized patient record system in the United Kingdom.
  • VMware in expedited litigation regarding non-compete covenants and theft of trade secrets.
  • a multinational technology company in a pre-litigation resolution of a contract, corruption and fraud dispute arising out of the company's sale of one of its international business lines.
  • American West Bank in a breach of contract dispute arising out of AWB’s acquisition of branch banking locations from Banc of California.
  • Impax Laboratories in a high-stakes breach of contract action concerning the supply of Adderall XR.


Bar Admissions

  • California
  • New York
  • New Jersey


  • Seton Hall University, J.D.: magna cum laude; Articles Editor, Seton Hall Law Review; Moot Court Board
  • Seton Hall University, B.A.: summa cum laude

Honors & Awards

  • Recognized by Best Lawyers® for Litigation - Mergers and Acquisitions (2023-2024), Commercial Litigation and Litigation - Securities (2019-2024), and Litigation - Securities (2024) in Menlo Park, CA; Amy had also been named "Lawyer of the Year" (Litigation - Securities) in San Jose, CA (2019)
  • Recommended by The Legal 500 US in the category of Securities Litigation: Defense (2021-2024); General Commercial Disputes (2024)

Professional Activities


  • Honorable John C. Lifland, US District Court for the District of New Jersey
  • Honorable Stephen A. Stripp, US Bankruptcy Court for the District of New Jersey


  • Co-Author, “Officer Oversight Liability: Insights from the McDonald’s Decision,” The Corporate & Securities Law Advisor (April 2023)
  • Author, “An Amendment to the CCPA Provides a Welcome But Brief Reprieve for B2B Businesses,” The Recorder (October 25, 2019)
  • Author, “Effective Use of Deposition Video Clips at Trial,” Daily Journal (February 21, 2018)
  • Author, “Tips For Drafting Contractual Nonreliance Clauses,” Law360 (February 13, 2018)
  • Author, “Reg G-Based Merger Objection Claims Face Uncertain Future,” Daily Journal (January 23, 2018)
  • Co-Author, “Ninth Circuit Looks North in First-of-Its-Kind Decision,” Law.com (June 12, 2015)
  • Co-Author, “Twist on Merger Litigation: Paid Too Much?,” Daily Journal (January 22, 2015)
  • Author, “The Supreme Court Missed an Opportunity in Chadbourne to Maintain Uniformity Within Class Action Securities Litigation Involving Nationally-Traded Securities,” Bloomberg BNA (April 8, 2014)
  • Author, “Ninth Circuit: Forward-Looking Statements Protected by Safe Harbor Provision,” Los Angeles Daily Journal (July 14, 2010)
  • Author, “Justice Harry A. Blackmun: A Retrospective Consideration of the Justice’s Role in the Emancipation of Women,” 25 Seton Hall L. Rev. 1176 (1995)

Speaking Engagements

  • Presenter, “Is This Even Ethical?,” O’Melveny Public Company Boot Camp series (2020-2023)
  • Panelist, “M&A Disputes,” Corporate Disputes (April/June 2016)
  • Panelist, “Shareholder Litigation,” Corporate Disputes (October/December 2014)