Petillon Hiraide and Loomis LLP brings together a noteworthy combination of regulatory, litigation and corporate finance and mergers and acquisitions expertise.


Mark Hiraide represents companies listed on the NASDAQ, AMEX and OTCBB stock markets and privately held businesses and individual officers and directors in corporate and securities law matters. He specializes in counseling clients in both complex corporate finance and mergers and acquisition transactions and in litigation relating to liabilities under federal and state securities laws.

Mr. Hiraide began his career as an attorney for the U.S. Securities and Exchange Commission for eight years, after working for two years as an associate attorney in a Los Angeles law firm. He headed an Enforcement Branch in the SEC's Los Angeles Regional Office, and later was appointed by the United States Attorney's Office as a Special Assistant United States Attorney to prosecute a major criminal securities fraud case. He completed his career at the SEC as an Attorney-Advisor in the SEC's Division of Corporation Finance in Washington, D.C. and joined Lee Petillon in private practice in 1994.

Mr. Hiraide is a recognized authority in California securities law and practice. He is a Primary Contributor to the 2005 Opinions Report: Legal Opinions in Business Transactions (Excluding the Remedies Opinion) and served on the Editorial Committees of the Guide to California Securities Practice and Handbook for Incorporation of a Business in California published by the Corporations Committee of the Business Law Section of The State Bar of California. He is a contributing author to Representing Start-Up Companies (Thomson*West).

  • Defending public and private companies, and their officers and directors, in corporate and securities litigation.
  • Prosecuting securities claims on behalf of investors.
  • Representing parties in SEC, NASD, DOJ and DOC investigations and enforcement proceedings.
  • Counseling public companies in SEC compliance and their Boards of Directors and Audit Committees in corporate governance and securities law issues.
  • Private placements of securities to institutional and 'angel' investors.
  • Public financings, including, IPOs, PIPEs and reverse mergers.
  • Mergers and acquisition transactions by public and private companies.
  • Trading and Listing applications on the NASDAQ, AMEX and OTCBB.
  • Representing broker-dealers and investment-advisers in regulatory matters.
  • Testifying as an expert witness in corporate and securities law.

  • December 14, 2011. testimony before the UNITED STATES COMMITTEE ON BANKING, HOUSING, AND URBAN AFFAIRS' SUBCOMMITTEE ON SECURITIES, INSURANCE, AND INVESTMENT at its hearing on Examining Investor Risks in Capital Raising. Mark provided his analysis of Congressional legislation relating to federal and state securities laws. Click here for more information about the hearing.
  • November 17, 2011. State Bar Business Law Section seminar, "How To Series in California Securities Law."
  • November 3, 2011. Beverly Hills Bar Association seminar, "Securities Issues Affecting Small Businesses."
  • September 18, 2011. State Bar Annual Convention program, "Top Issues in International M&A."
  • June 14, 2011. Reverse Merger Conference in Los Angeles sponsored by Deal Flow Media, "Protecting Your Deal."
  • June 1, 2011. BroadsCircle program on corporate governance, "Broads on Boards."
  • May 11, 2011. State Bar's "2011 What's New on the Horizon: Hot Topics in Corporate Law" webinar.
  • March 11, 2011. Annual Professional Seminar of The Institute of Internal Auditors (IIA) Program, "Recent Developments in SEC and DOJ Efforts to Combat Fraud: Whisteblowers, Wiretaps and the FCPA."
  • February 24, 2011. Los Angeles County Bar Association Program, "Impact of the Dodd-Frank Financial Reform Act on Broker-Dealer Regulation and Regulation of Investment Advisers: Regulation of Advisers to Private Equity Funds, Venture Capital Funds and Hedge Funds" with Karol L. Pollock, Assistant Director of the US Securities and Exchange Commission.

Mr. Hiraide received his B.A. (with honors) in 1981 from the University of California at Berkeley and his law degree in 1984 from the University of Southern California. In law school, he received a Merit Scholarship and served as a judicial extern to Justice Cruz Reynoso of the California Supreme Court and to the Honorable Robert M. Takasugi of the United States District Court, Central District of California. He has served as a member of the Board of Governors of the Beverly Hills Bar Association and the Board of Governors of the Japanese American Bar Association.