Mark Hiraide

Mark Hiraide is a corporate and securities partner with Mitchell Silberberg & Knupp (MSK), with the Los Angeles office and the Corporate & Business Transactions Practice Group.

Mark previously partnered with the late Lee Petillon (co-founder of SBEC) for 20 years at the securities-law boutique Petillon Hiraide LLP. Mark represents companies listed on national stock exchanges and privately held businesses and defends individual officers and directors in corporate and securities law matters.

During his 30-year career, Mark worked as an attorney with the Securities and Exchange Commission’s Division of Enforcement and Division of Corporation Finance and as a Special Assistant United States Attorney.

In private practice he has handled both courtroom litigation and business transactions representing entrepreneurs, startups, publicly traded companies, directors and officers, broker-dealers, investment bankers, investment advisers, accountants and investors. He is an authority on the federal JOBS Act, having testified before a U.S. Senate subcommittee evaluating the law designed to help startups raise money. He is the author of a book on crowdfunding just published by Thomson Reuters. And he is working with the California Legislature to pass a state crowdfunding law he drafted.


  • Securities Litigation
  • D&O Defense
  • SEC
  • PCAOB Defense
  • SEC Compliance
  • Corporate Governance
  • Mergers and Acquisitions (private, public)
  • Public Offerings