Paul Sieben
Partner
Paul Sieben is a partner in O’Melveny’s Silicon Valley office and a member of the Corporate and Mergers and Acquisitions Practices. Paul focuses on corporate and securities law. He has extensive experience with various types of transactions, including representing issuers, investors and underwriters in venture capital financings, mergers and acquisitions, spin-off and buyout transactions, recapitalizations, public equity offerings and private debt offerings.
In 2010, the
International Financial Law Review 1000 named Paul as one of its leading lawyers for private equity, and in 2011 and 2009, the
Legal 500 US recognized Paul as a leading lawyer in its Venture Capital and Emerging Companies category, citing the "extraordinary support" he provides to clients, and his ability to "produce very high-quality work on short timelines." In addition, in 2011, Paul was named to
Super Lawyers’ “Rising Stars” list of Northern California’s best young attorneys in the area of Mergers & Acquisitions.
Paul counsels both private and public technology and emerging growth companies and boards of directors with respect to securities law and Sarbanes-Oxley compliance and other corporate governance matters, including securities offerings, equity restructuring, buybacks, formation, and founders’ agreements. He also represents a large number of venture capital firms and investment banks in various securities and transactional matters.
Paul has served as lead counsel on over 300 angel, venture capital and private-equity financings, over 75 merger and acquisition transactions ranging in size from $1 million to over $2 billion and a large number of recapitalizations, public offerings and other transactions. Many of such transactions have been on behalf of, or opposite, today’s largest technology companies currently in existence. Certain of his recent transactional matters have included:
- Formation, financing, and ultimate $260 million sale of cyber-security company;
- $800 million financing and related tender offer of private social media company
- $200 million sale of advanced authentication company
- Formation, financing and ultimate sales of multiple social media, e-commerce and enterprise software companies to the world’s largest public and private internet and software companies
- Spin-out, financing, public offering and sale of authentication device and software provider
- Private-equity buyouts of international and domestic data center switching, healthcare services, solar and telecommunications companies
- Multiple joint venture transactions involving clean technology companies
- $350 million sale of private data-loss prevention company
- $550 million Nasdaq public offering of flash memory company
- $270 million Nasdaq initial public offering of a U.K. automation company
Paul’s clients include companies in a wide range of technology markets. He has substantial experience with companies in the security, media, social, mobile, internet, gaming, storage, clean technology and enterprise software markets, and also has experience with investments in life-science companies. Paul also has significant experience representing Cayman entities doing business in China.
Prior to joining O’Melveny, Paul was an associate in the Palo Alto office of Brobeck, Phleger & Harrison.
Professional Activities
Member, California Bar Association
Speaker, VentureBeat,” Downturn Roundtable” (2008); Dow Jones VentureWire Technology Showcase, “Finding an Exit”; Entrepreneurs Forum, North America Chinese Semiconductor Association (NACSA) (2007)