FacultyFaculty/Author Profile

Heidi E Mayon

Pillsbury Winthrop Shaw Pittman LLP
San Francisco, CA, USA

Heidi Mayon is a partner in the law firm's Corporate & Securities practice and is located in the San Francisco and Silicon Valley offices. She focuses on the representation of emerging growth and well-established corporate clients.

Heidi has represented both corporations and underwriters in over 50 public offerings of equity and debt. She also represents a variety of clients in ongoing general corporate governance matters and company reporting obligations under the Securities Exchange Act of 1934.
In addition to her work related to capital markets transactions, Heidi represents clients in a wide variety of business combinations and divestitures, including mergers, acquisitions, tender offers and spin-offs.

Mrs. Mayon’s emerging company practice focuses on venture capital financings as well as pre-incorporation counseling and general corporate representation.

Representative Matters

Public Offering Matters

  • Veracyte Initial Public Offering (2013)
  • Represented underwriters in the Montage Technology Group Limited Initial Public Offering (2013) and Follow On Offering (2014)
  • Violin Memory Initial Public Offering (2013)
  • Renewable Energy Group Initial Public Offering (2012)
  • Represented underwriters in the BCD Semiconductor Manufacturing Limited
  • Initial Public Offering (2011)
  • Meru Networks Initial Public Offering (2010)
  • eTelecare Global Solutions Initial Public Offering (2007)
  • SunPower Corporation Initial Public Offering (2005)
  • Atheros Communications Initial Public Offering (2004)

Mergers & Acquisitions

  • Represented Nicira in its sale to VMware (2012)
  • Represented Techwell, Inc. in its sale to Intersil Corporation (2010)
  • Represented Sigma Designs, Inc. in its acquisition of Israeli-based CopperGate Communications (2009)
  • Represented Potlatch Corporation in its spin-off of Clearwater Paper Corporation (2008)
  • Represented eTelecare Global Solutions in its sale to Providence Equity Partners and Ayala Corporation in a cross-border tender offer (2008)

Honors & Awards

  • Deal of the Year, Total Terminals Deal—Recognized, Asian-Counsel (2007)


  • Prospectus/Free Writing Prospectus, 2008
  • Practices / Industries
  • Corporate & Securities
  • Mergers & Acquisitions
  • Corporate & Securities - Technology
  • Emerging Growth
  • Technology
  • Semiconductor

Focus Teams

  • Social Media & Games
  • Augmented Reality
  • Gamblification
  • Location-Based Services & Mobile Applications
  • Online & Video Games
  • Virtual Currencies and Virtual Goods
  • Water Resources


  • State of California


  • J.D., University of San Francisco School of Law, 2002
    Law Faculty Merit Scholarship
  • B.A., University of San Diego, 1999

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