Darren Guttenberg advises public and private companies on a wide array of corporate matters, including mergers and acquisitions, capital markets transactions, securities laws, and corporate governance.

Mr. Guttenberg helps companies navigate complex transactions, achieve regulatory compliance, and manage business-critical shareholder issues, including:

  • Mergers and acquisitions
  • Capital markets transactions
  • Joint ventures
  • Shareholder activism
  • General corporate representation

As a versatile lawyer, Mr. Guttenberg regularly advises clients across a range of industries. His ability to grasp the big picture allows him to help clients identify effective business solutions even under volatile market conditions and high-pressure situations.

He draws on his wide range of experiences to quickly learn a client’s business and develop trusted relationships.

Mr. Guttenberg’s broad transactional experience includes representing:

Real Estate

  • Digital Realty Trust, a publicly traded REIT, in its US$8.4 billion acquisition of a foreign publicly traded REIT
  • Landsea Homes, a publicly traded homebuilding company, in its acquisition of various private homebuilders across the country
  • The New Home Company, a publicly traded homebuilding company, in its US$338 million sale to a private equity buyer
  • Realty Income, a publicly traded real estate investment trust (REIT), in:
    • Its US$11 billion acquisition of a another publicly traded REIT and the subsequent US$2 billion spin-off of Orion Office REIT, a newly formed, publicly traded office property REIT
    • More than US$7 billion in debt and common stock public offerings
  • William Lyon Homes, a publicly traded homebuilding company, in its US$2.5 billion sale to Taylor Morrison

Biotechnology and Life Sciences

  • Allergan in its hostile takeover defense from Valeant Pharmaceuticals and its subsequent US$70.5 billion sale to Actavis
  • Aratana Therapeutics, a publicly traded pet therapeutics company, in its US$245 million sale to a global healthcare company
  • The underwriters in the US IPO of American depositary shares of Cellectis SA, a biopharmaceutical company
  • The underwriters in an initial public offering (IPO) of Corium International, a medical device company’s common stock
  • Momenta Pharmaceuticals in its US$6.5 billion sale to Johnson & Johnson
  • Spectranetics, a publicly traded medical devices company, in its US$230 million public offering of convertible notes

Additional Industries

  • Alorica, a global customer services company, in its acquisition of Expert Global Solutions
  • Landec, a publicly traded pharmaceutical manufacturing and agriculture company, in the divestiture of its US$73.5 million salads and vegetables business
  • NYX Gaming Group, a publicly traded gaming company, in its C$775 million sale to a private equity buyer
  • Playtika, a mobile gaming company, in its IPO of common stock, the largest IPO of an Israel-based company at its time
  • Skullcandy, a publicly traded consumer electronics company, in its US$200 million sale to a private equity firm
  • The special committee of T-Mobile US, a publicly traded global telecommunications company, in its US$26 billion merger with Sprint

Bar Qualification

  • California


  • JD, University of Southern California Law School, 2013
  • BA, University of California, Los Angeles, 2007