Brian Umanoff is an associate in the Orange County office of Latham & Watkins and a member of the Corporate Department.

Mr. Umanoff represents both private and public companies in a range of matters, including:

  • Mergers and acquisitions
  • Public offerings
  • Private financing
  • Corporate governance

Prior to joining Latham, Mr. Umanoff was an intern at the Office of US Senator Carl Levin.

Mr. Umanoff’s experience includes representing:


  • Ka’ena Corporation and its affiliated brands, Mint Mobile and Ultra Mobile, in its up to US$1.35 billion acquisition by T-Mobile
  • Switch, Inc. in its US$11 billion acquisition by affiliates of DigitalBridge Group and IFM Investors
  • Cloudways in its US$350 million acquisition by DigitalOcean Holdings
  • Planet Labs in its US$2.8 billion business combination with dMY Technology Group, Inc. IV
  • Joby Aviation in its US$4.5 billion business combination with Reinvent Technology Partners, and in Joby’s acquisition of Uber Technologies’ aerial ridesharing business, Uber Elevate
  • Ouster in its US$1.9 billion business combination with Colonnade Acquisition Corp., and in Ouster’s acquisition of Sense Photonics
  • Virgin Galactic Holdings in its US$1.5 billion business combination with Social Capital Hedosophia Holdings Corp.
  • Dragoneer Investment Group in connection with a number of venture capital investments

Healthcare and Life Sciences

  • Ligand Pharmaceuticals in its spinoff of OmniAb and concurrent US$850 million business combination of OmniAb with Avista Public Acquisition Corp. II
  • Obagi in connection with Waldencast Acquisition Corp.’s simultaneous US$1.2 billion acquisition of Obagi and Milk Makeup
  • Siemens Healthineers in its US$16.4 billion acquisition of Varian Medical Systems
  • Ra Pharmaceuticals in its US$2.1 billion acquisition by UCB Pharma
  • Piper Sandler & Co., as financial advisor to Neovasc, in connection with Neovasc’s up to US$147 million acquisition by Shockwave Medical
  • J.P. Morgan Securities LLC, as financial advisor to Sumitovant Biopharma and Sumitomo Pharma, in connection with Sumitovant’s US$1.7 billion acquisition of Myovant Sciences
  • Perella Weinberg Partners LP, financial advisor to Orthofix Medical, in connection with the merger of equals between Orthofix and SeaSpine Holdings
  • Guggenheim Securities, LLC, as financial advisor to Wright Medical, in connection with Stryker Corporation’s US$5.4 billion acquisition of Wright Medical

Real Estate

  • William Lyon Homes in its US$2.5 billion acquisition by Taylor Morrison Home Corporation
  • Landsea Homes in its acquisition of Pinnacle West Homes

Bar Qualification

  • California


  • JD, University of Southern California Gould School of Law, 2016
    Order of the Coif
  • BA Political Science, Cornell University, 2013

Languages Spoken

  • English