Ora Grinberg

Ora Grinberg

Spoken Languages
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Ora Grinberg
Silicon Valley
+1 650 752 3297

Ora Grinberg is a partner in the firm’s Business Law Department and Tax practice. Ms. Grinberg focuses on U.S. corporate and international taxation, with an emphasis on mergers, acquisitions and restructurings. She represents buyers and sellers in domestic and cross-border merger and acquisition transactions. She regularly represents serial acquirers and has extensive experience advising on sophisticated corporate transactions.


Ms. Grinberg’s representative experience includes advising:

  • OSIsoft in its $5 billion acquisition by AVEVA*
  • Glu Mobile in its $2.4 billion acquisition by Electronic Arts*
  • Dermira in its $1.1 billion acquisition by Lilly*
  • Audentes Therapeutics in its $3 billion acquisition by Astellas*
  • SignalFx in its $1.05 billion acquisition by Splunk*
  • Imperva in its $2.1 billion acquisition by Thoma Bravo*
  • Cloudera in its $5.2 billion merger of equals with Hortonworks*
  • Chinook Therapeutics in its merger with Aduro Biotech*
  • Cray in its $1.3 billion acquisition by Hewlett Packard Enterprise*
  • Shutterfly in its $2.7 billion acquisition by Apollo Global Management and its $825 million acquisition of Lifetouch*
  • Diamond Foods in its approximately $1.9 billion acquisition by Snyder’s-Lance*
  • Veracyte in its $600 million acquisition of Decipher Biosciences*
  • Lululemon Athletica in its $500 million Acquisition of MIRROR*
  • Coinbase in its acquisition of Bison Trails*
  • Cisco Systems in numerous transactions, including:
    • its $2.6 billion acquisition of Acacia Communications*
    • its $3.7 billion acquisition of AppDynamics*
    • its $2.35 billion acquisition of Duo Security*
    • its $1.9 billion acquisition of Broadsoft*
    • its $1.4 billion acquisition of Jasper Technologies*
    • the sale of its Service Provider Video Software Solutions Business to Permira*
    • the pending sale of its Self-Organizing Network Business to HCL Technologies*
  • Symantec in several transactions, including:
    • the $10.7 billion sale of its enterprise security worldwide assets to Broadcom*
    • the $7.4 billion sale of its worldwide information management business*
    • the sale of its worldwide Website Security Business to DigiCert*

*Denotes experience prior to joining Goodwin.

Professional Experience

Prior to joining Goodwin, Ms. Grinberg was most recently Counsel at Fenwick & West in the tax practice group and Chair of the firm’s Pro Bono Review Committee.

Professional Activities

Ms. Grinberg taught International Tax Law at University of California, Berkeley School of Law. She is also a member of the State Bar of California Taxation Section, the American Bar Association Section of Taxation and the International Fiscal Association (IFA). Ms. Grinberg serves as the Women of IFA Network (WIN) Regional Leader for Northern California.




University of California, Berkeley School of Law

(Order of the Coif)


University of California, Davis

(highest honors, Phi Beta Kappa)


University of California, Davis

(honors, Phi Beta Kappa)



  • California

Recognition & Awards

Ms. Grinberg was awarded the inaugural Euromoney’s Americas Rising Stars Award for Best in Tax and Tax Disputes in 2019 and 2018. She also appears in Euromoney’s 2019, 2018 and 2017 Expert Guides: Rising Stars, in the Tax category. Ms. Grinberg is also recognized by California Super Lawyers as a Rising Star in 2020, 2019 and 2018.


Ms. Grinberg’s recent speaking engagements include:

  • Panelist, “Recent developments in international tax law and policy,” Leading Women in Tax Forum 2020, International Tax Review, March 3, 2020
  • Panelist, “US Tax Reform and its effect on international tax,” Leading Women in Tax Forum 2019, International Tax Review, February 26, 2019
  • Panelist, “Creation and Location of Intellectual Property in Light of the TCJA,” 2019 IFA USA Annual Conference, International Fiscal Association, February 21, 2019
  • Panelist, “Inbound Financing After Tax Reform – What Now?” 2018 Fall Tax Meeting, ABA Section of Taxation, October 5, 2018