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Fenwick & West LLP

Work +1 415 875 2300
Mountain View, New York, San Francisco, Seattle, Shanghai

Douglas Cogen

Work (415) 875-2409
Fenwick & West LLP

Work Department

Corporate Group


Mr. Cogen is Co-Chair of the Firm's Mergers and Acquisitions Group and is resident in the San Francisco office. His practice focuses on mergers and acquisitions, strategic and commercial transactions, corporate counseling and financings. He has served as a member of the firm's Executive Committee. Mr. Cogen's transactional experience includes over $70 billion of completed mergers, acquisitions and divestitures including cross-border transactions in the networking, software, life sciences, medical devices, telecommunications, semiconductor, internet, computer hardware and consumer products industries; public company tender offers; and private placements of equity and debt securities. Mr. Cogen also counsels companies on corporate governance matters, takeover defenses and strategic partnering arrangements.


Mr. Cogen was named by Global M&A Network as "M&A Lawyer of the Year" for 2010. The Los Angeles Daily Journal and San Francisco Daily Journal named him as one of the Top 100 Attorneys in the State of California, one of only five northern California "Dealmakers" included in the list. Mr. Cogen is listed as "Highly Recommended" in M&A and Corporate Finance in PLC Which Lawyer? and is ranked in Corporate Law/M&A by Chambers USA, each an independent listing of leading attorneys in specialist practice areas worldwide. He was named by Best Lawyers as one of the Best Lawyers in America in Mergers & Acquisitions Law, by Law & Politics and San Francisco magazines as a Northern California "Super Lawyer," by Bay Area Lawyer magazine as one of the Best Lawyers in the Bay Area, by AlwaysOn and KPMG as Top Dealmaker-Lawyer, and by Lawdragon as one of the 500 Leading Dealmakers in the United States. Mr. Cogen has also served as Director of Intergovernmental Relations for the New York City Planning Commission. He has lectured on transactional law at Columbia University Law School, Stanford Law School and the Stanford Graduate School of Business.




Member of the Bar of California.


BA - Architecture and Society, Brown University; JD - University of Michigan (1992);

United States: M&A/corporate and commercial

M&A: middle-market ($500m-999m)

Within: Leading lawyers

Douglas Cogen - Fenwick & West LLP

Within: M&A: middle-market ($500m-999m)

Fenwick & West LLP’s ‘team is incredibly expeditious and thorough, and should be recommended for any client looking for legal solutions during M&A deals’. The practice serves as lead corporate and M&A counsel for many of the world’s top technology companies. The M&A co-chairs are San Francisco-based Douglas Cogen, whose transactional experience includes over $100bn of completed domestic and cross-border mergers, acquisitions and divestitures, and David Healy in Mountain View, who represents a wide range of high-tech companies in M&A, joint ventures, strategic partnerships and spin-offs. Cogen acted for Cisco in one of the largest technology deals in 2017, the $3.7bn acquisition of AppDynamics; and Healy advised Hewlett Packard Enterprise on its acquisition of SimpliVity. Additional matters included Kris Withrow advising Intacct Corporation, a provider of cloud financial management solutions, on its $850m sale to The Sage Group. Other notable Mountain View advisers include Scott Joachim, who advises private equity, growth capital and venture capital investors, public and emerging companies, and entrepreneurs on technology sector deals; Gregory Roussel, who has extensive experience with clients in the social networking, software, electronic gaming, and mobile application sectors, and ‘has deep knowledge and deal-making expertise’; and David Michaels. Elsewhere, the ‘extremely knowledgeable’ Mark Stevens, who ‘drives M&A deals forward’, divides his time between Mountain View and New York, while in San Francisco, Ralph Pais has worked on numerous Dropbox acquisitions and over 50 Facebook acquisitions; Stephen Gillespie and Lynda Twomey are also highly rated. Stephen Graham and Alan Smith in Seattle and New York-based Ethan Skerry are additional key contacts.

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United States: Media, technology and telecoms

Technology: transactions

Within: Technology: transactions

Fenwick & West LLP focuses on advising technology and life sciences companies. The firm is highly rated for its work with start-ups in emerging technologies, such as the sharing economy, fintech, augmented and virtual reality, social networks, and gaming - and has a leading M&A practice in advising technology serial acquirers. It also has a robust venture capital practice. It acted for Facebook in its serial acquisition program, including the acquisitions of Ozlo, Source3, FacioMetric and CrowdTangle; and advised Cisco Systems on the $3.7bn acquisition of AppDynamics and its $1.9bn acquisition of BroadSoft. Other key deals included the team assisting American software company Symantec Corporation with its acquisition of LifeLock, advising Nimble Storage on its sale to Hewlett Packard Enterprise, and serving as primary corporate counsel to Unity, a cross-platform game engine, in its $400m financing from American private equity firm Silver Lake. San Francisco-based Jake Handy is technology transactions chair; Douglas Cogen is co-M&A chair; Stephen Gillespie manages the IP aspects of M&A deals; and Ralph Pais and Seattle-based corporate group chair Alan Smith are also highly rated. Mountain View’s Gregory Roussel is ‘extremely good at driving M&A transactions’; and technology and life sciences deal lawyer Ethan Skerry was hired in New York from Lowenstein Sandler LLP.

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