Douglas N. Cogen

415-875-2409
dcogen@fenwick.com
Partner
Corporate

Douglas N.
Cogen

Douglas N.
Cogen

Douglas N.
Cogen

Partner
Corporate

One of the nation's leading M&A lawyers, Doug has advised companies on more than $225 billion in mergers, acquisitions and divestitures.

He also advises clients on strategic and commercial transactions, corporate counseling and governance, securities matters, shareholder activism and takeover defense. He led Fenwick’s M&A practice for over 20 years and served as a member of the firm’s executive committee for 10 years.

Doug's transactional experience spans more than 25 years and includes cross-border transactions in the software, cybersecurity, internet, biopharma, medical diagnostics, medical devices, telecommunications, networking, semiconductor, computer hardware, packaged food and consumer products industries.

He is ranked by Chambers & Partners as among the world’s leading lawyers for Corporate/M&A in both the Global and USA guides. He is also recognized as a Notable Practitioner in the Nationwide Corporate/M&A–Highly Regarded listing. Client testimonials in the Chambers guides have consistently referred to Doug as “strategic”, “innovative”, and an “incredible negotiator who sees the big picture”.

Doug 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 University Law School and the Stanford Graduate School of Business.​​​​​​​​​​​​​​

[Doug] is a brilliant strategist and adviser on very complicated matters. He is also a remarkable business guru."

Chambers USA, Client Quote

2022 Edition

  • Over 200 deals for Cisco Systems, including the acquisitions of:
    • Scientific-Atlanta for $6.9B
    • NDS Group for $5B
    • Acacia Communications for $4.5B
    • AppDynamics for $3.7B
    • Webex Communications for $3.2B
    • Starent Networks for $2.9B
    • Sourcefire for $2.7B
    • Duo Security for $2.3B
    • BroadSoft for $1.9B
  • VeriSign's $21B merger with Network Solutions
  • Symantec’s $10.7B sale of its Enterprise Security business to Broadcom
  • Concur’s $8.3B acquisition by SAP
  • GitHub's $7.5B acquisition by Microsoft
  • Symantec’s $7.4B sale of the Veritas information management business to The Carlyle Group
  • Excite's $7.2B merger with @Home
  • Symantec's $4.65B merger with Blue Coat
  • NetScreen Technologies' $4.3B merger with Juniper Networks
  • Macromedia's $3.4B merger with Adobe Systems
  • Symantec’s $2.3B acquisition of LifeLock
  • Fitbit's $2.1B acquisition by Google
  • ArcSight’s $1.5B acquisition by Hewlett-Packard
  • Elantec Semiconductor's $1.4B acquisition by Intersil

  • Over 200 deals for Cisco Systems, including the acquisitions of:
    • Scientific-Atlanta for $6.9B
    • NDS Group for $5B
    • Acacia Communications for $4.5B
    • AppDynamics for $3.7B
    • Webex Communications for $3.2B
    • Starent Networks for $2.9B
    • Sourcefire for $2.7B
    • Duo Security for $2.3B
    • BroadSoft for $1.9B
  • VeriSign's $21B merger with Network Solutions
  • Symantec’s $10.7B sale of its Enterprise Security business to Broadcom
  • Concur’s $8.3B acquisition by SAP
  • GitHub's $7.5B acquisition by Microsoft
  • Symantec’s $7.4B sale of the Veritas information management business to The Carlyle Group
  • Excite's $7.2B merger with @Home
  • Symantec's $4.65B merger with Blue Coat
  • NetScreen Technologies' $4.3B merger with Juniper Networks
  • Macromedia's $3.4B merger with Adobe Systems
  • Symantec’s $2.3B acquisition of LifeLock
  • Fitbit's $2.1B acquisition by Google
  • ArcSight’s $1.5B acquisition by Hewlett-Packard
  • Elantec Semiconductor's $1.4B acquisition by Intersil

  • Loxo Oncology’s $8B acquisition by Eli Lilly
  • Cepheid’s $4B acquisition by Danaher​
  • Chinook Therapeutics’ $3.5B acquisition by Novartis
  • Audentes Therapeutics’ $3B acquisition by Astellas Pharma
  • DICE Therapeutics’ $2.4B acquisition by Eli Lilly
  • Agilent Technologies’ $1.5B acquisition of Varian
  • Amunix’s $1.2B acquisition by Sanofi
  • Dermira’s $1.1B acquisition by Eli Lilly​
  • Connetics' $930M merger with Stiefel Laboratories
  • Veracyte’s $600M acquisition of Decipher Biosciences

  • Loxo Oncology’s $8B acquisition by Eli Lilly
  • Cepheid’s $4B acquisition by Danaher​
  • Chinook Therapeutics’ $3.5B acquisition by Novartis
  • Audentes Therapeutics’ $3B acquisition by Astellas Pharma
  • DICE Therapeutics’ $2.4B acquisition by Eli Lilly
  • Agilent Technologies’ $1.5B acquisition of Varian
  • Amunix’s $1.2B acquisition by Sanofi
  • Dermira’s $1.1B acquisition by Eli Lilly​
  • Connetics' $930M merger with Stiefel Laboratories
  • Veracyte’s $600M acquisition of Decipher Biosciences

  • Clif Bar & Company's $2.9B acquisition by Mondelēz
  • Diamond Foods’ $2.35B Reverse Morris Trust merger with the Pringles business of Procter & Gamble (ultimately abandoned)
  • Fitbit’s $2.1B acquisition by Google
  • Diamond Foods’ $1.9B acquisition by Snyder’s-Lance
  • Diamond Foods’ $615M acquisition of Kettle Chips
  • Cisco Systems’ $590M acquisition of Pure Digital
  • Cisco Systems’ $500M acquisition of Linksys
  • Diamond Foods’ acquisition of the Pop Secret business from General Mills

  • Clif Bar & Company's $2.9B acquisition by Mondelēz
  • Diamond Foods’ $2.35B Reverse Morris Trust merger with the Pringles business of Procter & Gamble (ultimately abandoned)
  • Fitbit’s $2.1B acquisition by Google
  • Diamond Foods’ $1.9B acquisition by Snyder’s-Lance
  • Diamond Foods’ $615M acquisition of Kettle Chips
  • Cisco Systems’ $590M acquisition of Pure Digital
  • Cisco Systems’ $500M acquisition of Linksys
  • Diamond Foods’ acquisition of the Pop Secret business from General Mills

[Doug] is strategic...thinks on his feet and is always looking out for clients' backs but aiming to get a deal done."

Chambers Global, Client Quote

2022 Edition

[Doug] is strategic...thinks on his feet and is always looking out for clients' backs but aiming to get a deal done."

Chambers Global, Client Quote

2022 Edition

[Doug] is strategic...thinks on his feet and is always looking out for clients' backs but aiming to get a deal done."

Chambers Global, Client Quote

2022 Edition

Recognition Recognition Recognition

Recognition Recognition Recognition

Recognition
Chambers Global

2019-2024

Ranked in Corporate/M&A (International & Cross-Border)

Chambers USA

2006-2023

Leading lawyer for Corporate/M&A law

Law360

2019

“MVP of the Year” for Technology

The Deal

2018

“Lawyer of the Year” for technology and telecom dealmaking

The Daily Journal

2006, 2013, 2018

Top 100 Attorneys in California

Lawdragon

2021-2022, 2024

500 Leading Dealmakers in America

  • "Hall of Fame," The Legal 500, 2018 – 2023
  • Ranked, Leading Lawyer, United States - M&A/Corporate, The Legal 500, 2014 – 2019
  • “Deal Maker of the Year,” Finance Monthly, 2015, 2017
  • Listed, Top 50 Global M&A Lawyers, Global M&A Network, 2014
  • M&A Lawyer of the Year, Global M&A Network, 2010
  • Ranked, M&A, Who’s Who Legal, 2014 – 2023
  • Ranked, Corporate Governance, Who’s Who Legal, 2018 – 2023
  • “Elite Dealmaker,” IFLR1000, 2018
  • Best Lawyers in America, M&A, U.S. News - Best Lawyers, 2011 – 2021
  • Northern California “Super Lawyer,” Super Lawyers, 2006 – 2021

Recognition
Chambers Global

2019-2024

Ranked in Corporate/M&A (International & Cross-Border)

Chambers USA

2006-2023

Leading lawyer for Corporate/M&A law

Law360

2019

“MVP of the Year” for Technology

The Deal

2018

“Lawyer of the Year” for technology and telecom dealmaking

The Daily Journal

2006, 2013, 2018

Top 100 Attorneys in California

Lawdragon

2021-2022, 2024

500 Leading Dealmakers in America

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