Department profile
Cooley LLP

Litigation: General Commercial

USA Guide 2026 : California: San Diego


Cooley LLP

Rankings

Chambers Review

Provided by Chambers

Litigation: General Commercial - California: San Diego

Band 1

Band 1


What the Team is Known For

Cooley offers a deep bench of skilled litigators with strong substantive knowledge in securities and commercial litigation. The law firm is particularly adept at representing pharmaceutical and biotechnology companies in major class actions, as well as excellent skills in intellectual property disputes.

Work Highlights

Provided by Chambers

  • Cooley defended Google in a state class action and jury trial, in which plaintiffs alleged that the Android operating system causes certain data to be transmitted from Android devices to Google servers over cellular networks rather than Wi-Fi, utilizing plaintiffs’ cellular data allowances without permission.

Strengths

Provided by Chambers

  • Cooley is excellent in San Diego. It has a professional, deep bench with really excellent attorneys.

    Litigation: General Commercial respondentUSA
  • Cooley has a deep understanding of how plaintiff law firms behave and how to get the best settlement.

    Litigation: General Commercial respondentUSA
  • Their understanding of the federal court system is excellent. The thoroughness in which they approach fact discovery is also exemplary.

    Litigation: General Commercial respondentUSA
  • Cooley is always responsive and understands our business. It is a game changer for us to have a firm that has the depth and breadth of legal expertise in all areas.

    Litigation: General Commercial respondentUSA
  • Cooley knows the area of securities litigation better than anyone; we feel they are the best. They have done incredible work and deliver exceptional work product, responsiveness and advocacy.

    Litigation: General Commercial respondentUSA

Notable Practitioners

Provided by Chambers

  • Band 1Koji F. Fukumura
    Band 1Koji F. Fukumura

    Koji F. Fukumura

    Koji Fukumura routinely handles big-ticket securities actions for major corporates and their executives. He has experience in defending class actions across the whole range of potential securities law violations and has expertise in defending clients in the pharmaceutical and technology sectors.

    • Koji Fukamara is one of the top litigators in the country.

      Litigation: General Commercial respondentUSA
    • Everything Koji called was spot-on. He can handle and lead tough negotiations.

      Litigation: General Commercial respondentUSA
    • Koji is passionate, smart and experienced. He is a litigator and a go-getter.

      Litigation: General Commercial respondentUSA
  • Band 1Michael Attanasio
    Band 1Michael Attanasio

    Michael Attanasio

    Michael Attanasio is the former chair of the firm's global litigation department. He is an experienced trial lawyer with notable expertise in commercial disputes.

    • Michael is the type of lawyer you want representing you in difficult cases. He is that combination you are looking for in terms of tenacity and strategic approaches to litigation.

      Litigation: General Commercial respondentUSA
    • Mike is very impressive in all ways, shapes and forms. He is someone who gives the board a tremendous amount of confidence.

      Litigation: General Commercial respondentUSA
    • Michael has a strong courtroom presence, and he is an excellent team leader.

      Litigation: General Commercial respondentUSA
  • Band 1Patrick Gibbs
    Band 1Patrick Gibbs

    Patrick Gibbs

    Patrick Gibbs advises clients in the tech and life sciences sectors on significant class action concerns, as well as derivative suits.
    • Patrick is a great lawyer and a good guy.

      Litigation: General Commercial respondentUSA
    • Patrick is fantastic in the courtroom, with clients and with everyone he works with.

      Litigation: General Commercial respondentUSA
    • Patrick has been a consistently strong and excellent lawyer.

      Litigation: General Commercial respondentUSA
  • Band 2Mazda Antia
    Band 2Mazda Antia

    Mazda Antia

    Mazda Antia regularly acts for technology and life sciences clients to handle a broad spectrum of commercial litigation matters, including defending class actions.
    • Mazda is calm under pressure.

      Litigation: General Commercial respondentUSA
    • He is a great negotiator.

      Litigation: General Commercial respondentUSA
  • Band 3Benedict Y Hur
    Band 3Benedict Y Hur

    Benedict Y Hur

    Benedict Y Hur regularly handles high-profile commercial and privacy disputes for clients in the technology sector.

    • Ben is a good listener, which goes a long way in getting advice that is helpful. I feel comfortable with him representing us.

      Litigation: General Commercial respondentUSA
    • Benedict has been a leader in the community here, and has handled some large cases.

      Litigation: General Commercial respondentUSA
  • Band 3Kathleen R Hartnett
    Band 3Kathleen R Hartnett

    Kathleen R Hartnett

    Kathleen Hartnett represents plaintiffs and defendants in complex litigation, and is sought after for her expertise in commercial, regulatory and constitutional matters. She is recognized as a reliable litigator for leading technology companies.

    • Kathleen Hartnett is the smartest attorney I've ever worked with. She can write well and understands what judges want to see in briefings and legal findings.

      Litigation: General Commercial respondentUSA
    • Kathleen works on significant cases.

      Litigation: General Commercial respondentUSA
  • Band 4Whitty Somvichian
    Band 4Whitty Somvichian

    Whitty Somvichian

    Whitty Somvichian is held in high esteem by clients in the technology sector, who he represents in a broad array of commercial litigation and class action defense. He offers notable expertise in privacy disputes.
  • Band 5Peter Adams
    Band 5Peter Adams

    Peter Adams

    Peter Adams has experience in handling various securities class actions in both California and Delaware. He regularly defends corporate clients and executives in the technology and healthcare industries.

    • I like Peter's style. He is casual, reasonable and talented at breaking down complexity in a way that is translatable to a lay audience.

      Litigation: General Commercial respondentUSA
  • Band 5Shannon Eagan
    Band 5Shannon Eagan

    Shannon Eagan

    Shannon Eagan is the partner in charge and head of the business litigation practice for Cooley's Palo Alto office. She boasts experience in litigating securities cases and class actions across the United States on behalf of financial institutions, biotechnology and pharmaceutical companies.

    • Shannon is thoughtful, proactive and efficient. It is a joy to work with her.

      Litigation: General Commercial respondentUSA
    • Shannon is an excellent advocate, adviser and litigator.

      Litigation: General Commercial respondentUSA
    • Shannon provides thoughtful guidance and listens to client questions and suggestions for possible negotiating strategies.

      Litigation: General Commercial respondentUSA
    • Shannon always goes above and beyond.

      Litigation: General Commercial respondentUSA

Ranked Individuals at Cooley LLP (9)

California

California: San Diego

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