
Litigation: Securities
USA Guide 2026 : California
Rankings

Ranked Individuals
Ranked Individuals
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
Katen represented BioAge Labs and its directors and officers in a class action and derivative action in connection with the company's IPO.
Strengths
Provided by Chambers
Katten is very good at handling complex and sophisticated matters and is able to simplify matters in a way that is understood by the client and other litigants.
Litigation: Securities respondentUSAKatten has been extremely responsive, and has achieved stellar results for us.
Litigation: Securities respondentUSAKatten has a deep and very experienced team. From senior partner to associate, it's a quality team.
Litigation: Securities respondentUSAThe firm is pragmatic, up to speed with latest developments, and understands business objectives.
Litigation: Securities respondentUSA
Notable Practitioners
Provided by Chambers
Band 2 
Band 2 
Bruce G Vanyo
Bruce Vanyo is vastly experienced in acting for clients in complex securities class actions and shareholder derivative suits. I appreciate his strategic and tactical approach.
Litigation: Securities respondentUSABruce is a legend among securities litigators. He is highly sophisticated and creative.
Litigation: Securities respondentUSABruce has amazing experience and ability to craft arguments that address the key underlying issues of complex complaints and allegations.
Litigation: Securities respondentUSA
Band 4 
Band 4 
Gidon Caine
Gidon Caine is well-versed in representing clients in an array of securities matters, including class actions and SEC investigations. He has notable experience acting for major names in the technology and life sciences industries.
I consider Gidon Caine a go-to adviser.
Litigation: Securities respondentUSAGidon is very experienced and knowledgeable.
Litigation: Securities respondentUSA
Band 4 
Band 4 
Richard Zelichov
Richard Zelichov is well-versed in acting for clients in securities class actions and derivative suits. He is particularly adept at handling claims relating to IPOs.
Richard Zelichov is responsive, experienced and pragmatic.
Litigation: Securities respondentUSARichard offers outstanding service and valuable insight.
Litigation: Securities respondentUSARichard is a high-value attorney and a joy to work with.
Litigation: Securities respondentUSA
Band 5 
Band 5 
Christina Costley
Christina Costley is sought by clients across a wide range of industries to handle securities class and derivative actions. She chairs the firm's West Coast securities litigation practice group.
Christina is a very knowledgeable and competent securities litigator.
Litigation: Securities respondentUSAShe is experienced in securities matters and able to wade through complex issues.
Litigation: Securities respondentUSAChristina is responsive and produces excellent work quality.
Litigation: Securities respondentUSAChristina will handle questions with the right tailoring for the client and its risk profile and industry. She is also highly responsive.
Litigation: Securities respondentUSA
Ranked Individuals at Katten (4)
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