Boris is a leading authority in securities litigation and M&A, guiding technology giants and visionary entrepreneurs through complex legal landscapes with confidence. Through his expertise in fiduciary duty and disclosure counselling, Boris helps his clients transform legal obligations into opportunities to build trust and manage reputational risk.
As Global Co-Head of our TMT sector group, Boris has acted as a trusted adviser to many of the leading tech companies, including Google, Instacart and Palantir (complete list here), drawing on his deep expertise and market understanding to help them drive transformative change.
Testament to his reputation and unparalleled expertise, Boris has also represented several celebrated entrepreneurs, including Marc Andreessen, Herb Boyer, Larry Page and Mark Zuckerberg, empowering them to make tough decisions under pressure and in support of their wider objectives.
Boris has a remarkable track record of securing the best outcomes for his clients, having defended over 275 shareholder actions, derivative suits and merger challenges across the United States on behalf of domestic and foreign issuers. He regularly represents boards of directors, companies and individuals in both internal investigations and SEC enforcement proceedings, further demonstrating his commitment to protecting client interests in a dynamic regulatory environment.
Boris is also valued by public companies for his strategic guidance on fiduciary duty and disclosure issues, which provides the clarity and foresight needed to navigate an ever-evolving marketplace.
Recognised as a thought leader, Boris has served on a variety of legal organizations - including the Yale Law School Center for the Study of Corporate Law and the American Law Institute - and has been outside counsel to Palo Alto Community Eruv. He has also lectured at several law schools - including Berkeley, Harvard, Stanford, and Yale - and has published extensively on litigation and securities law topics (articles here), offering clients a deeper understanding of emerging trends, challenges and opportunities.
Select cases:
- He regularly represents Google (Alphabet) in its shareholder suits.
- He represented Genentech in all of its shareholder suits.
- He represents Instacart, Palantir, and Rivian in shareholder litigation growing out of their IPO’s.
Select clients
Software & Hardware Companies:
- Palantir
- HP
Life Sciences Companies:
- Genentech
- Moderna
- Stryker
Other Companies:
- Instacart
- Rivian
- Tesla
- Pixar
View full select client list here


