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Home | BakerHostetler

Sean Killeen, Kevin Zimmerman Earn 2026 Rising Star Ranking from <em>Law360</em>

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Partners Sean Killeen and Kevin Zimmerman have been named 2026 Rising Stars by <em>Law360</em>, a designation that recognizes top legal talent under age 40 based on the attorney’s entire career and recent wins and leadership roles.

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Killeen’s practice centers on technology-driven privacy and cybersecurity litigation, including putative class actions and government investigations involving alleged tracking technologies and emerging platforms. He helps lead the firm’s response for clients facing the surge of cookie-, pixel- and session-replay litigation, where plaintiffs attempt to reframe ordinary website tools as unlawful “interceptions” or “wiretaps.” Killeen has defended major technology companies, retailers, credit unions, law firms, health care providers, insurance companies&nbsp;and private universities, among others, in large scale privacy litigation.

Zimmerman focuses his practice on insurance class action litigation, representing insurance and financial services companies in state and federal courts across the country. He has defended class actions involving a variety of breach of contract theories, misrepresentation claims, the False Claims Act, unclaimed property laws and consumer protection laws. Zimmerman also has extensive experience handling reinsurance litigation and arbitration, insurer-agent disputes and other complex commercial litigation.

A team of editors reviewed more than 1,100 submissions to arrive at this year’s list of more than 160 attorneys from 35 practice areas.

<a href="https://www.law360.com/technology/articles/2500494?nl_pk=29a5111c-2edc-4b4e-9140-96544aa7a7fe&amp;utm_source=newsletter&amp;utm_medium=email&amp;utm_campaign=technology&amp;utm_content=2026-08-03&amp;read_main=1&amp;nlsidx=0&amp;nlaidx=0">See the full list of Rising Stars</a>.

Sean Killeen, Kevin Zimmerman Earn 2026 Rising Star Ranking from Law360

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