Mainly specializing in the life sciences, healthcare, and energy industries, A&O Shearman acts for issuers and underwriters in multi-jurisdictional private placements, secondary offerings, and IPOs. The firm’s expertise extends to at-the-market offerings and financing transactions. From Silicon Valley, Christopher Forrester assists investment banks and major sponsors. Located in Houston, Bill Nelson is knowledgeable in cross-border securities offerings, and Taylor Landry is also highlighted as key. Ilir Mujalovic and Harald Halbhuber departed the team in February 2026.
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Key clients

  • BofA Securities
  • Leerink Partners
  • Evercore ISI
  • RBC Capital Markets
  • TD Cowen
  • Piper Sandler
  • Wedbush PacGrow
  • Needham & Company
  • Truist Securities
  • Morgan Stanley
  • Silverbow Resources Inc.
  • GMS Ventures and Investments

Work highlights

Advised the underwriters in connection with the upsized USD207 million initial public offering of Ceribell, Inc.
Advised the joint book-running managers, in connection with the USD403.7 million follow-on equity offering of Bruker Corporation.
Advised the joint book-running managers, in connection with the USD201 million follow-on equity offering of PROCEPT BioRobotics Corporation.
Other key lawyers

Chris Forrester; Bill Nelson; Taylor Landry; Ilya Mamin; Stella Sun; Katya Bogdanov