Experience

AusperBio Secures $63 Million Series B2

September 21, 2025

Cooley advised AusperBio, a privately held, clinical-stage biotechnology company dedicated to advancing targeted oligonucleotide therapies to achieve a functional cure for chronic hepatitis B (CHB), on its $63 million Series B2 financing.

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Andrew Harline
Partner in Charge – Singapore, Singapore
Michael Shen
Special Counsel, Shanghai
Lunga Su
Associate, Shanghai
Dr. Madhuri Roy
Partner, Palo Alto
Letian Wei
Legal Consultant, Shanghai

Related Practices & Industries

Heartflow Announces $364.2 Million Upsized IPO

August 11, 2025

Cooley advised the underwriters of Heartflow, a leader in artificial intelligence technology for coronary artery disease, in connection with Heartflow’s $364.2 million upsized initial public offering.

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David Peinsipp
Partner, San Francisco
Kristin VanderPas
Partner, San Francisco
Charlie Kim
Partner, San Diego
Denny Won
Partner, San Francisco
Natasha Leskovsek
Of Counsel, Washington, DC
Phil Mitchell
Partner, New York
Eric Greig
Partner, Washington, DC
Joanna Liebes Hubberts
Partner, San Diego
Dr. Madhuri Roy
Partner, Palo Alto
Rebecca Ross
Special Counsel, Washington, DC
Barbara Mirza
Partner, Santa Monica
Xander Lee
Partner, Santa Monica
Jane Adams
Partner, San Diego
Annie Froehlich
Partner, Washington, DC
Kevin King
Partner, Washington, DC
Francis Wheeler
Senior Counsel, Colorado
Jessica Koffel
Special Counsel, Brussels
Dillon Martinson
Special Counsel, Washington, DC
Randy Sabett
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Max Gonzalez
Associate, Palo Alto
Peter A. Haddad
Associate, San Diego
Wyatt Kernell
Associate, Colorado
Allison Kutner
Associate, New York
Ryan Lewis
Associate, Colorado
Tyler Saavedra-Buckley
Associate, San Francisco
Valerie Sapozhnikova
Associate, Los Angeles

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Tempus Announces $600 Million Acquisition of Ambry Genetics

November 4, 2024

Cooley advised Tempus AI (Nasdaq: TEM), a technology company advancing precision medicine through the practical application of artificial intelligence in healthcare, on its agreement to acquire Ambry Genetics, a company focusing on genetic testing that aims to improve health by understanding the relationship between genetics and disease.

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Related contacts

Erin J. Kirchner
Partner, Chicago
Christina T. Roupas
Partner in Charge – Chicago, Chicago
Courtney M.W. Tygesson
Partner, Chicago
Michael Tollini
Partner, Washington, DC
Lindsey O'Crump
Associate, Washington, DC
Addison Pierce
Partner, Chicago
Ariane A. Andrade
Partner, Chicago
Steve Flores
Partner, Chicago
Todd Gluth
Partner, San Diego
Christopher Kimball
Partner, Washington, DC
Phil Mitchell
Partner, New York
Howard Morse
Senior Counsel, Washington, DC
Sonia Nath
Partner, Washington, DC
Nyron J. Persaud
Partner, New York
Aaron Pomeroy
Partner, Colorado
Dr. Madhuri Roy
Partner, Palo Alto
Michelle Garcia Schulman
Partner, Reston
Rachel Thorn
Of counsel, New York
Ryan Vann
Partner, Chicago
Susan Piascik Christoff
Special Counsel, Washington, DC
Son Nguyen
Special Counsel, Washington, DC
Randy Sabett
Special Counsel, Washington, DC
Stella Sarma
Partner, Brussels
Grant Schweikert
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Xander Lee
Partner, Santa Monica
Mateus Kaba Aboud
Associate, Chicago
Karun Ahuja
Special Counsel, Chicago
Tiffany Allen
Associate, Palo Alto
Umer Chaudhry
Associate, Washington, DC
Adrienne Beaudoin Deshmukh
Associate, Reston
Mari Dugas
Associate, Washington, DC
Carly E. Gibbons
Associate, Chicago
Charles Haley
Partner, Palo Alto
Kelley Harrington
Associate, Chicago
Nathaniel Hearn Jr.
Associate, Chicago
Kyle Hess
Associate, New York
Cameron Irwin
Associate, Chicago
Rick Jantz
Associate, Santa Monica
Patrick O. Johnson
Associate, Boston
David H. Zhou
Associate, Palo Alto

Septerna Announces Upsized $331.2 Million IPO

November 1, 2024

Cooley advised the underwriters of Septerna, a clinical-stage biotechnology company pioneering a new era of G protein-coupled receptor (GPCR) oral small molecule drug discovery, on its upsized $331.2 million initial public offering.

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Related contacts

Denny Won
Partner, San Francisco
Charlie Kim
Partner, San Diego
Kristin VanderPas
Partner, San Francisco
David Peinsipp
Partner, San Francisco
Claire Keast-Butler
Co-Partner in Charge – London, London
Xander Lee
Partner, Santa Monica
Barbara Mirza
Partner, Santa Monica
Phil Mitchell
Partner, New York
Dr. Madhuri Roy
Partner, Palo Alto
Randy Sabett
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Grady Chang
Associate, Santa Monica
Megan Drill
Associate, San Diego
Allison Kutner
Associate, New York
Sarah Miller
Associate, New York
Marjorie O'Neill
Associate, San Francisco
Minkyu Park
Special Counsel, New York
Dr. Mark Westwood
Associate, Palo Alto
Hardy Zhou
Associate, New York

Related Practices & Industries

Upstream Bio Announces Upsized $293 Million IPO

October 15, 2024

Cooley advised the underwriters of Upstream Bio, a clinical-stage biotech developing a monoclonal antibody to target respiratory disorders, on its upsized $293 million initial public offering.

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Related contacts

Kristin VanderPas
Partner, San Francisco
David Peinsipp
Partner, San Francisco
Denny Won
Partner, San Francisco
Charlie Kim
Partner, San Diego
Claire Keast-Butler
Co-Partner in Charge – London, London
Xander Lee
Partner, Santa Monica
Barbara Mirza
Partner, Santa Monica
Phil Mitchell
Partner, New York
Dr. Madhuri Roy
Partner, Palo Alto
Francis Wheeler
Senior Counsel, Colorado
Rebecca Ross
Special Counsel, Washington, DC
Randy Sabett
Special Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Megan Drill
Associate, San Diego
Zack Gong
Associate, Shanghai
Peter A. Haddad
Associate, San Diego
David D. Kim
Associate, San Francisco
Jessica Koffel
Special Counsel, Brussels
Sarah Miller
Associate, New York
Lawrence Traylor
Associate, Santa Monica

Related Practices & Industries

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Best Lawyers "Ones to Watch" - Intellectual Property

Chambers USA: Intellectual Property: Patent Prosecution – California (2024 – 2025)

The Legal 500 US: Patents: Prosecution (Including Re-Examination and Post-Grant Proceedings) (2024 – 2025)

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American Bar Association (ABA)

South Asian Bar Association

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