Kyle Hess

Associate
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New York

Illinois

Experience

Araris Biotech’s up to $1.14 Billion Acquisition by Taiho Pharmaceutical

March 17, 2025

Cooley advised Araris Biotech, a Swiss biotechnology company developing next-generation antibody-drug conjugates, on its definitive agreement to be acquired by Japan-based Taiho Pharmaceutical for up to $1.14 billion in cash.

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Partner, New York
Kenneth Krisko
Partner, Reston
Simon Amies
Partner, London
Rita Sobral
Special Counsel, London
Stephanie Parker Palmer
Special Counsel, Reston
Michael Bergmann
Partner, Washington, DC
Brandon W. Fenn
Partner, New York
Eileen Marshall
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Jeremy Morrison
Partner, Washington, DC
Dr. Matthew Pavao
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Stella Sarma
Partner, Brussels
Ryan Vann
Partner, Chicago
Natasha Leskovsek
Of Counsel, Washington, DC
Elizabeth Caruso
Associate, New York
Matthew Choy
Associate, New York
Kyle Hess
Associate, New York
Katie Kaufman
Associate, Boston
Edward (Teddy) Nimetz
Associate, New York
Alexandra Paterson
Associate, London
Joseph Perry
Associate, Reston
Dr. Robert E. Powers
Associate, Boston
María Álvarez Requejo Heredero
Associate, Brussels

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Cooley Advises Special Committee of Checkpoint on Acquisition by Sun Pharma

March 9, 2025

Cooley advised the special committee of Checkpoint Therapeutics’ (Nasdaq: CKPT) board of directors in connection with Checkpoint’s definitive agreement to be acquired by Sun Pharmaceutical Industries (NSE: SUNPHARMA) for up to $416 million in cash and contingent value rights.

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Bill Roegge
Partner, New York
Kevin Cooper
Partner, New York
Marc Recht
Partner, Boston
Wesley Dietrich
Associate, Washington, DC
Katie Benvenuti
Associate, New York
Michael Bergmann
Partner, Washington, DC
Eileen Marshall
Partner, Washington, DC
Alan W. Tamarelli
Partner, New York
Julia R. Brinton
Special Counsel, Washington, DC
Kristopher Kleiner
Special Counsel, Colorado
Rebecca Ross
Special Counsel, Washington, DC
Stella Sarma
Partner, Brussels
Natasha Leskovsek
Of Counsel, Washington, DC
Karun Ahuja
Special Counsel, Chicago
Elizabeth Caruso
Associate, New York
Matthew Choy
Associate, New York
Jameson Davis
Associate, Boston
Kyle Hess
Associate, New York
Allison Kutner
Associate, New York
Breanna Qin
Associate, Palo Alto
Arda Can Tekin
Associate, New York
Ryan Vann
Partner, Chicago

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Alani Nu’s $1.8 Billion Sale to Celsius

February 20, 2025

Cooley advised Katy Hearn and Haydn Schneider, co-founders of Alani Nu, in connection with Celsius Holdings’ (Nasdaq: CELH) definitive agreement to acquire the company for $1.8 billion in cash and stock.

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Bill Roegge
Partner, New York
Stephanie Leigh
Paralegal Specialist, San Diego
Stephanie Gentile
Partner, New York
Jeremy Morrison
Partner, Washington, DC
Vicky Kandabarow
Associate, Washington, DC
Kyle Hess
Associate, New York
Wesley Dietrich
Associate, Washington, DC
Sharon Connaughton
Special Counsel, Washington, DC
Todd Gluth
Partner, San Diego
Sarah Lightdale
Partner, New York
Eileen Marshall
Partner, Washington, DC
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Julia R. Brinton
Special Counsel, Washington, DC
William Corcoran
Of Counsel, Boston

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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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Erin J. Kirchner
Partner, Chicago
Richard E. Ginsberg
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
Elizabeth Caruso
Associate, New York
Umer Chaudhry
Associate, Washington, DC
Adrienne Beaudoin Deshmukh
Associate, Reston
Mari Dugas
Associate, Washington, DC
Carly E. Gibbons
Associate, Chicago
Jose Luis Gonzalez
Associate, Palo Alto
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

Radionetics Oncology Announces Strategic Agreement With Eli Lilly

July 1, 2024

Cooley advised Radionetics Oncology, a biotechnology company discovering and developing novel small molecule G protein-coupled receptor (GPCR)-targeted radiopharmaceuticals to treat a broad range of solid tumors, on the formation of a strategic agreement with Eli Lilly to take forward Radionetics’ proprietary GPCR-targeting small molecule radiopharmaceuticals. Under the terms of the agreement, Radionetics received a $140 million up-front cash payment. Additionally, Lilly obtained the exclusive right to acquire Radionetics for $1 billion upon conclusion of an exercise period.

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Rama Padmanabhan
Partner, San Diego
Charity Williams
Partner, San Diego
Jenny Ge
Associate, Santa Monica
Chen Chen
Associate, Palo Alto
Todd Gluth
Partner, San Diego
Alessandra Murata
Partner, Palo Alto
Ross Eberly
Partner, Santa Monica
Howard Morse
Senior Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
David Burns
Special Counsel, Washington, DC
Andrew Epstein
Special Counsel, Seattle
Karen Tsai
Special Counsel, Washington, DC
Kyle Hess
Associate, New York
Jonathan Kaufman
Associate, Palo Alto
Allison Kutner
Associate, New York
Edmond Lay
Partner, San Diego
Jeremy Gentile
Associate, San Diego
Amanda Pacheco
Associate, Palo Alto
Breanna Qin
Associate, Palo Alto
Megan Drill
Associate, San Diego
Jack Whitaker
Associate, San Diego
Patricia Myers
Paralegal Specialist, Colorado

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