Jeffrey J. Tolin

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EsoBiotec Announces up to $1 Billion Acquisition by AstraZeneca

March 17, 2025

Cooley advised EsoBiotec, a biotechnology company pioneering in vivo cell therapies that has demonstrated promising early clinical activity, on its definitive agreement to be acquired by AstraZeneca (London Stock Exchange/Nasdaq Stockholm/Nasdaq: AZN) for up to $1 billion on a cash- and debt-free basis.

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Rowook Park
Partner, San Diego
Charity Williams
Partner, San Diego
Simon Amies
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Russell Anderson
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Megan Browdie
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Ross Eberly
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Christopher Kimball
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Charlie Lightfoot
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Alessandra Murata
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Dr. Matthew Pavao
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Guadalupe Sampedro
Partner, London
Stella Sarma
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Leo Spicer-Phelps
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Nicola Squire
Partner, London
Chris Stack
Partner, London
Jeffrey J. Tolin
Partner, New York
David Wilson
Partner, London
Julia R. Brinton
Special Counsel, Washington, DC
Andrew Epstein
Special Counsel, Seattle
Jack Jones
Special Counsel, London
Dillon Martinson
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Julie Wicklund
Special Counsel, Palo Alto
Natasha Leskovsek
Of Counsel, Washington, DC
Kafeel Azher
Associate, London
Sarah Buchik
Associate, New York
Dr. Jessica Cande
Associate, Boston
Mari Dugas
Associate, Washington, DC
Michael Fernando
Associate, London
Athina Gaki
Associate, Brussels
Elaine Huang
Associate, Palo Alto
Mark Jones
Associate, London
Eerik Kukebal
Associate, London
Chris Lynn
Associate, London
Morgan McCormack
Associate, London
Daniel Millard
Associate, London
Lindsey O'Crump
Associate, Washington, DC
Alexandra Paterson
Associate, London
Dr. Robert E. Powers
Associate, Boston
Zhijing Yu
Associate, Singapore
Kevin Gurley
Quantitative Analyst, New York

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Hummingbird Bioscience Announces Exclusive Worldwide License Agreement With Callio Therapeutics

March 3, 2025

Cooley advised Hummingbird Bioscience, a Singapore-based biotherapeutics company working at the interface of artificial intelligence and human innovation to discover and develop transformative medicines for hard-to-treat diseases, on its exclusive worldwide license agreement with Callio Therapeutics, a newly launched biotech company focused on realizing the promise of multipayload antibody-drug conjugates (ADCs) to improve cancer therapy.

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James Schneider
Partner, Boston
Jeffrey J. Tolin
Partner, New York
Steven Holm
Associate, Singapore
Michael Fernando
Associate, London
Michael Bergmann
Partner, Washington, DC
Paula Holland
Partner, London
Nicola Squire
Partner, London
Yi Jia Ng
Special Counsel, Singapore
Bethan Chalmers
Associate, London
Gwenlynne Lee
Counsel, Singapore
Amanda Pacheco
Associate, Palo Alto
Alexandra Paterson
Associate, London
Mara Rosario
Associate, Boston
Arda Can Tekin
Associate, New York

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Poseida Therapeutics Announces Agreement to Be Acquired by Roche for up to $1.5 Billion

November 26, 2024

Cooley advised Poseida Therapeutics, a clinical-stage allogeneic cell therapy and genetic medicines company advancing differentiated nonviral treatments for patients with cancer, autoimmune and rare diseases, on its merger agreement to be acquired by Roche at a price of $9 per share in cash at closing, plus a non-tradable contingent value right to receive up to an aggregate of $4 per share in cash, payable upon achievement of specified milestones. The price payable at closing represents a total equity value of up to $1.5 billion and a premium of approximately 215% to Poseida’s closing share price on November 25, 2024. Cooley previously represented Poseida in its initial public offering, equity and debt transactions, and collaboration agreements, including its collaboration agreement with Roche.

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Rowook Park
Partner, San Diego
Barbara Borden
Senior Counsel, San Diego
Julia Kim
Special Counsel, New York
Rajdeep Roger Bains
Associate, San Diego
Josh Himmelstern
Associate, San Diego
Elaine Huang
Associate, Palo Alto
Anne Luquette
Associate, San Francisco
Allie Pilmer
Associate, San Diego
Tom Coll
Partner, San Diego
Kenneth Krisko
Partner, Reston
Edmond Lay
Partner, San Diego
John Forrest
Associate, Boston
Jenny Ge
Associate, Santa Monica
Peter Adams
Partner, San Diego
Michael Bergmann
Partner, Washington, DC
Megan Browdie
Partner, Washington, DC
Ross Eberly
Partner, Santa Monica
Todd Gluth
Partner, San Diego
Christopher Kimball
Partner, Washington, DC
Kristopher Kleiner
Special Counsel, Colorado
Alessandra Murata
Partner, Palo Alto
Jeffrey J. Tolin
Partner, New York
Robert Eisenbach
Of Counsel, San Francisco
Maricel Mojares-Moore
Special Counsel, San Francisco
Dillon Martinson
Special Counsel, Washington, DC
Stella Sarma
Partner, Brussels
Natasha Leskovsek
Of Counsel, Washington, DC
Alexandria Ashour
Associate, San Diego
Elizabeth Caruso
Associate, New York
Navya Dasari
Associate, New York
Dr. Gesa Junge
Associate, New York
Sara Kim
Associate, Los Angeles
Nicollette R. Kirby
Associate, Washington, DC
Allison Kutner
Associate, New York
Calvin Lee
Associate, New York
Calvin Lee
Associate, New York
Dr. Robert E. Powers
Associate, Boston
Breanna Qin
Associate, Palo Alto
Shelby Saunders
Associate, New York
Shaun (Tianjie) Wang
Associate, New York
Colleen R. Wellington-Caban
Associate, Washington, DC
Jack Whitaker
Associate, San Diego
Kathleen (Kat) DiNapoli
Patent Agent, Washington, DC
Anna Anderson
Paralegal Specialist, London
Dr. Matthew Pavao
Partner, Boston
Novak Topalovic
Associate, San Diego

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Halcyon Closes $100 Million Series C

November 25, 2024

Cooley advised Halcyon on its $100 million Series C funding. Partner Derek Colla led the Cooley team advising Halcyon, an organization devoted to defeating ransomware through prevention and resilience by way of a proprietary technology that captures encryption keys, enabling organizations to recover from attacks in minutes without paying ransom.

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Derek Colla
Partner, Miami
Leo Metz
Associate
Sela Dougherty
Associate, Miami
Wesley Dietrich
Associate, Washington, DC
Jon Gavenman
Partner, Palo Alto
Christian Plaza
Partner, Reston
Jeffrey J. Tolin
Partner, New York
David Walsh
Senior Counsel, Reston
Shelby Saunders
Associate, New York
Brandon Lefebvre
Quantitative Analyst, Boston

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2024 11 21 Lightning AI Raises 50 Million

November 21, 2024

Cooley advised Lightning AI, creator of the PyTorch Lightning framework, on its $50 million equity investment from Cisco Investments, J.P. Morgan, K5 Global and NVIDIA, bringing its total funding to $103 million.

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Derek Colla
Partner, Miami
Asheley Walker
Associate, Washington, DC
Leo Metz
Associate
Delina Mesfin
Associate
Sean Ruff
Partner, Washington, DC
Christopher Kimball
Partner, Washington, DC
Kevin King
Partner, Washington, DC
Jeffrey J. Tolin
Partner, New York
Rebecca Ross
Special Counsel, Washington, DC
Barry Kuang
Associate, Boston
Calvin Lee
Associate, New York
Heather McShea
Associate, Washington, DC
Sarah Oliai
Associate, Washington, DC
Brandon Lefebvre
Quantitative Analyst, Boston

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New York

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American Bar Association - Section of Taxation

New York State Bar Association