Karen Tsai

Special Counsel
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Experience

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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Rama Padmanabhan
Partner, San Diego
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
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Stella Sarma
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Leo Spicer-Phelps
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Nicola Squire
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Chris Stack
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Jeffrey J. Tolin
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David Wilson
Partner, London
Julia R. Brinton
Special Counsel, Washington, DC
Andrew Epstein
Special Counsel, Seattle
Jack Jones
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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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Egnyte Announces Majority Investment From GI Partners and TA Associates

February 25, 2025

Cooley advised Egnyte, a provider of secure content collaboration and governance solutions, on its strategic growth investment from GI Partners and TA Associates.

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Eric Jensen
Senior Counsel, Palo Alto
Sepideh Mousakhani
Partner, Palo Alto
Anne Lieberman
Partner, Santa Monica
Steve Tonsfeldt
Partner, Palo Alto
Kealan Santistevan
Associate, Palo Alto
Sangitha Palaniappa
Associate, Palo Alto
Michael Bergmann
Partner, Washington, DC
Brett De Jarnette
Partner, Palo Alto
Patrick Flanagan
Partner, New York
Todd Gluth
Partner, San Diego
Tracy Rubin
Partner, Palo Alto
Stella Sarma
Partner, Brussels
Timothy Shapiro
Partner, Palo Alto
David Silverman
Partner, New York
Ryan Vann
Partner, Chicago
Summer Wynn
Partner, San Diego
Howard Morse
Senior Counsel, Washington, DC
Sharon Connaughton
Special Counsel, Washington, DC
Rebecca Ross
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Nathan Alamillo
Associate, Santa Monica
Caitlin Breitenbruck
Associate, Seattle
Norma Chayo Dichi
Associate, Washington, DC
Queenie Chen
Associate, Palo Alto
Nikki Chang DiFederico
Associate, Palo Alto
Megan Drill
Associate, San Diego
Jeremy M. Exelbert
Associate, New York
Nathaniel Hearn Jr.
Associate, Chicago
Vicky Kandabarow
Associate, Washington, DC
Nicollette R. Kirby
Associate, Washington, DC
Allison Kutner
Associate, New York
Alexandra Leavy
Associate, New York
Emily Lee
Associate, Palo Alto
Narmada Murugan
Associate, Palo Alto
Michael Pelle
Associate, New York
Katie Stevens
Associate, Palo Alto
Rubin Waranch
Associate, Colorado
Kevin Gurley
Quantitative Analyst, New York
Brian Mitchell
Transactional Quantitative Analyst, San Diego

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Lovable Announces $15 Million Pre-Series A

February 25, 2025

Cooley advised Lovable Labs, a Sweden-based artificial intelligence startup, on its $15 million pre-Series A financing round. The round was led by Creandum, with participation from Visionaries Club and angel investors, including Charlie Songhurst (Meta Platforms board), Adam D’Angelo and Thomas Wolf (Hugging Face), and Erik Bernhardsson (Modal Labs).

Lawyers Kevin Rooney, Karem Jarada, Carl Min, Shelby Saunders, Rebecca Ross, Christopher Kimball and Karen Tsai led the Cooley team advising Lovable, with support from paralegal Chu Lee and transactional quantitative analyst Jake Ironfield.

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Kevin Rooney
Partner, San Francisco
Karem M. Jarada
Associate, San Francisco
Carl Min
Associate, San Francisco
Shelby Saunders
Associate, New York
Rebecca Ross
Special Counsel, Washington, DC
Christopher Kimball
Partner, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Chu Lee
Paralegal Specialist, San Francisco
Jake Ironfield
Transactional Quantitative Analyst, New York

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Baseten Announces $75 Million Series C

February 19, 2025

Cooley advised Baseten, the top inference platform for artificial intelligence (AI)-native products, on its $75 million Series C financing, bringing its total funding to $135 million.

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Josh Seidenfeld
Partner, Palo Alto
Daniel Y. Lee
Associate, Palo Alto
Celine Koh
Associate, Palo Alto
Kristina Krasnikova
Associate, Palo Alto
Danielle Wheeler
Associate, Colorado
Karen Tsai
Special Counsel, Washington, DC
Rebecca Ross
Special Counsel, Washington, DC
Andrew Epstein
Special Counsel, Seattle
John Sellers
Senior Counsel, Palo Alto
Mari Dugas
Associate, Washington, DC
Christy Fairlie
Paralegal Specialist, Reston
Melody Van Horn
Senior Paralegal, Palo Alto
Brian Mitchell
Transactional Quantitative Analyst, San Diego

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Nuvation Bio Announces up to $250 Million Nondilutive Financings From Sagard Healthcare Partners

February 18, 2025

Cooley advised Nuvation Bio (NYSE: NUVB), a global biopharmaceutical company tackling some of the greatest unmet needs in oncology, on its nondilutive financings of up to $250 million with Sagard Healthcare Partners.

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Mischi a Marca
Partner, San Francisco
Addison Pierce
Partner, Chicago
Shimeng Cheng
Special Counsel, San Francisco
Kenneth Guernsey
Senior Counsel , San Francisco
Rodrigo Huerta
Associate, Chicago
Charles A. Watkins II
Associate, Santa Monica
Dr. Jon Cousin
Partner, Washington, DC
Christophe Beauduin
Partner, New York
Sonia Nath
Partner, Washington, DC
Aaron Pomeroy
Partner, Colorado
Eileen Marshall
Partner, Washington, DC
Michael Neumeister
Partner, Los Angeles
Francis Wheeler
Senior Counsel, Colorado
Stacey A. Bradford
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Melissa H. Boyd
Associate, San Francisco
Cara Buchicchio
Associate, New York
Jameson Davis
Associate, Boston
Auguste Humphries
Associate, Washington, DC
Rick Jantz
Associate, Santa Monica
Allison Kutner
Associate, New York
Shelby Saunders
Associate, New York
Dr. Jason Valentine
Associate, Washington, DC
Jennifer Fitzpatrick
Paralegal Specialist, Washington, DC
Yiming Liu
Partner in Charge – Shanghai, Shanghai

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