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Cooley Advises on Keros’ Strategic Review Process, Negotiated Share Repurchase Transactions and Planned Issuer Tender Offer

October 15, 2025

Cooley advised Keros Therapeutics, a clinical-stage biopharmaceutical company focused on developing and commercializing novel therapeutics to treat a range of patients with disorders linked to dysfunctional signaling of the transforming growth factor-beta family of proteins, on its $375 million capital return program, which represents the culmination of Keros’ strategic review process, including its share purchase agreements to repurchase all shares of its common stock beneficially owned by ADAR1 Capital Management and Pontifax Venture Capital and planned tender offer for up to $194 million in value of shares of its common stock.

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Related contacts

Bill Roegge
Partner, New York
Kevin Cooper
Partner, New York
Ryan Sansom
Partner, Boston
Marc Recht
Partner, Boston
Minkyu Park
Special Counsel, New York
Julia Kim
Special Counsel, New York
Kathryn Benvenuti
Associate, New York
Koji Fukumura
Partner, San Diego
Sarah Lightdale
Partner, New York
Craig TenBroeck
Partner, San Diego
Elizabeth Wright
Special Counsel, Boston
Margaux Arntson
Associate
Susan Choy
Associate, New York
Brian P. Golger
Associate, New York
Jill Golub
Associate, New York
Denny Xu
Associate, Boston
Jeffrey J. Tolin
Partner, New York
Reid Hooper
Special Counsel, Washington, DC
Justin Kisner
Special Counsel, San Diego

Related Practices & Industries

SciTec to Be Acquired by Firefly Aerospace

October 5, 2025

Cooley advised SciTec, a leader in advanced national security technologies, on its definitive agreement to be acquired by Firefly Aerospace for approximately $855 million through a combination of $300 million in cash and $555 million in Firefly shares issued to SciTec owners at a price of $50 per share.

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Related contacts

Andrew Lustig
Partner, Reston
Aaron Binstock
Partner, Washington, DC
Heather Harrington
Special Counsel, Boston
Tessa W Bell
Associate, Colorado
Elise Robinson
Associate, Reston
Emily Gibson
Associate, Colorado
Megan Browdie
Partner, Washington, DC
Madison Jones
Partner, Washington, DC
Eileen Marshall
Partner, Washington, DC
Kristen Mathews
Partner, New York
Carly Mitchell
Partner, Washington, DC
David Walsh
Senior Counsel, Reston
Stacey A. Bradford
Special Counsel, Washington, DC
Justin Kisner
Special Counsel, San Diego
Kimberly Nguyen
Special Counsel, Reston
Henry Wendel
Special Counsel, Washington, DC
Etenish Abebe
Associate, Boston
Joy Chow
Associate, New York
Stefan Cohen
Associate, New York
Vicky Kandabarow
Associate, Washington, DC
Nicollette R. Kirby
Associate, Washington, DC
Eileen Leman
Associate, Los Angeles
Amanda Pacheco
Associate, Palo Alto
Tania Soris
Associate, Washington, DC
Patricia Myers
Paralegal Specialist, Colorado
Jake Ironfield
Transactional Quantitative Analyst, New York

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Y-mAbs Therapeutics Agrees to Acquisition by SERB Pharmaceuticals

August 5, 2025

Cooley advised Y-mAbs Therapeutics, a commercial-stage biopharmaceutical company focused on the development and commercialization of antibody-based therapeutics for the treatment of cancer, on its definitive merger agreement with SERB Pharmaceuticals. Under the agreement, SERB will acquire Y-mAbs, including its lead commercial oncology asset, DANYELZA, in an all-cash transaction representing an equity value of approximately $412 million.

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Related contacts

Bill Sorabella
Partner, New York
Bill Roegge
Partner, New York
Div Gupta
Partner, New York
Sarah Sellers
Partner, New York
Christophe Beauduin
Partner, New York
Megan Browdie
Partner, Washington, DC
Brad Goldberg
Partner, New York
Christopher Kimball
Partner, Washington, DC
Eileen Marshall
Partner, Washington, DC
Darah Protas
Partner, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Julia Kim
Special Counsel, New York
Justin Kisner
Special Counsel, San Diego
MaryBeth Shreiner
Special Counsel, Reston
Karen Tsai
Special Counsel, Washington, DC
Amanda Weiss
Special Counsel, New York
Rajdeep Roger Bains
Associate, San Diego
Norma Chayo Dichi
Associate, Washington, DC
Sharon Davidov
Associate, New York
Athina Gaki
Associate, Brussels
Kyle Hess
Associate, New York
Katie Kaufman
Associate, Boston
Nicollette R. Kirby
Associate, Washington, DC
Arda Can Tekin
Associate, London
Shaun (Tianjie) Wang
Associate, New York

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AIRO Group Holdings Closes $69 Million IPO

June 16, 2025

Cooley advised AIRO Group Holdings, a company specializing in advanced aerospace and defense technologies, on its $69 million initial public offering (IPO).

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Related contacts

Christina T. Roupas
Partner in Charge – Chicago, Chicago
Yvan-Claude Pierre
Partner, New York
Courtney M.W. Tygesson
Partner, Chicago
Grady Chang
Associate, Santa Monica
Darren DeStefano
Partner, Reston
David Fletcher
Partner, Washington, DC
Christopher Hutter
Partner, Reston
Xander Lee
Partner, Santa Monica
Joshua Mates
Partner, San Francisco
Addison Pierce
Partner, Chicago
Howard Morse
Senior Counsel, Washington, DC
Francis Wheeler
Senior Counsel, Colorado
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Karun Ahuja
Special Counsel, Chicago
Julia R. Brinton
Special Counsel, Washington, DC
Reid Hooper
Special Counsel, Washington, DC
Justin Kisner
Special Counsel, San Diego
Karen Tsai
Special Counsel, Washington, DC
David Wraige
Special Counsel, London
Kevin Carlson
Associate, Chicago
Megan Drill
Associate, San Diego
Leah Duncan
Associate, Chicago
Peter A. Haddad
Associate, San Diego
Erin Hilliard
Associate, San Francisco
Allison Kutner
Associate, New York
Breanna Qin
Associate, Palo Alto
Jesse Schulman
Associate, Colorado
Mariah A. Young
Associate, Chicago
Chris Rhem
Paralegal Specialist, San Francisco
Kate Walther
Paralegal Specialist, San Diego
Brandon Lefebvre
Quantitative Analyst, Boston

Related Practices & Industries

Heliogen Announces Sale to Zeo Energy

May 29, 2025

Cooley advised Heliogen, a provider of on-demand clean energy technology solutions, on its definitive agreement with Zeo Energy, a Florida-based provider of residential solar and energy efficiency solutions, representing the culmination of Heliogen’s review of strategic alternatives and pursuant to which Zeo will acquire all of Heliogen’s outstanding equity securities in an all-stock transaction.

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Related contacts

Bill Roegge
Partner, New York
John-Paul Motley
Partner in Charge, Los Angeles, Los Angeles
Dave Young
Partner, Santa Monica
Kevin Cooper
Partner, New York
Lindsey O'Crump
Associate, Washington, DC
Alexander Gefter
Associate, Santa Monica
Susan Choy
Associate, New York
Well Mackey Jr
Associate, New York
Eileen Marshall
Partner, Washington, DC
Timothy Shapiro
Partner, Palo Alto
Calvin Lee
Associate, New York
Austin Holt
Partner, Santa Monica
Alessandra Murata
Partner, Palo Alto
Mark Cornillez-Ty
Associate, Los Angeles
Helenanne Connolly
Partner, Reston
Ross Eberly
Partner, Santa Monica
Michael Neumeister
Partner, Los Angeles
Justin Kisner
Special Counsel, San Diego
Su Lian Lu
Special Counsel, Santa Monica
Michael Aridi Barake
Associate, Santa Monica
Nikki Chang DiFederico
Associate, San Francisco
Jeremiah P. Ledwidge
Associate, New York
Eileen Leman
Associate, Los Angeles
Sangitha Palaniappa
Associate, Palo Alto
Jill Simon
Senior Paralegal, New York
Brian Mitchell
Transactional Quantitative Analyst, San Diego

Related Practices & Industries

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