Garth Angelo Osterman

Partner
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I have been representing clients in mergers and acquisitions for almost 20 years, across a broad spectrum of industries, with a specialty in international and cross-border transactions.

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Infleqtion to Go Public Through Merger With Churchill Capital Corp X

September 8, 2025

Cooley advised Infleqtion, a global leader in neutral atom-based quantum technology, on its definitive business combination agreement with Churchill Capital Corp X, with the aim to accelerate Infleqtion’s mission to commercialize quantum products that provide orders of magnitude improvement in computing and precision sensing applications.

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Mike Nelson
Partner, Colorado
Garth Angelo Osterman
Partner, San Francisco
Kristin VanderPas
Partner, San Francisco
Peter Byrne
Partner, New York
Caitlin Breitenbruck
Associate, Seattle
Christine Turner
Associate, Colorado
Won Lee
Associate, Colorado
Ryan Lewis
Associate, Colorado
Orion Armon
Partner, Colorado
Ann Bevitt
Partner, London
Chris Coulter
Partner, London
Ross Eberly
Partner, Santa Monica
David Fletcher
Partner, Washington, DC
Annie Froehlich
Partner, Washington, DC
Todd Gluth
Partner, San Diego
Charles Haley
Partner, Palo Alto
Caroline Hobson
Partner, London
Christopher Kimball
Partner, Washington, DC
Kevin King
Partner, Washington, DC
Barbara Mirza
Partner, Santa Monica
Carly Mitchell
Partner, Washington, DC
Jeremy Morrison
Partner, Washington, DC
Julia R. Brinton
Special Counsel, Washington, DC
Andrew Epstein
Special Counsel, Seattle
Karen Tsai
Special Counsel, Washington, DC
Ryan Bowers
Associate, Washington, DC
Anna Caro
Associate, London
Danielle Carvalho
Associate, Boston
Grady Chang
Associate, Santa Monica
Umer Chaudhry
Associate, Washington, DC
David Dalton
Associate, Santa Monica
Maddie Drabble
Associate, London
Austin Dressen
Associate, Colorado
Megan Drill
Associate, San Diego
Virat Gupta
Associate, Washington, DC
Peter A. Haddad
Associate, San Diego
Elaine Huang
Associate, Palo Alto
Nicollette R. Kirby
Associate, Washington, DC
Andrew Mettry
Associate
Daniel Millard
Associate, London
Emily Mok
Associate, Reston
Juan Nascimbene
Associate, London
Sarah Oliai
Associate, Washington, DC
Emma Plankey
Associate, Boston
Natalie D. Vernon
Associate, Colorado
Brandan Ward
Associate, Colorado
Zi Ye
Associate, Palo Alto
Katherine Duplay
Paralegal Specialist, Colorado
Brandon Lefebvre
Quantitative Analyst, Boston
Kathryn Benvenuti
Associate, New York

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Cooley Advises SoftEye in Sale to TDK

June 19, 2025

Cooley advised SoftEye, a San Diego-based company developing specialized chips, cameras, software and algorithms for use in smart glasses, on its sale to TDK Corporation, a Tokyo-based global leader in advanced electronic solutions designed for a smarter, more connected world.

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Sean O'Neill
Partner, Santa Monica
Garth Angelo Osterman
Partner, San Francisco
Maureen Nagle
Special Counsel, Washington, DC
Cameron Gyorffy
Associate, Santa Monica
Michelle Liskanich
Associate, Santa Monica
Tucker Cochenour
Associate, Palo Alto
Tracy Rubin
Partner, Palo Alto
Stephanie Gentile
Partner, New York
Ross Eberly
Partner, Santa Monica
Ryan Montgomery
Partner, Boston
C. Thomas Hopkins
Partner, Santa Monica
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Andrew Epstein
Special Counsel, Seattle
Dillon Martinson
Special Counsel, Washington, DC
Breanna Qin
Associate, Palo Alto
Cristina DeBiase
Associate, Boston
Norma Chayo Dichi
Associate, Washington, DC
Hardy Zhou
Associate, New York
Eileen Leman
Associate, Los Angeles
Patricia Myers
Paralegal Specialist, Colorado
Christopher Kimball
Partner, Washington, DC
Annie Froehlich
Partner, Washington, DC
Rebecca Ross
Special Counsel, Washington, DC

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Cooley Advises io Products on $6.5 Billion Acquisition by OpenAI

May 29, 2025

Cooley advised io Products, an engineering and product manufacturing company co-founded by Jony Ive to develop, engineer and manufacture a new family of products for the artificial general intelligence era, on its approximately $6.5 billion acquisition by OpenAI. As part of the deal, Ive and his creative collective, LoveFrom, will assume deep design and creative responsibilities across OpenAI. 

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Adam Ruttenberg
Partner, Washington, DC
Craig Jacoby
Partner, San Francisco
Garth Angelo Osterman
Partner, San Francisco
Nick Davis
Partner in Charge – Seattle, Seattle
Caitlin Breitenbruck
Associate, Seattle
Sangitha Palaniappa
Associate, Palo Alto
Jamin Agosti
Associate, San Francisco
Meera Patel
Associate, San Francisco
Jonathan Rivinus
Partner, Colorado
Ryan Montgomery
Partner, Boston
Steve Flores
Partner, Chicago
Joshua Mates
Partner, San Francisco
Barbara Mirza
Partner, Santa Monica
Jeremy Morrison
Partner, Washington, DC
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Karun Ahuja
Special Counsel, Chicago
Sharon Connaughton
Special Counsel, Washington, DC
Jeff Goldman
Special Counsel, Palo Alto
Karen Tsai
Special Counsel, Washington, DC
Christopher B. Durbin
Of Counsel, Seattle
Blake Martell
Of counsel, San Francisco
Ryan Bowers
Associate, Washington, DC
David Dalton
Associate, Santa Monica
Sharon Davidov
Associate, New York
Alexander Ellebracht
Associate, Palo Alto
Michael Gladstone
Associate, New York
Michael Gladstone
Associate, New York
Elaine Huang
Associate, Palo Alto
Bomin Kim
Associate, New York
Anne Luquette
Associate, San Francisco
Sarah Oliai
Associate, Washington, DC
Breanna Qin
Associate, Palo Alto
Rubin Waranch
Associate, Colorado
Katie Kissner
Quantitative Analyst, San Francisco
Brandon Lefebvre
Quantitative Analyst, Boston

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Red Canary Announces Acquisition by Zscaler

May 27, 2025

Cooley advised Red Canary, a top managed detection and response platform that investigate threats while streamlining workflows through automated remediation, on its acquisition by Zscaler (Nasdaq: ZS).

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Garth Angelo Osterman
Partner, San Francisco
Ben Beerle
Partner, San Francisco
Jonathan Rivinus
Partner, Colorado
Tracy Rubin
Partner, Palo Alto
Natalie D. Vernon
Associate, Colorado
Kurtis Zinger
Associate, Colorado
Michael Pelle
Associate, New York
Patrick Johnson
Director of Marketing – Litigation, Chicago
Josh Himmelstern
Associate, San Diego
Ross Eberly
Partner, Santa Monica
Kevin King
Partner, Washington, DC
Kristen Mathews
Partner, New York
Michael McMahon
Partner, Boston
Barbara Mirza
Partner, Santa Monica
Jeremy Morrison
Partner, Washington, DC
Adam Ruttenberg
Partner, Washington, DC
Robert Jacques
Special Counsel, Washington, DC
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Karen Tsai
Special Counsel, Washington, DC
Rachel Thorn
Of counsel, New York
Alexander Ellebracht
Associate, Palo Alto
Lanny E. Holstein
Associate, Colorado
Katie Kaufman
Associate, Boston
Allison Kutner
Associate, New York
Eileen Leman
Associate, Los Angeles
Edward (Teddy) Nimetz
Associate, New York
Patricia Myers
Paralegal Specialist, Colorado
Brandon Lefebvre
Quantitative Analyst, Boston

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Machinify Announces Acquisition by New Mountain Capital

January 10, 2025

Cooley advised Machinify, a provider of artificial intelligence-powered software transforming healthcare payments, on its definitive agreement to be acquired by New Mountain Capital.

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Josh Seidenfeld
Partner, Palo Alto
Garth Angelo Osterman
Partner, San Francisco
Maureen Nagle
Special Counsel, Washington, DC
Nicolas Francis
Associate, San Francisco
Katie Rosati
Associate, Seattle
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
David Dalton
Associate, Santa Monica
Steve Flores
Partner, Chicago
Sean O'Neill
Partner, Santa Monica
Alexis Finkelberg Bortniker
Partner, San Diego
Ross Eberly
Partner, Santa Monica
Charles Haley
Partner, Palo Alto
Ryan Montgomery
Partner, Boston
Jonathan Rivinus
Partner, Colorado
Mark Medearis
Senior Counsel, Palo Alto
Sharon Connaughton
Special Counsel, Washington, DC
Alexander Ellebracht
Associate, Palo Alto
Josh Himmelstern
Associate, San Diego
Alison L. Tong
Associate, Seattle
Novak Topalovic
Associate, San Diego
Rubin Waranch
Associate, Colorado
Raquel Zepeda
Associate, San Francisco
Patricia Myers
Paralegal Specialist, Colorado
Melanie Yuvienco
Paralegal Specialist, Palo Alto
Brian Mitchell
Transactional Quantitative Analyst, San Diego

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