I help manage human capital. My job is to help make effective decisions during the employment life cycle and to resolve disputes arising from employment relationships.

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Wilderness Camping

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Hoosier Basketball

Experience

LB Pharmaceuticals Announces $285 Million Upsized IPO

September 12, 2025

Cooley advised LB Pharmaceuticals, a clinical-stage biopharmaceutical company developing novel therapies for the treatment of neuropsychiatric diseases including schizophrenia, on its $285 million upsized initial public offering (IPO).

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Brandon W. Fenn
Partner, New York
Div Gupta
Partner, New York
Marc Recht
Partner, Boston
Minkyu Park
Special Counsel, New York
Denny Xu
Associate, Boston
Danbi Kim
Associate, Boston
Ariane A. Andrade
Partner, Chicago
Nathaniel Hearn Jr.
Associate, Chicago
Karun Ahuja
Special Counsel, Chicago
Brandon Lefebvre
Quantitative Analyst, Boston
Stephanie Gentile
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Austin Holt
Partner, Santa Monica
Eileen Marshall
Partner, Washington, DC
Phil Mitchell
Partner, New York
Gerard O'Shea
Partner, New York
David Peinsipp
Partner, San Francisco
Ryan Vann
Partner, Chicago
Francis Wheeler
Senior Counsel, Colorado
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Sharon Connaughton
Special Counsel, Washington, DC
Andrew Epstein
Special Counsel, Seattle
Jessica Koffel
Special Counsel, Brussels
Rebecca Ross
Special Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Chelsea Braun
Associate, Boston
Cara Buchicchio
Associate, New York
David Dalton
Associate, Santa Monica
Vince Flynn
Associate, San Diego
Virat Gupta
Associate, Washington, DC
Wyatt Kernell
Associate, Colorado
Allison Kutner
Associate, New York
Brenna McGuire
Associate, Washington, DC
Sarah Miller
Associate, New York
Jayne M. Munger
Associate, New York
Miles Patton
Associate, New York
Alla Kagan
Paralegal Specialist, San Diego
Cathy Rude
Paralegal Specialist, Boston
Jake Ironfield
Transactional Quantitative Analyst, New York
Brian Mitchell
Transactional Quantitative Analyst, San Diego

Related Practices & Industries

Rubrik Announces Acquisition of Predibase

June 25, 2025

Cooley advised Rubrik (NYSE: RBRK), a leading cybersecurity company, on its agreement to acquire Predibase to accelerate agentic artificial intelligence adoption from pilot to production at scale. 

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Related contacts

Jamie Leigh
Partner, San Francisco
Kevin Cooper
Partner, New York
Caitlin Cunningham
Special Counsel, Colorado
Jon Avina
Partner, Palo Alto
Milson Yu
Partner, Palo Alto
TJ Graham
Partner, Palo Alto
Eileen Marshall
Partner, Washington, DC
Kristen Mathews
Partner, New York
Alessandra Murata
Partner, Palo Alto
Ryan Vann
Partner, Chicago
Stacey A. Bradford
Special Counsel, Washington, DC
Dani Nazemian
Special Counsel, San Diego
Raychelle L. Eddings
Associate, Chicago
Jose Luis Gonzalez
Associate, Palo Alto
Cameron Gyorffy
Associate, Santa Monica
Elaine Huang
Associate, Palo Alto
Breanna Qin
Associate, Palo Alto
Shelby Saunders
Associate, New York
Patrick Sharma
Associate, Santa Monica
Rubin Waranch
Associate, Colorado
David H. Zhou
Associate, Palo Alto
Kevin Gurley
Quantitative Analyst, New York

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Touchland to Be Acquired by Church & Dwight

May 15, 2025

Cooley advised Touchland, the fastest-growing brand in the hand sanitizer category in the US, on its acquisition by Church & Dwight (NYSE: CHD) for up to $880 million, including $700 million in cash and Church & Dwight restricted stock at closing, plus a payment of up to $180 million contingent on Touchland’s 2025 net sales.

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Related contacts

Kevin Cooper
Partner, New York
Jeff Laretto
Partner, New York
Vicky Kandabarow
Associate, Washington, DC
Sarah Buchik
Associate, New York
Mariam Kamal
Associate, New York
Stephanie Gentile
Partner, New York
Len Jacoby
Partner, New York
Ryan Montgomery
Partner, Boston
Ryan Vann
Partner, Chicago
David Burns
Special Counsel, Washington, DC
Sharon Connaughton
Special Counsel, Washington, DC
Son Nguyen
Special Counsel, Washington, DC
Tony P. Guan
Associate, Santa Monica
Auguste Humphries
Associate, Washington, DC
Allison Kutner
Associate, New York
Liz Paisner
Associate, New York
Michael Pelle
Associate, New York
Breanna Qin
Associate, Palo Alto
Leanne Andrepont
Senior Trademark Paralegal
Brandon Lefebvre
Quantitative Analyst, Boston

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Feedzai Acquires Demyst

April 22, 2025

Cooley advised Feedzai, a global leader in fraud and financial crime prevention, on its acquisition of Demyst, including Demyst’s Zonic data workflow orchestration platform, intellectual property and sophisticated data-integration capabilities.

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Related contacts

Rita Sobral
Special Counsel, London
Kevin Cooper
Partner, New York
Megan Browdie
Partner, Washington, DC
Thomas Connors
Partner, Boston
Annie Froehlich
Partner, Washington, DC
Guadalupe Sampedro
Partner, London
Stella Sarma
Partner, Brussels
Jeffrey J. Tolin
Partner, New York
Ryan Vann
Partner, Chicago
Julia R. Brinton
Special Counsel, Washington, DC
David Hopkins
Special Counsel, Colorado
Kathryn Benvenuti
Associate, New York
Ryan Bowers
Associate, Washington, DC
Athina Gaki
Associate, Brussels
Carly E. Gibbons
Associate, Chicago
Jimmy Gilligan
Associate, Boston
Michael Gladstone
Associate, New York
Eileen Leman
Associate, Los Angeles
Shante Mays
Associate, Reston
Daniel Millard
Associate, London
Shaun (Tianjie) Wang
Associate, New York
Leanne Andrepont
Senior Trademark Paralegal
Patricia Myers
Paralegal Specialist, Colorado

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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Related contacts

Bill Roegge
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
Partner, Washington, DC
Jeremy Morrison
Partner, Washington, DC
Stella Sarma
Partner, Brussels
Ryan Vann
Partner, Chicago
Natasha Leskovsek
Of Counsel, Washington, DC
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

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Meet Ryan Vann

Admissions and credentials

Illinois

Rankings and accolades

Chambers USA: Labor & Employment – Illinois (2021 – 2025)

Legal 500: Labor & Employment

Illinois Super Lawyers

He is an excellent lawyer with good vision on the market risks and issues.

Chambers USA

Ryan is truly exceptional. He is incredibly responsive, practical and very helpful in discussing very difficult things.

Chambers USA