About Michael

Michael has extensive experience, both at Cooley and as a former Department of Justice (DOJ) trial attorney, leading complex, multijurisdictional commercial matters, post-acquisition disputes and internal investigations. He has represented purchasers, sellers and underwriters in nearly 100 post-acquisition disputes, and he regularly provides pre-deal counseling on litigation matters in M&A transactions. Michael has served as lead trial counsel on behalf of plaintiffs and defendants in matters involving claims of fraud, trade secret misappropriation, misuse of confidential information and breach of contract, among others. He also represents companies and individuals facing investigations from federal and state government entities – such as the DOJ, the Securities and Exchange Commission (SEC) and state attorneys general offices.

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Pro bono service

Traveling

Experience

Clubessential Holdings to Merge With Xplor Technologies

Clubessential Holdings to Merge With Xplor Technologies

September 16, 2025

Cooley advised Clubessential Holdings, a global provider of software as a service and embedded payments solutions for membership-based organizations, backed by Battery Ventures and Silver Lake, on its definitive agreement to merge with Xplor Technologies, a platform providing software and embedded payments solutions to businesses in everyday life verticals, such as childcare and education, fitness and wellbeing, field services, and personal services.

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Alfred Browne
Partner, Boston
Danielle Fortier
Partner
Nick Kenyon
Associate, Boston
Sydney Sachs
Associate, Boston
Ryan Sonberg
Associate, Boston
Sri Ravipati
Associate, Boston
Alison Kimball
Associate, Boston
Daniel Tsai
Associate, Santa Monica
Megan Browdie
Partner, Washington, DC
Rick Jantz
Associate, Santa Monica
Nicollette R. Kirby
Associate, Washington, DC
William Corcoran
Of Counsel, Boston
Michael Pelle
Associate, New York
Ryan Montgomery
Partner, Boston
Tony P. Guan
Associate, Santa Monica
Breanna Qin
Associate, Palo Alto
Thomas Connors
Partner, Boston
Adam Fleisher
Partner, Washington, DC
David Fletcher
Partner, Washington, DC
Caroline Hobson
Partner, London
Lyndsey M. Kruzer
Partner
Izzy Lubarsky
Partner, New York
Kristen Mathews
Partner, New York
Michael McMahon
Partner, Boston
Obrea Poindexter
Partner, Washington, DC
Stella Sarma
Partner, Brussels
Logan Tiari
Partner, Los Angeles
Rachel Shapiro
Associate, Colorado
Karun Ahuja
Special Counsel, Chicago
Jack Jones
Special Counsel, London
Karen Tsai
Special Counsel, Washington, DC
Etenish Abebe
Associate, Boston
Ryan Bowers
Associate, Washington, DC
Anna Caro
Associate, London
Danielle Carvalho
Associate, Boston
Umer Chaudhry
Associate, Washington, DC
Allison Kutner
Associate, New York
Jacob R. Lahana
Associate, Santa Monica
Alexandra Leavy
Associate, New York
Eileen Leman
Associate, Los Angeles
Emily Mok
Associate, Reston
Katrina Morris
Associate, Boston
Palmer Quamme
Associate, Washington, DC
Zach Sisko
Associate, Boston
Christine Thebaud
Associate, Washington, DC
Rubin Waranch
Associate, Colorado
Leanne Andrepont
Senior Trademark Paralegal
Megan Boss
Senior Paralegal , Boston
Jason Minio
Paralegal Specialist, Boston
Elizabeth Rice
Paralegal Specialist, Boston
Brandon Lefebvre
Quantitative Analyst, Boston
Douglas Lyles
Senior Research Services & Access Analyst

Related Practices & Industries

Emerging Companies
Mergers and Acquisitions
Technology Transactions
Technology
Fintech and Payments
Antitrust and Competition
Tax
Labor and Employment
Trademark, Copyright and Advertising
Commercial Litigation
Financial Services Enforcement and Regulatory
Debt Finance
Cyber/Data/Privacy
CFIUS
Capital Markets

Red Canary Announces Acquisition by Zscaler

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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Related contacts

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

Related Practices & Industries

Mergers and Acquisitions
Technology Transactions
Technology
Cloud Solutions
Labor and Employment
Antitrust and Competition
Cyber/Data/Privacy
Compensation and Benefits
Tax
Emerging Companies

Boston Celtics Announce $6.1 Billion Sale to Group Led by William Chisholm

Boston Celtics Announce $6.1 Billion Sale to Group Led by William Chisholm

March 20, 2025

Cooley advised the Boston Celtics and the Grousbeck family – the majority stakeholders of Boston Basketball Partners, which owns the American professional basketball team – in connection with their agreement to sell the Celtics to an investor group led by William Chisholm.

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Related contacts

Matthew Hemington
Partner, Palo Alto
Steve Tonsfeldt
Partner, Palo Alto
David Silverman
Partner, New York
Gaël Y. Hagan
Special Counsel , Colorado
Alanna Anderson
Associate, Palo Alto
Ryan Fitzgerald
Associate, Palo Alto
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Todd Gluth
Partner, San Diego
Patrick Sharma
Associate, Santa Monica
Megan Browdie
Partner, Washington, DC
Rubin Waranch
Associate, Colorado
Michael McMahon
Partner, Boston
Rishab Kumar
Partner, Palo Alto
Eric Jensen
Senior Counsel, Palo Alto
Mark Tanoury
Senior Partner, Palo Alto
Rachel Thorn
Of counsel, New York

Related Practices & Industries

Sports+
Mergers and Acquisitions
Private Equity
Tax
Antitrust and Competition

CallTower Receives Investment From BV Investment Partners

CallTower Receives Investment From BV Investment Partners

November 16, 2023

Cooley advised CallTower, an international leader in delivering cloud-based, enterprise-class communications, contact center and collaboration solutions, on its investment from BV Investment Partners.

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Related contacts

Garland “Sonny” W. Allison
Partner, Colorado
Amelia Runyan Davis
Partner, Colorado
Tessa W Bell
Associate, Colorado
Eileen Marshall
Partner, Washington, DC
Robert M. McDowell
Partner, Washington, DC
Tracy Rubin
Partner, Palo Alto
Steve Flores
Partner, Chicago
Michelle Garcia Schulman
Partner, Reston
Megan Browdie
Partner, Washington, DC
Patrick Flanagan
Partner, New York
Christopher Kimball
Partner, Washington, DC
Michael McMahon
Partner, Boston
Todd Gluth
Partner, San Diego
Kevin King
Partner, Washington, DC
J.G. Harrington
Special Counsel, Washington, DC
Stella Sarma
Partner, Brussels
Annie Froehlich
Partner, Washington, DC
Henry Wendel
Special Counsel, Washington, DC
Ariane A. Andrade
Partner, Chicago
David Dalton
Associate, Santa Monica
Andrew Mettry
Associate
Genevieve Lim Urban
Associate, Seattle
Rubin Waranch
Associate, Colorado
Katie Adams
Associate, Reston
Karun Ahuja
Special Counsel, Chicago
Carly E. Gibbons
Associate, Chicago
Alexandra Leavy
Associate, New York
Chelsea André
Associate, Colorado
Belen Crisp
Associate, Washington, DC
Patricia Myers
Paralegal Specialist, Colorado
Loraine Torres
Paralegal Specialist, Colorado
Douglas Lyles
Senior Research Services & Access Analyst

Related Practices & Industries

Private Equity
Mergers and Acquisitions
Technology
Technology Transactions
Software
Telecommunications and Wireless
Communications
Compensation and Benefits
Tax
Antitrust and Competition
Cyber/Data/Privacy
Real Estate
Labor and Employment
Debt Finance
CFIUS
Securities Litigation + Enforcement

Beam Announces Agreement for Lilly to Acquire Opt-In Rights to Verve Therapeutics’ Base-Editing Programs for Cardiovascular Disease

Beam Announces Agreement for Lilly to Acquire Opt-In Rights to Verve Therapeutics’ Base-Editing Programs for Cardiovascular Disease

October 31, 2023

Cooley advised Beam Therapeutics, a biotechnology company committed to establishing the leading, fully integrated platform for precision genetic medicines, on its agreement with Verve Therapeutics to sell its opt-in rights to co-develop and co-commercialize base-editing programs for cardiovascular disease to Eli Lilly and Company.

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Related contacts

Kenneth Krisko
Partner, Reston
Christophe Beauduin
Partner, New York
Jiqiang Lin
Associate, New York
Jameson Davis
Associate, Boston
Eric Blanchard
Partner, Boston
Wouter Deleersnyder
Associate, New York
Jayne M. Munger
Associate, New York
Michael Tollini
Partner, Washington, DC
Matthew S. Scarano
Associate, San Diego
Matt Kong
Associate, San Francisco
Eileen Marshall
Partner, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Rachel Thorn
Of counsel, New York
Sharon Connaughton
Special Counsel, Washington, DC
Marty Schenker
Senior Counsel , San Francisco
Michael McMahon
Partner, Boston

Related Practices & Industries

Mergers and Acquisitions
Life Sciences
Life Sciences Corporate Partnering and Licensing
Debt Finance
Tax
Arbitration
Antitrust and Competition
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Admissions and credentials

Massachusetts

Rankings and accolades

Best Lawyers: Ones to Watch in Commercial Litigation and Criminal Defense-White Collar

Chambers USA: Litigation: General Commercial – Massachusetts (2025)

The Legal 500 US: General Commercial Disputes (2025)

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