LAWYER PROFILE
A William Caporizzo

A William Caporizzo

USA 2026

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Ranked in 1 practice area

About

Provided by WilmerHale

USA

Practice Areas

Bill Caporizzo is a leading lawyer and CPA who helps both private and public companies navigate the complex tax issues they often face. For more than 35 years, Mr. Caporizzo has been regularly called upon to represent clients on the tax implications of domestic and cross-border corporate mergers, spin-offs, acquisitions and dispositions, partnerships and joint ventures, and restructurings. He also advises corporate clients on capital market transactions, venture financings and fund formations.

Bill advises on tax related matters for a myriad of industries, including technology, life sciences, financial services, private equity and manufacturing, among others.

Professional Memberships

Mr. Caporizzo has presented at seminars on taxation for the NASDAQ, National Association of Stock Plan Professionals, and Massachusetts Continuing Legal Education Program. He is a member of the Tax Sections of the American and Massachusetts Bar Associations and the Boston Bar Association. Mr. Caporizzo is admitted to the Massachusetts and Connecticut Bar Associations.

Work Highlights

- Represented Akamai Technologies in its acquisition of Noname Security.

- Represented CH Investment Partners in its sale to Cresset Asset Management.

- Represented Circle Internet Group, Inc. in its acquisition of Hashnote Holdings LLC.

- Represented Flo Health in its $200 million Series C financing.

- Represented Herb Chambers Companies in its definitive agreement to be acquired by Asbury Automotive Group.

- Represented Instinet in the sale of its Fox River algorithmic trading business to Clear Street.

- Represented Navient Corporation in the sale of its Government Services business to an affiliate of Gallant Capital Partners, LLC.

- Represented Navient Corporation in the sale of its Xtend Healthcare business to CorroHealth.

- Represented Nordstrom family in connection with its going private transaction with Nordstrom, Inc. (NYSE) for $6.25 billion and related corporate governance matters.

- Represented Orna Therapeutics in its acquisition of ReNAgade Therapeutics.

- Represented Spectric plc in its acquisition of Micromeritics Instrument Corporation.

- Represented The Penn Mutual Life Insurance Company in its agreement to sell Janney Montgomery Scott LLC to KKR.

- Represented Thermo Fisher Scientific Inc. in its definitive agreement to acquire Solventum’s purification and filtration business for approximately $4.1 billion.

- Represented TMX VettaFi in its acquisition of Credit Suisse’s Bond Indices from UBS.

Education

Boston University School of Law

JD

University of Pennsylvania

BS

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Strengths

Provided by Chambers

  • Bill is one of the smartest lawyers I have ever worked with. He is a clear communicator and very responsive.

    TaxChambers Guide to the USA
  • Bill is an exceptional attorney. He is truly a total package for providing comprehensive and practical tax advice.

    TaxChambers Guide to the USA

Ranked Individuals at WilmerHale (136)

California

California: San Francisco, Silicon Valley & Surrou

Colorado

District of Columbia

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