Synne D. Chapman’s practice focuses on domestic and international corporate and financial transactions, particularly capital markets transactions. She works with both issuers and underwriters on various public and private securities offerings.

In addition to her transactional practice, Synne advises clients on corporate governance, securities laws, and SEC disclosure matters.

Synne joined the firm in 2016 and became a partner in 2025. From 2018 to 2021, she was resident in the Paris office.

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Notable Experience

Equity Offerings and Strategic Transactions

  • Medtronic, a global leader in healthcare technology, and its diabetes business, MiniMed, in MiniMed’s $560 million carve-out IPO, the second largest IPO in Medtech history, and separation from Medtronic.

  • The underwriters in Corebridge’s $1.7 billion IPO, the largest IPO of 2022, and numerous follow-on offerings since by American International Group (AIG) of its interest in Corebridge raising over $6 billion.  

  • Titan America and its parent company and sole shareholder, Titan Cement International, in its $384 million IPO.

  • Cushman & Wakefield and its principal shareholders in its $765 million IPO.

  • Elbit Systems, a major Israeli defense firm, in a $512 million SEC-registered follow-on offering.

  • MercadoLibre in equity offerings raising close to $5 billion. 

  • The underwriters in Enact’s $750 million SEC-registered offering. 

  • The underwriters in SharkNinja’s $313 million SEC-registered secondary follow-on offering.  

  • The underwriters in Leonardo DRS’ $320 million SEC-registered secondary offering. 

  • The underwriter in New York Community Bancorp’s $392.38 million SEC-registered secondary public offering. 

  • The underwriters in Believe’s €300 million IPO. 

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Debt and Equity-Linked Offerings

  • Citi and the initial purchasers in Banamex’s inaugural $1.3 billion Rule 144A/Reg S Tier 2 notes offering under its $3.5 billion notes program.

  • The underwriters in numerous SEC-registered debt offerings by AIG, including its ¥100 billion offering. 

  • The underwriters in numerous SEC-registered and unregistered debt offerings by Corebridge raising over $10 billion.

  • Clorox, Eastman Chemical and MercadoLibre in numerous SEC-registered debt offerings. 

  • The underwriters in numerous offerings by Zions Bancorporation.

  • LivaNova in its $300 million Rule 144A convertible note offering, related capped call transactions and private repurchase of existing notes.

  • The underwriters and lead dealer managers in SiriusPoint’s SEC-registered offering, cash tender offer, and notes redemption.

  • Exeter Finance, a Warburg Pincus portfolio company, in numerous Rule 144A/Reg S bond offerings. 

  • Astound Broadband in its $1.9 billion Rule 144A/Reg S bond offering. 

  • Israel Electric Corporation in its Rule 144A/Reg S bond offering under its $7.5 billion global medium-term note program. 

  • BNP Paribas in various debt capital markets issuances raising close to $30 billion including Rule 144A/Reg S debt, hybrid securities, and green bond offerings. 

  • Designated underwriters’ counsel for Total’s SEC-registered debt shelf offerings raising over $10 billion.

  • Airbus and Airbus Canada in Airbus Canada’s $830 million private placement of guaranteed senior notes.

  • CMA CGM in its €525 million Rule 144A/Reg S bond offering. 

  • The Republic of Côte d’Ivoire in its €1.7 billion Rule 144A/Reg S sovereign bond offering. 

  • The Republic of Benin in its €500 million Rule 144A/Reg S sovereign bond offering. 

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Corporate Governance and SEC Disclosure

  • Advises boards and management on corporate governance and securities law matters, including disclosure and compliance obligations. Representative clients include Casey’s,  Clorox, Dentsply Sirona, Eastman Chemical, Elbit Systems, and MercadoLibre.

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Selected Activities

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  • Member, Board of Directors, Volunteers of Legal Service
  • Executive Editor, The Columbia Business Law Review, Columbia Law School

Publications