Nishitani, Ari

Recently Featured

KDDI Enters Into Capital Alliance With Coincheck

Capital Markets

June 11, 2026

Paul, Weiss Announces New Partners

Corporate

December 05, 2025

Ari
Nishitani

Tokyo

Fukoku Seimei Building 2F, 2-2
Uchisaiwaicho 2-chome
Chiyoda-ku, Tokyo 100-0011
Japan

Practices & Industries

Corporate

Mergers & Acquisitions

Education

J.D., Columbia Law School

A.B., Harvard University, magna cum laude

Bar Admissions

New York

Ari Nishitani is a partner in the Corporate Department and a member of the firm’s Mergers & Acquisitions Group. She regularly advises in the negotiation and structuring of mergers and acquisitions, dispositions and joint ventures on behalf of a diverse range of clients, including public and private companies and other entities.

Ari is a native speaker of Japanese. She is registered as a gaikokuhō jimu bengoshi in Japan.

Ari’s representations include advising:

  • Adjust GmbH’s sale to AppLovin Corporation
  • Aioi Nissay Dowa Insurance (ADI)’s acquisition of Royal State Financial Corporation and ADI’s concurrent acquisition of the minority interests of DTRIC Insurance Company
  • Citigroup’s acquisition of Nikko Cordial Corporation
  • Citigroup’s sale of the retail brokerage business of Nikko Cordial to Sumitomo Mitsui Banking Corporation
  • Citigroup’s sale of its retail banking business in Japan to Sumitomo Mitsui Banking Corporation
  • Citigroup’s sale of Citi Cards Japan to Sumitomo Mitsui Trust Bank, Limited
  • Citigroup’s sale of a $1.7 billion private equity portfolio to Axa Private Equity
  • Dainippon Sumitomo Pharma’s acquisition of Sepracor
  • A committee of independent directors of Garrett Motion Inc. in the company’s transactions to transform its capital structure, including the repurchase of a total of $570 million of its Series A preferred stock from Centerbridge Partners and funds managed by Oaktree Capital Management and the conversion all outstanding Series A preferred stock into a single class of common stock
  • An ad hoc committee of unsecured noteholders in the prearranged chapter 11 cases of Gulfport Energy, an independent, natural gas-weighted exploration and production company and one of the largest producers of natural gas in the contiguous United States
  • InnovaCare Health’s sale to a consortium of investors led by Summit Partners
  • Mitsubishi Chemical America’s acquisition of Gelest from New Mountain Capital
  • Oaktree Capital Management, alongside its portfolio company, Azorra Aviation, in its acquisition and recapitalization of certain aircraft owning silos of Nordic Aviation Capital pursuant to a prearranged chapter 11 plan process
  • SVF Investment Corp. 3, a special purpose acquisition company sponsored by an affiliate of SoftBank Investment Advisers, in its merger with Symbotic to form a publicly traded company with a pro-forma equity value of $5.5 billion

Recently Featured

KDDI Enters Into Capital Alliance With Coincheck

Capital Markets

June 11, 2026

Paul, Weiss Announces New Partners

Corporate

December 05, 2025