Simpson Grierson

Corporate and M&A

Partner

Don is a specialist corporate, securities and M&A lawyer.

Don’s wide-ranging corporate expertise includes takeovers, securities issuance, corporate restructuring and compliance. He acts for all types of participants in the capital markets, including listed companies, major institutional investors and fund managers.

Don is sought out to advise boards on the issues that arise when major corporate transactions are proposed, and has extensive experience advising on all aspects of corporate governance.

Don also has a significant M&A practice, and often acts for overseas investors acquiring New Zealand assets, or on the New Zealand aspects of large international transactions. He is highly skilled and experienced in navigating New Zealand’s overseas investment regime, and has a deep insight into the regulatory issues which are relevant to investing in New Zealand.

Don was an executive committee member of the Listed Companies Association for 10 years; and a member of the NZ Markets Disciplinary Tribunal for 9 years.  He was also a member of the NZX Legal and Regulatory Advisory Board.

Recognition

Asia Pacific Legal 500 Corporate/M&A 2026 – Leading Lawyer (Hall of Fame)

IFLR1000 Capital Markets 2025 – Highly Regarded

The International Who's Who Legal M&A | Mining 2019 – Global Leader

English

LLB(Hons)