Weaver was one of the three founding partners of Melville Jessup Weaver (MJW)  in 1992 and was the driving force behind the establishment of the office in Auckland.

He was more widely known in the industry for being the author of a controversial report prepared for the Financial Services Council, which was critical of adviser commissioners.

In a statement, MJW said: "He left an indelible mark on the company, not just in name but through his tireless work putting clients’ needs first."

He retired from the firm in September 2016 and died on June 9.

MJW principal Ben Trollip said: "One colleague, who asks to remain anonymous, remembers Mark as 'all over the place at times, but always knew exactly where he was going'.

"Mark was always highly interested in investment markets, and was the driving force behind the MJW Investment Survey which is entering its 18th year of publication. He also took a special interest in the some of the more non-traditional parts of actuarial work. In 1998 he put an enormous amount of effort in to advising clients on the privatisation of the ACC workplace cover, followed not too much later by its reversal. He also took on the assessment of liabilities for what have become known as weathertightness issues. He started his actuarial training with a life company and maintained a keen interest in the life insurance industry throughout his career."

Weaver was a past president of NZSA (2001 – 2003), served on a variety of ommittees and was the organiser of monthly lunches in Wellington for a number of years with speakers invited from his wide range of contacts in the actuarial profession and other business communities.

He is survived by his wife, Melissa, and children David and Saffron.

READ MORE: Getting to Know: Mark Weaver