What did Northern Star Resources (ASX:NST) announce regarding its leadership?

Northern Star Resources announced that its long-standing Managing Director and CEO, Stuart Tonkin, intends to step down during the first quarter of FY27. He will remain in his current role until that time to oversee the conclusion of the company's current strategic plan.

Why is Stuart Tonkin's departure significant for Northern Star Resources (ASX:NST)?

Stuart Tonkin has had a highly successful 13-year tenure at the company, serving as COO, CEO, and Managing Director. Under his leadership, Northern Star transformed from a small-cap Western Australian miner into a global gold giant.

How has Northern Star Resources (ASX:NST) expanded under its current CEO?

Stuart Tonkin led Northern Star's expansion into a top-tier gold producer boasting three major production centres across Western Australia and Alaska, with a workforce of over 10,000.

How might the Northern Star Resources (ASX:NST) share price react to the CEO transition news?

n the short term, leadership uncertainty can sometimes create minor volatility, though the stock was trading at $18.81 at the time of reporting. Because Stuart Tonkin is giving an exceptionally long notice period into FY27, market anxiety is likely to be minimised.

How does this executive transition change the medium-term investment thesis for Northern Star Resources (ASX:NST)?

The core investment thesis remains intact but shifts from an era of founder/long-term builder growth to execution risk under a new leader.

Image for illustrative purposes only. Not a real photo.

Northern Star Resources CEO Stuart Tonkin to step down

Q: What major projects will Stuart Tonkin oversee before leaving Northern Star Resources (ASX:NST)?

Before stepping down in early FY27, Stuart Tonkin will remain in charge to oversee the critical commissioning of the KCGM Fimiston Mill expansion. He will also ensure the formal conclusion of the company's current multi-year strategic plan

Written by Heidi Cuthbert Published May. 21 2026Last Updated May. 21 2026

Northern Star Resources (ASX:NST) announced that Managing Director and CEO Stuart Tonkin intends to step down during the first quarter of FY27.

Tonkin will remain in his current role until that time, ensuring the conclusion of the company’s current strategic plan and overseeing the critical commissioning of the KCGM Fimiston Mill expansion.

His departure marks the end of a highly successful 13-year tenure, during which he served as COO, CEO, and managing director.

Under Tonkin’s leadership, Northern Star experienced exponential growth, transforming from a small-cap, Western Australian-focused miner into a global gold giant.

The company now boasts three major production centres and employs over 10,000 staff and contractors across Western Australia and Alaska.

Tonkin's legacy includes a leading safety record and a series of transformative acquisitions, integrations, and operations, including Jundee, Pogo, Kalgoorlie Consolidated Gold Mines, the Saracen Minerals merger, and the recent takeover of De Grey Mining, which added the Hemi development project to the group's portfolio.

Northern Star Chairman Michael Chaney expressed gratitude for Tonkin’s "phenomenal efforts", noting that he leaves the company in an exceptional position with a legacy that will benefit stakeholders for decades.

The board has commenced a formal succession process, appointing a leading global search firm to evaluate both internal and external candidates to ensure an orderly transition over the coming months.

At the time of reporting, Northern Star Resources’ share price was $18.81.