Activist shareholder Elliott Investment Management has secured a AU$1 billion stake in Northern Star Resources (ASX:NST) and is using its new position to push for a strategic review that could lead to a sale of the company.
Following its investment, the hedge fund published a presentation on Monday targeting the Australian mining company for what it described as "a pattern of operational missteps, cost overruns and inconsistent strategic direction." Elliott suggested Northern Star explore all strategic alternatives to boost its value, including a potential sale.
Elliott said the miner should hire a "world-class external CEO" after Stuart Tonkin's recent decision to step down as managing director. Tonkin, who has also served as CEO and chief operating officer, will remain with the company until a successor is named and the KCGM Fimiston Mill expansion is commissioned.
The activist investor questioned management's ability to execute the KCGM mill ramp-up and the development of the Hemi project, citing "protracted difficulties."
Elliott also criticized the company's capital allocation as "inconsistent and reactive," arguing this approach has resulted in a valuation that understates Northern Star's underlying assets.
Some analysts agree on the need for an overhaul. Pendal Group's Brenton Saunders concurred with most of Elliott's points, noting that the activist investor's approach is "somewhat unorthodox" but effective, Reuters reported.
"The company does need to be shaken up," Saunders reportedly said.
In response, Northern Star said it is actively searching for a new managing director and that the KCGM mill remains on track for commissioning early in the 2027 fiscal year.
The company added that its board "regularly reviews corporate opportunities," including "potential broader M&A opportunities," alongside its financial adviser, Goldman Sachs.
"The Northern Star Board and management team frequently engage with our shareholders to hear their perspectives and welcomes the opportunity for constructive dialogue with Elliott, as a shareholder of the company," Northern Star said.
The Australian mining company's shares jumped 13% on Tuesday.



