BUZZ-Australia's Northern Star falls as investor Elliott presses for rebuilding shareholder value

** Shares of Northern Star Resources NST.AX fall 4.2% to A$17.77, their lowest level since March 24

** Activist investor Elliott Investment Management on Wednesday called on the gold miner to act immediately for restoring shareholder value, citing underperformance by strengthening its board and undertaking a strategic review

** Stock on track for its worst day in a week, if moves hold

** Australian gold stocks .AXGD down 3.6% in current session

** Stock down 33.5%, YTD