Activist shareholder and antique Rear Window editor Stephen Mayne is still stewing over Rio Tinto’s failures. Not just to protect Juukan Gorge, but also to disclose the size of the protest votes against its remuneration report before debate at last May’s AGM.

Under the ASX’s listing rules companies aren’t obliged to disclose proxy voting positions before an AGM. However, doing so arguably provides opportunity for more informed debate on the day.