Solomon Lew's Premier Investments has requested a copy of Myer’s register of members.
Premier has requested this in order to consider writing to Myer’s members in relation to any resolutions proposed at Myer’s AGM this year.
The move follows a long-running campaign against Myer by Premier Investments chairman Solomon Lew.
A major shareholder in Myer, Lew has demanded a management overhaul of the department store in the wake of weak results.
Myer recorded a 15.9% drop in sales for the 12 months to June 30.
Myer saw total sales of $2.5 billion, as widespread store closures and sharp declines in foot traffic hit results.
Earnings before interest, tax, depreciation and amortisation (EBITDA) fell to $305.3 million, declining 41.6%.
Myer saw a net loss after tax of $11.3 million, with a 61% surge in online sales to $422.5 million not enough to bolster fortunes.
Premier Investments deacribed the results were "disastrous and shameful", in a statement to the market last month.
"Two years into John King’s tenure – it’s clear the Myer turnaround is in tatters," the statement read.
"It’s now time for the CEO to follow the Board through the exit."