Investors face an increased threat from low-ball or predatory offers over the holiday period and the Financial Markets Authority is encouraging the public to seek advice before selling investments.
The market watchdog said Stock & Share Trading Company had requested copies of investor registers from Tower, Dorchester Pacific and other issuers and could look to make an unsolicited offer to securities holders.
Stock & Share Trading Company has a registered office in Adelaide, Australia.
After a request from the FMA, Stock & Share agreed to include a warning with any unsolicited offers it put into the marketplace.
The warning advises investors to talk to a financial adviser or sharebroker to find out what their investments are worth before selling.