The newspaper publisher's share price sank as low as 55.5p today, giving the company a market capitalisation just over £150m.
A year ago, its share price was 10 times as high at 557p, representing a spectacular collapse for the publisher. Its shares had dropped below half of that by April this year, before a brutal sell-off at the end of June when the company issued a profits warning.
As well as the Sunday Mirror and The People, Trinity Mirror also owns a number of regional newspapers such as the Birmingham Mail and the Liverpool Echo.