The company's earnings reflect the ongoing impacts of the Covid-19 pandemic on Sanford's sales channels, primarily to food service, as already disclosed to the market early in September.
"This result is a continuation of the sales revenue trend which we advised the market of in September," it said.
However, the fourth-quarter profitability was further impacted by poorer-than-expected wildcatch performance in September, driven by a lower-than-expected Patagonian toothfish catch and a lower "fair value" of salmon stock with expected future sales pricing under pressure.
"The result this year is disappointing, and our markets continue to be challenging and difficult to predict because of the evolving Covid-19 situation," the company said.
"Despite this our cash collection remained satisfactory through the year and our balance sheet is strong," it said.
"We continue to assess and make changes to re-position the business to be more adaptable and match our costs to the new environment."
Sanford shares last traded at $5.01, down 33 cents or 6.2 per cent from Wednesday's close.