Research In Motion (RIMM) says it expects the potential impact of any restatement on preliminary fourth-quarter operating results will be immaterial.
The company said late Friday it plans to disclose preliminary fourth-quarter results on April 11.
RIM had originally anticipated updating its filings with the Canadian securities regulatory authorities and the Securities and Exchange Commission before the end of its fiscal year on March 3.
"Despite best efforts, the Company determined that additional time is required for the Company and its advisors to prepare the updated filings and for the independent auditors to complete their review of those filings."
RIM has had communications with both staff of the Ontario Securities Commission and staff of the SEC about its internal review.
Shares of RIM closed Friday up 64 cents to $136.49.