Symantec could face calls from unhappy shareholders for a break-up of the company, according to a New York Post report.
The paper said that one particular activist shareholder has been buying up stock, and may put pressure on the board to split the company, while others have been actively talking to potential suitors.
The heart of the problem appears to be that the unhappy shareholders believe that Symantec is undervalued owing to its inability to integrate acquisitions such as Veritas, which it bought for $13.5bn six years ago.
Regulatory rules stipulate that investors with 25 per cent or more of the stock can call for a special meeting at any time. However, new investors with between one and five per cent of stock will be required to reveal their intentions on 15 November.
A source told the New York Post that Symantec may decide to minimise the tax burden by spinning off units, rather than selling a division outright, the expectation being that potential interested parties would buy these units within a year of being spun out.
McAfee, Symantec's biggest rival, was acquired by Intel for $7.6bn earlier this year, leaving Symantec by far the largest independent security firm in the market.
Symantec declined to comment on the report.
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