The cuts, which will reduce Sun's 37,500-person work force by 11 percent to 13 percent over the next six months, will cost the Santa Clara, Calif.-based company from $340 million to $500 million over the next several quarters, company officials said.
Sun executives expect the plan, which also includes selling real estate and exiting leases, to save the company from $480 million to $590 million once it is fully implemented sometime around June 2007.
The company, a major supplier of computer servers that run corporate networks and Web sites, was once a Wall Street darling but has struggled since the dot-com bubble burst in late 2000. Servers that run processors based on Intel Corp. designs and Microsoft Corp.'s Windows or the free Linux operating systems have grown increasingly powerful, often performing the same jobs at a fraction of the cost of Sun products.
Investors have driven down Sun shares from a high of about $64 in September of 2000 to a range of about $3.50 to $5 over the past year. Some analysts have criticized Sun's management for not cutting costs more dramatically.
The announcement comes a month after Scott McNealy stepped down as Sun's chief executive, and it is one of the first major initiatives to be taken under the watch of Jonathan Schwartz, who was named to replace McNealy.
The company also said it planned to sell property it owns in Newark, Calif., and to exit leases at a site in Sunnyvale, Calif.
The cuts still don't reduce costs as deeply as some analysts have said is necessary. McNealy had argued against more drastic workforce reductions, saying talented employees are needed once business returns.
Sun shares rose 6 cents, or 1.3 percent, in extended trading following the release. Earlier they rose 8 cents, or 1.8 percent, to $4.63 in regular trading Wednesday on the Nasdaq Stock Market.