Silver Lake Said to Work With Microsoft on Bid for Yahoo Stake

Silver Lake, a private-equity firm, is working with Microsoft Corp. to bid for a minority stake in Yahoo! Inc., people familiar with the matter said.

Andreessen Horowitz, a venture-capital firm, is also weighing a possible bid for Yahoo and hasn’t decided whether to join the Silver Lake-led group, said another person, who asked not to be identified because the deliberations are private. Yahoo’s advisers have asked that bids be submitted this week, two other people said last week.