On Wednesday, in twin announcements, it was revealed first that Qualcomm (NASDAQ:QCOM) Chief Financial Officer Bill Keitel has decided to step down from his post, effective March 11 -- but also that Qualcomm has found a replacement already.

That's the second revelation: Semiconductor equipment maker Applied Materials (NASDAQ:AMAT) announced today that its CFO -- George S. Davis -- is also stepping down, effective March 8. Three days later, though, he'll be stepping into Keitel's shoes, and assuming the post of CFO for Qualcomm.

For his part, after retiring, Keitel will continue to work for Qualcomm as a "special advisor to the CEO" for the rest of this year.

As for Applied Materials, it appears to be on the losing end of this game of executive musical chairs, having no one picked out just yet to replace Davis. The company noted that it hopes to name a successor sometime "in the coming weeks."

Nonetheless, Applied Materials shares seem none the worse for wear, closing 0.5% higher Wednesday, at $12.86, then tacking on further gains in the after-hours market. Qualcomm, meanwhile, benefiting from a simultaneous announcement of strong Q4 earnings,  posted a small rise during regular trading (0.1%), then leapt sharply after hours, and after the announcements were made. Qualcomm was last reported up 6.4%, at $67.60.

Fool contributor Rich Smith has no position in any stocks mentioned. The Motley Fool owns shares of Qualcomm. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.