In a brief statement yesterday, the company said it would "decide on the early departure of the President and CEO" and the appointment of his replacement at a meeting Wednesday.
The company is due to report its third-quarter results next Thursday.
Loescher, 55, has led the company since 2007, but his pending departure comes just a few days after the surprise announcement of a profit warning.
Last Thursday, it said it no longer expected to reach a profit margin of at least 12 percent by the 2014 business year.
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After Thursay's news, Loescher was still insisting he wanted to finish the job he had started.
"I have a contract until 2017 and Siemens more than ever needs a captain," he said in an interview published in yesterday's edition of the German daily Sueddeutsche Zeitung. He was not the kind of person to abandon ship, he added.
The company's supervisory board however, chaired by Gerhard Cromme, has decided to put him ashore.