Any idea about the appropiate signing bonus, based on the following:

-Fortune 500 company

-Base Salary 140-150K per year

-Experience of individual 8-10 years

Mark's picture

Signing bonuses are one of the most individually based compensation factors.  They could be wildly different at two different firms of roughly the same size in the same industry with the same job for the same person.

WILDLY DIFFERENT.  There is no formula.

There is no reasonable answer to your question.