Change of employer within 6 months. Keeping priority date.

[skypemesm]

Hello,

I am currently working with employer B for 3 months and planning to switch to employer C. My original I-140 was approved with my first employer A and was transferred to employer B after working with employer A for 2 years.

Am I allowed to keep my original priority date if I switch to the new employer C after having worked with current employer B only for 3 months?

Thanks in advance for your valuable help,
SM.