Multiple H1B transfers + extensions at the same time

[venkatdabri]

Hello Friends,
I had accepted a job offer and they started my H1B transfer and extension for 3 years with an approved I-140 via premium processing. Another company gave a better offer and I had a few questions:

1. I know multiple H1B transfers can happen at the same time but can multiple extensions also be done using the same I-140? Will any of the companies ever get to know that this is the case?
2. When the transfer + extension is done in premium will the extension also happen within 15 days or will it just be the transfer?

[shervin143]

1. I know multiple H1B transfers can happen at the same time but can multiple extensions also be done using the same I-140? Will any of the companies ever get to know that this is the case?
>>> Not an issue.

2. When the transfer + extension is done in premium will the extension also happen within 15 days or will it just be the transfer?
>>> Transfer will come with the extension.