H4 Extension In process with previous employer

My H1B extension was applied by Employer A in September 2020. Employer A also applied for H4 extensions for my wife and son. I got my H1 approved in December 2020. My family’s H4 is still in process. I changed from Employer A to Employer B in April 2021. My family’s H4 is still in process. Do I simply need to wait for their H4 to be approved or should I re-apply their H4 with Employer B now? My wife’s H4 has expired and she is currently here based on the H4 receipt notice.

Please help.

Just wait for the H4 approval, not need to reapply. Next time when you do H1B extension with your current employer, you can apply H4 extension for your dependents.