Can someone on H1B COS to H4 without EAD with approved I-140

I’m on H1B, and my husband is planning to change his status to be my dependent (H4) but his I-140 is approved. Will he lose his approved I-140 because of this COS ?

No. PERM/I-140 is for future/Green Card job and do not get impacted even if the beneficiary change the status.