Extract Multi-line Data Based on prefix

Hi I have a cell which is multi-line i need to get text after specific prefix

Primary Examiner: STNFORD, CHRITOPHER J

i only wish to extract BOLD text from entire cell. this prefix can be repeated many time then output need to be stacked in same cell.
attached is the sample file with desired VBA output.

can anyone help with VBA
regards
Monika