NOt sure I would be afraid. Many of these cars were leased to begin with.. Multiple owners isn't itself a need to worry. I would be curious about the latest records available, recall history, major/minor services etc.
There is a curious gap (year wise) between owners 2 + 3...
CARFAX is only as good as the information they have been provided.
If the car looks good, passes a PPI and is a fair price, go for it. Then again, there might be "identical" cars with less history. Your call