DII funds are scamming the markets

I will keep this short, DII are passing the stock around from one to another.
Ever wondered how an 8% institutional stake in a stock vanishes overnight, only for a new fund under the same AMC to instantly pop up with 8.7%?

It looks like mutual funds are secretly swapping thousands of crores in stock behind closed doors. None of these funds have a vision they are doing favours for others pumping and dumping stocks.