stock manipulation

As a holder of EWC over the last year I have noticed anomiley's when going through each days trades.
So many small volume sales ranging from 1 to 41 shares with too many to be overhang from previus orders at the close of day effecting the closing price for the day.
Odd small repetitive numbers during the day are either people dumping or trying to put a cap the price.
In particular XT cross referencing trades between Brokers.
It is very obvious that some traders or Brokers are manipulating the market to hold a cap on a number of stocks pushing the price down for a better entry.
Not just EWC but others that I could name .
How does this work without the ASX coming down with a feather duster.
I am also holding CXY & the same applies.


Holding ; CXY EWC NGF NXS