Big transactions15 Jun 2018 14:53
Once I tried to buy shares for £20k but I was getting very poor quota.
So I tried £10k - and quota was much better.
So when I see £200k marked as sell, I assume it is the same issue. It is a buy, but price was lowered due to amount traded. If it was sell it would be much lower than normal Sell price.
And... why would you sell 200k when price is at the bottom? :)