Looks to me like the exhibitors list is the only place where Labskin is showing.
At the top of the list there are 11 logos that appear under 'sponsors' ... 3 bigger and 8 smaller... no links and half of them are so small and poorly rendered you can't read them anyway. Looks like a blag to have your 'exhibitor' listing upgraded with a logo at the top for a few bob. I wouldn't bother.
Main brand presence on the front page appears to be 'partners' ... no doubt an extra few bob.
the big sells can average out ... eg: if a huge sell order from Cavendish gets filled at say, 1750 ... the they can shift some higher, some at 1750 and some lower all spread over time.
ARB doesn't need to drop as much as BTC at this mcap but often shadows movements as a lot of punters treat it as some kind of tracker... creates buying opportunities.