Recent selling could be a previous placing subscriber irrespective of previous volumes some may still hold. In theory I would have doubted H1 is a stock you could short however having just opened an account with Trading 212 they have an option to lend stock. Only reason that you can lend stock with them is so it can cover short positions however I have a tiny position there so haven't checked this theory yet. I am sure the so called sophisticated investors, hedge funds etc have the ability to short - only takes someone with a few hundred million to lend them for a fee. I would also think that any parties working in cohorts would be deemed as market manipulators (joke on aim)
And prolific helium play and noble on par to be worth billions/only scratched the surface /evidence says prolific/ unique unlike anything else in the world... hmmm not too bad at all