No worries! I am not even remotely concerned... I guess "amused" would be a better adjective!
I have seen these games before over the years with JNSH's share price...
Someone buys a decent position over weeks, then rapidly sells some of them at a loss to take out the bids and cause a huge (and temporary) drop in the share price hoping to scare out a bunch of shares and reload lower...
The company has <200M shares in the AS, a PE<1, and is profitable and growing...