The 16.8k trade closing was done to close out puts, not buy them as a downside bet. That is why the open interest declined sharply on those hopelessly OTM puts. You may have noticed they traded at $.10 per underlying share and likely cost the guy 5cents a share to do the trade... why would he bother to cover a short (sold) put? The effect, for that dealer or trader, is to free up leverage capacity.
It would not surprise me if that was Ackman's fund... they were counting on all of their bs launched at HLF to spiral the shares down to zero by now... better to get out with a net $.05/share than the nada they will be worth at expiry.
Or, could it be that you are Ackman or his trader, trying to make pretend that you are so stupid as to originate (buy) new puts with a $15 strike such that even dumber fheads will be spooked and sell out 25 share long posaitions here? ROFLOL
It would be a net positive, because the sales were to the bid side. That guy who sold the puts collected 250k the past two days on contracts that will never be in the money. Or it is a hedgefund simulating a position as a hedge, the $15 puts have no investment value (the $25's might).