Yeah judging from market response..... the big kid market ..... I would say it was to do with buy sell and th company was involved as they are the only ones that do not have to file for such a transaction as the buyer.
BREAKING DOWN Open-Market Transaction
This is simply an order placed by an insider to buy or sell shares according to the rules and regulations set out by the SEC. The importance of an open market order is that the insider is voluntarily buying or selling shares at or close to the market price.
In a separate context, an open-market transaction can refer to a deal conducted at arm’s length between two parties. This usage is particularly related to the sale or merger of a business interest or assets.
That's my opinion after looking into everything, the seller, business, their history, the sales of Plush Fashion as reported by Bloomberg the late ER PR and date of it seems to me personally was for this Thursday to give time for all that needed to happen before ER to be done. etc etc
And that is just my feeling weighing everything.
Absolutely nothing else makes sense with no other filing as to who bought those shares in that transaction.