Lock up period over, page-18

I could be wrong, but I don't think the lock up period applies to Sabby. I think it was intended to protect the underwriter from existing owners (specifically company insiders) dumping their shares in the IPO. The details are in the prospectus, but I haven't read that in while and don't remember how far the lock up extended.
SEC filings suggest to me Sabby has been selling/transferring some shares, but a net increase in holding overall.

Any way, it is interesting that the only substantial holder we have on the register is accumulating!