Meet Kevin and Gary Black seem to think this is why EM stopped selling shares last week outside of his prearranged 10b5-1 plan. The theory is that if EM came into Material Non-Public Information, like a stock split on 12/9, he could no longer sell shares as he pleased. He would be limited to the 10b5-1 plan sales.By now Elon is fully aware of the 12/9 meme (through Whole Mars e.g). If this has all been a game of seeing faces on Mars, I wonder if in an ironic twist Elon actually organizes something for 12/9 in response to all the meme-ing.
The MNPI could also be something like a credit upgrade or an acquisition though.