The recent option execution was a preplanned 10b5-1, so the sell new to cover taxes action was likely locked in. Due to the plan, it may not have been possible to sell those exact shares on Tuesday or Wednesday.This and that he is likely selling 10% of existing position AND selling to cover taxes in his new shares.
With those shares now rolled in to the Trust, we have no visibility on which lots were sold on Thursday nor going forward.