It accounts for part of the demand (higher prices) during that time as well.  Also, you don't generally sit on the sideline with 2/3 of a board seat in any company after 6 months of slowly buying in without pushing for the full board seat.  That leaves far less demand to be accounted for by variance if you were trying to price the market.

"Does he have any effect on asicminer?"

Seeing as he owns ~0.83% of the company, yes he has a nominal effect.  He owns enough to move the already-thin market.  If he decided he didn't want to be a board member tomorrow and sold on the exchange, it would send the price through the floor, making shareholders more resentful, which (in a company with normal capital structure) may be enough to call a board meeting and replace the CEO.  That probably won't happen here, as most shareholders still seem relevantly confident that FC is the man for the job (just the the job is becoming more complex and also idk if shareholders have voting rights or if AM "shares" aren't actually shares at all but rather depository receipts, which IIRC is the actual case here).