"Why did you not show the Insider purchases from the same site?"
Because the subject was institutional holdings, not insider holdings.
"You will see the Dr purchased the shares back."
The 50,000 share purchase by the Dr was a foolish mistake. It resulted in him having to disgorge almost $90,000 in profits on a prior sale to the company based on something called the "Short-Swing Profit Rule" which basically says that if an insider sells shares at a profit and then repurchases shares at a lower price within 6 months, he must disgorge the profits on the prior sale to the company up to the amount of shares repurchased. He should've known that.