Artisan is an LLC owned by the Johnson and Ziegler families. As of last June they owned over 10% of the outstanding. Since then they have sold down to 7+ % for a reduction of over 1 million shares. You can see it in the newest SEC form 13G which shows the current holdings and you have to then compare it to the last 13G.
Interestingly if you file reports like this to the SEC electronically you have to do it right away but if you choose to file by paper the SEC allows 45 days for the mail to be delivered! This is how the SEC protects the small investor (NOT!). They are towel girls for the bad guys. That is why your IRA keeps on losing money. Despite what the kids on this board would like anyone or themselves to believe. Every year the little guys lose and the big guys win because the big guys write the regulations.