No, and either do you so don't pretend you do .Some guys choose not to run drills for various reasons, because they will perform poorly, agent advises them not to etc. He had a core muscle injury I've heard, do we know how much it affected his 40 time? of course not, some guys can play through injuries for an entire season, other guys can't. You can't speculate to know how fast he is. I tried looking for some sort of PFF this year to see if they tracked how fast he was on the field but I couldn't find anything.
He averaged a little over 10 ypc this season, not exactly burner numbers. Looking at his college numbers 11.8 and 13.6 again not exactly burner numbers. Chark by comparison averaged 18 and 22 ypc in college and 13.8 and 13.3 in the NFL