Does anyone knows why his name doesn't appear even once in the SEC S1 filing [1] for the IPO? He could have sold all his shares before the IPO, but thought it

Does anyone knows why his name doesn't appear even once in the SEC S1 filing [1] for the IPO? He could have sold all his shares before the IPO, but thought it was weird. [1] https://www.sec.gov/Archives/edgar/data/1288847/000119312514078791/d626745ds1.htm https://www.sec.gov/Archives/edgar/data/1288847/000119312514...