Fit and Blackrocks ownership changes (aka: How to waste ones morning. ;) ZZZZZZZZZZZZZZZZzzzzzzzzzzzzzzzzzzzzzzz https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001447599&type=SC+13G&dateb=&owner=exclude&count=40 https://www.sec.gov/Archives/edgar/data/1364742/000021545716004570/fitbit.inc.class.a.2015.txt Filing Date 2016-01-28 3032094 https://www.sec.gov/Archives/edgar/data/1364742/000021545716006006/fitbit.inc.class.a.txt Filing Date 2016-03-10 6378429 https://www.sec.gov/Archives/edgar/data/1364742/000021545717002283/fitbit.inc.class.a.txt Filing Date 2017-01-30 9839685 https://www.sec.gov/Archives/edgar/data/1364742/000021545717003002/fitbit.inc.class.a.txt Filing Date 2017-04-10 5231337 https://www.sec.gov/Archives/edgar/data/1364742/000021545718004664/us33812l1026_013118.txt Filing Date 2018-02-01 12861670