$ATRA SEC Filings

Filing Filed On
AMENDMENT NO. 2 TO FORM S-1 09 Jul 2015
AMENDMENT NO. 1 TO FORM S-1 07 Jul 2015
AMENDMENT NO. 1 TO FORM S-1 09 Feb 2015
S-1/A 07 Oct 2014
AMENDMENT NO. 2 TO FORM S-1 26 Sep 2014
AMENDMENT NO. 1 TO FORM S-1 10 Jul 2014