$PRTA SEC Filings

Filing Filed On
FORM 3 24 Jul 2013
FORM 3 22 May 2013
FORM 3 02 Apr 2013
FORM 3 02 Apr 2013
FORM 3 19 Mar 2013
FORM 3 28 Dec 2012
FORM 3 21 Dec 2012
FORM 3 21 Dec 2012
FORM 3 21 Dec 2012
FORM 3 21 Dec 2012
FORM 3 21 Dec 2012
FORM 3 21 Dec 2012
FORM 3 21 Dec 2012