$PURE 424B3 SEC Filings

Filed On	Filing
15 Jun 2020	424B3
13 Mar 2020	424B3
17 Dec 2019	424B3
14 Jun 2019	424B3
07 Mar 2019	424B3
14 Dec 2018	424B3
13 Nov 2018	424B3
14 Jun 2018	424B3
15 Mar 2018	424B3
20 Dec 2017	424B3
20 Dec 2017	424B3
06 Sep 2017	424B3
08 Jun 2017	424B3
03 Mar 2017	424B3
15 Feb 2017	424B3
12 Jan 2015	424B3
15 Dec 2011	424B3
31 Mar 2008	PROSPECTUS SUPPLEMENT NO 2
18 Mar 2008	424(B)3 SUPPLEMENT NO 1 TO 333-148727
28 Jan 2008	FINAL PROSPECTUS FILED PURSUANT TO 424(B)(3)