Arce Gabriel Hammond

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
PSTR	$4.62	1,731	$7,997.22	130,022	2010-06-11	Filing
PSTR	$4.62	2,215	$10,233.30	779,183	2010-06-11	Filing
PSTR	$4.62	5,100	$23,562.00	965,514	2010-06-11	Filing
PSTR	$4.70	330	$1,551.00	11,681	2010-06-10	Filing
PSTR	$4.70	888	$4,173.60	45,782	2010-06-10	Filing
PSTR	$4.70	2,665	$12,525.50	131,753	2010-06-10	Filing
PSTR	$4.70	1,777	$8,351.90	781,398	2010-06-10	Filing
PSTR	$4.70	5,660	$26,602.00	970,614	2010-06-10	Filing
PSTR	$4.63	750	$3,472.50	12,011	2010-06-09	Filing
PSTR	$4.63	2,372	$10,982.36	46,670	2010-06-09	Filing
PSTR	$4.63	1,363	$6,310.69	134,418	2010-06-09	Filing
PSTR	$4.63	4,743	$21,960.09	783,175	2010-06-09	Filing
PSTR	$4.63	9,228	$42,725.64	976,274	2010-06-09	Filing
PSTR	$4.64	551	$2,556.64	12,761	2010-06-08	Filing
PSTR	$4.64	551	$2,556.64	49,042	2010-06-08	Filing
PSTR	$4.64	515	$2,389.60	135,781	2010-06-08	Filing
PSTR	$4.64	1,101	$5,108.64	787,918	2010-06-08	Filing
PSTR	$4.64	2,718	$12,611.52	985,502	2010-06-08	Filing
PSTR	$4.87	71	$345.77	15,442	2010-06-03	Filing
PSTR	$4.87	81	$394.47	49,707	2010-06-03	Filing