Arce Gabriel Hammond

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
PSTR	$4.71	152	$715.92	40,588	2010-06-29	Filing
PSTR	$4.71	2,302	$10,842.42	111,377	2010-06-29	Filing
PSTR	$4.71	1,752	$8,251.92	764,604	2010-06-29	Filing
PSTR	$4.71	4,206	$19,810.26	925,313	2010-06-29	Filing
PSTR	$4.72	606	$2,860.32	40,740	2010-06-28	Filing
PSTR	$4.72	1,363	$6,433.36	113,679	2010-06-28	Filing
PSTR	$4.72	1,347	$6,357.84	766,356	2010-06-28	Filing
PSTR	$4.72	3,316	$15,651.52	929,519	2010-06-28	Filing
PSTR	$4.83	263	$1,270.29	7,532	2010-06-25	Filing
PSTR	$4.83	300	$1,449.00	41,421	2010-06-25	Filing
PSTR	$4.83	5,043	$24,357.69	115,292	2010-06-25	Filing
PSTR	$4.83	1,798	$8,684.34	767,845	2010-06-25	Filing
PSTR	$4.83	7,404	$35,761.32	932,090	2010-06-25	Filing
PSTR	$4.73	474	$2,242.02	7,795	2010-06-24	Filing
PSTR	$4.73	474	$2,242.02	41,721	2010-06-24	Filing
PSTR	$4.73	1,404	$6,640.92	120,335	2010-06-24	Filing
PSTR	$4.73	948	$4,484.04	769,643	2010-06-24	Filing
PSTR	$4.73	3,300	$15,609.00	939,494	2010-06-24	Filing
PSTR	$4.88	71	$346.48	8,269	2010-06-23	Filing
PSTR	$4.88	81	$395.28	42,195	2010-06-23	Filing