Arce Gabriel Hammond

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
PSTR	$4.83	375	$1,811.25	41,346	2010-06-25	Filing
PSTR	$4.83	5,161	$24,927.63	115,042	2010-06-25	Filing
PSTR	$4.83	1,868	$9,022.44	767,703	2010-06-25	Filing
PSTR	$4.83	7,404	$35,761.32	932,835	2010-06-25	Filing
PSTR	$4.73	474	$2,242.02	41,721	2010-06-24	Filing
PSTR	$4.73	1,423	$6,730.79	120,203	2010-06-24	Filing
PSTR	$4.73	948	$4,484.04	769,571	2010-06-24	Filing
PSTR	$4.73	2,845	$13,456.85	940,239	2010-06-24	Filing
PSTR	$4.61	81	$373.41	40,426	2010-07-01	Filing
PSTR	$4.61	1,641	$7,565.01	107,487	2010-07-01	Filing
PSTR	$4.61	678	$3,125.58	761,155	2010-07-01	Filing
PSTR	$4.61	2,400	$11,064.00	917,812	2010-07-01	Filing
PSTR	$4.71	81	$381.51	40,507	2010-06-30	Filing
PSTR	$4.71	2,249	$10,592.79	109,128	2010-06-30	Filing
PSTR	$4.71	2,771	$13,051.41	761,833	2010-06-30	Filing
PSTR	$4.71	5,101	$24,025.71	920,212	2010-06-30	Filing
PSTR	$5.06	81	$409.86	42,744	2010-06-21	Filing
PSTR	$5.06	1,363	$6,896.78	123,602	2010-06-21	Filing
PSTR	$5.06	756	$3,825.36	772,404	2010-06-21	Filing
PSTR	$5.06	2,200	$11,132.00	947,494	2010-06-21	Filing