Arce Gabriel Hammond

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
PSTR	$4.91	732	$3,594.12	38,430	2010-07-07	Filing
PSTR	$4.91	4,468	$21,937.88	96,957	2010-07-07	Filing
PSTR	$4.91	2,978	$14,621.98	754,135	2010-07-07	Filing
PSTR	$4.91	8,178	$40,153.98	898,266	2010-07-07	Filing
PSTR	$5.08	1,020	$5,181.60	39,162	2010-07-06	Filing
PSTR	$5.08	3,061	$15,549.88	101,425	2010-07-06	Filing
PSTR	$5.08	2,041	$10,368.28	757,113	2010-07-06	Filing
PSTR	$5.08	6,122	$31,099.76	906,444	2010-07-06	Filing
PSTR	$4.96	244	$1,210.24	40,182	2010-07-02	Filing
PSTR	$4.96	3,001	$14,884.96	104,486	2010-07-02	Filing
PSTR	$4.96	2,001	$9,924.96	759,154	2010-07-02	Filing
PSTR	$4.96	5,246	$26,020.16	912,566	2010-07-02	Filing
PSTR	$4.88	81	$395.28	42,195	2010-06-23	Filing
PSTR	$4.88	571	$2,786.48	121,626	2010-06-23	Filing
PSTR	$4.88	948	$4,626.24	770,519	2010-06-23	Filing
PSTR	$4.88	1,600	$7,808.00	943,084	2010-06-23	Filing
PSTR	$4.84	468	$2,265.12	42,276	2010-06-22	Filing
PSTR	$4.84	1,405	$6,800.20	122,197	2010-06-22	Filing
PSTR	$4.84	937	$4,535.08	771,467	2010-06-22	Filing
PSTR	$4.84	2,810	$13,600.40	944,684	2010-06-22	Filing