A. Bradley Cleveland

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
PRLB	$31.06	4,500	$139,783.50	83,500	2012-10-17	Filing
PRLB	$31.00	4,500	$139,500.00	83,500	2012-10-16	Filing
PRLB	$31.00	4,300	$133,300.00	88,000	2012-10-11	Filing
PRLB	$31.07	200	$6,213.00	92,300	2012-10-10	Filing
PRLB	$32.69	4,500	$147,127.05	88,000	2012-10-08	Filing
PRLB	$33.81	400	$13,523.00	92,500	2012-10-03	Filing
PRLB	$33.35	4,100	$136,733.77	92,900	2012-10-03	Filing
PRLB	$33.74	4,500	$151,821.45	92,500	2012-10-02	Filing
PRLB	$33.14	20,000	$662,852.00	1,206,182	2012-09-27	Filing
PRLB	$33.91	4,500	$152,586.00	97,000	2012-09-25	Filing
PRLB	$33.07	4,500	$148,801.50	97,000	2012-09-24	Filing
PRLB	$32.61	4,500	$146,754.00	101,500	2012-09-18	Filing
PRLB	$32.60	4,500	$146,710.80	101,500	2012-09-17	Filing
PRLB	$32.48	4,500	$146,149.20	106,000	2012-09-11	Filing
PRLB	$32.61	4,500	$146,762.10	106,000	2012-09-10	Filing
PRLB	$31.00	4,500	$139,500.00	110,500	2011-09-06	Filing
PRLB	$31.01	4,500	$139,539.15	110,500	2012-09-04	Filing
PRLB	$31.54	20,000	$630,768.00	1,226,182	2012-08-30	Filing
PRLB	$31.78	4,000	$127,101.60	115,000	2012-08-29	Filing
PRLB	$31.77	4,000	$127,066.80	115,000	2012-08-29	Filing