Iii Malachi Aaron Mixon

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
PKOH	$22.52	400	$9,008.40	25,600	2010-12-16	Filing
PKOH	$22.50	100	$2,250.00	26,000	2010-12-16	Filing
PKOH	$22.49	500	$11,247.00	26,100	2010-12-16	Filing
PKOH	$22.44	500	$11,220.00	26,600	2010-12-16	Filing
PKOH	$22.38	100	$2,238.00	27,100	2010-12-16	Filing
PKOH	$22.36	100	$2,236.00	27,200	2010-12-16	Filing
PKOH	$22.34	500	$11,171.80	27,300	2010-12-16	Filing
PKOH	$22.30	200	$4,460.20	27,800	2010-12-16	Filing
PKOH	$22.30	100	$2,230.00	28,000	2010-12-16	Filing
PKOH	$22.30	900	$20,065.50	28,100	2010-12-16	Filing
PKOH	$22.28	400	$8,912.04	29,000	2010-12-16	Filing
PKOH	$22.28	500	$11,140.00	29,400	2010-12-16	Filing
PKOH	$22.27	300	$6,682.44	29,900	2010-12-16	Filing
PKOH	$22.27	100	$2,226.63	30,200	2010-12-16	Filing
PKOH	$22.26	400	$8,904.00	30,300	2010-12-16	Filing
PKOH	$22.25	1,300	$28,925.00	30,700	2010-12-16	Filing
PKOH	$22.23	100	$2,223.00	32,000	2010-12-16	Filing
PKOH	$22.22	400	$8,888.00	32,100	2010-12-16	Filing
PKOH	$22.22	100	$2,221.72	32,500	2010-12-16	Filing
PKOH	$22.21	300	$6,663.00	32,600	2010-12-16	Filing