Akre David A – Insider Transactions

Ticker	Owner	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
NTR	Akre David A	Vice Chairman/Co-CEO	Aug 31 '07	Buy	1.14	1,000	1,140	102,903	Sep 04 12:00 AM
NTR	Akre David A	Vice Chairman/Co-CEO	Aug 30 '07	Buy	1.10	3,100	3,419	101,903	Aug 30 12:00 AM
NTR	Akre David A	Vice Chairman/Co-Chief Exe Ofr	Apr 05 '07	Buy	2.42	7,500	18,134	99,803	Apr 05 12:00 AM
NTR	Akre David A	Co-Chief Executive Officer	Dec 06 '05	Buy	5.65	5,000	28,243	92,303	Dec 06 12:00 AM

Insider Trading & Congressional Trades