CAPP F WILLIAM [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
07/21/2010	BEACON POWER CORP	BCON	Grant	Stock Option (Right to Buy)	523.3k	$0.45	$233.4k	07/21/2010
07/21/2010	BEACON POWER CORP	BCON	Grant		220.1k	$0.00	$0	07/21/2010
04/26/2010	BEACON POWER CORP	BCON	Grant	Stock Option (Right to Buy)	450k	$0.45	$200.7k	04/26/2010
04/26/2010	BEACON POWER CORP	BCON	Disposition	Common Stock	632.9k	$0.00	$0	04/26/2010