X0202 4 2006-02-14 0001103345 BEACON POWER CORP BCON 0001247735 LAZAREWICZ MATTHEW L C/O BEACON POWER CORPORATION 234 BALLARDVALE STREET WILMINGTON MA 01887 0 1 0 0 Chief Technical Officer Common Stock 2006-02-14 4 A 0 74422 1.88 A 348468 D The securities described in this Form 4 are restricted stock units and are issued in lieu of cash compensation. The shares will vest as follows: 18,606 on May 19, 2006, 18,606 on May 26, 2006, 18,606 on August 18, 2006 and 18,604 on November 17, 2006. Heather L. Duval as attorney-in-fact 2006-02-16