X0202 4 2006-02-04 0 0000875623 SPARTA INC /DE NONE 0001201573 MCCARTER RONALD S 25531 COMMERCENTRE DR. #120 LAKE FOREST CA 92630-8873 1 1 0 0 Sector President Common Stock 2006-02-03 2006-02-03 4 A 0 402 39.15 A 80466 I By Retirement Plan Common Stock 2006-02-23 2006-02-23 4 A 0 237 42.53 A 17670 D Employee Stock Option (right to buy) 42.12 2006-03-01 4 A 0 752 42.12 A 2005-12-21 2009-12-21 Common Stock 752 10032 D Grant of shares awarded via 2005 annual profit sharing contribution approved by the Board of Directors on 2/3/06. Represents average stock price based on shares purchased throughout 2005 Profit Sharing Plan Year. Stock bonus from issuer. Represents exercise price for acquisitions and market price for dispositions. Stock Option award for business performance during the second half of fiscal year 2005. Final calculations and approval for quantity of options on letter dated 3/1/06. Reflects grant date. Options are exercisable 20% on the first anniversary, 30% on the second and fully exercisable after the third year anniversary. Options expire on the fourth anniversary of the grant date. /s/ Jerry R. Fabian as Attorney in Fact for Ronald S. McCarter 2006-03-06