1、UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 10-K(Mark One)ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31,2006ORTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934C
2、ommission file number:1-10864UNITEDHEALTH GROUP INCORPORATED(Exact name of registrant as specified in its charter)MINNESOTA41-1321939(State or other jurisdiction ofincorporation or organization)(I.R.S.EmployerIdentification No.)UNITEDHEALTH GROUP CENTER9900 BREN ROAD EASTMINNETONKA,MINNESOTA55343(Ad
3、dress of principal executive offices)(Zip Code)Registrants telephone number,including area code:(952)936-1300Securities registered pursuant to Section 12(b)of the Act:COMMON STOCK,$.01 PAR VALUENEW YORK STOCK EXCHANGE,INC.(Title of each class)(Name of each exchange on which registered)Securities reg
4、istered pursuant to Section 12(g)of the Act:NONEIndicate by check mark if the registrant is a well-known seasoned issuer,as defined in Rule 405 of the SecuritiesAct.Yes No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d)of theAct.Yes No
5、 Indicate by check mark whether the registrant(1)has filed all reports required to be filed by Section 13 or 15(d)ofthe Securities Exchange Act of 1934 during the preceding 12 months(or for such shorter period that the registrantwas required to file such reports),and(2)has been subject to such filin
6、g requirements for the past90 days.Yes No Indicate by checkmark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not containedherein,and will not be contained,to the best of registrants knowledge,in definitive proxy or information statementsincorporated by reference in Pa