Prepared by MERRILL CORPORATION www.edgaradvantage.com
QuickLinks -- Click here to rapidly navigate through this document

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM 8-K

Current Report Pursuant to
Section 13 or 15(d) of
the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): March 13, 2001

UNITEDHEALTH GROUP INCORPORATED
(Exact name of registrant as specified in its charter)

Minnesota   0-10864   41-1321939
(State or other jurisdiction
of incorporation)
  (Commission
File Number)
  (I.R.S. Employer
Identification No.)
UnitedHealth Group Center
9900 Bren Road East
Minneapolis, Minnesota
 

55343
(Address of principal executive offices)   (Zip Code)

Registrant's telephone number, including area code: (952) 936-1300

N/A
(Former name or former address, if changed since last report.)





Item 7. Financial Statements and Exhibits

(c) Exhibits

Number

  Description
99   Cautionary Statements (incorporated by reference to Exhibit 99 of the Company's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2000)


Item 9. Regulation FD Disclosure

    On Wednesday, March 14, 2001, members of senior management of UnitedHealth Group Incorporated (the "Company") will be presenting at the SG Cowen Healthcare Conference. The presentation will include a reaffirmation of the Company's prior publicly disclosed 2001 and 2002 financial expectations, and a discussion of the operations of Ingenix, the Company's knowledge and applied informatics business. The Company anticipates that for the 2001 fiscal year Ingenix's revenues will be approximately $450 million to $475 million and its operating income will be approximately $42 million to $45 million.

    Statements that the Company may issue, including those in the presentation referenced above, which are not strictly historical are "forward-looking" statements under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve known and unknown risks, which may cause actual results and corporate developments to differ materially from expectations, and include, without limitation, the effects of state and federal regulations, the effects of acquisitions and divestitures, and other risks described from time to time in each of UnitedHealth Group's reports filed with the Securities and Exchange Commission, including quarterly reports on Form 10-Q, annual reports on Form 10-K, and current reports on Form 8-K.

2



Signatures

    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 13, 2001

    UNITEDHEALTH GROUP INCORPORATED

 

 

By:

/s/ 
DAVID J. LUBBEN   
David J. Lubben
General Counsel & Secretary


INDEX TO EXHIBITS

Number

  Description
99   Cautionary Statements (incorporated by reference to Exhibit 99 of the Company's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2000)



QuickLinks

Signatures
INDEX TO EXHIBITS