<PAGE>
Filed Pursuant to Rule 424(b)(3) and (c)
File Number 333-45319
PROSPECTUS SUPPLEMENT DATED MARCH 19, 1998
to
Prospectus Dated February 9, 1998
UNITED HEALTHCARE CORPORATION
----------
2,351,882 SHARES
OF
COMMON STOCK
($.01 PAR VALUE)
----------
This Prospectus Supplement supplements the Prospectus dated
February 9,1998 (the "Prospectus") of United HealthCare Corporation, a Minnesota
corporation (the "Company"), relating to an aggregate of 2,351,882 shares of
Common Stock, par value $.01 per share (the "Common Stock"), of the Company that
may be sold from time to time by certain shareholders of the Company or by
pledgees, donees, transferees or other successors in interest (the "Selling
Shareholders"). This Prospectus Supplement should be read in conjunction with,
and is qualified by reference to, the Prospectus except to the extent that the
information herein contained supersedes the information contained in the
Prospectus. Capitalized terms used in this Prospectus Supplement and not
otherwise defined herein have the meanings specified in the Prospectus.
SELLING SHAREHOLDERS
Footnotes 2 - 10 below (the "Footnotes") set forth persons or entities
of the Company who were not specifically identified in the Prospectus as Selling
Shareholders, but who may receive shares of Common Stock through distributions
from partnerships listed in the Prospectus as Selling Shareholders. The table of
Selling Shareholders in the Prospectus is hereby amended to include the persons
or entities identified in the Footnotes as Selling Shareholders:
<TABLE>
<CAPTION>
Number Maximum Number
of Shares Number of Shares
Beneficially of Shares to be Beneficially
Owned Prior Sold Pursuant to Owned After
Name to Offering this Prospectus Offering(1)
- ---------------------------------------- ------------- ---------------- ------------
<S> <C> <C> <C>
Sequoia Capital Growth Fund(2) 386,214 386,214 0
Galen Partners II, L.P.(3) 364,871 364,871 0
Sequoia Capital V(4) 191,052 191,052 0
Galen Partners International II, L.P.(5) 116,143 116,143 0
Parvest U.S. Partners II C.V.(6) 116,069 116,069 0
Paribas U.S. Partners V.O.F.(7) 73,954 73,954 0
Sequoia XXIII(8) 8,215 8,215 0
Sequoia Technology Partners V(9) 6,160 6,160 0
Galen Employee Fund, L.P.(10) 1,307 1,307 0
</TABLE>
- -----------------------------
(footnotes on next page)
1
<PAGE>
(1) Assumes the sale of all Shares covered by this Prospectus.
(2) Subsequent to the date of this Prospectus Supplement, the shares held
by Sequoia Capital Growth Fund may be distributed to: GYROS AG, ZUG; BP
America; Trustees of Dartmouth College; Northern Trust Bank ; Donald T.
Valentine, Trustee, Donald T. Valentine Trust UA APR2967; Pierre R.
Lamond & Christine E. Lamond, P.R. Lamond & C.E. Lamond Trust dated
11/22/85; Gordon W. Russell, Trustee of the Russell 1988 Revocable
Trust, dated 11/17/88; Thomas F Stephenson, Trustee, Thomas F.
Stephenson Family Trust UDT 7/6/94; Michael Moritz & Harriet Heyman
Trustees, The Maximus Trust dtd 3/19/96; Douglas M. Leone; Mark A.
Stevens; Standford University; PITT & Co.; and Leeway & Co.
(3) Subsequent to the date of this Prospectus Supplement, the shares held
by Galen Partners II, L.P. may be distributed to: Leeway & Co.;
Springbook, G.P.; Alham Inc.; Bankers Trust Company, as Trustee of the
GTE Service Corporation Plan for Employee Pensions; The Northern Trust
Company as Trustee of the Crown Cork & Seal Company, Inc. Master
Retirement Trust; The Gavin Herbert, Jr. Successor Trust; Jane C.
Pfeiffer; Henry Wendt; The Sandridge Corporation; The Dreyfus Fund
Incorporated; Mellon Bank as Trustee for the Engelhard Corporation
Group Pension Trust; Cedar Equities, L.L.C.; James Balog; The Claude
Worthington Benedum Foundation; William R. Grant; Rebound (Delaware)
Two, LLC; Bruce F. Wesson; and L.
John Wilkerson.
(4) Subsequent to the date of this Prospectus Supplement, the shares held
by Sequoia Capital V may be distributed to: BGL International B.V.;
Hancock Venture Partners IV-Partnership Fund L.P.; Harvard Management
Company; Henry J. Kaiser Family Foundation; PITT & Co.; James Irvine
Foundation; Leeway & Co.; M.J. Murdock Charitable Trust; Occidental
College; PosTel Investment Management Limited; Regents of the
University of Minnesota; The Board of Trustees of the Leland Stanford
Jr. University; The Charles F. Kettering Foundation; The Common Fund;
The Ford Foundation; The Regents of the University of California;
Vertex Investment Pte., Ltd.; Yale University ; Donald T. Valentine,
Trustee, Donald T. Valentine Trust UA APR2967; Pierre R. Lamond &
Christine E. Lamond, P.R. Lamond & C.E. Lamond Trust dated 11/22/85;
Gordon W. Russell, Trustee of the Russell 1988 Revocable Trust, dated
11/17/88; Thomas F Stephenson, Trustee, Thomas F. Stephenson Family
Trust UDT 7/6/94; Michael Moritz & Harriet Heyman Trustees, The Maximus
Trust dtd 3/19/96; Douglas M. Leone; and Mark A. Stevens.
(5) Subsequent to the date of this Prospectus Supplement, the shares held
by Galen Partners International II, L.P. may be distributed to:
Overseas Lending Corporation; Sofinov, Societe Financiere d'Innovation,
Inc.; Kleinwort Benson Ltd.; Merifin Capital, N.V.; William R. Grant;
Rebound (Delaware) Two, LLC; Bruce F. Wesson; and L. John Wilkerson.
(6) Subsequent to the date of this Prospectus Supplement, the shares held
by Parvest U.S. Partners II C.V. may be distributed to: IBM Retirement
Plan Trust; NYNEX Master Pension Trust; Paribas North America, Inc.;
GTE Service Corp. Plan; Landmark Equity Partners V, L.P.; Illinois
Power Company Retirement Income Trust; Nippon Investment & Finance Co.,
Ltd.; Kubota Corporation; Partech Venture Managers III N.V.; Assur
Investissements; Mr. Said Coubeche; Banque du Luxembourg; Werilux
S.A.H.; Pari II Partners; 3M Company; Minnesota Mutual Life Insurance
Company; Scottsdale Holdings Limited; Basetext Limited; Roland A. Van
der Meer; Vendome Capital; Vincent R. Worms; Donald R. Dixon; Scott
Matson; and Madeline U.S. Partners II C.V.
(7) Subsequent to the date of this Prospectus Supplement, the shares held
by Paribas U.S. Partners V.O.F. may be distributed to: Paribas
International Ventures C.V.; Paribas Venture Managers N.V.; COBEPA
Technology; Charmtex Limited; Basetext Limited; Scottsdale Holding
Limited; Thomas McKinley; Vincent Worms; Philippe Claude; and Donald
Dixon.
2
<PAGE>
(8) Subsequent to the date of this Prospectus Supplement, the shares held
by Sequoia XXIII may be distributed to: William W. Bagnard; David C.
Barclay; Richard C. Barker, Trustee; Alan N. Berro; Fred R. Betts;
Joseph T. Blair; Daniel C. Brown, Trustee; Jeffrey P. Brown; Elizabeth
A. Burns; Victor C. Cassato; Christopher J. Cassin; Randy Cepuch; Kevin
G. Clifford; Don R. Conlan; Roberta A. Conroy; Douglas A. Critchell;
Joyce E. Daniels, Trustee; Michael G. Dill; Peter J. Doran; Michael J.
Downer; James K. Dunton; Robert W. Durbin; Paul H. Fieberg, Trustee;
Harold C. Fischer; Deborah A. Fischler; Mark P. Freeman; Jr.; Robert C.
Green; David E. Harper; Joseph R. Higdon; E. Graham Holloway; Frederick
M. Hughes, Jr.; William H. Hurt, Trustee; Michael J. Johnston; Steven
N. Kearsley; Jacque Kniffin; Victor D. Kohn; Victor J. Kriss; CGTC,
Trustee-Peter H. Langer Family Trust fbo David S. Langer; CGTC,
Trustee-Peter H. Langer Family Trust fbo Kathryn D. Caruthers; Karin L.
Larson; Arthur Levine; Steven M. Markel, D. James Martin, Trustee; Lee
McClennahan; Terry McNabb; David R. Murray; Stephen S. Nelson; William
C. Newton, General Partner-WCN/GAN Partners, Ltd.; Donald D. O'Neal;
Sharyl Overhoiser; Dina Perry; Frederic Phillips; Steven Reitman;
Merlin E. Robertson; Robert E.G. Ronus; George S. Ross; Julie D. Roth;
James F. Rothenberg, Trustee; Dean B. Rydquist; Richard Samson;
Theodore R. Samuels, Trustee; John H. Seiter; Clayton M. Sheedy; David
W. Short; N. Parker Simes; William P. Simon, Jr.; John H. Smet; Rodney
G. Smith; Thomas C. Sorensen, Trustee of The Thomas C. Sorensen
Irrevocable Children's Trust; Daniel S. Spradling; Rosemary Spradling;
Rudolf M. Staehelin; Eugene P. Stein; Walter P. Stern; Philip A. Swan;
Thomas E. Terry; Brad A. Todd; Hoyt J. Turner; Kathryn N. Urban,
Trustee of the Urban Non-Exempt Marital Trust; Kathryn N. Urban,
Trustee of the Urban Survivor's Trust; Edith H.L. VanHuss; Catherine M.
Ward, Trustee; Edus H. Warren, Jr.; Mary Jane Weaver; Gregory W. Wendt;
N. Dexter Williams, Jr; Lynda A. Willner; Robert L. Winston, Trustee;
and James R. Zukor, Trustee.
(9) Subsequent to the date of this Prospectus Supplement, the shares held
by Sequoia Technology Partners V may be distributed to: Robert K.
Anderson; Richard C. Barker, Trustee for the Barker Living Trust Dated
9/5/90; Michael Boich; Robert Cohn; Wilfred J. Corrigan, Trustee,
Corrigan Family Trust UA 6/12/84; Alexander V. d'Arbeloff; James V.
Diller; Herbert M. Dwight, Jr., Trustee, That Certain Trust dtd
6/12/74; John Goodrich; Paul R. Kreutz; Sandra Kurtzig, Trustee of
Sandra L. Kurtzig Trust U/A 8/8/93; P.R. Lamond & C.E. Lamond Trust
Dated 11/22/85; United Missouri Bank of Kansas City, TTE Brobeck,
Phleger & Harrison Retirement Trust dtd 10/1/85 FBO Edward M. Leonard;
Lussier Family Trust, Richard and Suzanne Delone Lussier Trustees, Eff:
April 1, 1998; Samuel H. Maslak; Donald K. McKinney; Dick Moley; The
Maximus Trust dtd 3/18/96; Kapil Nunda; Capital Management Services,
Inc.; Robert J. Paluck; Reyes Partnership IV; Thurman J. Rodgers; Mario
M. Rosati; Gordon W. Russell, Trustee of the Russell 1988 Revocable
Trust, dated 11/17/88; R. Michael Shanahan, Trustee, The Shanahan
Trust, dtd 3/22/91; Catherine O. Shanahan; Roger J. Sippl; Roger V.
Smith; Roger Smullen; Art Stabenow; Thomas F. Stephenson Family Trust,
UDT 7/6/94; Gary Stroy; Stan Tenold; Larry W. Sonini; Jim Terranova;
Donald T. Valentine Trust, TK UA Apr 29 67; Steve Wallach; WS
Investment Company; and D.M. Laurice & M.M. Rosati, Trustees WSGR PS
Plan UDT 2/1/89 FBO J.Casey McGlynn.
(10) Subsequent to the date of this Prospectus Supplement, the shares held
by Galen Employee Fund, L.P. may be distributed to: Bruce F. Wesson;
Srini Conjeevaram; David W. Jahns; Joan MacKenzie; Elizabeth B.
O'Leary; and J. Dukes Wooters, Jr.
3
