<PAGE>
Prospectus Supplement Filed pursuant to Rule 424(b)(3)
(to the prospectus dated May 1, 2000) Registration No. 333-31530
AT HOME CORPORATION
6,322,003 Shares of Series A Common Stock
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This prospectus supplement relates to the resale by selling stockholders
named on pages 22 to 25 of the prospectus dated May 1, 2000, to which this
prospectus supplement is attached.
This prospectus supplement should be read in conjunction with the
prospectus dated May 1, 2000 which is to be delivered with this prospectus
supplement. All capitalized terms used but not defined in this prospectus
supplement shall have the meanings given to them in the prospectus.
The information in the table appearing under the heading "Selling
Stockholders - Former Stockholders of Hartford House, Ltd. and Kendara, Inc."
and the related footnotes in the prospectus are superseded in full by the
information appearing in the table below:
<TABLE>
<CAPTION>
Shares Total Shares
Owned that May be
Name Before the Offering Offered
---- ------------------- ----------------
<S> <C> <C>
Fortuna Ventures, L.P (1). 1,553,240 1,553,240
Stephen Schutz and Susan Schutz, Trustees under Trust dated 1,062,665 1,062,665
December 19, 1985 (1)
Jared Schutz (1) 823,093 823,093
Mohr, Davidow Ventures V, L.P. (2) 475,446 475,446
Pavani Diwanji (3) 286,580 286,580
Freeman Murray (4) 233,996 233,996
Bret Comolli (5) 80,791 80,791
IVP Broadband Fund L.P. (6) 51,123 51,123
Robert Polis, as Trustee of the Robert Nathan Polis Revocable 46,472 46,472
Trust dated August 25, 1993 (1)
Regents of the University of California 38,321 38,321
Mohr, Davidow Ventures V, L.P. as nominee for MDV Entrepreneurs' 35,786 35,786
Network Fund II(A), L.P. and MDV Entrepreneurs' Network Fund
II(B), L.P. (2)
Yale University 34,489 34,489
Horsley Bridge Fund V, L.P. 31,934 31,934
Brian Wilson 29,578 29,578
Carnegie Corporation of New York 25,548 25,548
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
Shares Total Shares
Owned that May be
Name Before the Offering Offered
---- ------------------- ----------------
<S> <C> <C>
Endowment Venture Partners III, L.P. 25,548 25,548
Ford Foundation 22,993 22,993
Jean Michel Leon and Christilla Leon 19,719 19,719
Andrew W. Mellon Foundation 19,161 19,161
Leland Stanford Junior University 19,161 19,161
Nassau Capital (Princeton) 19,161 19,161
St. Paul Venture Capital 19,161 19,161
Gleb Budman 14,000 14,000
Howard Hughes Medical Institute 12, 774 12,774
Harvard Private Capital Holdings, Inc. 12, 773 12,773
Mutual Life Insurance Company of New York 12,773 12,773
Northwestern University 12, 773 12,773
Stuart Cheshire 11,831 11,831
The Duke Endowment 10,219 10,219
Ewing Marion Kauffman Foundation 10,219 10,219
Rockefeller Foundation 10,219 10,219
Gothic Corporation (Duke University) 10,219 10, 219
Williams College 10,219 10,219
Jason Knight 9,859 9,859
Heinrich Gantenbein 9,859 9,859
Brinson Partnership Fund Trust-1998 Primary Fund 9,529 9,529
Paul B. Callahan 7,887 7,887
Vlad Bolshakov 7,887 7,887
Arthur Van Hoff 7,697 7,697
David Cheriton 7,697 7,697
EDS Retirement Plan Trust 7,345 7,345
HB-PGGM Fund II, L.P. 6,387 6,387
Knightsbridge Venture Capital IV, L.P. 6,387 6,387
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
Shares Total Shares
Owned that May be
Name Before the Offering Offered
---- ------------------- ----------------
<S> <C> <C>
Santa Clara University 6,387 6,387
Vulcan Ventures Inc. 6,387 6,387
State Universities Retirement System 6,068 6,068
SBC Master Pension Trust 6,068 6,068
Christopher Kelly 5,915 5,915
G & H Partners 5,842 5,842
Scott Eikenberry and Ashley Eikenberry 4,929 4,929
Cory Cooke and Janelle Hargrove 4,929 4,929
Noel Wilson 4,929 4,929
Michael Sheridan 4,046 4,046
Donna Novitsky 3,943 3,943
Knightsbridge Associate Investors IX, L.P. 3,832 3,832
Orange County Employees Retirement System 3,832 3,832
Yale University Staff Retirement Plan 3,832 3,832
Brinson Partnership Fund-1998 Primary Fund, L.P. 3,181 3,181
Duke University Employee Retirement Plan 2,555 2,555
Knightsbridge Netherlands I, L.P. 2,555 2,555
1998 Primary Brinson Partnership Fund Offshore Series Company 2,299 2,299
Ltd.
Wendy Riggs 1,971 1,971
Steve Jessey 1,854 1,854
Martin Foster 1,676 1,676
Carol Dressler 1,603 1,603
Richard P. Yoon 1,577 1,577
Laura Bidinger and Joseph Bidinger 1,577 1,577
Miko Matsumora 1,577 1,577
Geoffrey Y. Yang or Amy S. Yang, Trustees for the Yang Family 1,354 1,354
Trust U/D/T dated 4/11/94
Mary Jane Elmore or William B. Elmore, General Partners for 1,319 1,319
Elmore Family Investments, L.P.
T. Peter Thomas & Jacqueline Sue Stewart, trustees of the 1,255 1,255
Thomas-Stewart Family Trust U/D/T dated 10/16/96
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
Shares Total Shares
Owned that May be
Name Before the Offering Offered
---- ------------------- ----------------
<S> <C> <C>
Munex Stock Holding Company, LLC 1,161 1,161
John M. McQuillan 1,141 1,141
Bob Adler 1,090 1,090
L. James Strand & Laura Strand, Trustees for the L. James & 1,074 1,074
Laura Strand Trust U/A/D 5/30/91
Ruthann Quindlen or David E. Liddle, Trustees for the David E. 954 954
Liddle and Ruthann Quindlen Trust U/D/T dated 7/5/84 as amended
3/16/94
Drakes Landing Associates, L.P. 929 929
Samuel D. Colella or Nancy R. Colella, Trustees for the Colella 906 906
Family Trust U/A/D 9/21/92
Sigma Ventures 883 883
Melissa Criqui 788 788
Aulis & Co. 697 697
Foster & Foster 697 697
Samuel D. Colella or Nancy R. Colella, General Partner for the 672 672
Colella Family Partners
Peter C. Gotcher 592 592
Antaeus Enterprises, Inc. 581 581
BancBoston Investments, Inc. 581 581
St. Paul's School 581 581
Stathis Andris 581 581
Trustees of Phillips Academy 581 581
Reid W. Dennis and Margaret E. Dennis, Trustees, Under the Reid 544 544
and Margaret Dennis Living Trust U/A/D July 7, 1989
Norman A. Fogelsong or Jill M. Fogelsong, Trustees for the 536 536
Norman A. and Jill M. Fogelsong Trust U/T/A dated 3/22/84
The Prospect Hill Foundation 523 523
William P. Tai 501 501
Hardscrabble Associates Partnership 395 395
James Gosling 394 394
Geoff Baehr 394 394
Steve Arnold 394 394
Ashmeet Sidana 394 394
Jeff Whipps 394 394
Neil Leslie Robertson and Rebecca B. Robertson, trustees of the 393 393
Robertson Family Trust U/D/T dated 5/7/98
The American School of Classical Studies at Athens 348 348
The Fullerton Trust 348 348
C. Bradford Jeffries 290 290
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
Shares Total Shares
Owned that May be
Name Before the Offering Offered
---- ------------------- ----------------
<S> <C> <C>
HKL I L.L.C. 279 279
John K. Tillotson 272 272
Mary Jane Elmore, Trustee for the Fogelsong Childrens Trust 268 268
U/T/A dated 8/1/85
Timothy M. Haley and Ethna C. McGourty, Trustees of the 262 262
Haley-McGourty Family Trust U/D/T 9/27/96
R. Thomas Dyal 236 236
Foster Family Limited Partnership 232 232
Donald E. Sveen 232 232
Louisville Presbyterian Theological Seminary 232 232
Patricia A. Zuch 232 232
Richard J. Franke 232 232
Stanford Retirement Annuity Plan 232 232
J. James Strand or Laura Strand, General Partner for JLS Partners 181 181
Jeffries Investment Group 174 174
Robert W. Maier 174 174
The Sperry Fund 174 174
Nancy E. McCroskey, Trustee under the McCroskey Trust Agreement 162 162
dated 3/15/84
Allen Beasley 149 149
Venture Investment Management Company III, L.P. 128 128
Alfred L. McDougal Trust 116 116
Domanada Foundation 116 116
Franke Family Charitable Foundation 116 116
GC & H Investments 116 116
McDougal Family Foundation 116 116
Pilot Trading Trust 116 116
Stephen P. Norman 116 116
Syndics Investment Corporation, Ltd. 116 116
The R.E.K. Profit Sharing Plan 116 116
William M. Kearns, Jr. 116 116
William S. Beinecke 116 116
Marko Balabanovic 49 49
Louise Pegher, Trustee for the Julia Carver 1991 Trust U/T/A 44 44
dated 6/18/91
Louise Pegher, Trustee for the Dana Clevenger 1991 Trust U/T/A 44 44
dated 6/18/91
Louise Pegher, Trustee for the Michelle Colella 1991 Trust U/T/A 44 44
dated 6/18/91
Louise Pegher, Trustee for the Mark Colella 1991 Trust U/T/A 44 44
dated 6/18/91
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
Shares Total Shares
Owned that May be
Name Before the Offering Offered
---- ------------------- ----------------
<S> <C> <C>
Geoffrey Y. Yang, Trustee for the Haley-McGourty Children's 29 29
Trust U/T/A dated April 10, 1998
Mary Jane Elmore, Trustee for the Megan C. Yang Trust U/T/A 23 23
dated 5/13/96
Timothy M. Haley, Trustee of Peter Wu-Sung Yang 1998 Trust U/T/A 23 23
dated 3/19/98
Jane Prusakova 19 19
Michele Colella Sloat and Mark Samuel Colella, Trustees for the 6 6
CGK Trust, U/T/A dated 4/13/98
Total 5,285,600 5,285,600
</TABLE>
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(1) Based on information provided to us as of February 25, 2000.
(2) Prior to our acquisition of Kendara, Mohr, Davidow Ventures V, L.P. and
Mohr, Davidow Ventures V, L.P. as nominee for MDV Entrepreneurs' Network
Fund II(A), L.P. and MDV Entrepreneurs' Network Fund II(B), L.P. together
held approximately 18.4% of the fully-diluted common shares of Kendara, and
Jonathan Feiber, a representative of these partnerships, served as a
director of Kendara.
(3) Pavani Diwanji was Chief Technical Officer and a director of Kendara. Prior
to our acquisition of Kendara, Ms. Diwanji held approximately 23.2% of the
fully-diluted common shares of Kendara.
(4) Freeman Murray was Secretary of Kendara. Prior to our acquisition of
Kendara, Mr. Murray held approximately 19.0% of the fully-diluted common
shares of Kendara.
(5) Bret Comolli was Chief Executive Officer and a director of Kendara. Prior
to our acquisition of Kendara, Mr. Comolli held approximately 10.5% of the
fully-diluted common shares of Kendara.
(6) Prior to our acquisition of Kendara, Institutional Venture Partners VIII,
L.P., IVP Broadband Fund L.P. and IVM Investment Fund VIII, LLC together
held approximately 18.4% of the fully-diluted common shares of Kendara, and
Timothy M. Haley, a representative of these partnerships, served as a
director of Kendara.
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Investing in our Series A common stock involves a high degree of risk.
Please carefully consider the "Risk Factors" beginning on page 4 of the
prospectus.
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
REGULATORS HAVE APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS OR THIS PROSPECTUS SUPPLEMENT. ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
The date of this prospectus supplement is June 1, 2000.