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Prospectus Supplement filed under Rule 424(b)(3)
Registration No. 333-84573
Prospectus Supplement
Dated April 14, 2000
The Prospectus dated August 13, 1999 relating to the offer for
resale of up to $361,000,000 aggregate principal amount of The Interpublic Group
of Companies, Inc.'s 1.87% Convertible Subordinated Notes due 2006, and such
shares of common stock as may be issued upon conversion of the notes, is hereby
supplemented to include the following information in the "Selling
Securityholders" table in the Prospectus Supplement dated August 13, 1999:
Principal Amount
of Registered
Selling Securityholders Notes
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William Fertig............................................. $300,000
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Total of Above........................................ $300,000
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The "Selling Securityholders" table in the Prospectus, as supplemented, is
amended so that the principal amount of registered notes held by Vanguard
Convertible Securities Fund, Inc. is reduced from $1,585,000 to $0.
The "Selling Securityholders" table in the Prospectus, as supplemented, is
amended so that the principal amount of registered notes held by Allstate Life
Insurance Company(1) is reduced from $3,750,000 to $2,750,000.
The "Selling Securityholders" table in the Prospectus, as supplemented, is
amended so that the principal amount of registered notes held by Allstate
Insurance Company(2) is reduced from $5,250,000 to $4,250,000.
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(1) Allstate Life Insurance Company is the owner of 7,100 shares of
Interpublic's common stock.
(2) Allstate Insurance Company is the owner of 91,600 shares of Interpublic's
common stock.