Prospectus Supplement filed under Rule 424(b)(3)
Registration No. 333-84573
Prospectus Supplement
Dated March 17, 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
- ----------------------------------------------------------- ----------------
Conseco Annuity Assurance Company--Multi-Bucket Annuity
Convertible Bond Fund ................................ $2,000,000
Total of Above........................................ $2,000,000
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