<PAGE>
FILED PURSUANT TO RULE 424(B)(3) AND RULE 424(C)
REGISTRATION STATEMENT NO. 333-58031
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED JUNE 29, 1998)
-----------------------
This Prospectus Supplement supplements the Prospectus dated June 29, 1998
(the "Prospectus") relating to the resale of up to 175,068 shares of Common
Stock, par value $.01 per share (the "Common Stock"), of Investors Financial
Services Corp. (the "Company") by certain stockholders of the Company, which
Prospectus was filed as part of the Company's Registration Statement on Form S-3
No. 333-58031.
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NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS SUPPLEMENT OR THE
PROSPECTUS TO WHICH IT RELATES IN CONNECTION WITH THE OFFERING MADE PURSUANT TO
THE PROSPECTUS (AS SUPPLEMENTED HEREBY), AND IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE
COMPANY OR BY ANY OTHER PERSON. NEITHER THE DELIVERY OF THIS PROSPECTUS
SUPPLEMENT AND THE PROSPECTUS TO WHICH IT RELATES NOR ANY SALE OF SHARES OF
COMMON STOCK COVERED HEREBY SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY
IMPLICATION THAT INFORMATION IN THIS PROSPECTUS SUPPLEMENT IS CORRECT AS OF ANY
TIME SUBSEQUENT TO THE DATE HEREOF OR THAT INFORMATION IN THE PROSPECTUS IS
CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE THEREOF (JUNE 29, 1998). THIS
PROSPECTUS SUPPLEMENT AND THE PROSPECTUS TO WHICH IT RELATES DO NOT CONSTITUTE
AN OFFER TO OR SOLICITATION OF ANY PERSON IN ANY JURISDICTION IN WHICH SUCH
OFFER OR SOLICITATION MAY NOT BE LAWFULLY MADE.
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The date of this Prospectus Supplement is April 29, 1999.
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In connection with that certain two-for-one stock split in the form of a
100% stock dividend (the "Share Dividend") of the Company that was paid on March
17, 1999 to the Company's stockholders of record on March 1, 1999, this
Prospectus Supplement updates certain information contained in the "Selling
Stockholders" section of the Prospectus. Except for information in this
Prospectus Supplement, reference should be made to the accompanying Prospectus
dated June 29, 1998 and the information incorporated therein by reference.
The following table amends the information set forth in the table in the
"Selling Stockholders" section of the Prospectus as follows:
<TABLE>
<CAPTION>
Number and Percentage Number of Shares
of Shares Beneficially Offered Pursuant
Selling Stockholders Owned Prior to Offering(1) to this Prospectus
- -------------------- -------------------------- ------------------
Number Percent(2)
------ ----------
<S> <C> <C> <C>
Alan M. Trager 339,837 2.2% 312,146
Carla E. Dearing 41,361 * 37,990
</TABLE>
* Less than 1%.
(1) Except as otherwise indicated, the persons named in the above table have
sole voting and investment power with respect to all shares shown as
beneficially owned by them. Beneficial ownership is determined in
accordance with the rules of the Securities and Exchange Commission, and
includes voting and investment power with respect to shares.
(2) Based upon 13,383,098 shares of Common Stock outstanding as of June 22,
1998, such number being the actual number of shares outstanding as of such
date multiplied by two to reflect the Share Dividend of the Company.
S-2
