1 For Filing Pursuant to Rule 424(b)(3) Registration Statement No. 33-60827 PRICING SUPPLEMENT NO. 13 DATED AUGUST 10, 1999 (To Prospectus dated February 20, 1996 and Prospectus Supplement dated June 11, 1996) AMERICAN INTERNATIONAL GROUP, INC. MEDIUM-TERM NOTES, SERIES E INTEREST RATE RANGE OF MATURITIES PER ANNUM ------------------- ------------- 2 years 6.34% The Series E Notes to which this Pricing Supplement relates will bear interest at the rate specified above and will be Fixed Rate Notes. Morgan Stanley & Co. Incorporated has purchased the Notes as principal in this transaction, at a discount of 0.133%, for resale to one or more investors at varying prices related to prevailing market conditions at the time or times of resale as determined by Morgan Stanley & Co. Incorporated.