Dividend Notification

Marsh & McLennan Co Inc
18 May 2000

QUARTERLY DIVIDEND
SECURITY TITLE
*Com Stk
MNEMONIC CODE           *MSHM
SEDOL CODE              *2-567-741
DIVIDEND AMOUNT         *$0.50
PROVISIONAL EX DATE     *07-07-00
RECORD DATE             *10-07-00
PAYMENT DATE            *15-08-00
NOTES *