FORM 10-Q FOR 1ST QUARTER 2006

Company

CATERPILLAR INC

Filed

May 3, 2006

Period of Report

March 31, 2006

Accession Number

0000018230-06-000237

A 10-Q is a quarterly financial report filed after each of the first three quarters of a fiscal year. It includes unaudited financial statements and management commentary. Learn more about 10-Q filings →