CIGNA Corporation 424(b)(4)
Filed
pursuant to Rule 424(b)(4)
Registration
Statement No. 333-136704
(Supplementing
the Prospectus Supplements, each
dated
March 12, 2007, filed with the Commission
on
March 12, 2007 and March 14, 2007 pursuant to
Rules
424(b)(3) and Rule 424(b)(5), respectively)
Explanatory
Note: The purpose of this prospectus supplement is to correct the name of an
underwriter in the Underwriter Table appearing on page S-15 of the prospectus
supplement filed by CIGNA Corporation on March 14, 2007 pursuant to Rule
424(b)(5) under the Securities Act of 1933, as amended.
CIGNA
Corporation
The
name
“Lazard Capital Markets LLC” is hereby inserted in place of the name “Mitsubishi
UFJ Securities International plc” on the Underwriter Table appearing on p. S-15
of the prospectus supplement filed by CIGNA Corporation on March 14, 2007
pursuant to Rule 424(b)(5) under the Securities Act of 1933, as amended.