EXHIBIT 32.1
CERTIFICATION
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
Pursuant to section 906 of the Sarbanes-Oxley Act of 2002
(subsections (a) and (b) of section 1350,
chapter 63 of title 18, United States Code), each of
the undersigned officers of Biogen Idec Inc., a Delaware
corporation (the “Company”), does hereby certify, to
such officer’s knowledge, that:
The Quarterly Report on
Form 10-Q
for the quarter ended September 30, 2008 (the
“Form 10-Q”)
of the Company fully complies with the requirements of
Section 13(a) or 15(d) of the Securities Exchange Act of
1934, and the information contained in the
Form 10-Q
fairly presents, in all material respects, the financial
condition and results of operations of the Company.
|
/s/ James
C. Mullen
|
James C. Mullen
Chief Executive Officer and President
[principal executive officer]
Dated: October 21, 2008
|
/s/ Paul
J. Clancy
|
Paul J. Clancy
Executive Vice President and Chief Financial Officer
[principal financial officer]
Dated: October 21, 2008
A signed original of this written statement required by
Section 906 has been provided to the Company and will be
retained by the Company and furnished to the Securities and
Exchange Commission or its staff upon request.