$1 MILLION “BIOGEN LEGACY FUND” ESTABLISHED, DONATED TO “FAMILIES OF FREEDOM SCHOLARSHIP FUND™”

Biogen, Inc. (NASDAQ: BGEN) today announced that it has established the “Biogen Legacy Fund” to provide need-based scholarships for children who lost a parent during the tragic events of September 11, 2001. The fund was established with a $1 million corporate contribution from Biogen and will benefit the “Families of Freedom Scholarship Fund™.”

Biogen’s President and CEO, James C. Mullen, announced the donation when he addressed the company’s employees at a meeting today in Cambridge, Massachusetts, where the company is headquartered. The meeting was video broadcast to Biogen employees worldwide. Joining
Mr. Mullen for the announcement was William C. Nelsen, President of the Citizens’ Scholarship Foundation® of America (CSFA), one of the founding organizations of the “Families of Freedom Scholarship Fund™.”

Speaking to more than one thousand of the company’s employees, Mr. Mullen said, “We can’t ease the heartache of the losses or undo the horror of that tragic day. But we can make a contribution on behalf of those who died, by furthering their lives’ greatest cause: their children.
In that spirit, we established the Biogen Legacy Fund, which we will transfer to the ‘Families of Freedom Scholarship Fund™’.”

Mullen explained that CSFA will administer Biogen’s contribution, which will provide at least five $20,000 scholarships each year for the next 18 years – – thus providing educational opportunities even for some of the infant children of those who lost their lives to the terrorist attacks.

Accepting the contribution, CSFA President Nelsen said, “We are grateful to Biogen and so many individuals and companies who have contributed to the Fund. The ‘Families of Freedom Scholarship Fund’ honors the memories of the victims of the attack on America by providing educational assistance for their children and spouses. We at CSFA have pledged that 100 percent of all contributions to the Fund will support undergraduate education at an accredited, U.S.-based college, university, or vocational/technical school, for the victims’ family members, throughout the life of the program. The program will extend to currently enrolled undergraduate students, as well as future students for the life of the Fund.”

Former President Bill Clinton and former Senate Majority Leader Bob Dole are spearheading a scholarship fund campaign for the “Families of Freedom Scholarship Fund™,” which will be coordinated and administered by CSFA, the nation’s largest private sector scholarship and educational support organization, based in St. Peter and Minneapolis, MN. (For more information visit www.familiesoffreedom.org or www.csfa.org)

About Biogen, Inc.
Biogen, Inc., winner of the U.S. National Medal of Technology, is a biopharmaceutical company principally engaged in discovering and developing drugs for human healthcare through genetic engineering. Headquartered in Cambridge, MA, the Company’s revenues are generated from international sales of AVONEX (Interferon beta 1-a) for treatment of relapsing forms of multiple sclerosis, and from the worldwide sales by licensees of a number of products, including alpha interferon and hepatitis B vaccines and diagnostic products. Biogen’s research and development activities are focused on novel products to treat inflammatory and autoimmune diseases, neurological diseases, cancer, fibrosis and congestive heart failure. The Company maintains active clinical research programs in protein therapeutics, small molecules, genomics and gene therapy. For copies of press releases and additional information about the Company, please consult Biogen’s Homepage on the World Wide Web at www.biogen.com.

About Citizens’ Scholarship Foundation of America (CSFA)
CSFA is the nation’s largest private sector scholarship and educational support organization. It carries out its mission of expanding access to educational opportunities and encouraging academic achievement through its Dollars for Scholars, Scholarship Management Services and ScholarShop programs. Headquartered in Minneapolis and St. Peter, MN, CSFA has distributed over $776.2 million to more than 748,000 students through its scholarship and other support programs since its founding in 1958. The Wall Street Journal’s Smart Money Magazine has ranked CSFA as one of the best-run, most efficient nonprofits for the past four years in a row. For more information please visit www.csfa.org and www.familiesoffreedom.org