Representative Filers

If, between June 8, 2021 and July 12, 2021, inclusive, you purchased or otherwise acquired Biogen, Inc. common stock for the beneficial interest of a person or entity other than yourself, please read the Broker/Nominee letter below with instructions on how to notify your clients:
DOCUMENT DESCRIPTION SIZE DOWNLOAD
Biogen Securities Litigation Broker Letter 150 KB PDF ↓
If you are filing electronic claims:

Representatives with authority to file on behalf of (a) accounts of multiple Class Members and/or (b) institutional accounts with large numbers of transactions (“Representative Filers”) must submit information regarding their transactions in an electronic spreadsheet format. The instructions and spreadsheet template are below:
DOCUMENT DESCRIPTION SIZE DOWNLOAD
Biogen Securities Electronic Filing Instructions & Descriptions 109 KB PDF ↓
Biogen Electronic Filing Template Common Stock 9 KB XLSX ↓