[{"filer":"Kevin Hern","role":"Representative (OK01)","source":"house","ticker":"BIIB","asset":"Biogen Inc. - Common Stock (BIIB)","industry":"Biological Products, (No Diagnostic Substances)","action":"Sale","side":"sale","amount":"$1,001 - $15,000","owner":"self","transaction_date":"08/18/2026","filed_date":"9/1/2026","comment":"","filer_committees":[{"committee":"House Committee on Ways and Means","subcommittees":["Tax","Health"]}],"url":"https://disclosures-clerk.house.gov/public_disc/ptr-pdfs/2026/20035326.pdf"}]