# Biogen Inc.: Form 4, filed Sep 28, 2023

- Company: [Biogen Inc.](/companies/biib.md) (CIK 875045)
- Form: 4
- Filed: 2023-09-28
- Accepted by EDGAR: Sep 28, 2023, 17:30 ET
- Period: 2023-09-26
- Accession: 0000899243-23-019611
- Inline XBRL: no
- Main document: https://www.sec.gov/Archives/edgar/data/875045/000089924323019611/xslF345X05/doc4.xml
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/875045/000089924323019611/

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/875045/000089924323019611/xslF345X05/doc4.xml

Filed Sep 28, 2023.
Source: SEC EDGAR, the filing index for accession 0000899243-23-019611. Last ingested by Listed: Nov 2, 2026, 20:22 ET. No prices; not investment advice.