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4//SEC Filing

Singhal Priya 4

Accession 0001127602-25-015011

CIK 0000875045other

View on SEC.gov Company Profile

Filed

May 19, 8:00 PM ET

Accepted

May 20, 4:05 PM ET

Size

4.7 KB

Accession

0001127602-25-015011

Insider Transaction Report

Form 4

Period: 2025-05-19

BIOGEN INC.BIIB

Head of Development

Transactions

Sale
Common Stock
2025-05-19$126.25/sh−3,806$480,508→ 5,427.143 total

Footnotes (1)

[F1]Includes 166.6667 shares acquired under the Biogen Inc. employee stock purchase plan on 3/31/2025.

Documents

1 file

4
form4.xmlPrimary
PRIMARY DOCUMENT

Issuer

BIOGEN INC.

CIK 0000875045

Entity typeother

Related Parties

1

filerCIK 0001769608

Filing Metadata

Form type: 4
Filed: May 19, 8:00 PM ET
Accepted: May 20, 4:05 PM ET
Size: 4.7 KB

View on SEC.gov