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$ Value

$0

Shares

1,940

Price

$0

Filed

Feb 10

Insider

Name

ALEXANDER SUSAN H

Title

EVP Chief Legal Officer

CIK

0001263839

Roles

Officer

Transaction Details

Transaction Date

2026-02-06

Code

M

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

1,940

Footnotes

The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 2/8/2023. | The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024. | The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of February 6, 2025.

Filing Info

Accession No.

0000875045-26-000015

Form Type

4

Issuer CIK

0000875045

ALEXANDER SUSAN H's History

Date Ticker Type Value
2026-02-13 BIIB A $0
2026-02-06 BIIB M $0
2026-02-06 BIIB F $213K
2026-02-06 BIIB M $0
2026-02-06 BIIB F $187K
2026-02-06 BIIB M $0
2026-02-06 BIIB F $305K
2026-02-06 BIIB M $0
2026-02-06 BIIB M $0
2026-02-06 BIIB M $0

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2026-02-13
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2026-02-13
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Keeney Adam
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Grogan Jane
Head of Research
2026-02-13
Godbout Sean
Chief Accounting Officer
2026-04-01