Key facts
- This page summarizes Ginger Gregory's Form 4 filing for BIOGEN INC. (BIIB).
- 9 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 10 Feb 2026, 16:58.
Ginger Gregory - 06 Feb 2026 Form 4 Insider Report for BIOGEN INC. (BIIB)
- Role
- EVP, Human Resources
- Issuer symbol
- BIIB
- Report date
- 06 Feb 2026
- Net transaction value
- -$520,855
- Form type
- 4
- Accepted by SEC
- 10 Feb 2026, 16:58:07 UTC
- Previous filing
- 12 Feb 2025
- Next filing
- 17 Feb 2026
- SEC filing
- View on sec.gov
- Reporting owner signature
- /s/ Wendell Taylor, attorney in fact for Ginger Gregory
Source evidence
5 source fields
Reporting owner
1 detail
Key filing fact
Ginger Gregory filed Form 4 for BIOGEN INC. (BIIB) on 10 Feb 2026.
Change
- Previous filing in this sequence was filed on 12 Feb 2025.
- Current net transaction value: -$520,855.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
See Original Filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001545716
Primary reporting owner
Gregory Ginger
- Relationship
- EVP, Human Resources
- Address
- BIOGEN INC., 225 BINNEY ST., CAMBRIDGE
- Signature
- /s/ Wendell Taylor, attorney in fact for Ginger Gregory
- Signature date
- 10 Feb 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BIIB
transaction
Common Stock
Options Exercise
- Transaction value
- $0
- Shares
- +1,635
- Change %
- +9.2%
- Price
- $0.000000
- Shares after
- 19,400
- Date
- 06 Feb 2026
- Ownership
- Direct
- Footnotes
- F1
BIIB
transaction
Common Stock
Tax liability
- Transaction value
- $159,133
- Shares
- -791
- Change %
- -4.1%
- Price
- $201.18
- Shares after
- 18,609
- Date
- 06 Feb 2026
- Ownership
- Direct
BIIB
transaction
Common Stock
Options Exercise
- Transaction value
- $0
- Shares
- +1,802
- Change %
- +9.7%
- Price
- $0.000000
- Shares after
- 20,411
- Date
- 06 Feb 2026
- Ownership
- Direct
BIIB
transaction
Common Stock
Tax liability
- Transaction value
- $133,986
- Shares
- -666
- Change %
- -3.3%
- Price
- $201.18
- Shares after
- 19,745
- Date
- 06 Feb 2026
- Ownership
- Direct
BIIB
transaction
Common Stock
Options Exercise
- Transaction value
- $0
- Shares
- +3,746
- Change %
- +19%
- Price
- $0.000000
- Shares after
- 23,491
- Date
- 06 Feb 2026
- Ownership
- Direct
BIIB
transaction
Common Stock
Tax liability
- Transaction value
- $227,736
- Shares
- -1,132
- Change %
- -4.8%
- Price
- $201.18
- Shares after
- 22,359
- Date
- 06 Feb 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BIIB
transaction
Derivative
Restricted Stock Unit
Options Exercise
- Transaction value
- $0
- Shares
- -1,635
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 06 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,635
- Exercise price
- $0.000000
- Footnotes
- F2
BIIB
transaction
Derivative
Restricted Stock Unit
Options Exercise
- Transaction value
- $0
- Shares
- -1,802
- Change %
- -50%
- Price
- $0.000000
- Shares after
- 1,802
- Date
- 06 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,802
- Exercise price
- $0.000000
- Footnotes
- F3
BIIB
transaction
Derivative
Restricted Stock Unit
Options Exercise
- Transaction value
- $0
- Shares
- -3,746
- Change %
- -33%
- Price
- $0.000000
- Shares after
- 7,494
- Date
- 06 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 3,746
- Exercise price
- $0.000000
- Footnotes
- F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 footnotes
Footnote F1
Includes 166.6667 shares acquired under the Biogen Inc. employee stock purchase plan on 3/31/2025.
Footnote F2
The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 02/08/2023.
Footnote F3
The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.
Footnote F4
The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of February 6, 2025.