Key facts
- This page summarizes Caroline Dorsa's Form 4 filing for BIOGEN INC. (BIIB).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 18 Jun 2025, 16:34.
Caroline Dorsa - 17 Jun 2025 Form 4 Insider Report for BIOGEN INC. (BIIB)
- Reporting relationship
- Director
- Issuer ticker
- BIIB
- Reported as of
- 17 Jun 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 18 Jun 2025, 16:34:49 UTC
- Prior SEC filing
- 23 May 2025
- Next SEC filing
- 11 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Wendell Taylor, Attorney in Fact for Caroline D. Dorsa
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Caroline Dorsa filed Form 4 for BIOGEN INC. (BIIB) on 18 Jun 2025.
Change
- Previous filing in this sequence was filed on 23 May 2025.
- Current net transaction value: $0.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001181174
Primary reporting owner
DORSA CAROLINE
- Relationship
- Director
- Address
- BIOGEN INC., 225 BINNEY STREET, CAMBRIDGE
- Signature
- /s/ Wendell Taylor, Attorney in Fact for Caroline D. Dorsa
- Signature date
- 18 Jun 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BIIB
transaction
Common Stock
Award
- Transaction value
- $0
- Shares
- +3,160
- Change %
- +11%
- Price
- $0.000000
- Shares after
- 31,002
- Date
- 17 Jun 2025
- Ownership
- Direct
* marks a reported price that did not pass the local price check.