Arkolith/Insider Trading/BIIB/Form 4

Keeney Adam

Head of Corporate DevelopmentBIOGEN INC. (BIIB) · full profile →Form 4 · filed Feb 10, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
6
4 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 6, 2026Tax withholding(F)994$201.18$200K6K
Feb 6, 2026Option exercise(M)3K—$07K
Feb 6, 2026Option exercise(M)2K—$04K
Feb 6, 2026Tax withholding(F)589$201.18$118K4K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 6, 2026Option exercise(M)2K—$02K
Feb 6, 2026Option exercise(M)3K—$07K

Transaction Codes

F
Shares withheld for taxes
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000875045-26-000020) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML