Arkolith/Insider Trading/BIIB/Form 4

Murphy Nicole

Head of Pharm Ops and TechBIOGEN 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
9
6 non-derivative · 3 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 6, 2026Tax withholding(F)1K$201.18$283K20K
Feb 6, 2026Tax withholding(F)914$201.18$184K16K
Feb 6, 2026Option exercise(M)2K—$017K
Feb 6, 2026Tax withholding(F)1K$201.18$205K15K
Feb 6, 2026Option exercise(M)2K—$016K
Feb 6, 2026Option exercise(M)5K—$021K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 6, 2026Option exercise(M)2K—$00
Feb 6, 2026Option exercise(M)2K—$02K
Feb 6, 2026Option exercise(M)5K—$09K

Transaction Codes

F
Shares withheld for taxes
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000875045-26-000022) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML