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BIIB insider trading

BIOGEN INC. — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
2
Bought · 24 mo
$152k
Buys · last 90 days
0 · $0
Most recent buy
2026-02-17

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-02-17Murphy Nicole
Head of Pharm Ops and Tech
Bought3$195.04$585
2025-05-05DORSA CAROLINE
Director
Bought1,235$122.72$152k
2025-03-10SHERWIN STEPHEN A
Director
Sold8,760$150.02$1.3M

Most active insider buyers

InsiderRoleBuysTotal bought
DORSA CAROLINEDirector1$152k
Murphy NicoleHead of Pharm Ops and Tech1$585

See BIIB on the chart

Every insider buy and sell for BIIB plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.