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Biogen Inc Insider Trading

Every director, officer and 10% holder of Biogen Inc has to report each trade in its stock within two business days of making it. This is those filings.

BIIB on carbonthat →
Insiders filing
3
7 reported lines
Open-market buys
0
Open-market sales
2
$239.7K
Net
$239.7K
sold more

Purchases and sales

Open-market trades only — the lines where someone chose to buy or sell at the going price.

InsiderActionValue
Lloyd MinorDirector2026-08-04593 shat $200.96
Sale10b5-1 plan
$119.2K
Lloyd MinorDirector2026-08-03593 shat $203.34
Sale10b5-1 plan
$120.6K

Source: SEC Form 4 filings, via EDGAR. A derivative line reports the shares underlying an option rather than stock outstanding, so it is marked and is not comparable with the rest. Value is shares times the reported price, and is blank where the filing priced the transaction at zero — a grant costs its recipient nothing. Insiders sell for reasons that have nothing to do with the company, which is why a sale is not read as a signal on its own.

More on BIIB

Company overviewEverything on BIIB in one place, with the price.SEC filingsWhat BIIB's 8-Ks say happened: results, departures, auditor changes.Who owns itEvery manager reporting a position in BIIB.Funds holding itWhich funds and ETFs hold BIIB, and how big a bet.LobbyingWhat BIIB spends lobbying Congress, and on what.Who lobbies for itThe lobbyists on BIIB's account, and who they worked for.Federal contractsWhat federal agencies pay BIIB.PatentsWhat BIIB is filing at the patent office.

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Related datasets

PeopleCEOs, investors, public officials and market commentators.SEC FilingsAuditor changes, restatements, departures and results, from 8-Ks.Insider BuyingCluster buys, and chief executives buying their own stock.The InsidersOne page per filer: every company they file against.