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Biogen

Biogen (NASDAQ: BIIB) insider transactions

In the twelve months to 10 November 2026, executives and directors of Biogen reported 4 open-market sales of 4,594 shares ($905,414) and 1 open-market purchase of 3 shares ($585), by 3 people, according to the Form 4 filings they submitted to the SEC.

Latest transactions

The 20 most recent transactions in Biogen shares reported on Form 4
DateInsiderRoleTransactionSharesPriceHeld afterFiling
30 October 2026Grogan JaneHead of ResearchOption exercise+695—4,753Form 4
30 October 2026Grogan JaneHead of ResearchShares withheld for tax−345$253.624,408Form 4
2 October 2026Godbout SeanChief Accounting OfficerOption exercise+27—1,467Form 4
2 October 2026Godbout SeanChief Accounting OfficerShares withheld for tax−8$219.881,459Form 4
4 August 2026Minor LloydDirectorOpen-market sale, 10b5-1 plan−593$200.962,689Form 4
3 August 2026Minor LloydDirectorOpen-market sale, 10b5-1 plan−593$203.343,282Form 4
9 June 2026Freire Maria CDirectorGrant or award+2,005—8,820Form 4
9 June 2026Minor LloydDirectorGrant or award+1,505—3,875Form 4
9 June 2026Pangalos Menelas NDirectorOption exercise+2,370—2,370Form 4
9 June 2026Pangalos Menelas NDirectorGrant or award+1,505—3,875Form 4
9 June 2026Patolawala Monish DDirectorGrant or award+1,505—5,215Form 4
9 June 2026Langer SusanDirectorGrant or award+1,505—6,634Form 4
9 June 2026Mantas Jesus BDirectorGrant or award+1,505—11,263Form 4
9 June 2026Rowinsky Eric KDirectorGrant or award+1,505—25,844Form 4
9 June 2026Sherwin Stephen ADirectorGrant or award+1,505—15,193Form 4
9 June 2026Hawkins William ADirectorGrant or award+1,505—10,365Form 4
1 May 2026Keeney AdamHead of Corporate DevelopmentOption exercise+939—6,820Form 4
1 May 2026Keeney AdamHead of Corporate DevelopmentShares withheld for tax−455$187.066,365Form 4
1 April 2026Godbout SeanChief Accounting OfficerOption exercise+181—1,396Form 4
1 April 2026Godbout SeanChief Accounting OfficerShares withheld for tax−54$183.781,342Form 4

Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.

How to read the table

Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.

Where each row comes from

From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Biogen page; the method, in data sources.

Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.