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Biogen Inc (BIIB)

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Insider transactions

A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.

Transaction date
Executive
Executive Title
Security Type
Acquisition / Disposal
Shares
Share price
Sep 1, 2026PARINI, MICHAELChief Legal OfficerRestricted Stock UnitAcquisition7,4050
Aug 4, 2026MINOR, LLOYDDirectorCommon StockDisposal593200.96
Aug 3, 2026MINOR, LLOYDDirectorCommon StockDisposal593203.34
Jun 9, 2026PANGALOS, MENELAS NDirectorRestricted Stock UnitDisposal2,3700
Jun 9, 2026FREIRE, MARIA CDirectorCommon StockAcquisition2,0050
Jun 9, 2026MANTAS, JESUS BDirectorCommon StockAcquisition1,5050
Jun 9, 2026HAWKINS, WILLIAM ADirectorCommon StockAcquisition1,5050
Jun 9, 2026SHERWIN, STEPHEN ADirectorCommon StockAcquisition1,5050
Jun 9, 2026LANGER, SUSANDirectorCommon StockAcquisition1,5050
Jun 9, 2026PANGALOS, MENELAS NDirectorCommon StockAcquisition1,5050
Jun 9, 2026PANGALOS, MENELAS NDirectorCommon StockAcquisition2,3700
Jun 9, 2026PATOLAWALA, MONISH DDirectorCommon StockAcquisition1,5050
Jun 9, 2026ROWINSKY, ERIC KDirectorCommon StockAcquisition1,5050
Jun 9, 2026MINOR, LLOYDDirectorCommon StockAcquisition1,5050
May 1, 2026KEENEY, ADAMHead of Corporate DevelopmentRestricted Stock UnitDisposal9390
May 1, 2026KEENEY, ADAMHead of Corporate DevelopmentCommon StockAcquisition9390
May 1, 2026KEENEY, ADAMHead of Corporate DevelopmentCommon StockDisposal455187.06
Apr 1, 2026GODBOUT, SEANChief Accounting OfficerRestricted Stock UnitDisposal1810
Apr 1, 2026GODBOUT, SEANChief Accounting OfficerCommon StockDisposal54183.78
Apr 1, 2026GODBOUT, SEANChief Accounting OfficerCommon StockAcquisition1810
Feb 13, 2026GODBOUT, SEANChief Accounting OfficerRestricted Stock UnitAcquisition1,8000
Feb 13, 2026GROGAN, JANEHead of ResearchRestricted Stock UnitAcquisition8,4500
Feb 13, 2026MURPHY, NICOLEHead of Pharm Ops and TechRestricted Stock UnitAcquisition10,5600
Feb 13, 2026SINGHAL, PRIYAHead of DevelopmentRestricted Stock UnitAcquisition10,5600
Feb 13, 2026IZZAR, RACHIDHead of Global Product Strat.Restricted Stock UnitAcquisition7,3900
Feb 13, 2026KRAMER, ROBINChief Financial OfficerRestricted Stock UnitAcquisition8,4500
Feb 13, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEORestricted Stock UnitAcquisition38,0150
Feb 13, 2026KEENEY, ADAMHead of Corporate DevelopmentRestricted Stock UnitAcquisition8,0250
Feb 13, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerRestricted Stock UnitAcquisition8,4500
Feb 13, 2026GREGORY, GINGEREVP, Human ResourcesRestricted Stock UnitAcquisition8,0250
Feb 12, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockAcquisition3195.035
Feb 9, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockDisposal2,660199.83
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesCommon StockDisposal791201.18
Feb 6, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockDisposal1,412201.18
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesRestricted Stock UnitDisposal1,6350
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerRestricted Stock UnitDisposal1,9400
Feb 6, 2026KEENEY, ADAMHead of Corporate DevelopmentCommon StockAcquisition1,8020
Feb 6, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEOCommon StockDisposal6,624201.18
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerCommon StockAcquisition4,9160
Feb 6, 2026KEENEY, ADAMHead of Corporate DevelopmentCommon StockDisposal589201.18
Feb 6, 2026SINGHAL, PRIYAHead of DevelopmentRestricted Stock UnitDisposal4,6830
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Restricted Stock UnitDisposal3,0430
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockAcquisition4,6830
Feb 6, 2026KRAMER, ROBINChief Financial OfficerCommon StockDisposal1,063201.18
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockAcquisition2,1020
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Restricted Stock UnitDisposal1,8020
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerCommon StockAcquisition5170
Feb 6, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEORestricted Stock UnitDisposal9,0080
Feb 6, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockAcquisition2,2170
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerCommon StockDisposal931201.18
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Common StockAcquisition1,8020
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Common StockDisposal805201.18
Feb 6, 2026KRAMER, ROBINChief Financial OfficerCommon StockDisposal207201.18
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockAcquisition1,9400
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockDisposal914201.18
Feb 6, 2026KRAMER, ROBINChief Financial OfficerRestricted Stock UnitDisposal7890
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Common StockAcquisition2,0440
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Restricted Stock UnitDisposal2,0440
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerCommon StockAcquisition3050
Feb 6, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEORestricted Stock UnitDisposal15,4530
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechRestricted Stock UnitDisposal4,6830
Feb 6, 2026KRAMER, ROBINChief Financial OfficerCommon StockAcquisition7030
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerCommon StockAcquisition2570
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesRestricted Stock UnitDisposal1,8020
Feb 6, 2026KEENEY, ADAMHead of Corporate DevelopmentRestricted Stock UnitDisposal1,8020
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Common StockAcquisition3,0430
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerRestricted Stock UnitDisposal4,9160
Feb 6, 2026KEENEY, ADAMHead of Corporate DevelopmentCommon StockAcquisition3,2780
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechRestricted Stock UnitDisposal2,1020
Feb 6, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockAcquisition4,6830
Feb 6, 2026GROGAN, JANEHead of ResearchCommon StockDisposal584201.18
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesCommon StockAcquisition1,8020
Feb 6, 2026KRAMER, ROBINChief Financial OfficerRestricted Stock UnitDisposal7030
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Common StockDisposal458201.18
Feb 6, 2026KRAMER, ROBINChief Financial OfficerCommon StockAcquisition7890
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockDisposal1,017201.18
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesCommon StockDisposal1,132201.18
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesCommon StockDisposal666201.18
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerRestricted Stock UnitDisposal5170
Feb 6, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEOCommon StockAcquisition15,4530
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesRestricted Stock UnitDisposal3,7460
Feb 6, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEOCommon StockDisposal4,356201.18
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerRestricted Stock UnitDisposal2,1900
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesCommon StockAcquisition1,6350
Feb 6, 2026KEENEY, ADAMHead of Corporate DevelopmentRestricted Stock UnitDisposal3,2780
Feb 6, 2026KEENEY, ADAMHead of Corporate DevelopmentCommon StockDisposal994201.18
Feb 6, 2026KRAMER, ROBINChief Financial OfficerCommon StockAcquisition3,5110
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerCommon StockDisposal1,514201.18
Feb 6, 2026IZZAR, RACHIDHead of Global Product Strat.Common StockDisposal775201.18
Feb 6, 2026KRAMER, ROBINChief Financial OfficerCommon StockDisposal273201.18
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechCommon StockDisposal1,408201.18
Feb 6, 2026SINGHAL, PRIYAHead of DevelopmentRestricted Stock UnitDisposal2,2170
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerCommon StockDisposal1,059201.18
Feb 6, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockDisposal1,056201.18
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerRestricted Stock UnitDisposal2570
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerRestricted Stock UnitDisposal3050
Feb 6, 2026MURPHY, NICOLEHead of Pharm Ops and TechRestricted Stock UnitDisposal1,9400
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerCommon StockAcquisition2,1900
Feb 6, 2026GROGAN, JANEHead of ResearchCommon StockAcquisition1,3850
Feb 6, 2026GROGAN, JANEHead of ResearchCommon StockAcquisition1,8730
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerCommon StockDisposal76201.18
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerCommon StockDisposal103201.18
Feb 6, 2026GODBOUT, SEANChief Accounting OfficerCommon StockDisposal180201.18
Feb 6, 2026KRAMER, ROBINChief Financial OfficerRestricted Stock UnitDisposal3,5110
Feb 6, 2026VIEHBACHER, CHRISTOPHERDirector, President and CEOCommon StockAcquisition9,0080
Feb 6, 2026GROGAN, JANEHead of ResearchRestricted Stock UnitDisposal1,8730
Feb 6, 2026GROGAN, JANEHead of ResearchRestricted Stock UnitDisposal1,3850
Feb 6, 2026GROGAN, JANEHead of ResearchCommon StockDisposal407201.18
Feb 6, 2026GREGORY, GINGEREVP, Human ResourcesCommon StockAcquisition3,7460
Feb 6, 2026ALEXANDER, SUSAN HEVP Chief Legal OfficerCommon StockAcquisition1,9400
Feb 2, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockDisposal748179.3
Jan 30, 2026SINGHAL, PRIYAHead of DevelopmentRestricted Stock UnitDisposal1,8290
Jan 30, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockAcquisition1,8290
Jan 30, 2026SINGHAL, PRIYAHead of DevelopmentCommon StockDisposal582179.89
Dec 1, 2025VIEHBACHER, CHRISTOPHERDirector, President and CEOCommon StockDisposal3,404177.78
Dec 1, 2025VIEHBACHER, CHRISTOPHERDirector, President and CEOCommon StockAcquisition7,0400
Dec 1, 2025VIEHBACHER, CHRISTOPHERDirector, President and CEORestricted Stock UnitDisposal7,0400
Oct 31, 2025GROGAN, JANEHead of ResearchCommon StockDisposal337154.27
Oct 31, 2025GROGAN, JANEHead of ResearchRestricted Stock UnitDisposal6950
Oct 31, 2025GROGAN, JANEHead of ResearchCommon StockAcquisition6950
Oct 2, 2025GODBOUT, SEANChief Accounting OfficerRestricted Stock UnitDisposal260
Oct 2, 2025GODBOUT, SEANChief Accounting OfficerCommon StockAcquisition260
Oct 2, 2025GODBOUT, SEANChief Accounting OfficerCommon StockDisposal8155.25