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Company / CIK 0000875045

BIOGEN INC.

Ticker
BIIB
Size, estimated from filings
Large cap ($10B – $200B)
Insiders on file
20
Members of Congress who traded it
4
Federal contracts on record
none matched
Lobbying filings on record
21
SEC filings
EDGAR ↗
Latest trade on record
October 2, 2026

BIOGEN INC. (BIIB) has 20 insiders on file who disclosed 124 transactions in the last 12 months (1 open-market buy, 36 sales, about $7.7M at reported prices), and 9 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name, and 10 lobbying filings naming it as client report $2.9M in 2026.

Last updated October 19, 2026 · Sources: SEC EDGAR; USAspending; Senate LDA

BIOGEN INC. in charts

Who is trading this stock

Which people account for the buying and selling over the last 12 months?

BoughtSold

8 people account for the disclosed buying and selling in BIOGEN INC. over the last 12 months; the most active is Viehbacher Christopher with $2.8M.

Lobbying spend by quarter

How much has BIOGEN INC. reported spending on federal lobbying?

Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26Q4 26
Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26Q4 26

BIOGEN INC. reported $5.1M in lobbying over the last eight quarters, from filings matched by exact company name.

Insiders

NameRoleRowsBoughtSoldLast filed
Godbout SeanChief Accounting Officer2006October 5, 2026
Parini MichaelChief Legal Officer100September 3, 2026
Minor LloydDirector302August 5, 2026
Patolawala Monish DDirector100August 5, 2026
Freire Maria CDirector100June 11, 2026
Pangalos Menelas NDirector300June 11, 2026
LANGER SUSANDirector100June 11, 2026
Mantas Jesus BDirector100June 11, 2026
Rowinsky Eric KDirector100June 11, 2026
SHERWIN STEPHEN ADirector100June 11, 2026
HAWKINS WILLIAM ADirector100June 11, 2026
Keeney AdamHead of Corporate Development1003May 5, 2026
Singhal PriyaHead of Development1205February 17, 2026
ALEXANDER SUSAN HEVP Chief Legal Officer1003February 17, 2026
Gregory GingerEVP, Human Resources1003February 17, 2026
Grogan JaneHead of Research1003February 17, 2026
Izzar RachidHead of Global Product Strat.1003February 17, 2026
Kramer RobinChief Financial Officer1003February 17, 2026
Murphy NicoleHead of Pharm Ops and Tech1113February 17, 2026
Viehbacher ChristopherPresident and CEO1003February 17, 2026

Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.

Members of Congress who traded BIIB

From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the BIIB page.

MemberSeatTradesBoughtSoldRange as filedLatest
Maria Elvira SalazarRepresentative (FL, District 27), Republican532$68K–$195KSeptember 24, 2026
Gilbert Ray Cisneros, Jr.Representative (CA, District 31), Democrat220$2,002–$30KJune 5, 2026
Kevin HernRepresentative (OK, District 1), Republican101$1,001–$15KAugust 18, 2026
Alan ArmstrongSenator (OK), Republican110$1,001–$15KMarch 27, 2026

Insider transactions

Download CSV136 rows · 44 KB · insider and congressional rows for this ticker · all downloads

FilerSecuritySideTrade dateDisclosedLagSharesPriceValueFlagsSourceShare
Godbout SeanBIIBOption / conversion MOctober 2, 2026October 5, 20263d27——derivativeForm 4 ↗
Godbout SeanBIIBOther AOctober 1, 2026October 5, 20264d985——derivativeForm 4 ↗
Godbout SeanBIIBSell FOctober 2, 2026October 5, 20263d8$220$1,759Form 4 ↗
Godbout SeanBIIBOption / conversion MOctober 2, 2026October 5, 20263d27——Form 4 ↗
Parini MichaelBIIBOther ASeptember 1, 2026September 3, 20262d7,405——derivativeForm 4 ↗
Minor LloydBIIBSell SAugust 4, 2026August 5, 20261d593$201$119K10b5-1 planForm 4 ↗
Minor LloydBIIBSell SAugust 3, 2026August 5, 20262d593$203$121K10b5-1 planForm 4 ↗
HAWKINS WILLIAM ABIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
SHERWIN STEPHEN ABIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
Rowinsky Eric KBIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
Mantas Jesus BBIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
LANGER SUSANBIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
Patolawala Monish DBIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
Pangalos Menelas NBIIBOption / conversion MJune 9, 2026June 11, 20262d2,370——derivativeForm 4 ↗
Pangalos Menelas NBIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
Pangalos Menelas NBIIBOption / conversion MJune 9, 2026June 11, 20262d2,370——Form 4 ↗
Minor LloydBIIBOther AJune 9, 2026June 11, 20262d1,505——Form 4 ↗
Freire Maria CBIIBOther AJune 9, 2026June 11, 20262d2,005——Form 4 ↗
Keeney AdamBIIBOption / conversion MMay 1, 2026May 5, 20264d939——derivativeForm 4 ↗
Keeney AdamBIIBSell FMay 1, 2026May 5, 20264d455$187$85KForm 4 ↗
Keeney AdamBIIBOption / conversion MMay 1, 2026May 5, 20264d939——Form 4 ↗
Godbout SeanBIIBOption / conversion MApril 1, 2026April 3, 20262d181——derivativeForm 4 ↗
Godbout SeanBIIBSell FApril 1, 2026April 3, 20262d54$184$9,924Form 4 ↗
Godbout SeanBIIBOption / conversion MApril 1, 2026April 3, 20262d181——Form 4 ↗
Viehbacher ChristopherBIIBOther AFebruary 13, 2026February 17, 20264d38,015——derivativeForm 4 ↗
Singhal PriyaBIIBOther AFebruary 13, 2026February 17, 20264d10,560——derivativeForm 4 ↗
Murphy NicoleBIIBOther AFebruary 13, 2026February 17, 20264d10,560——derivativeForm 4 ↗
Murphy NicoleBIIBBuy PFebruary 12, 2026February 17, 20265d3$195$585lateForm 4 ↗
Kramer RobinBIIBOther AFebruary 13, 2026February 17, 20264d8,450——derivativeForm 4 ↗
Keeney AdamBIIBOther AFebruary 13, 2026February 17, 20264d8,025——derivativeForm 4 ↗
Izzar RachidBIIBOther AFebruary 13, 2026February 17, 20264d7,390——derivativeForm 4 ↗
Grogan JaneBIIBOther AFebruary 13, 2026February 17, 20264d8,450——derivativeForm 4 ↗
Gregory GingerBIIBOther AFebruary 13, 2026February 17, 20264d8,025——derivativeForm 4 ↗
Godbout SeanBIIBOther AFebruary 13, 2026February 17, 20264d1,800——derivativeForm 4 ↗
ALEXANDER SUSAN HBIIBOther AFebruary 13, 2026February 17, 20264d8,450——derivativeForm 4 ↗
Viehbacher ChristopherBIIBOption / conversion MFebruary 6, 2026February 10, 20264d15,453——derivativeForm 4 ↗
Viehbacher ChristopherBIIBOption / conversion MFebruary 6, 2026February 10, 20264d9,008——derivativeForm 4 ↗
Viehbacher ChristopherBIIBSell FFebruary 6, 2026February 10, 20264d6,624$201$1.3MForm 4 ↗
Viehbacher ChristopherBIIBOption / conversion MFebruary 6, 2026February 10, 20264d15,453——Form 4 ↗
Viehbacher ChristopherBIIBSell FFebruary 6, 2026February 10, 20264d4,356$201$876KForm 4 ↗
Viehbacher ChristopherBIIBOption / conversion MFebruary 6, 2026February 10, 20264d9,008——Form 4 ↗
Singhal PriyaBIIBOption / conversion MFebruary 6, 2026February 10, 20264d4,683——10b5-1 planderivativeForm 4 ↗
Singhal PriyaBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,217——10b5-1 planderivativeForm 4 ↗
Singhal PriyaBIIBSell SFebruary 9, 2026February 10, 20261d2,660$200$532K10b5-1 planForm 4 ↗
Singhal PriyaBIIBSell FFebruary 6, 2026February 10, 20264d1,412$201$284K10b5-1 planForm 4 ↗
Singhal PriyaBIIBOption / conversion MFebruary 6, 2026February 10, 20264d4,683——10b5-1 planForm 4 ↗
Singhal PriyaBIIBSell FFebruary 6, 2026February 10, 20264d1,056$201$212K10b5-1 planForm 4 ↗
Singhal PriyaBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,217——10b5-1 planForm 4 ↗
Murphy NicoleBIIBOption / conversion MFebruary 6, 2026February 10, 20264d4,683——derivativeForm 4 ↗
Murphy NicoleBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,940——derivativeForm 4 ↗
Murphy NicoleBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,102——derivativeForm 4 ↗
Murphy NicoleBIIBSell FFebruary 6, 2026February 10, 20264d1,408$201$283KForm 4 ↗
Murphy NicoleBIIBOption / conversion MFebruary 6, 2026February 10, 20264d4,683——Form 4 ↗
Murphy NicoleBIIBSell FFebruary 6, 2026February 10, 20264d914$201$184KForm 4 ↗
Murphy NicoleBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,940——Form 4 ↗
Murphy NicoleBIIBSell FFebruary 6, 2026February 10, 20264d1,017$201$205KForm 4 ↗
Murphy NicoleBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,102——Form 4 ↗
Kramer RobinBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,511——derivativeForm 4 ↗
Kramer RobinBIIBOption / conversion MFebruary 6, 2026February 10, 20264d703——derivativeForm 4 ↗
Kramer RobinBIIBOption / conversion MFebruary 6, 2026February 10, 20264d789——derivativeForm 4 ↗
Kramer RobinBIIBSell FFebruary 6, 2026February 10, 20264d1,063$201$214KForm 4 ↗
Kramer RobinBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,511——Form 4 ↗
Kramer RobinBIIBSell FFebruary 6, 2026February 10, 20264d207$201$42KForm 4 ↗
Kramer RobinBIIBOption / conversion MFebruary 6, 2026February 10, 20264d703——Form 4 ↗
Kramer RobinBIIBSell FFebruary 6, 2026February 10, 20264d273$201$55KForm 4 ↗
Kramer RobinBIIBOption / conversion MFebruary 6, 2026February 10, 20264d789——Form 4 ↗
Keeney AdamBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,278——derivativeForm 4 ↗
Keeney AdamBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,802——derivativeForm 4 ↗
Keeney AdamBIIBSell FFebruary 6, 2026February 10, 20264d994$201$200KForm 4 ↗
Keeney AdamBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,278——Form 4 ↗
Keeney AdamBIIBSell FFebruary 6, 2026February 10, 20264d589$201$118KForm 4 ↗
Keeney AdamBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,802——Form 4 ↗
Izzar RachidBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,043——derivativeForm 4 ↗
Izzar RachidBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,802——derivativeForm 4 ↗
Izzar RachidBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,044——derivativeForm 4 ↗
Izzar RachidBIIBSell FFebruary 6, 2026February 10, 20264d775$201$156KForm 4 ↗
Izzar RachidBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,043——Form 4 ↗
Izzar RachidBIIBSell FFebruary 6, 2026February 10, 20264d458$201$92KForm 4 ↗
Izzar RachidBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,802——Form 4 ↗
Izzar RachidBIIBSell FFebruary 6, 2026February 10, 20264d805$201$162KForm 4 ↗
Izzar RachidBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,044——Form 4 ↗
Grogan JaneBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,873——derivativeForm 4 ↗
Grogan JaneBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,385——derivativeForm 4 ↗
Grogan JaneBIIBSell FFebruary 6, 2026February 10, 20264d584$201$117KForm 4 ↗
Grogan JaneBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,873——Form 4 ↗
Grogan JaneBIIBSell FFebruary 6, 2026February 10, 20264d407$201$82KForm 4 ↗
Grogan JaneBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,385——Form 4 ↗
Gregory GingerBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,746——derivativeForm 4 ↗
Gregory GingerBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,802——derivativeForm 4 ↗
Gregory GingerBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,635——derivativeForm 4 ↗
Gregory GingerBIIBSell FFebruary 6, 2026February 10, 20264d1,132$201$228KForm 4 ↗
Gregory GingerBIIBOption / conversion MFebruary 6, 2026February 10, 20264d3,746——Form 4 ↗
Gregory GingerBIIBSell FFebruary 6, 2026February 10, 20264d666$201$134KForm 4 ↗
Gregory GingerBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,802——Form 4 ↗
Gregory GingerBIIBSell FFebruary 6, 2026February 10, 20264d791$201$159KForm 4 ↗
Gregory GingerBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,635——Form 4 ↗
Godbout SeanBIIBOption / conversion MFebruary 6, 2026February 10, 20264d517——derivativeForm 4 ↗
Godbout SeanBIIBOption / conversion MFebruary 6, 2026February 10, 20264d305——derivativeForm 4 ↗
Godbout SeanBIIBOption / conversion MFebruary 6, 2026February 10, 20264d257——derivativeForm 4 ↗
Godbout SeanBIIBSell FFebruary 6, 2026February 10, 20264d180$201$36KForm 4 ↗
Godbout SeanBIIBOption / conversion MFebruary 6, 2026February 10, 20264d517——Form 4 ↗
Godbout SeanBIIBSell FFebruary 6, 2026February 10, 20264d103$201$21KForm 4 ↗
Godbout SeanBIIBOption / conversion MFebruary 6, 2026February 10, 20264d305——Form 4 ↗
Godbout SeanBIIBSell FFebruary 6, 2026February 10, 20264d76$201$15KForm 4 ↗
Godbout SeanBIIBOption / conversion MFebruary 6, 2026February 10, 20264d257——Form 4 ↗
ALEXANDER SUSAN HBIIBOption / conversion MFebruary 6, 2026February 10, 20264d4,916——derivativeForm 4 ↗
ALEXANDER SUSAN HBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,940——derivativeForm 4 ↗
ALEXANDER SUSAN HBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,190——derivativeForm 4 ↗
ALEXANDER SUSAN HBIIBSell FFebruary 6, 2026February 10, 20264d1,514$201$305KForm 4 ↗
ALEXANDER SUSAN HBIIBOption / conversion MFebruary 6, 2026February 10, 20264d4,916——Form 4 ↗
ALEXANDER SUSAN HBIIBSell FFebruary 6, 2026February 10, 20264d931$201$187KForm 4 ↗
ALEXANDER SUSAN HBIIBOption / conversion MFebruary 6, 2026February 10, 20264d1,940——Form 4 ↗
ALEXANDER SUSAN HBIIBSell FFebruary 6, 2026February 10, 20264d1,059$201$213KForm 4 ↗
ALEXANDER SUSAN HBIIBOption / conversion MFebruary 6, 2026February 10, 20264d2,190——Form 4 ↗
Singhal PriyaBIIBOption / conversion MJanuary 30, 2026February 3, 20264d1,829——10b5-1 planderivativeForm 4 ↗
Singhal PriyaBIIBSell SFebruary 2, 2026February 3, 20261d748$179$134K10b5-1 planForm 4 ↗
Singhal PriyaBIIBSell FJanuary 30, 2026February 3, 20264d582$180$105K10b5-1 planForm 4 ↗
Singhal PriyaBIIBOption / conversion MJanuary 30, 2026February 3, 20264d1,829——10b5-1 planForm 4 ↗
Viehbacher ChristopherBIIBOption / conversion MDecember 1, 2025December 3, 20252d7,040——derivativeForm 4 ↗
Viehbacher ChristopherBIIBSell FDecember 1, 2025December 3, 20252d3,404$178$605KForm 4 ↗
Viehbacher ChristopherBIIBOption / conversion MDecember 1, 2025December 3, 20252d7,040——Form 4 ↗
Grogan JaneBIIBOption / conversion MOctober 31, 2025November 4, 20254d695——derivativeForm 4 ↗
Grogan JaneBIIBSell FOctober 31, 2025November 4, 20254d337$154$52KForm 4 ↗
Grogan JaneBIIBOption / conversion MOctober 31, 2025November 4, 20254d695——Form 4 ↗
Godbout SeanBIIBOption / conversion MOctober 2, 2025October 6, 20254d26——derivativeForm 4 ↗
Godbout SeanBIIBSell FOctober 2, 2025October 6, 20254d8$155$1,242Form 4 ↗
Godbout SeanBIIBOption / conversion MOctober 2, 2025October 6, 20254d26——Form 4 ↗

Federal contracts (USAspending, awards started in the last 180 days)

No contract award starting in the last 180 days was found for a recipient named exactly "BIOGEN INC.". Subsidiaries and differently-spelled recipients are not matched — search contracts.

Lobbying (Senate LDA, as client)

PeriodRegistrantPrimary issueAmountSource
2026 Q3TODD STRATEGY GROUPHealth Issues$50,000LDA ↗
2026 Q3FEDERAL STREET STRATEGIES, LLCHealth Issues$50,000LDA ↗
2026 Q2BIOGENHealth Issues$1,060,000LDA ↗
2026 Q2DLA PIPER LLP (US)Pharmacy$60,000LDA ↗
2026 Q2TODD STRATEGY GROUPMedicare/Medicaid$50,000LDA ↗
2026 Q2FEDERAL STREET STRATEGIES, LLCHealth Issues$50,000LDA ↗
2026 Q1BIOGENMedicare/Medicaid$1,460,000LDA ↗
2026 Q1DLA PIPER LLP (US)Taxation/Internal Revenue Code$60,000LDA ↗
2026 Q1TODD STRATEGY GROUPMedicare/Medicaid$50,000LDA ↗
2026 Q1FEDERAL STREET STRATEGIES, LLCHealth Issues$50,000LDA ↗
2025 Q4BIOGENMedicare/Medicaid$770,000LDA ↗
2025 Q4DLA PIPER LLP (US)Health Issues$60,000LDA ↗
2025 Q4FEDERAL STREET STRATEGIES, LLCHealth Issues$50,000LDA ↗
2025 Q4JEFFREY J. KIMBELL & ASSOCIATES, INC.Medicare/Medicaid$50,000LDA ↗
2025 Q4TODD STRATEGY GROUPMedicare/Medicaid$50,000LDA ↗
2025 Q3BIOGENPharmacy$990,000LDA ↗
2025 Q3DLA PIPER LLP (US)Health Issues$60,000LDA ↗
2025 Q3JEFFREY J. KIMBELL & ASSOCIATES, INC.Medicare/Medicaid$50,000LDA ↗
2025 Q3FEDERAL STREET STRATEGIES, LLCHealth Issues$50,000LDA ↗
2025 Q3TODD STRATEGY GROUPMedicare/Medicaid$50,000LDA ↗
2024 Q4JEFFREY J. KIMBELL & ASSOCIATES, INC.Medicare/Medicaid$50,000LDA ↗

Companies whose stock was traded by the same people who traded BIIB, by number of filers in common. It shows overlap in public filings and nothing else.

Guides for this page

Sources and method

Official sources behind this page
SourceFilingsRowsFirst filedNewest filedRead the originals
House Clerk, periodic transaction reports68February 13, 2026October 7, 2026House Clerk search
Senate eFD, periodic transaction reports11July 21, 2026July 21, 2026Senate eFD search
SEC EDGAR, Form 438127October 6, 2025October 5, 2026Form 4 list on EDGAR
Lobbying disclosure filings21 filings———LDA.gov search

Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.

Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.

Not investment advice. Public records shown as filed; no recommendation is made or implied.