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MARKET_TICKER: BIIB

BIIBInsider Trading & SEC Form 4 Analysis

Institutional analysis of internal capital flows based on SEC Form 4 filings.

Executive Sentiment
BEARISH
SOURCE: EDGAR_SYSTEMSTATUS: VERIFIED

Automated_Intelligence_Report :: BIIB

Algorithmic analysis of recent insider trading activity for BIIB reveals a bearish posture among the C-suite and board members. Based on the latest SEC Form 4 filings, we have tracked capital events executed by 20 distinct corporate insiders. The aggregate nominal exposure during this reporting cycle reached $10.63M.

Market dynamics show a negative net capital flow of $2.68M when isolating open-market purchases versus open-market sales. The trading volume is heavily weighted towards open-market executions, providing a clearer signal of insider conviction regarding current valuation levels compared to option-based equity grants.

From a microstructural perspective, the landscape is fragmented. DORSA CAROLINE led the buying pressure, while SHERWIN STEPHEN A registered the largest single offload of shares. Continuous monitoring of these Tier-1 actors is essential, as their liquidity decisions often precede material corporate events or reflect an informed, asymmetric perspective on the future performance of BIIB.

Volume_30D

$10.63M

USD NOMINAL VALUE
Active_Insiders

20

UNIQUE C-SUITE ENTITIES
Last_Entry

2026.02.12

ISO_8601 FORMAT
INITIALIZING_CHART_ENGINE...
Entity / TimelineMethodologyPositionNet Value
Murphy Nicole2026.02.12
ACQUISITION3$585.11
Singhal Priya2026.02.09
DISPOSAL2,660$531,547.8
Viehbacher Christopher2026.02.06
ACQUISITION9,008$0
Viehbacher Christopher2026.02.06
ACQUISITION4,356$876,340.08
Viehbacher Christopher2026.02.06
ACQUISITION15,453$0
Viehbacher Christopher2026.02.06
ACQUISITION6,624$1,332,616.32
Singhal Priya2026.02.06
ACQUISITION2,217$0
Singhal Priya2026.02.06
ACQUISITION1,056$212,446.08
Singhal Priya2026.02.06
ACQUISITION4,683$0
Singhal Priya2026.02.06
ACQUISITION1,412$284,066.16
Murphy Nicole2026.02.06
ACQUISITION2,102$0
Murphy Nicole2026.02.06
ACQUISITION1,017$204,600.06
Murphy Nicole2026.02.06
ACQUISITION1,940$0
Murphy Nicole2026.02.06
ACQUISITION914$183,878.52
Murphy Nicole2026.02.06
ACQUISITION4,683$0
Murphy Nicole2026.02.06
ACQUISITION1,408$283,261.44
Kramer Robin2026.02.06
ACQUISITION789$0
Kramer Robin2026.02.06
ACQUISITION273$54,922.14
Kramer Robin2026.02.06
ACQUISITION703$0
Kramer Robin2026.02.06
ACQUISITION207$41,644.26
Kramer Robin2026.02.06
ACQUISITION3,511$0
Kramer Robin2026.02.06
ACQUISITION1,063$213,854.34
Keeney Adam2026.02.06
ACQUISITION1,802$0
Keeney Adam2026.02.06
ACQUISITION589$118,495.02
Keeney Adam2026.02.06
ACQUISITION3,278$0
Keeney Adam2026.02.06
ACQUISITION994$199,972.92
Izzar Rachid2026.02.06
ACQUISITION2,044$0
Izzar Rachid2026.02.06
ACQUISITION805$161,949.9
Izzar Rachid2026.02.06
ACQUISITION1,802$0
Izzar Rachid2026.02.06
ACQUISITION458$92,140.44
Izzar Rachid2026.02.06
ACQUISITION3,043$0
Izzar Rachid2026.02.06
ACQUISITION775$155,914.5
Grogan Jane2026.02.06
ACQUISITION1,385$0
Grogan Jane2026.02.06
ACQUISITION407$81,880.26
Grogan Jane2026.02.06
ACQUISITION1,873$0
Grogan Jane2026.02.06
ACQUISITION584$117,489.12
Gregory Ginger2026.02.06
ACQUISITION1,635$0
Gregory Ginger2026.02.06
ACQUISITION791$159,133.38
Gregory Ginger2026.02.06
ACQUISITION1,802$0
Gregory Ginger2026.02.06
ACQUISITION666$133,985.88
Gregory Ginger2026.02.06
ACQUISITION3,746$0
Gregory Ginger2026.02.06
ACQUISITION1,132$227,735.76
Godbout Sean2026.02.06
ACQUISITION257$0
Godbout Sean2026.02.06
ACQUISITION76$15,289.68
Godbout Sean2026.02.06
ACQUISITION305$0
Godbout Sean2026.02.06
ACQUISITION103$20,721.54
Godbout Sean2026.02.06
ACQUISITION517$0
Godbout Sean2026.02.06
ACQUISITION180$36,212.4
ALEXANDER SUSAN H2026.02.06
ACQUISITION2,190$0
ALEXANDER SUSAN H2026.02.06
ACQUISITION1,059$213,049.62
ALEXANDER SUSAN H2026.02.06
ACQUISITION1,940$0
ALEXANDER SUSAN H2026.02.06
ACQUISITION931$187,298.58
ALEXANDER SUSAN H2026.02.06
ACQUISITION4,916$0
ALEXANDER SUSAN H2026.02.06
ACQUISITION1,514$304,586.52
Singhal Priya2026.02.02
DISPOSAL748$134,116.4
Singhal Priya2026.01.30
ACQUISITION1,829$0
Singhal Priya2026.01.30
ACQUISITION582$104,695.98
Viehbacher Christopher2025.12.01
ACQUISITION7,040$0
Viehbacher Christopher2025.12.01
ACQUISITION3,404$605,163.12
Grogan Jane2025.10.31
ACQUISITION695$0
Grogan Jane2025.10.31
ACQUISITION337$51,988.99
Godbout Sean2025.10.02
ACQUISITION26$0
Godbout Sean2025.10.02
ACQUISITION8$1,242
Singhal Priya2025.09.02
DISPOSAL517$69,045.35
Singhal Priya2025.08.29
ACQUISITION1,669$0
Singhal Priya2025.08.29
ACQUISITION807$106,701.54
Izzar Rachid2025.07.08
DISPOSAL2,223$300,105
Minor Lloyd2025.06.17
ACQUISITION2,370$0
Patolawala Monish D2025.06.17
ACQUISITION2,370$0
Mantas Jesus B2025.06.17
ACQUISITION2,370$0
HAWKINS WILLIAM A2025.06.17
ACQUISITION2,370$0
Freire Maria C2025.06.17
ACQUISITION2,370$0
Rowinsky Eric K2025.06.17
ACQUISITION2,370$0
SHERWIN STEPHEN A2025.06.17
ACQUISITION2,370$0
LANGER SUSAN2025.06.17
ACQUISITION2,370$0
DORSA CAROLINE2025.06.17
ACQUISITION3,160$0
Singhal Priya2025.05.19
DISPOSAL3,806$480,507.5
DORSA CAROLINE2025.05.02
ACQUISITION1,235$151,559.2
Keeney Adam2025.05.01
ACQUISITION938$0
Keeney Adam2025.05.01
ACQUISITION454$54,902.22
SHERWIN STEPHEN A2025.03.07
DISPOSAL8,760$1,314,141.91
Singhal Priya2025.02.10
ACQUISITION1,212$0
Singhal Priya2025.02.10
ACQUISITION357$50,886.78
Murphy Nicole2025.02.10
ACQUISITION2,272$0
Murphy Nicole2025.02.10
ACQUISITION670$95,501.8
MCDONNELL MICHAEL R2025.02.10
ACQUISITION3,257$0
MCDONNELL MICHAEL R2025.02.10
ACQUISITION1,371$195,422.34
Kramer Robin2025.02.10
ACQUISITION834$0
Kramer Robin2025.02.10
ACQUISITION245$34,922.3
Gregory Ginger2025.02.10
ACQUISITION2,159$0
Gregory Ginger2025.02.10
ACQUISITION634$90,370.36
ALEXANDER SUSAN H2025.02.10
ACQUISITION2,575$0
ALEXANDER SUSAN H2025.02.10
ACQUISITION807$115,029.78
Izzar Rachid2025.02.10
ACQUISITION1,515$0
Izzar Rachid2025.02.10
ACQUISITION445$63,430.3
Izzar Rachid2025.02.07
ACQUISITION2,043$0
Izzar Rachid2025.02.07
ACQUISITION600$84,810
Izzar Rachid2025.02.07
ACQUISITION565$79,862.75
Izzar Rachid2025.02.07
ACQUISITION1,801$0
MCDONNELL MICHAEL R2025.02.07
ACQUISITION2,335$0
Entity / TimelineMethodologyPositionNet Value
Murphy Nicole2026.02.12
ACQUISITION3$585.11
Singhal Priya2026.02.09
DISPOSAL2,660$531,547.8
Viehbacher Christopher2026.02.06
ACQUISITION9,008$0
Viehbacher Christopher2026.02.06
ACQUISITION4,356$876,340.08
Viehbacher Christopher2026.02.06
ACQUISITION15,453$0
Viehbacher Christopher2026.02.06
ACQUISITION6,624$1,332,616.32
Singhal Priya2026.02.06
ACQUISITION2,217$0
Singhal Priya2026.02.06
ACQUISITION1,056$212,446.08
Singhal Priya2026.02.06
ACQUISITION4,683$0
Singhal Priya2026.02.06
ACQUISITION1,412$284,066.16
Murphy Nicole2026.02.06
ACQUISITION2,102$0
Murphy Nicole2026.02.06
ACQUISITION1,017$204,600.06
Murphy Nicole2026.02.06
ACQUISITION1,940$0
Murphy Nicole2026.02.06
ACQUISITION914$183,878.52
Murphy Nicole2026.02.06
ACQUISITION4,683$0
Murphy Nicole2026.02.06
ACQUISITION1,408$283,261.44
Kramer Robin2026.02.06
ACQUISITION789$0
Kramer Robin2026.02.06
ACQUISITION273$54,922.14
Kramer Robin2026.02.06
ACQUISITION703$0
Kramer Robin2026.02.06
ACQUISITION207$41,644.26
Kramer Robin2026.02.06
ACQUISITION3,511$0
Kramer Robin2026.02.06
ACQUISITION1,063$213,854.34
Keeney Adam2026.02.06
ACQUISITION1,802$0
Keeney Adam2026.02.06
ACQUISITION589$118,495.02
Keeney Adam2026.02.06
ACQUISITION3,278$0
Keeney Adam2026.02.06
ACQUISITION994$199,972.92
Izzar Rachid2026.02.06
ACQUISITION2,044$0
Izzar Rachid2026.02.06
ACQUISITION805$161,949.9
Izzar Rachid2026.02.06
ACQUISITION1,802$0
Izzar Rachid2026.02.06
ACQUISITION458$92,140.44
Izzar Rachid2026.02.06
ACQUISITION3,043$0
Izzar Rachid2026.02.06
ACQUISITION775$155,914.5
Grogan Jane2026.02.06
ACQUISITION1,385$0
Grogan Jane2026.02.06
ACQUISITION407$81,880.26
Grogan Jane2026.02.06
ACQUISITION1,873$0
Grogan Jane2026.02.06
ACQUISITION584$117,489.12
Gregory Ginger2026.02.06
ACQUISITION1,635$0
Gregory Ginger2026.02.06
ACQUISITION791$159,133.38
Gregory Ginger2026.02.06
ACQUISITION1,802$0
Gregory Ginger2026.02.06
ACQUISITION666$133,985.88
Gregory Ginger2026.02.06
ACQUISITION3,746$0
Gregory Ginger2026.02.06
ACQUISITION1,132$227,735.76
Godbout Sean2026.02.06
ACQUISITION257$0
Godbout Sean2026.02.06
ACQUISITION76$15,289.68
Godbout Sean2026.02.06
ACQUISITION305$0
Godbout Sean2026.02.06
ACQUISITION103$20,721.54
Godbout Sean2026.02.06
ACQUISITION517$0
Godbout Sean2026.02.06
ACQUISITION180$36,212.4
ALEXANDER SUSAN H2026.02.06
ACQUISITION2,190$0
ALEXANDER SUSAN H2026.02.06
ACQUISITION1,059$213,049.62
ALEXANDER SUSAN H2026.02.06
ACQUISITION1,940$0
ALEXANDER SUSAN H2026.02.06
ACQUISITION931$187,298.58
ALEXANDER SUSAN H2026.02.06
ACQUISITION4,916$0
ALEXANDER SUSAN H2026.02.06
ACQUISITION1,514$304,586.52
Singhal Priya2026.02.02
DISPOSAL748$134,116.4
Singhal Priya2026.01.30
ACQUISITION1,829$0
Singhal Priya2026.01.30
ACQUISITION582$104,695.98
Viehbacher Christopher2025.12.01
ACQUISITION7,040$0
Viehbacher Christopher2025.12.01
ACQUISITION3,404$605,163.12
Grogan Jane2025.10.31
ACQUISITION695$0
Grogan Jane2025.10.31
ACQUISITION337$51,988.99
Godbout Sean2025.10.02
ACQUISITION26$0
Godbout Sean2025.10.02
ACQUISITION8$1,242
Singhal Priya2025.09.02
DISPOSAL517$69,045.35
Singhal Priya2025.08.29
ACQUISITION1,669$0
Singhal Priya2025.08.29
ACQUISITION807$106,701.54
Izzar Rachid2025.07.08
DISPOSAL2,223$300,105
Minor Lloyd2025.06.17
ACQUISITION2,370$0
Patolawala Monish D2025.06.17
ACQUISITION2,370$0
Mantas Jesus B2025.06.17
ACQUISITION2,370$0
HAWKINS WILLIAM A2025.06.17
ACQUISITION2,370$0
Freire Maria C2025.06.17
ACQUISITION2,370$0
Rowinsky Eric K2025.06.17
ACQUISITION2,370$0
SHERWIN STEPHEN A2025.06.17
ACQUISITION2,370$0
LANGER SUSAN2025.06.17
ACQUISITION2,370$0
DORSA CAROLINE2025.06.17
ACQUISITION3,160$0
Singhal Priya2025.05.19
DISPOSAL3,806$480,507.5
DORSA CAROLINE2025.05.02
ACQUISITION1,235$151,559.2
Keeney Adam2025.05.01
ACQUISITION938$0
Keeney Adam2025.05.01
ACQUISITION454$54,902.22
SHERWIN STEPHEN A2025.03.07
DISPOSAL8,760$1,314,141.91
Singhal Priya2025.02.10
ACQUISITION1,212$0
Singhal Priya2025.02.10
ACQUISITION357$50,886.78
Murphy Nicole2025.02.10
ACQUISITION2,272$0
Murphy Nicole2025.02.10
ACQUISITION670$95,501.8
MCDONNELL MICHAEL R2025.02.10
ACQUISITION3,257$0
MCDONNELL MICHAEL R2025.02.10
ACQUISITION1,371$195,422.34
Kramer Robin2025.02.10
ACQUISITION834$0
Kramer Robin2025.02.10
ACQUISITION245$34,922.3
Gregory Ginger2025.02.10
ACQUISITION2,159$0
Gregory Ginger2025.02.10
ACQUISITION634$90,370.36
ALEXANDER SUSAN H2025.02.10
ACQUISITION2,575$0
ALEXANDER SUSAN H2025.02.10
ACQUISITION807$115,029.78
Izzar Rachid2025.02.10
ACQUISITION1,515$0
Izzar Rachid2025.02.10
ACQUISITION445$63,430.3
Izzar Rachid2025.02.07
ACQUISITION2,043$0
Izzar Rachid2025.02.07
ACQUISITION600$84,810
Izzar Rachid2025.02.07
ACQUISITION565$79,862.75
Izzar Rachid2025.02.07
ACQUISITION1,801$0
MCDONNELL MICHAEL R2025.02.07
ACQUISITION2,335$0

Automated_Queries :: Frequently Asked Questions

>Who is currently buying BIIB stock?

Based on the latest SEC Form 4 filings, DORSA CAROLINE (Director) has been actively acquiring shares. The total recent insider buying volume stands at $0.15M.

>Are BIIB insiders selling their shares?

Yes, we have tracked $2.83M in recent insider liquidations. The most notable recent seller is SHERWIN STEPHEN A, who executed the largest single offload.

>What is the overall insider sentiment for BIIB?

The short-term structural capital flow indicates a BEARISH sentiment, with a net flow of $2.68M generated by 20 active C-Suite entities.

SECTOR_PEERS :: Healthcare

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