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BIIB · Biogen Inc. · Proposed Sales

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$253.40 +2.92 (+1.17%) At close · Nov 13 Play latest call Q3 2026 earnings call transcript
S&P 500 member Russell 1000 member Rebalance outlook locked
Market Cap
$37.46B
Shares
147.82M
Volume · Nov 13 1.03M Avg daily vol (3M) 1.07M

Notices of intent to sell restricted or control shares, filed with the SEC on Form 144 by insiders and affiliates. A Form 144 signals a planned sale — it does not confirm the shares were actually sold.

Filed Seller Shares
2026-08-04 Minor Lloyd 593
2026-08-03 Minor Lloyd 593
2026-02-09 Singhal Priya 2,660
2026-02-02 Singhal Priya 748
2025-09-02 Singhal Priya 517
2025-07-08 Izzar Rachid 2,223
2025-05-19 Singhal Priya 3,806
2025-03-07 STEPHEN A SHERWIN 8,760
2024-12-09 Singhal Priya 110
2024-09-03 Singhal Priya 431
2024-04-02 Singhal Priya 93
2024-02-22 Singhal Priya 262
2024-02-21 Singhal Priya 108
2024-02-12 Singhal Priya 419
2024-02-02 Singhal Priya 634
2023-12-11 Singhal Priya 110
2023-09-05 Singhal Priya 431
2023-07-03 Singhal Priya 81
2023-04-28 Gregory Ginger 2,681
2023-04-04 Singhal Priya 91
2023-03-28 Singhal Priya 568
Showing 1–21 of 21 filings
Key facts CIK 875045 CUSIP 09062X103 13F (30d) 852 filings 783 filers Visit website Investor relations