BIIB Insider Transactions
1,530 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
BIIB insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| Minor Lloyd | Director | 2026-08-04 | Sale | 593 | $200.96 |
| Minor Lloyd | Director | 2026-08-03 | Sale | 593 | $203.34 |
| Murphy Nicole | Head of Pharm Ops and Tech | 2026-02-12 | Purchase | 3.0 | $195.04 |
| Singhal Priya | Head of Development | 2026-02-09 | Sale | 2,660.0 | $199.83 |
| Singhal Priya | Head of Development | 2026-02-02 | Sale | 748.0 | $179.3 |
| Singhal Priya | Head of Development | 2025-09-02 | Sale | 517.0 | $133.55 |
| Izzar Rachid | Head of Global Product Strat. | 2025-07-08 | Sale | 2,223.0 | $135.0 |
| Singhal Priya | Head of Development | 2025-05-19 | Sale | 3,806.0 | $126.25 |
| DORSA CAROLINE | Director | 2025-05-02 | Purchase | 1,235.0 | $122.72 |
| SHERWIN STEPHEN A | Director | 2025-03-07 | Sale | 8,760.0 | $150.02 |
| Singhal Priya | Head of Development | 2024-12-09 | Sale | 110.0 | $157.21 |
| Singhal Priya | Head of Development | 2024-09-03 | Sale | 431.0 | $204.22 |
| Singhal Priya | Head of Development | 2024-04-02 | Sale | 93.0 | $213.09 |
| Singhal Priya | Head of Development | 2024-02-22 | Sale | 262.0 | $221.23 |
| Singhal Priya | Head of Development | 2024-02-16 | Sale | 108.0 | $221.49 |
| Rowinsky Eric K | Director | 2024-02-15 | Purchase | 455.0 | $222.54 |
| Singhal Priya | Head of Development | 2024-02-12 | Sale | 419.0 | $239.45 |
| Singhal Priya | Head of Development | 2024-02-02 | Sale | 634.0 | $245.93 |
| Singhal Priya | Head of Development | 2023-12-11 | Sale | 110.0 | $248.0 |
| Singhal Priya | Head of Development | 2023-09-05 | Sale | 431.0 | $269.43 |
| Singhal Priya | Head of Development | 2023-07-03 | Sale | 81.0 | $282.87 |
| Gregory Ginger | EVP, Human Resources | 2023-04-28 | Sale | 2,681.0 | $300.0 |
| Singhal Priya | Head of Development | 2023-04-04 | Sale | 91.0 | $277.11 |
| Singhal Priya | Head of Development | 2023-03-28 | Sale | 568.0 | $270.06 |
| Gregory Ginger | EVP, Human Resources | 2022-11-14 | Sale | 5,610.0 | $300.11 |
| ALEXANDER SUSAN H | EVP Chief Legal Off & Corp Sec | 2022-10-27 | Sale | 5,532.0 | $280.7 |
| Sandrock Alfred | Head of Research & Development | 2021-06-07 | Sale | 7,672.0 | $440.0 |
| Guindo Chirfi | Head of Glob Prod Strat & Com | 2021-06-07 | Sale | 3,087.0 | $440.0 |
| Posner Brian S | Director | 2021-06-04 | Sale | 360.0 | $274.17 |
| Mantas Jesus B | Director | 2021-02-09 | Purchase | 898.0 | $267.0 |
| Vounatsos Michel | Chief Executive Officer | 2020-11-30 | Purchase | 3,100.0 | $241.31 |
| Sandrock Alfred | EVP, Research & Development | 2020-11-04 | Sale | 1,500.0 | $350.0 |
| SHERWIN STEPHEN A | Director | 2020-03-11 | Sale | 270.0 | $295.29 |
| SHERWIN STEPHEN A | Director | 2020-03-11 | Sale | 2,164.0 | $295.22 |
| Posner Brian S | Director | 2019-12-02 | Sale | 1,055.0 | $292.35 |
| DENNER ALEXANDER J | Director | 2019-05-02 | Purchase | 38,000.0 | $231.24 |
| DENNER ALEXANDER J | Director | 2019-05-01 | Purchase | 30,000.0 | $229.46 |
| Vounatsos Michel | Chief Executive Officer | 2019-05-01 | Purchase | 4,351.0 | $231.48 |
| DENNER ALEXANDER J | Director | 2019-04-30 | Purchase | 50,342.0 | $229.25 |
| PANGIA ROBERT W | Director | 2019-03-18 | Sale | 6,114.0 | $328.55 |
| DENNER ALEXANDER J | Director | 2019-02-01 | Purchase | 7,000.0 | $328.45 |
| DENNER ALEXANDER J | Director | 2019-01-31 | Purchase | 25,800.0 | $330.52 |
| DENNER ALEXANDER J | Director | 2019-01-30 | Purchase | 30,000.0 | $324.86 |
| Ehlers Michael D | EVP, Research and Development | 2018-09-26 | Sale | 1,000.0 | $350.0 |
| DENNER ALEXANDER J | Director | 2018-04-25 | Purchase | 48,000.0 | $269.91 |
| Sandrock Alfred | EVP, Chief Medical Officer | 2018-02-27 | Sale | 259.0 | $290.83 |
| Sandrock Alfred | EVP, Chief Medical Officer | 2018-02-23 | Sale | 908.0 | $293.44 |
| Sandrock Alfred | EVP, Chief Medical Officer | 2018-02-20 | Sale | 743.0 | $292.0 |
| Sandrock Alfred | EVP, Chief Medical Officer | 2018-02-15 | Sale | 1,294.0 | $298.85 |
| PANGIA ROBERT W | Director | 2018-01-09 | Sale | 5,832.0 | $329.65 |
| Vounatsos Michel | Chief Executive Officer | 2017-12-29 | Purchase | 780.0 | $320.55 |
| DENNER ALEXANDER J | Director | 2017-11-29 | Purchase | 10,000.0 | $319.84 |
| DENNER ALEXANDER J | Director | 2017-11-28 | Purchase | 20,000.0 | $316.12 |
| ALEXANDER SUSAN H | EVP Chief Legal Corp Svc & Sec | 2017-07-25 | Sale | 4,974.0 | $290.01 |
| ALEXANDER SUSAN H | EVP Chief Legal Corp Svc & Sec | 2017-07-19 | Sale | 7,758.0 | $285.0 |
| Posner Brian S | Director | 2017-06-09 | Sale | 1,084.0 | $256.31 |
| Vounatsos Michel | Chief Executive Officer | 2017-05-01 | Purchase | 1,402.0 | $271.35 |
| DENNER ALEXANDER J | Director | 2017-04-27 | Purchase | 58,858.0 | $278.48 |
| DENNER ALEXANDER J | Director | 2017-04-27 | Purchase | 15,000.0 | $278.58 |
| Clancy Paul J | Executive VP and CFO | 2017-04-25 | Sale | 9,892.0 | $290.0 |
| Sandrock Alfred | EVP CMO Neuro & Neurodegenerat | 2017-04-03 | Sale | 1,981.0 | $274.08 |
| Clancy Paul J | Executive VP and CFO | 2017-03-13 | Sale | 9,891.0 | $291.55 |
| Sandrock Alfred | EVP CMO Neuro & Neurodegenerat | 2017-03-01 | Sale | 973.0 | $290.07 |
| Vounatsos Michel | Chief Executive Officer | 2017-02-27 | Purchase | 1,333.0 | $285.39 |
| PANGIA ROBERT W | Director | 2017-01-09 | Sale | 5,450.0 | $295.39 |
| Karaboutis Adriana | EVP, Tech, Bus. Sol & Corp Aff | 2016-12-01 | Sale | 48.0 | $296.53 |
| Karaboutis Adriana | EVP, Tech, Bus. Sol & Corp Aff | 2016-10-04 | Sale | 262.0 | $311.94 |
| Karaboutis Adriana | EVP, Tech, Bus. Sol & Corp Aff | 2016-10-03 | Sale | 380.0 | $313.0 |
| DORSA CAROLINE | Director | 2016-09-22 | Sale | 27,570.0 | $314.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-07-21 | Sale | 157.0 | $280.0 |
| Koppel Adam | EVP, Strategy and Bus. Dev. | 2016-06-06 | Sale | 555.0 | $290.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-06-03 | Sale | 842.0 | $290.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-06-01 | Sale | 487.0 | $287.97 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-05-31 | Sale | 3,368.0 | $290.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-05-25 | Sale | 157.0 | $280.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-05-02 | Sale | 487.0 | $274.74 |
| Koppel Adam | EVP, Strategy and Bus. Dev. | 2016-04-06 | Sale | 102.0 | $275.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-04-06 | Sale | 157.0 | $280.0 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-04-01 | Sale | 487.0 | $258.83 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-03-01 | Sale | 487.0 | $261.37 |
| Sandrock Alfred | EVP CMO Neuro & Neurodegenerat | 2016-02-25 | Sale | 183.0 | $261.9 |
| Karaboutis Adriana | EVP, Tech, Bus. Sol & Corp Aff | 2016-02-25 | Sale | 84.0 | $261.9 |
| SCANGOS GEORGE A | Chief Executive Officer | 2016-02-17 | Sale | 487.0 | $256.16 |
| Sandrock Alfred | EVP CMO Neuro & Neurodegenerat | 2016-02-17 | Sale | 722.0 | $256.16 |
| Sandrock Alfred | EVP CMO Neuro & Neurodegenerat | 2016-02-09 | Sale | 852.0 | $246.54 |
| Sandrock Alfred | EVP CMO Neuro & Neurodegenerat | 2015-12-04 | Sale | 441.0 | $277.0 |
| Karaboutis Adriana | EVP, Tech. and Bus. Solutions | 2015-12-02 | Sale | 48.0 | $289.14 |
| DENNER ALEXANDER J | Director | 2015-10-23 | Purchase | 100,000.0 | $276.77 |
| DENNER ALEXANDER J | Director | 2015-10-22 | Purchase | 210,000.0 | $277.8 |
| Karaboutis Adriana | EVP, Tech. and Bus. Solutions | 2015-10-05 | Sale | 269.0 | $291.43 |
| Karaboutis Adriana | EVP, Tech. and Bus. Solutions | 2015-10-02 | Sale | 417.0 | $283.38 |
| PAPADOPOULOS STELIOS | Director | 2015-07-27 | Purchase | 5,000.0 | $304.98 |
| PAPADOPOULOS STELIOS | Director | 2015-07-27 | Purchase | 5,000.0 | $304.78 |
| Posner Brian S | Director | 2015-06-22 | Sale | 470.0 | $415.0 |
| WILLIAMS DOUGLAS E | EVP Research & Development | 2015-06-19 | Sale | 3,841.0 | $410.0 |
| Posner Brian S | Director | 2015-06-15 | Sale | 400.0 | $386.64 |
| SCANGOS GEORGE A | Chief Executive Officer | 2015-06-01 | Sale | 1,362.0 | $398.87 |
| SCANGOS GEORGE A | Chief Executive Officer | 2015-05-01 | Sale | 1,362.0 | $377.52 |
| SCANGOS GEORGE A | Chief Executive Officer | 2015-04-01 | Sale | 1,362.0 | $423.2 |
| Sandrock Alfred | Grp SVP, Chief Medical Officer | 2015-03-27 | Sale | 430.0 | $430.12 |