Biogen Inc. (BIIB)
NasdaqGS • Currently down 2.52 (-1.26%) in today's trading session
4 members of Congress have disclosed 17 trades in Biogen Inc. (BIIB) via STOCK Act filings. The most recent disclosure was a purchase by Gilbert Cisneros on 30 January 2026. The most active traders have been Josh Gottheimer (7), Gilbert Cisneros (6), and Shri Thanedar (2). Aggregate disclosed activity totals roughly $64K in purchases and $121K in sales (midpoint estimates from bracketed disclosure amounts).
Biogen Inc. is currently trading at $197.19, positioned at 90% of its 52-week range ($121.05 – $205.97).
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Biogen Inc. Price History and Technical Analysis
Congressional Trading Activity for BIIB
| Gilbert Cisneros | 30 Jan 2026 | 13 Feb 2026 | Purchase | Stock | $1,001 - $15,000 | +11.93% | |
| Shri Thanedar | 23 Jan 2023 | 9 Feb 2023 | Sale | Stock | $15,001 - $50,000 | N/A | |
| Kathy Manning | 3 Aug 2022 | 14 Sept 2022 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Kathy Manning | 14 Jan 2022 | 11 Feb 2022 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Josh Gottheimer | 18 Oct 2021 | 15 Nov 2021 | Purchase | Stock | $1,001 - $15,000 | N/A | |
| Josh Gottheimer | 15 Sept 2021 | 13 Oct 2021 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Gilbert Cisneros | 22 Dec 2020 | 11 Jan 2021 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Gilbert Cisneros | 16 Sept 2020 | 14 Oct 2020 | Purchase | Stock | $1,001 - $15,000 | N/A | |
| Josh Gottheimer | 7 Jul 2020 | 10 Aug 2020 | Purchase | Stock | $1,001 - $15,000 | N/A | |
| Gilbert Cisneros | 29 Apr 2020 | 13 May 2020 | Purchase | Stock | $1,001 - $15,000 | N/A | |
| Gilbert Cisneros | 7 Feb 2020 | 10 Mar 2020 | Purchase | Stock | $1,001 - $15,000 | N/A | |
| Gilbert Cisneros | 9 May 2019 | 18 Jun 2019 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Josh Gottheimer | 29 Oct 2018 | 16 Nov 2018 | Sale | Stock | $1,001 - $15,000 | N/A |
Select transactions to view their annotations on the chart
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Frequently Asked Questions about BIIB
- Which members of Congress have traded BIIB?
- 4 members of Congress have disclosed 17 trades in Biogen Inc. (BIIB) under the STOCK Act. The most active traders are Josh Gottheimer, Gilbert Cisneros, and Shri Thanedar.
- When was BIIB most recently disclosed by Congress?
- The most recent BIIB disclosure was a purchase by Gilbert Cisneros on 30 January 2026.
- What is the total disclosed congressional trading volume for BIIB?
- Members of Congress have disclosed approximately $64K in BIIB purchases and $121K in sales. These figures are midpoint estimates derived from the bracketed amount ranges used in STOCK Act filings.
- How can I track new congressional trades in BIIB?
- This BIIB page updates as soon as new STOCK Act disclosures are filed for Biogen Inc.. Every trade, politician, transaction date and amount range is surfaced above, typically within hours of the official filing appearing on the House or Senate disclosure portals.
Track BIIB in Congress
See when politicians buy or sell this stock