BIOGEN INC. (BIIB)
Data as of , from SEC Form 4 filings.
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About BIOGEN INC. (BIIB)
BIOGEN INC. is an SEC registrant, filing under CIK 0000875045, classified as biological products (no diagnostic substances). We track it alongside the rest of the Health Care sector.
BIIB Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 2 | 1,186 | $240K |
| Grant or award | 2 | 8,390 | |
| Option exercise | 4 | 1,444 | |
BIIB insider transactions (Form 4)
7649 Form 4 filings on record, the earliest from Nov 4, 2024, newest first. Filing history page 2 of 2.
| Traded | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Rachid Izzar - Officer | Tax withholding / forfeiture | Common Stock | 805 | $201.18 | $162K | |
| Rachid Izzar - Officer | Option exercise | Common Stock | 1,802 | $0.00 | - | |
| Rachid Izzar - Officer | Tax withholding / forfeiture | Common Stock | 458 | $201.18 | $92K | |
| Rachid Izzar - Officer | Option exercise | Common Stock | 3,043 | $0.00 | - | |
| Rachid Izzar - Officer | Tax withholding / forfeiture | Common Stock | 775 | $201.18 | $156K | |
| Rachid Izzar - Officer | Option exercise | Common Stock | 2,044 | $0.00 | - | |
| Rachid Izzar - Officer | Option exercise | Restricted Stock Unit | 2,044 | $0.00 | - | |
| Rachid Izzar - Officer | Option exercise | Restricted Stock Unit | 1,802 | $0.00 | - | |
| Rachid Izzar - Officer | Option exercise | Restricted Stock Unit | 3,043 | $0.00 | - | |
| Jane Grogan - Officer | Option exercise | Common Stock | 1,385 | $0.00 | - | |
| Jane Grogan - Officer | Tax withholding / forfeiture | Common Stock | 407 | $201.18 | $82K | |
| Jane Grogan - Officer | Option exercise | Common Stock | 1,873 | $0.00 | - | |
| Jane Grogan - Officer | Tax withholding / forfeiture | Common Stock | 584 | $201.18 | $117K | |
| Jane Grogan - Officer | Option exercise | Restricted Stock Unit | 1,385 | $0.00 | - | |
| Jane Grogan - Officer | Option exercise | Restricted Stock Unit | 1,873 | $0.00 | - | |
| Ginger Gregory - Officer | Tax withholding / forfeiture | Common Stock | 791 | $201.18 | $159K | |
| Ginger Gregory - Officer | Option exercise | Common Stock | 1,802 | $0.00 | - | |
| Ginger Gregory - Officer | Tax withholding / forfeiture | Common Stock | 666 | $201.18 | $134K | |
| Ginger Gregory - Officer | Option exercise | Common Stock | 3,746 | $0.00 | - | |
| Ginger Gregory - Officer | Tax withholding / forfeiture | Common Stock | 1,132 | $201.18 | $228K | |
| Ginger Gregory - Officer | Option exercise | Common Stock | 1,635 | $0.00 | - | |
| Ginger Gregory - Officer | Option exercise | Restricted Stock Unit | 1,635 | $0.00 | - | |
| Ginger Gregory - Officer | Option exercise | Restricted Stock Unit | 1,802 | $0.00 | - | |
| Ginger Gregory - Officer | Option exercise | Restricted Stock Unit | 3,746 | $0.00 | - | |
 Sean Godbout - Officer | Option exercise | Common Stock | 257 | $0.00 | - | |
| Sean Godbout - Officer | Tax withholding / forfeiture | Common Stock | 76 | $201.18 | $15K | |
| Sean Godbout - Officer | Option exercise | Common Stock | 305 | $0.00 | - | |
| Sean Godbout - Officer | Tax withholding / forfeiture | Common Stock | 103 | $201.18 | $21K | |
| Sean Godbout - Officer | Option exercise | Common Stock | 517 | $0.00 | - | |
| Sean Godbout - Officer | Tax withholding / forfeiture | Common Stock | 180 | $201.18 | $36K | |
| Sean Godbout - Officer | Option exercise | Restricted Stock Unit | 257 | $0.00 | - | |
| Sean Godbout - Officer | Option exercise | Restricted Stock Unit | 305 | $0.00 | - | |
| Sean Godbout - Officer | Option exercise | Restricted Stock Unit | 517 | $0.00 | - | |
| Susan H. Alexander - Officer | Option exercise | Common Stock | 2,190 | $0.00 | - | |
| Susan H. Alexander - Officer | Tax withholding / forfeiture | Common Stock | 1,059 | $201.18 | $213K | |
| Susan H. Alexander - Officer | Option exercise | Common Stock | 1,940 | $0.00 | - | |
| Susan H. Alexander - Officer | Tax withholding / forfeiture | Common Stock | 931 | $201.18 | $187K | |
| Susan H. Alexander - Officer | Option exercise | Common Stock | 4,916 | $0.00 | - | |
| Susan H. Alexander - Officer | Tax withholding / forfeiture | Common Stock | 1,514 | $201.18 | $305K | |
| Susan H. Alexander - Officer | Option exercise | Restricted Stock Unit | 2,190 | $0.00 | - | |
| Susan H. Alexander - Officer | Option exercise | Restricted Stock Unit | 1,940 | $0.00 | - | |
| Susan H. Alexander - Officer | Option exercise | Restricted Stock Unit | 4,916 | $0.00 | - | |
| Priya Singhal - Officer | Option exercise | Common Stock | 1,829 | $0.00 | - | |
| Priya Singhal - Officer | Tax withholding / forfeiture | Common Stock | 582 | $179.89 | $105K | |
| Priya Singhal - Officer | Open-market sale | Common Stock | 748 | $179.30 | $134K | |
| Priya Singhal - Officer | Option exercise | Restricted Stock Unit | 1,829 | $0.00 | - | |
| Christopher Viehbacher - Officer | Option exercise | Common Stock | 7,040 | $0.00 | - | |
| Christopher Viehbacher - Officer | Tax withholding / forfeiture | Common Stock | 3,404 | $177.78 | $605K | |
| Christopher Viehbacher - Officer | Option exercise | Restricted Stock Unit | 7,040 | $0.00 | - | |
| Jane Grogan - Officer | Option exercise | Common Stock | 695 | $0.00 | - | |
| Jane Grogan - Officer | Tax withholding / forfeiture | Common Stock | 337 | $154.27 | $52K | |
| Jane Grogan - Officer | Option exercise | Restricted Stock Unit | 695 | $0.00 | - | |
| Sean Godbout - Officer | Option exercise | Common Stock | 26 | $0.00 | - | |
| Sean Godbout - Officer | Tax withholding / forfeiture | Common Stock | 8 | $155.25 | $1K | |
| Sean Godbout - Officer | Option exercise | Restricted Stock Unit | 26 | $0.00 | - | |
| Priya Singhal - Officer | Option exercise | Common Stock | 1,669 | $0.00 | - | |
| Priya Singhal - Officer | Tax withholding / forfeiture | Common Stock | 807 | $132.22 | $107K | |
| Priya Singhal - Officer | Open-market sale | Common Stock | 517 | $133.55 | $69K | |
| Priya Singhal - Officer | Option exercise | Restricted Stock Unit | 1,669 | $0.00 | - | |
| Rachid Izzar - Officer | Open-market sale | Common Stock | 2,223 | $135.00 | $300K | |
| Caroline Dorsa - Director | Grant or award | Common Stock | 3,160 | $0.00 | - | |
| William A. Hawkins - Director | Grant or award | Common Stock | 2,370 | $0.00 | - | |
| Stephen A. Sherwin - Director | Grant or award | Common Stock | 2,370 | $0.00 | - | |
| Caroline Dorsa - Director | Open-market purchase | Common Stock | 1,235 | $122.72 | $152K | |
| Priya Singhal - Officer | Option exercise | Common Stock | 426 | $0.00 | - | |
| Priya Singhal - Officer | Tax withholding / forfeiture | Common Stock | 206 | $157.78 | $33K | |
| Priya Singhal - Officer | Open-market sale | Common Stock | 110 | $157.21 | $17K | |
| Priya Singhal - Officer | Option exercise | Restricted Stock Unit | 426 | $0.00 | - | |
| Robin Kramer - Officer | Option exercise | Common Stock | 351 | $0.00 | - | |
| Robin Kramer - Officer | Tax withholding / forfeiture | Common Stock | 170 | $157.78 | $27K | |
| Robin Kramer - Officer | Option exercise | Restricted Stock Unit | 351 | $0.00 | - | |
| Susan H. Alexander - Officer | Gift | Common Stock | 20,082 | $0.00 | - | |
| Susan H. Alexander - Officer | Gift | Common Stock | 20,082 | $0.00 | - | |
| Jane Grogan - Officer | Option exercise | Common Stock | 695 | $0.00 | - | |
| Jane Grogan - Officer | Tax withholding / forfeiture | Common Stock | 204 | $173.79 | $35K | |
| Jane Grogan - Officer | Option exercise | Restricted Stock Unit | 695 | $0.00 | - |
Item 2.02, 9.01
Item 2.02, 9.01
Item 2.02
Item 5.07
Recent BIIB Form 144 notices of proposed sale
2An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Lloyd Minor | Director | 593 | $119K | View on EDGAR | |
| Lloyd Minor | Director | 593 | $121K |
Stock trades in BIIB disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Maria Elvira SalazarRepublican, FL-27 | Sale (partial) |
BIIB insider trading FAQ
What is the latest insider trade for BIIB?
BIOGEN INC. (BIIB) had 4 insider filings in the last 90 days, with the most recent on 2 November 2026. The full record for BIIB runs to 49 Form 4 filings, the earliest from 4 November 2024. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying BIIB stock?
No insider purchases of BIIB were filed in the last 90 days. 2 purchases are on record for this company.
How many insiders are selling BIIB stock?
2 insider sales of BIIB were filed in the last 90 days, totaling $240K.
Where can I see BIIB SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects BIIB Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Jane Grogan view on EDGAR
- - Sean Godbout view on EDGAR
- - Michael Parini view on EDGAR
- - Lloyd Minor view on EDGAR
- - William A. Hawkins view on EDGAR
- - Stephen A. Sherwin view on EDGAR
- - Eric K. Rowinsky view on EDGAR
- - Jesus B. Mantas view on EDGAR
- - Susan Langer view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where BIIB's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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