Updated Jul 16, 2026 · Last SEC filing 2026-06-11
BIOGEN INC. (BIIB) has filed 10 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-11. 5 Form 8-K material event filings were reported by BIIB in the last 90 days. InsiderAlpha tracks every BIIB SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Biological Products, (No Diagnostic Substances) (SIC 2836) |
|---|---|
| SEC CIK | 0000875045 |
| Form 4 filings (90d) | 10 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Latest Form 4 filing | 2026-06-11 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Minor Lloyd | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Rowinsky Eric K | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Patolawala Monish D | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Freire Maria C | Director | A — Grant or award | 2.0K | $0.00 | — | SEC | |
| SHERWIN STEPHEN A | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| HAWKINS WILLIAM A | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Pangalos Menelas N | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Mantas Jesus B | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Pangalos Menelas N | Director | M — Option exercise | 2.4K | $0.00 | — | SEC | |
| LANGER SUSAN | Director | A — Grant or award | 1.5K | $0.00 | — | SEC | |
| Keeney Adam | Head of Corporate Development | F — Tax withholding / forfeiture | 455 | $187.06 | $85K | SEC | |
| Keeney Adam | Head of Corporate Development | M — Option exercise | 939 | $0.00 | — | SEC | |
| Godbout Sean | Chief Accounting Officer | M — Option exercise | 181 | $0.00 | — | SEC | |
| Godbout Sean | Chief Accounting Officer | F — Tax withholding / forfeiture | 54 | $183.78 | $10K | SEC | |
| Murphy Nicole | Head of Pharm Ops and Tech | P — Open-market purchase | 3 | $195.03 | $585 | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for BIOGEN INC. (BIIB). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Keeney Adam | 3 | $85K |
| Pangalos Menelas N | 3 | — |
| Patolawala Monish D | 1 | — |
| HAWKINS WILLIAM A | 1 | — |
| Freire Maria C | 1 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in BIIB insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
Open the live BIIB dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.