Biogen Inc. (BIIB) Insider Trading
Directors, officers and holders of more than 10% of BIIB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 249 transactions on file: 1 with code P, 3 with code S and 46 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | Grogan Jane | Head of Research | M Exercise | 695 | Not measured | Not measured |
| Oct 30, 2026 | Grogan Jane | Head of Research | F Tax Payment | 345 | $253.62 | $87,499 |
| Oct 30, 2026 | Grogan Jane | Head of Research | M Exercise | 695 | Not measured | Not measured |
| Oct 2, 2026 | Godbout Sean | Chief Accounting Officer | M Exercise | 27 | Not measured | Not measured |
| Oct 2, 2026 | Godbout Sean | Chief Accounting Officer | F Tax Payment | 8 | $219.88 | $1,759 |
| Oct 2, 2026 | Godbout Sean | Chief Accounting Officer | M Exercise | 27 | Not measured | Not measured |
| Oct 1, 2026 | Godbout Sean | Chief Accounting Officer | A Award | 985 | Not measured | Not measured |
| Sep 1, 2026 | Parini Michael | Chief Legal Officer | A Award | 7,405 | Not measured | Not measured |
| Aug 4, 2026 | Minor Lloyd | Director | S Sale | 593 | $200.96 | $119,169 |
| Aug 3, 2026 | Minor Lloyd | Director | S Sale | 593 | $203.34 | $120,581 |
| Jun 9, 2026 | Pangalos Menelas N | Director | M Exercise | 2,370 | Not measured | Not measured |
| Jun 9, 2026 | Pangalos Menelas N | Director | M Exercise | 2,370 | Not measured | Not measured |
| Jun 9, 2026 | Pangalos Menelas N | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | HAWKINS WILLIAM A | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | Mantas Jesus B | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | Patolawala Monish D | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | Rowinsky Eric K | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | SHERWIN STEPHEN A | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | LANGER SUSAN | Director | A Award | 1,505 | Not measured | Not measured |
| Jun 9, 2026 | Freire Maria C | Director | A Award | 2,005 | Not measured | Not measured |
| Jun 9, 2026 | Minor Lloyd | Director | A Award | 1,505 | Not measured | Not measured |
| May 1, 2026 | Keeney Adam | Head of Corporate Development | M Exercise | 939 | Not measured | Not measured |
| May 1, 2026 | Keeney Adam | Head of Corporate Development | M Exercise | 939 | Not measured | Not measured |
| May 1, 2026 | Keeney Adam | Head of Corporate Development | F Tax Payment | 455 | $187.06 | $85,112 |
| Apr 1, 2026 | Godbout Sean | Chief Accounting Officer | M Exercise | 181 | Not measured | Not measured |
| Apr 1, 2026 | Godbout Sean | Chief Accounting Officer | F Tax Payment | 54 | $183.78 | $9,924 |
| Apr 1, 2026 | Godbout Sean | Chief Accounting Officer | M Exercise | 181 | Not measured | Not measured |
| Feb 13, 2026 | Murphy Nicole | Head of Pharm Ops and Tech | A Award | 10,560 | Not measured | Not measured |
| Feb 13, 2026 | Gregory Ginger | EVP, Human Resources | A Award | 8,025 | Not measured | Not measured |
| Feb 13, 2026 | Singhal Priya | Head of Development | A Award | 10,560 | Not measured | Not measured |
| Feb 13, 2026 | ALEXANDER SUSAN H | EVP Chief Legal Officer | A Award | 8,450 | Not measured | Not measured |
| Feb 13, 2026 | Godbout Sean | Chief Accounting Officer | A Award | 1,800 | Not measured | Not measured |
| Feb 13, 2026 | Kramer Robin | Chief Financial Officer | A Award | 8,450 | Not measured | Not measured |
| Feb 13, 2026 | Viehbacher Christopher | President and CEO | A Award | 38,015 | Not measured | Not measured |
| Feb 13, 2026 | Keeney Adam | Head of Corporate Development | A Award | 8,025 | Not measured | Not measured |
| Feb 13, 2026 | Izzar Rachid | Head of Global Product Strat. | A Award | 7,390 | Not measured | Not measured |
| Feb 13, 2026 | Grogan Jane | Head of Research | A Award | 8,450 | Not measured | Not measured |
| Feb 12, 2026 | Murphy Nicole | Head of Pharm Ops and Tech | P Purchase | 3 | $195.03 | $585 |
| Feb 9, 2026 | Singhal Priya | Head of Development | S Sale | 2,660 | $199.83 | $531,548 |
| Feb 6, 2026 | Kramer Robin | Chief Financial Officer | F Tax Payment | 1,063 | $201.18 | $213,854 |
| Feb 6, 2026 | Gregory Ginger | EVP, Human Resources | F Tax Payment | 791 | $201.18 | $159,133 |
| Feb 6, 2026 | Izzar Rachid | Head of Global Product Strat. | M Exercise | 2,044 | Not measured | Not measured |
| Feb 6, 2026 | Kramer Robin | Chief Financial Officer | M Exercise | 3,511 | Not measured | Not measured |
| Feb 6, 2026 | Gregory Ginger | EVP, Human Resources | M Exercise | 1,635 | Not measured | Not measured |
| Feb 6, 2026 | Izzar Rachid | Head of Global Product Strat. | F Tax Payment | 805 | $201.18 | $161,950 |
| Feb 6, 2026 | Izzar Rachid | Head of Global Product Strat. | F Tax Payment | 775 | $201.18 | $155,915 |
| Feb 6, 2026 | Kramer Robin | Chief Financial Officer | F Tax Payment | 273 | $201.18 | $54,922 |
| Feb 6, 2026 | Keeney Adam | Head of Corporate Development | F Tax Payment | 994 | $201.18 | $199,973 |
| Feb 6, 2026 | Kramer Robin | Chief Financial Officer | M Exercise | 703 | Not measured | Not measured |
| Feb 6, 2026 | Kramer Robin | Chief Financial Officer | F Tax Payment | 207 | $201.18 | $41,644 |
The full Form 4 history is on the BIIB company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.