CIK 0000875045
BIIB BIOGEN INC.
Insider trading from SEC Form 4. Last filing Dec 9, 2024.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
4
with a Form 4 at this company
Signals
Open-market buys and sells at BIOGEN INC., scored.
| Score | Side | Insider | Value | Shares | Holdings change | Price context | Filed |
|---|---|---|---|---|---|---|---|
| 0Weak | sell10b5-1 | Singhal Priya Head of Development | $17k | 110 | -2% | - |
Congressional trades
12 trades in BIIB disclosed by members of Congress under the STOCK Act. All congressional trades.
| Member | Type | Asset | Amount | Traded | Filed |
|---|---|---|---|---|---|
| Maria Elvira Salazar House · R-FL | Partial sale | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Sep 24, 2026 | 13 days after the trade |
| Kevin Hern House · R-OK | Sale | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Aug 18, 2026 | 14 days after the trade |
| Alan Armstrong Senate · R-OK | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Mar 27, 2026 | 116 days after the trade |
| Maria Elvira Salazar House · R-FL | Sale | BIIB Biogen Inc. - Common Stock | $15k to $50k | Jun 2, 2026 | 35 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Jun 5, 2026 | 27 days after the trade |
| Maria Elvira Salazar House · R-FL | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | May 11, 2026 | 28 days after the trade |
| Maria Elvira Salazar House · R-FL | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | May 12, 2026 | 27 days after the trade |
| Maria Elvira Salazar House · R-FL | Purchase | BIIB Biogen Inc. - Common Stock | $50k to $100k | May 11, 2026 | 28 days after the trade |
| Gilbert Ray Cisneros, Jr. House · D-CA | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Jan 30, 2026 | 14 days after the trade |
| Robert P. Bresnahan, Jr. House · R-PA | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | May 15, 2025 | 25 days after the trade |
| Robert P. Bresnahan, Jr. House · R-PA | Sale | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Apr 8, 2025 | 30 days after the trade |
| Robert P. Bresnahan, Jr. House · R-PA | Purchase | BIIB Biogen Inc. - Common Stock | $1,001 to $15k | Feb 25, 2025 | 30 days after the trade |
Transactions
The last 12 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 6, 2024 | Kramer Robin Chief Accounting Officer | MOption exercise Common Stock | +351 | $0.00 | $0 | 6,578 | Dec 9, 2024 |
| Dec 6, 2024 | Singhal Priya Head of Development | MOption exercise Common Stock10b5-1 | +426 | $0.00 | $0 | 5,742 | Dec 9, 2024 |
| Dec 6, 2024 | Kramer Robin Chief Accounting Officer | FTax withholding Common Stock | -170 | $157.78 | $27k | 6,408 | Dec 9, 2024 |
| Dec 6, 2024 | Singhal Priya Head of Development | FTax withholding Common Stock10b5-1 | -206 | $157.78 | $33k | 5,536 | Dec 9, 2024 |
| Dec 9, 2024 | Singhal Priya Head of Development | SOpen-market sale Common Stock10b5-1 | -110 | $157.21 | $17k | 5,426 | Dec 9, 2024 |
| Dec 6, 2024 | Kramer Robin Chief Accounting Officer | MOption exercise Restricted Stock Unitderivative | -351 | $0.00 | $0 | 0 | Dec 9, 2024 |
| Dec 6, 2024 | Singhal Priya Head of Development | MOption exercise Restricted Stock Unitderivative10b5-1 | -426 | $0.00 | $0 | 0 | Dec 9, 2024 |
| Nov 5, 2024 | ALEXANDER SUSAN H EVP Chief Legal Officer | GGift Common Stock | -20,082 | $0.00 | $0 | 31,601 | Nov 7, 2024 |
| Nov 5, 2024 | ALEXANDER SUSAN H EVP Chief Legal Officer | GGift Common Stockindirect: Susan H. Alexander 2021 Irrevocable Trust | +20,082 | $0.00 | $0 | 20,082 | Nov 7, 2024 |
| Nov 1, 2024 | Grogan Jane Head of Research | MOption exercise Common Stock | +695 | $0.00 | $0 | 695 | Nov 4, 2024 |
| Nov 1, 2024 | Grogan Jane Head of Research | FTax withholding Common Stock | -204 | $173.79 | $35k | 491 | Nov 4, 2024 |
| Nov 1, 2024 | Grogan Jane Head of Research | MOption exercise Restricted Stock Unitderivative | -695 | $0.00 | $0 | 1,390 | Nov 4, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- ALEXANDER SUSAN HEVP Chief Legal Officer
- Grogan JaneHead of Research
- Kramer RobinChief Accounting Officer
- Singhal PriyaHead of Development
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.