BIIB
BIOGEN INC.
Latest Form 4:Sale$121KbyMinor Lloyd (Director) · filed Aug 5, 2026
BIOGEN INC. (BIIB) has 27 SEC Form 4 filings (79 transaction rows) in the rolling window, disclosed by 3 distinct insiders. Most recent filing: Aug 5, 2026.
Inside the rolling window, 3 insiders at BIOGEN INC. reported 1 open-market purchase totaling $585 and 4 open-market sales totaling $905K. Insiders have net sold $771K over the trailing 6 months. The most recent open-market filing is a sale of 593 shares by Director Minor Lloyd, dated Aug 3, 2026, worth $121K.
- Industry:Drug Manufacturers - General
- CEO:Christopher A. Viehbacher
- Employees:7,500
- HQ:Cambridge, MA, US
- IPO:1991-09-17
Insider Buying
$585
reported purchases (SEC code P)
Insider Selling
$905K
reported sales (SEC code S)
Unique Insiders
3
in the rolling window
Market Cap
$31.9B
latest known value
| Source | ||||||
|---|---|---|---|---|---|---|
Minor LloydFirst filing | Director | Sale | 593 | $121K | Aug 5 | SEC ↗ |
Minor LloydFirst filing | Director | Sale | 593 | $119K | Aug 5 | SEC ↗ |
Murphy NicoleFirst filing | Head of Pharm Ops and Tech | Purchase | 3 | $585 | Feb 17 | SEC ↗ |
| Head of Development | Sale | 2,660 | $532K | Feb 10 | SEC ↗ | |
Singhal PriyaFirst filing | Head of Development | Sale | 748 | $134K | Feb 3 | SEC ↗ |
Congress trading BIIB
See timeline →- RRep. Kevin HernSale$1,001 - $15,0002026-08-18
- RRep. Maria Elvira SalazarSale$15,001 - $50,0002026-06-02
- DRep. Gilbert CisnerosPurchase$1,001 - $15,0002026-06-05
- RRep. Maria Elvira SalazarPurchase$50,001 - $100,0002026-05-11
- RRep. Maria Elvira SalazarPurchase$1,001 - $15,0002026-05-11
- RRep. Maria Elvira SalazarPurchase$1,001 - $15,0002026-05-12
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does BIIB have?
BIOGEN INC. (BIIB) has 27 SEC Form 4 filings (79 transaction rows) in the rolling 365-day window, disclosed by 3 distinct insiders. Most recent filing: Aug 5, 2026.
When was the most recent SEC Form 4 filing for BIIB?
The most recent Form 4 filing for BIIB on Tracefour is dated Aug 5, 2026.
What is the net insider flow at BIIB over the last 6 months?
Over the trailing 180 days, insiders at BIIB have net sold $771K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at BIIB in the current window?
Inside the rolling window, insiders at BIIB bought $585 and sold $905K based on SEC Form 4 filings.
Can I get alerts for BIIB insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at BIOGEN INC. (BIIB). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
BIOGEN INC. is in the Healthcare sector.