Form 4 filings across 1 company. Net figures count open-market buys and sales only. EDGAR profile ↗
Lifetime net: $0
Reported holding is the most recent post-transaction share count on a Table I row.
How quickly this filer reports. Section 16 allows two business days from the transaction.
All 3 filings we hold were filed within the two-business-day deadline.
Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings
The 10 most recent Form 4 transactions.
| Feb 6 | BIIB | Biogen INC. | MEXER◆ | 1,385 | — | — | — | Open the original filing on SEC.gov |
| Feb 6 | BIIB | Biogen INC. | FTAX | 584 | $201.18 | $117.5K | -12.6% | Open the original filing on SEC.gov |
| Feb 6 | BIIB | Biogen INC. | MEXER | 1,873 | — | — | +67.6% | Open the original filing on SEC.gov |
| Feb 6 | BIIB | Biogen INC. | FTAX | 407 | $201.18 | $81.9K | -12.8% | Open the original filing on SEC.gov |
| Feb 6 | BIIB | Biogen INC. | MEXER | 1,385 | — | — | +77.3% | Open the original filing on SEC.gov |
| Oct 31, 2025 | BIIB | Biogen INC. | MEXER◆ | 695 | — | — | — | Open the original filing on SEC.gov |
| Oct 31, 2025 | BIIB | Biogen INC. | FTAX | 337 | $154.27 | $52K | -15.8% | Open the original filing on SEC.gov |
| Oct 31, 2025 | BIIB | Biogen INC. | MEXER | 695 | — | — | +48.5% | Open the original filing on SEC.gov |