ALEXANDER SUSAN H 4

What Happened

• Susan H. Alexander, EVP & Chief Legal Officer of Biogen (BIIB), was granted 8,450 restricted stock units (RSUs) on February 13, 2026. The Form 4 reports the acquisition as a derivative award at $0.00 per unit (typical for RSU grants; no cash paid).
• This is a compensation grant (award), not a market purchase or sale — RSUs convert to shares only as they vest.

Key Details

• Transaction date: 2026-02-13; Form 4 filed: 2026-02-17.
• Transaction type/code: Award/Grant (A); 8,450 RSUs reported at $0.00.
• Vesting: RSUs vest in three equal yearly installments beginning on the first anniversary of the grant (first vesting on Feb 13, 2027).
• Shares owned after transaction: Not disclosed in this filing.
• Timeliness: Filed Feb 17 — appears timely (within the Form 4 two-business-day window when accounting for weekend and the Feb 16 holiday).

Context

• RSU grants are a routine form of executive compensation and do not represent an immediate purchase of shares. They become actual shares as each tranche vests, at which point tax and withholding rules may apply.
• This filing documents a compensation award and should be viewed as part of Alexander’s pay package rather than a direct buy or sell signal.