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Biogen CAO Sean Godbout Reports Routine RSU Vesting & Tax Withholding

Low SignificanceOctober 5, 2026 at 9:40:56 PM UTC

BIOGEN INC.

$BIIB4CIK: 0000875045

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Filing Summary

# Insider Trade Alert: BIOGEN INC. (BIIB)
**Reporting Owner:** Sean Godbout (Chief Accounting Officer)
**Filing Date:** October 5, 2026

### Transaction Summary
* **Transaction Type:** Tax Withholding (Post-RSU Vesting)
* **Shares Withheld:** 8 shares @ $219.88 ($1,759.04)
* **RSU Settlement:** 27 shares vested
* **New Equity Grant:** 985 Restricted Stock Units (RSUs)
* **Direct Common Stock Owned Following Trades:** 1,458.98 shares
* **Significance:** Low (Routine award grant & tax withholding)

Comprehensive Analysis

Executive Summary

On October 5, 2026, Biogen Inc. ($BIIB) Chief Accounting Officer Sean Godbout filed a Form 4 disclosing regular equity compensation activity:

  1. Annual/Periodic RSU Award (10/01/2026): Received a grant of 985 Restricted Stock Units (RSUs) vesting in three equal annual installments starting October 1, 2027.
  2. RSU Vesting & Conversion (10/02/2026): Converted 27 RSUs granted in 2023 into 27 shares of common stock at $0.00.
  3. Tax Withholding (10/02/2026): Withheld 8 common shares at $219.88 per share ($1,759.04 total value) to satisfy tax withholding obligations triggered by the vesting event.

Following these transactions, Mr. Godbout directly holds 1,458.9845 common shares (which includes 98.3178 shares acquired via Biogen's Employee Stock Purchase Plan).

Market Impact & Significance

  • Trading Significance: Low. The transaction represents standard executive equity administration consisting of an equity grant, scheduled RSU vesting, and non-discretionary share withholding for tax liability.
  • No open-market sales or purchases took place.
Topics:#Biogen#BIIB#SEC#Form4#InsiderTrading#Pharma

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