BIOGEN INC. (BIIB) — Insider Trading

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This analysis covers the filing from 2026-05-05. New 10-K, 10-Q and 8-K filings are analyzed the moment they are released — exclusively in the app.

Earlier Insider Trading filings

Filed: 2026-04-03
  • Insider Sean Godbout, the Chief Accounting Officer, exercised 181 restricted stock units and sold 54 shares of Biogen stock on April 1, 2026.
  • Godbout's net ownership decreased from 1,395.6667 shares to 1,341.6667 shares as a result of this transaction.
  • The restricted stock units vested in three equal yearly installments beginning on the first anniversary of the grant date of April 1, 2025.
Filed: 2026-02-10
  • Nicole Murphy, the Head of Pharmaceutical Operations and Technology at Biogen, has exercised 8,725 restricted stock units and sold 3,339 shares on February 6, 2026.
  • The transactions indicate that Murphy is partially liquidating her equity holdings in Biogen, which could signal a change in her confidence or outlook on the company's prospects.
  • The insider selling activity, combined with the vesting and exercise of stock-based compensation, is worth monitoring as it may provide insights into the company's performance and management's perspective.
Filed: 2026-02-10
  • The reporting person, Christopher A. Viehbacher, acquired 9,008 shares of common stock through the vesting of restricted stock units, and subsequently sold 4,356 shares to cover tax withholding obligations.
  • Viehbacher also acquired an additional 15,453 shares through the vesting of restricted stock units, and sold 6,624 shares to cover tax withholding.
  • After these transactions, Viehbacher's direct beneficial ownership of Biogen's common stock increased from 25,451 shares to 29,924 shares.
Filed: 2026-02-10
  • Priya Singhal, the Head of Development at Biogen, exercised restricted stock units and sold a portion of the acquired shares, which suggests potential insider confidence in the company's future prospects.
  • The timing of Singhal's transactions, occurring in early February 2026, may provide insights into Biogen's near-term outlook and potential business developments.
  • The relatively large amount of shares involved in this transaction, totaling over 6,900 shares, indicates a significant change in Singhal's beneficial ownership position in the company.
Filed: 2026-02-10
  • Robin Kramer, the Chief Financial Officer of Biogen, has acquired 5,003 shares of the company's common stock through the vesting of restricted stock units on February 6, 2026.
  • Kramer has also sold 1,543 shares to cover tax withholding obligations, leaving him with a net increase of 3,460 shares in his direct ownership of Biogen stock.
  • The insider transactions suggest Kramer's continued confidence in Biogen's prospects, as he retains a significant stake of over 11,400 shares in the company.
Filed: 2026-02-10
  • Adam Keeney, the Head of Corporate Development at Biogen, exercised 5,080 restricted stock units and sold 1,583 shares to cover tax withholding obligations.
  • Keeney's net ownership increased from 4,186 shares to 5,881 shares, indicating he is holding onto a significant portion of his equity compensation.
  • The timing and magnitude of these transactions suggest Keeney remains confident in Biogen's long-term prospects and is aligning his personal financial interests with those of the company and its shareholders.
Filed: 2026-02-10
  • Rachid Izzar, the Head of Global Product Strategy at Biogen, has exercised 6,889 stock options and restricted stock units, suggesting confidence in the company's future.
  • Izzar has sold 2,038 shares to cover tax withholding obligations, indicating he is retaining a significant portion of the shares received.
  • The vesting of the stock options and restricted stock units is staggered over multiple years, providing long-term incentives and alignment with shareholders.
Filed: 2026-02-10
  • Insider Dr. Jane Grogan, Head of Research at Biogen, has exercised restricted stock units (RSUs) to acquire 3,258 shares of Biogen common stock, indicating confidence in the company's future.
  • Dr. Grogan has also sold a portion of her shares, likely for tax purposes, retaining a significant stake of 4,058 shares in the company.
  • The vesting schedule of the RSUs suggests Biogen is incentivizing its research leadership through long-term equity compensation, aligning their interests with shareholders.
Filed: 2026-02-10
  • Gregory Ginger, an EVP at Biogen, exercised 7,183 stock options and restricted stock units in a series of transactions on February 6, 2026.
  • The total number of Biogen shares beneficially owned by Ginger increased from 19,399.7673 to 23,490.7673 as a result of these transactions.
  • Ginger sold a portion of the acquired shares to cover tax withholding obligations, indicating some liquidity needs, but overall maintained a significant equity stake in the company.
Filed: 2026-02-10
  • The reporting person, Sean Godbout, is the Chief Accounting Officer of Biogen Inc. and has acquired a significant number of shares through the vesting of restricted stock units.
  • Godbout has disposed of a portion of the shares acquired through the vesting, likely for tax purposes, but still maintains a substantial direct ownership position in the company.
  • The restricted stock unit grants appear to be on a regular annual schedule, providing Godbout with long-term incentive compensation aligned with shareholder interests.
Filed: 2026-02-10
  • The reporting person, Susan H. Alexander, who is the EVP and Chief Legal Officer of Biogen Inc. (BIIB), acquired a total of 9,046 shares of BIIB common stock through the vesting of restricted stock units (RSUs) on 02/06/2026.
  • The reporting person disposed of 3,504 shares of BIIB common stock to cover tax withholding obligations related to the vesting of the RSUs, leaving her with a total of 41,807 direct shares and 20,082 indirect shares held in a trust.
  • The insider transactions suggest the reporting person's continued commitment to and confidence in Biogen's long-term growth and performance, as evidenced by the vesting and retention of a significant portion of the awarded RSUs.

Other reports for BIOGEN INC.

Important Information

AI-generated analysis is for informational purposes only. Always read original SEC filings and consult with qualified professionals before making investment decisions.