Welcome to our dedicated page for Biogen SEC filings (Ticker: BIIB), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Biogen Inc. filings document the regulatory record of a Nasdaq-listed biopharmaceutical company with commercial products and development programs in neurology, rare disease and immune-mediated conditions. Forms 8-K cover operating and financial results, product-revenue commentary, acquired in-process research and development, upfront and milestone expenses, collaboration and license-agreement costs, material agreements, capital-structure disclosures and clinical or regulatory updates.
Biogen’s proxy and governance filings address board leadership, director matters, executive compensation and annual meeting items. The filing record also documents the company’s common stock registered on The Nasdaq Global Select Market, officer and director transitions, risk-related forward-looking disclosures and transaction communications tied to strategic business development activity.
SEC Form 4 filed on 06/18/2025 reveals that Biogen Inc. (BIIB) director Susan K. Langer acquired 2,370 shares of common stock on 06/17/2025. The transaction is coded “A,” indicating an acquisition, and carries a stated price of $0 per share, characteristic of a director equity grant rather than an open-market purchase. Following the award, Langer’s direct beneficial ownership rises to roughly 5,129 shares. No derivative security activity or additional transactions were reported. The filing was signed by attorney-in-fact Wendell Taylor on behalf of the director. No other material changes or footnotes accompany the filing.
Biogen Inc. (BIIB) Director Caroline Dorsa reported acquiring 3,160 shares of Common Stock on June 17, 2025. The shares were awarded at a price of $0, suggesting this was a stock grant as part of director compensation.
Following this transaction, Dorsa now beneficially owns a total of 31,002 shares directly. The filing indicates this was a straightforward acquisition with no derivative securities involved in the transaction.
The Form 4 was signed by Wendell Taylor as attorney-in-fact for Caroline Dorsa on June 18, 2025, within the required reporting timeline. This transaction appears to be part of regular director compensation practices rather than open market trading activity.