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$BIIB
$252.26 +$1.57 (0.63%) Close

$BIIB 3 SEC Filings

Filed On Filing
12 Aug 2026 Form 3: Parini Michael, Chief Legal Officer

No securities owned

06 Apr 2026 Form 3: Biogen Inc., See footnotes · Apellis Pharmaceuticals, Inc.

Holds 0 shares of Common Stock

10 Mar 2025 Form 3: Godbout Sean, Chief Accounting Officer

Holds 310 shares of Common Stock

07 Jan 2025 Form 3: Pangalos Menelas N, Director

Holds 0 shares of Common Stock

07 Oct 2024 Form 3: Minor Lloyd, Director

Holds 0 shares of Common Stock

09 Jan 2024 Form 3: Patolawala Monish D, Director

Holds 0 shares of Common Stock

12 Oct 2023 Form 3: Grogan Jane, Head of Research

Holds 0 shares of Common Stock

07 Aug 2023 Form 3: Biogen Inc., See footnotes · REATA PHARMACEUTICALS INC

Holds 0 shares of Class A common stock

28 Jun 2023 Form 3: Langer Susan, Director

Holds 459.1 shares of Common Stock

25 Apr 2023 Form 3: Keeney Adam, Head of Corporate Development

Holds 0 shares of Common Stock

17 Jan 2023 Form 3: Singhal Priya, Head of Development

Holds 1,529.3923 shares of Common Stock

21 Nov 2022 Form 3: Viehbacher Christopher, Director

Holds 7,000 shares of Common Stock

14 Feb 2022 Form 3: Murphy Nicole, Head of Pharm Ops and Tech

Holds 1,225.89 shares of Common Stock

29 Jul 2021 Form 3: Izzar Rachid, Head of Alzheimer's Disease

Holds 899 shares of Common Stock

29 Jun 2021 Form 3: Freire Maria C, Director

Holds 0 shares of Common Stock

29 Jun 2021 Form 3: Jones William D /CA/, Director

Holds 0 shares of Common Stock

11 Jan 2021 Form 3: Biogen Inc., 10% owner and 1 other · Sage Therapeutics, Inc.

Holds 6,241,473 shares of Common Stock

28 Sep 2020 Form 3: Biogen Inc., 10% owner and 1 other · Denali Therapeutics Inc.

Holds 13,310,243 shares of Common Stock

20 Aug 2020 Form 3: Mcdonnell Michael R, EVP, Chief Financial Officer

Holds 0 shares of Common Stock

22 Apr 2020 Form 3: Biogen Inc., 10% owner and 1 other · Sangamo Therapeutics Inc

Holds 24,420,157 shares of Common Stock

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