secwatch / observer
BIIB BIOGEN INC.
CIK 0000875045 50 ready 8-Ks latest July 29, 2026, 6:10 AM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 50
Latest filing July 29, 2026, 6:10 AM ET
Top materiality 0.95
Event mix earnings ×19 · leadership ×10 · other_material ×7
Sentiment 16 pos · 8 neg · 26 neu
Latest earnings ▼ miss 2026-Q1
Executive change recent →

Recent 8-K filings for BIIB

Executive changes

Role change

Robin Kramer

Chief Financial Officer
BIIB · BIOGEN INC.
Effective
2025-03-01
Successor
Michael McDonnell
Filed
January 15, 2025, 6:59 PM ET
As previously announced, Ms. Kramer has been appointed the Company’s Chief Financial Officer, effective upon the retirement of Michael McDonnell, the Company’s current Chief Financial Officer.
Appointed

Sean Godbout

Chief Accounting Officer
BIIB · BIOGEN INC.
Effective
2025-03-01
Successor
Robin Kramer
Filed
January 15, 2025, 6:59 PM ET
On January 13, 2025, Biogen Inc. (the “Company”) appointed Sean Godbout as Vice President, Chief Accounting Officer & Global Corporate Controller and designated Mr. Godbout as the Company’s principal accounting officer, in each case effective as of March 1, 2025.
Departed

Michael McDonnell

Chief Financial Officer
BIIB · BIOGEN INC.
Effective
2025-03-01
Successor
Robin Kramer
Filed
January 15, 2025, 6:59 PM ET
Mr. McDonnell will retire on March 1, 2025.
Departed

Michael McDonnell

Chief Financial Officer
BIIB · BIOGEN INC.
Effective
2025-02-28
Successor
Robin Kramer
Filed
October 30, 2024, 7:59 PM ET
On October 28, 2024, Michael McDonnell, Chief Financial Officer of Biogen Inc. (the “Company”) notified the Company that he will retire from the Company effective February 28, 2025.
Appointed

Robin Kramer

Chief Financial Officer
BIIB · BIOGEN INC.
Effective
2025-02-28
Filed
October 30, 2024, 7:59 PM ET
Robin Kramer, the Company’s Chief Accounting Officer and Head of Global Business Services and Treasury has been appointed Chief Financial Officer effective upon Mr. McDonnell’s retirement.
Appointed

Sir Menelas (Mene) Pangalos

director
BIIB · BIOGEN INC.
Effective
2025-01-01
Filed
September 12, 2024, 7:59 PM ET
On September 11, 2024, the Board of Directors (the “Board”) of Biogen Inc. (the “Company”) increased the size of the Board and elected Lloyd B. Minor, M.D. and Sir Menelas (Mene) Pangalos, Ph.D. as directors, effective October 1, 2024 and January 1, 2025, respectively, with each director’s term expiring at the Company’s 2025 Annual Meeting of Stockholders.
Appointed

Lloyd B. Minor

director
BIIB · BIOGEN INC.
Effective
2024-10-01
Filed
September 12, 2024, 7:59 PM ET
On September 11, 2024, the Board of Directors (the “Board”) of Biogen Inc. (the “Company”) increased the size of the Board and elected Lloyd B. Minor, M.D. and Sir Menelas (Mene) Pangalos, Ph.D. as directors, effective October 1, 2024 and January 1, 2025, respectively, with each director’s term expiring at the Company’s 2025 Annual Meeting of Stockholders.
Appointed

Monish Patolawala

Director
BIIB · BIOGEN INC.
Effective
2024-01-01
Filed
November 8, 2023, 6:59 PM ET
On November 6, 2023, the Board of Directors (the “Board”) of Biogen Inc. (the “Company”) elected Monish Patolawala as a director (term to expire at the 2024 Annual Meeting) to fill a vacancy, effective January 1, 2024.
Departed

Michel Vounatsos

CEO
BIIB · BIOGEN INC.
Successor
Christopher A. Viehbacher
Filed
November 10, 2022, 6:59 PM ET
Michel Vounatsos will step down as Biogen’s CEO and will resign from the Board.
Appointed

Christopher A. Viehbacher

President and CEO
BIIB · BIOGEN INC.
Effective
2022-11-14
Filed
November 10, 2022, 6:59 PM ET
appointed Christopher A. Viehbacher, age 62, to serve as President and CEO of Biogen, beginning November 14, 2022.
Appointed

Christopher A. Viehbacher

Director
BIIB · BIOGEN INC.
Effective
2022-11-14
Filed
November 10, 2022, 6:59 PM ET
Mr. Viehbacher will succeed Michel Vounatsos as director of Biogen effective November 14, 2022
Departed

Chirfi Guindo

Executive Vice President for Global Product Strategy and Commercialization
BIIB · BIOGEN INC.
Effective
2022-06-30
Filed
June 21, 2022, 7:59 PM ET
On June 21, 2022, Chirfi Guindo, Executive Vice President for Global Product Strategy and Commercialization announced that he has accepted a new role outside of Biogen, Inc. (the “Company”).

Earnings & guidance

2026-Q1 EPS reported $2.15 vs consensus $2.83 ▼ miss (-23.9%) filing →

Materiality & sentiment trend

Max materiality 0.95 · Median 0.70 · Most common event earnings

16 positive 8 negative 26 neutral

source · BIIB on sec.gov