BIIB

SEC source: 0001127602-24-004304 · form4.xml · derivative · entry 4

Murphy Nicole · CIK 0001910644 · Head of Pharm Ops and Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,204

Underlying: Common Stock · 2,101 shares

Expires 2026-02-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments commencing one year after the grant date of 02/8/2023.

SEC source: 0001127602-24-004304 · form4.xml · nonDerivative · entry 2

Murphy Nicole · CIK 0001910644 · Head of Pharm Ops and Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,256.9895

SEC source: 0001127602-24-004304 · form4.xml · nonDerivative · entry 1

Murphy Nicole · CIK 0001910644 · Head of Pharm Ops and Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,894.9895

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-24-004311 · form4.xml · derivative · entry 3

ALEXANDER SUSAN H · CIK 0001263839 · EVP Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,820

Underlying: Common Stock · 5,820 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004310 · form4.xml · derivative · entry 3

Gregory Ginger · CIK 0001545716 · EVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,405

Underlying: Common Stock · 5,405 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004309 · form4.xml · derivative · entry 1

Grogan Jane · CIK 0001995547 · Head of Research

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,155

Underlying: Common Stock · 4,155 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004308 · form4.xml · derivative · entry 3

Izzar Rachid · CIK 0001875506 · Head of Global Product Strat.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,405

Underlying: Common Stock · 5,405 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004307 · form4.xml · derivative · entry 1

Keeney Adam · CIK 0001973607 · Head of Corporate Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,405

Underlying: Common Stock · 5,405 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004306 · form4.xml · derivative · entry 3

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,110

Underlying: Common Stock · 2,110 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004305 · form4.xml · derivative · entry 3

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,650

Underlying: Common Stock · 6,650 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004304 · form4.xml · derivative · entry 3

Murphy Nicole · CIK 0001910644 · Head of Pharm Ops and Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,820

Underlying: Common Stock · 5,820 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004303 · form4.xml · derivative · entry 1

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,650

Underlying: Common Stock · 6,650 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-004302 · form4.xml · derivative · entry 1

Viehbacher Christopher · CIK 0001774478 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,025

Underlying: Common Stock · 27,025 shares

Expires 2027-02-07

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments, commencing one year after the grant date of 02/07/2024.

SEC source: 0001127602-24-003440 · form4.xml · nonDerivative · entry 3

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,097.0915

SEC source: 0001127602-24-003440 · form4.xml · derivative · entry 4

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,657

Underlying: Common Stock · 1,828 shares

Expires 2026-02-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: This award was granted to the reporting person on February 1, 2023 and will vest in three equal installments on each anniversary of the grant date.

SEC source: 0001127602-24-003440 · form4.xml · nonDerivative · entry 2

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,731.0915

SEC source: 0001127602-24-003440 · form4.xml · nonDerivative · entry 1

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,292.0915

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-24-002813 · form4.xml · derivative · entry 1

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 819

Underlying: Common Stock · 819 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-24-002812 · form4.xml · derivative · entry 1

Murphy Nicole · CIK 0001910644 · Head of Pharm Ops and Tech

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 856

Underlying: Common Stock · 856 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-24-002810 · form4.xml · derivative · entry 1

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,568

Underlying: Common Stock · 4,568 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-24-002808 · form4.xml · derivative · entry 1

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 914

Underlying: Common Stock · 914 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-24-002807 · form4.xml · derivative · entry 1

Izzar Rachid · CIK 0001875506 · Head of Global Product Strat.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,370

Underlying: Common Stock · 1,370 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-24-002805 · form4.xml · derivative · entry 1

Gregory Ginger · CIK 0001545716 · EVP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,197

Underlying: Common Stock · 3,197 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-24-002799 · form4.xml · derivative · entry 1

ALEXANDER SUSAN H · CIK 0001263839 · EVP Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,423

Underlying: Common Stock · 3,423 shares

Expires 2024-02-18

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 18, 2021. The PSUs will vest on February 18, 2024.

SEC source: 0001127602-23-029445 · form4.xml · nonDerivative · entry 3

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,464.0915

SEC source: 0001127602-23-029445 · form4.xml · derivative · entry 4

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 426

Underlying: Common Stock · 426 shares

Expires 2024-12-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: This award was granted to the reporting person on December 8, 2021 and will vest in three equal installments on each anniversary of the grant date.

SEC source: 0001127602-23-029445 · form4.xml · nonDerivative · entry 2

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,574.0915

SEC source: 0001127602-23-029445 · form4.xml · nonDerivative · entry 1

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,780.0915

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-23-029441 · form4.xml · derivative · entry 3

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 351

Underlying: Common Stock · 351 shares

Expires 2024-12-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The restricted stock units vest in three (3) equal annual installments commencing on the first anniversary of the grant date of 12/8/2021.

SEC source: 0001127602-23-029441 · form4.xml · nonDerivative · entry 2

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,154.7483

SEC source: 0001127602-23-029441 · form4.xml · nonDerivative · entry 1

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,324.7483

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-23-026781 · form4.xml · derivative · entry 2

Grogan Jane · CIK 0001995547 · Head of Research

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,085

Underlying: Common Stock · 2,085 shares

Expires 2026-11-01

F1 · derivative.exercise_date: The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of November 1, 2023.

SEC source: 0001127602-23-023824 · form4.xml · nonDerivative · entry 3

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,354.0915

SEC source: 0001127602-23-023825 · form4.xml · derivative · entry 7

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,763 shares

Expires 2023-09-01

F3 · kind: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F2 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the average closing stock price for the 30 calendar days following and including the grant date and 30 calendar days prior to and including such vesting date]).

SEC source: 0001127602-23-023825 · form4.xml · derivative · entry 6

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,763

Underlying: Common Stock · 2,603 shares

Expires 2023-09-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the average closing stock price for the 30 calendar days following and including the grant date and 30 calendar days prior to and including such vesting date]).

SEC source: 0001127602-23-023825 · form4.xml · derivative · entry 5

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,682 shares

Expires 2023-09-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The restricted stock units vested in three (3) equal annual installments commencing one year after the grant date of 09/01/2020.

SEC source: 0001127602-23-023825 · form4.xml · nonDerivative · entry 4

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,728

SEC source: 0001127602-23-023825 · form4.xml · nonDerivative · entry 3

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,060

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-23-023825 · form4.xml · nonDerivative · entry 2

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,457

SEC source: 0001127602-23-023825 · form4.xml · nonDerivative · entry 1

MCDONNELL MICHAEL R · CIK 0001121897 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,829

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-23-023824 · form4.xml · derivative · entry 4

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,337

Underlying: Common Stock · 1,668 shares

Expires 2025-09-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: This award was granted to the reporting person on September 1, 2022 and will vest in three equal installments on each anniversary of the grant date.

SEC source: 0001127602-23-023824 · form4.xml · nonDerivative · entry 2

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,785.0915

SEC source: 0001127602-23-023824 · form4.xml · nonDerivative · entry 1

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,592.0915

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-23-020235 · form4.xml · nonDerivative · entry 3

Singhal Priya · CIK 0001769608 · Head of Development

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,924.0915

SEC source: 0001127602-23-020238 · form4.xml · derivative · entry 3

Izzar Rachid · CIK 0001875506 · Head of Global Product Strat.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 504 shares

Expires 2024-07-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: This award was granted to the reporting person on July 1, 2020, and vested in three equal installments on each anniversary of the grant date.

SEC source: 0001127602-23-020238 · form4.xml · nonDerivative · entry 2

Izzar Rachid · CIK 0001875506 · Head of Global Product Strat.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,144

SEC source: 0001127602-23-020238 · form4.xml · nonDerivative · entry 1

Izzar Rachid · CIK 0001875506 · Head of Global Product Strat.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,388

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-23-020236 · form4.xml · derivative · entry 3

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 252 shares

Expires 2023-07-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The restricted stock units vested in three (3) equal annual installments commencing one year after the grant date of 07/01/2020.

SEC source: 0001127602-23-020236 · form4.xml · nonDerivative · entry 2

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,973.7483

SEC source: 0001127602-23-020236 · form4.xml · nonDerivative · entry 1

Kramer Robin · CIK 0001609222 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,095.7483

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.