MURPHY NICOLE (Head of Pharm Ops and Tech) exercised options at BIOGEN INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 3 exercises

MURPHY NICOLE

Filed: 2/10/2026ACC: 0000875045-26-000022

InsiderMURPHY NICOLECIK 1910644

→

IssuerBIOGEN INC.CIK 875045

Officer· Head of Pharm Ops and Tech

Since Feb 2022

-3.34K

Net shares

Net seller

$671.7K

Total sold

Open market trades

0B · 0S

Total transactions

8.72K acquired · 12.06K disposed

Non-Derivative Transactions6

Common Stock

Direct

M · Option Exercise

+2.10K

Price / share

—

Trade value

—

% of position

14.8%

2/6/2026

14.22K→16.32K

Common Stock

Direct

F · Tax Withholding

−1.02K

Price / share

$201.18

Trade value

$204.60K

% of position

6.2%

2/6/2026

16.32K→15.31K

Common Stock

Direct

M · Option Exercise

+1.94K

Price / share

—

Trade value

—

% of position

12.7%

2/6/2026

15.31K→17.25K

Common Stock

Direct

F · Tax Withholding

−914.00

Price / share

$201.18

Trade value

$183.88K

% of position

5.3%

2/6/2026

17.25K→16.33K

Common Stock

Direct

M · Option Exercise

+4.68K

Price / share

—

Trade value

—

% of position

28.7%

2/6/2026

16.33K→21.02K

Common Stock

Direct

F · Tax Withholding

−1.41K

Price / share

$201.18

Trade value

$283.26K

% of position

6.7%

2/6/2026

21.02K→19.61K

Total

Net shares

+5.39K

Net value

-$671.74K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	2/6/2026	M · Option Exercise	+2.10K	—	—	14.8%	14.22K	16.32K
Common Stock Direct	2/6/2026	F · Tax Withholding	−1.02K	$201.18	$204.60K	6.2%	16.32K	15.31K
Common Stock Direct	2/6/2026	M · Option Exercise	+1.94K	—	—	12.7%	15.31K	17.25K
Common Stock Direct	2/6/2026	F · Tax Withholding	−914.00	$201.18	$183.88K	5.3%	17.25K	16.33K
Common Stock Direct	2/6/2026	M · Option Exercise	+4.68K	—	—	28.7%	16.33K	21.02K
Common Stock Direct	2/6/2026	F · Tax Withholding	−1.41K	$201.18	$283.26K	6.7%	21.02K	19.61K
Total			+5.39K		-$671.74K

Derivative Transactions3

Restricted Stock Unit

Direct

M · Option Exercise

Converts to

Common Stock

2.10K shares

−2.10K

Strike price

Held after

0.00

Exercisable

—

2/6/2026

Restricted Stock Unit

Direct

M · Option Exercise

Converts to

Common Stock

1.94K shares

−1.94K

Strike price

Held after

1.94K

Exercisable

—

2/6/2026

Restricted Stock Unit

Direct

M · Option Exercise

Converts to

Common Stock

4.68K shares

−4.68K

Strike price

Held after

9.37K

Exercisable

—

2/6/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Unit Direct	Common Stock2.10K shares	2/6/2026	M · Option Exercise	−2.10K	—	0.00
Restricted Stock Unit Direct	Common Stock1.94K shares	2/6/2026	M · Option Exercise	−1.94K	—	1.94K
Restricted Stock Unit Direct	Common Stock4.68K shares	2/6/2026	M · Option Exercise	−4.68K	—	9.37K