ALEXANDER SUSAN H

PrivateCIK: 1263839
Location

CAMBRIDGE, MA

ALEXANDER SUSAN H (EVP Chief Legal Officer & Sec.) exercised options at BIOGEN INC.

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

M · 3 exercises
InsiderALEXANDER SUSAN HCIK 1263839
IssuerBIOGEN INC.CIK 875045
Officer· EVP Chief Legal Officer & Sec.
Since Feb 2019
-3.50K
Net shares
Net seller
$704.9K
Total sold
0
Open market trades
0B · 0S
9
Total transactions
9.05K acquired · 12.55K disposed
Non-Derivative Transactions6

Common Stock

Direct
M · Option Exercise

Shares

+2.19K

Price / share

Trade value

% of position

6.0%
2/6/2026
36.27K38.45K

Common Stock

Direct
F · Tax Withholding

Shares

1.06K

Price / share

$201.18

Trade value

$213.05K

% of position

2.8%
2/6/2026
38.45K37.40K

Common Stock

Direct
M · Option Exercise

Shares

+1.94K

Price / share

Trade value

% of position

5.2%
2/6/2026
37.40K39.34K

Common Stock

Direct
F · Tax Withholding

Shares

931.00

Price / share

$201.18

Trade value

$187.30K

% of position

2.4%
2/6/2026
39.34K38.41K

Common Stock

Direct
M · Option Exercise

Shares

+4.92K

Price / share

Trade value

% of position

12.8%
2/6/2026
38.41K43.32K

Common Stock

Direct
F · Tax Withholding

Shares

1.51K

Price / share

$201.18

Trade value

$304.59K

% of position

3.5%
2/6/2026
43.32K41.81K
Total

Net shares

+5.54K

Net value

-$704.93K

Derivative Transactions3

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

2.19K shares

Shares

2.19K

Strike price

0

Held after

0.00

Exercisable

2/6/2026

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

1.94K shares

Shares

1.94K

Strike price

0

Held after

1.94K

Exercisable

2/6/2026

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

4.92K shares

Shares

4.92K

Strike price

0

Held after

9.83K

Exercisable

2/6/2026
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned20.08K
Total
20.08K indirect20.08K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
ALEXANDER SUSAN H — Insider Transaction (Form 4) Filed Feb 10, 2026 | Finecho