VIEHBACHER CHRISTOPHER (President and CEO) exercised options at BIOGEN INC.
Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.
M · 1 exercise
Filed: 12/3/2025ACC: 0000875045-25-000052
DirectorOfficer· President and CEO
Since Feb 2026
-3.40K
Net shares
Net seller
$605.2K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
7.04K acquired · 10.44K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+7.04K
Price / share
—
Trade value
—
% of position
55.0%
12/1/2025
12.81K→19.85K
Common Stock
Direct
Shares
−3.40K
Price / share
$177.78
Trade value
$605.16K
% of position
17.2%
12/1/2025
19.85K→16.44K
Total
Net shares
+3.64K
Net value
-$605.16K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 12/1/2025 | M · Option Exercise | +7.04K | — | — | 55.0% | 12.81K | 19.85K |
| Common Stock Direct | 12/1/2025 | F · Tax Withholding | −3.40K | $177.78 | $605.16K | 17.2% | 19.85K | 16.44K |
| Total | +3.64K | -$605.16K | ||||||
Derivative Transactions1
Restricted Stock Unit
Direct
Converts to
Common Stock
7.04K shares
Shares
−7.04K
Strike price
Held after
0.00
Exercisable
—
12/1/2025
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Unit Direct | Common Stock7.04K shares | 12/1/2025 | M · Option Exercise | −7.04K | — | 0.00 |