The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Viehbacher Christopher since 2025.
This trader's CIK number is 1774478.
At the time of last reporting, Viehbacher Christopher was the President and CEO of Biogen Inc.. (stock ticker symbol BIIB).
Also see all insider trading activities at Biogen Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | BIIB | 0 | $0 | 0 | $0 | 7,040 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-12-01 | BIIB | Option Ex | 7,040 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Viehbacher Christopher (President and CEO of Biogen Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.