CEO exercised or converted 7,040 BIIB derivative securities | OQRO Insider tradesWhy it stands out
Derivative exercise or conversion — not an open-market buy.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
All the details
Dates, kept separate
- Transaction date
- Dec 1, 2025
- Reporting period
- Not applicable
- Filed with the SEC
- Dec 3, 2025
CEOOption exercise
Context
- Classification
option exercise
Code M — exercise or conversion of a derivative security
- Planned / mechanical clue
Footnote references vesting of compensation awards
Only flagged when a footnote says so; never inferred
Source receipt
- Record ID
- 0000875045-25-000052
Added to OQROOct 2, 2026, 12:27 PM UTC Data qualityVerified: identifiers matched exactly Reporting personChristopher Viehbacher RelationshipDirector, Officer Officer titlePresident and CEO SecurityRestricted Stock Unit TableDerivative (Table II) Transaction dateDec 1, 2025 Acquired / disposedDisposed (D) Footnotes from the filing
- Each Restricted Stock Unit ("RSU") represents the right to receive, at settlement, one share of common stock.
- Each RSU vested on the third anniversary of the grant date of December 1, 2022.
Around the same time
Derivative exercise or conversion — not an open-market buy.
Routine share withholding; mechanical by default.
Derivative exercise or conversion — not an open-market buy.