Priya Singhal, Head of Development at BIOGEN INC. (BIIB), sold 91 shares at $277.11 ($25K) on 2023-04-04, disclosed to the SEC on 2023-04-06.
Open-market sale of $25k BIIB by Head of Development. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| BIIB | SELL | 2025-09-02 | $138K | — | Filing → |
| BIIB | SELL | 2025-05-20 | $961K | — | Filing → |
| BIIB | SELL | 2024-12-09 | $17K | — | Filing → |