BIIB
historical activity
Quarter Shares +/- Shares Change % Value($) % of Total value Avg Report Price($)
Q1 2026 280.8K -240.3K ↓46.12% 51.5M 0.63% 183.33
Q4 2025 521.1K -46.4K ↓8.18% 91.7M 1.26% 175.99
Q3 2025 567.5K +74.2K ↑15.03% 79.5M 1.05% 140.08
Q2 2025 493.4K +59.8K ↑13.80% 62.0M 0.98% 125.59
Q1 2025 433.5K +151.8K ↑53.89% 59.3M 1.24% 136.84
Q4 2024 281.7K +281.7K ↑100.00% 43.1M 0.98% 152.92