Biogen Inc. (BIIB)
NASDAQ: BIIB
· Real-Time Price · USD
137.37
1.70 (1.25%)
At close: Sep 26, 2025, 3:59 PM
137.00
-0.27%
After-hours: Sep 26, 2025, 07:51 PM EDT
Biogen dark pool activity today shows an average trade size of 11,661 with $1.6M average premium per trade.
| Rank | Time | Price | Size | Volume | Size / Vol | Size / Avg Vol | Avg. Paid |
|---|---|---|---|---|---|---|---|
| 1 | 9/26/2025 12:30 PM | 137.23 | 50,000 | 426,869 | 11.71% | 3.38% | 6.86M |
| 2 | 9/26/2025 12:29 PM | 137.22 | 25,000 | 363,788 | 6.87% | 1.69% | 3.43M |
| 3 | 9/26/2025 02:55 PM | 136.32 | 25,000 | 966,280 | 2.59% | 1.69% | 3.41M |
| Date | Long Volume | Short Volume | Long / Short | % Short Change |
|---|---|---|---|---|
| Sep 26, 2025 | 335.37K | 480.69K | 0.70 | 71.89% |
| Sep 19, 2025 | 259.81K | 279.65K | 0.93 | -37.87% |
| Sep 12, 2025 | 328.05K | 450.11K | 0.73 | 29.68% |
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