I did a quick search and found the following open territories (as of today):

These jobs matched the criteria specified for: Biogen Sales
1. Area Business Manager, Oncology - Washington, D.C.
2. Area Business Manager, Oncology - Miami, FL
3. Area Business Manager, Oncology - Alabama
4. Area Business Manager, Oncology - Indiana
5. Regional Sales Director - Oncology Sales - Heartland Region
6. Area Business Manager, Oncology - Seattle, WA
7. Area Business Manager, Oncology - Tampa, FL
8. Area Business Manager, Oncology - Central Valley/East SF Bay Area
9. Area Business Manager, Oncology - Southern Manhattan
10. Area Business Manager, Oncology - Oregon
11. Area Business Manager, RA - Baltimore
12. Area Business Manager, Oncology - Houston, TX
13. Area Business Manager, RA - Long Island, NY
14. Area Business Manager, Neurology - San Jose CA

Check them out at: Biogen