Portolan Capital Management, LLC 13D and 13G filings for Castle Biosciences, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2025-04-14 3:34 pm Purchase |
2025-04-07 | 13G | Castle Biosciences, Inc. CSTL |
Portolan Capital Management, LLC | 1,611,099 5.650% |
1,611,099 (New Position) |
Filing |