Avidity Partners Management LP 13D and 13G filings for Alpine Immune Sciences, 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 |
| 2023-02-14 3:38 pm Sale |
2022-12-31 | 13G | Alpine Immune Sciences, Inc. ALPN |
Avidity Partners Management LP | 1,888,887 4.000% |
-316,800 (-14.36%) |
Filing |
| 2022-02-11 8:18 pm Purchase |
2021-12-31 | 13G | Alpine Immune Sciences, Inc. ALPN |
Avidity Partners Management LP | 2,205,687 7.300% |
735,297 (+50.01%) |
Filing |
| 2021-02-16 4:46 pm Purchase |
2020-12-31 | 13G | Alpine Immune Sciences, Inc. ALPN |
Avidity Partners Management LP | 1,470,390 6.200% |
132,977 (+9.94%) |
Filing |
| 2020-12-23 4:09 pm Purchase |
2020-12-18 | 13G | Alpine Immune Sciences, Inc. ALPN |
Avidity Partners Management LP | 1,337,413 5.600% |
1,337,413 (New Position) |
Filing |