Alpine ImmunoSciences L.P. 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 |
| 2023-11-13 9:15 pm Purchase | 2023-11-09 | 13D | Alpine Immune Sciences, Inc. ALPN | Alpine ImmunoSciences L.P. | 4,266,215 7.200% | 360,625 (+9.23%) | Filing |
| 2022-09-27 5:02 pm Purchase | 2022-09-23 | 13D | Alpine Immune Sciences, Inc. ALPN | Alpine ImmunoSciences L.P. | 3,905,590 8.600% | 237,292 (+6.47%) | Filing |
| 2021-09-21 5:03 pm Sale | 2021-09-17 | 13D | Alpine Immune Sciences, Inc. ALPN | Alpine ImmunoSciences L.P. | 3,668,298 12.200% | -544,310 (-12.92%) | Filing |
| 2020-12-22 5:16 pm Sale | 2020-12-22 | 13D | Alpine Immune Sciences, Inc. ALPN | Alpine ImmunoSciences L.P. | 4,212,608 17.100% | -527,620 (-11.13%) | Filing |
| 2020-07-31 7:48 pm Purchase | 2020-07-28 | 13D | Alpine Immune Sciences, Inc. ALPN | Alpine ImmunoSciences L.P. | 4,740,228 19.400% | 224,832 (+4.98%) | Filing |