D. E. Shaw & Co., L.P. 13D and 13G filings for Gossamer Bio, 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 |
| 2026-08-24 8:11 pm Sale | 2026-08-20 | 13D | GOSSAMER BIO INC GOSS | D. E. Shaw & Co., L.P. | 29,128,194 6.000% | -5,481,371 (-15.84%) | Filing |
| 2026-07-24 9:14 pm Sale | 2026-07-22 | 13D | GOSSAMER BIO INC GOSS | D. E. Shaw & Co., L.P. | 34,609,565 7.100% | -6,021,161 (-14.82%) | Filing |
| 2026-07-01 9:23 pm Sale | 2026-06-29 | 13D | GOSSAMER BIO INC GOSS | D. E. Shaw & Co., L.P. | 40,630,726 8.300% | -5,854,569 (-12.59%) | Filing |
| 2026-06-11 9:13 pm Purchase | 2026-06-04 | 13D | GOSSAMER BIO INC GOSS | D. E. Shaw & Co., L.P. | 46,485,295 9.500% | 46,485,295 (New Position) | Filing |