| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2025 | Oct 1, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2025 | Oct 1, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2025 | Oct 1, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2025 | Oct 1, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2025 | Oct 1, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2025 | Oct 1, 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Sep 25, 2025 | Sep 24, 2025 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 20, 2025 | Aug 19, 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 5, 2025 | Aug 5, 2025 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 5, 2025 | Jun 30, 2025 | 001-38796 |
| SCHEDULE 13G | Open Document | Open Filing | Jul 29, 2025 | 005-91334 | ||
| SCHEDULE 13G | Open Document | Open Filing | Jul 17, 2025 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2025 | Jun 25, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2025 | Jun 25, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2025 | Jun 25, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2025 | Jun 25, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2025 | Jun 25, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2025 | Jun 25, 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jun 25, 2025 | Jun 25, 2025 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Jun 16, 2025 | Jun 16, 2025 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | May 15, 2025 | May 15, 2025 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 15, 2025 | Mar 31, 2025 | 001-38796 |
| ARS | Open Document | Open Filing | ARS | Apr 29, 2025 | Apr 28, 2025 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 29, 2025 | 001-38796 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | Apr 29, 2025 | Apr 28, 2025 | 001-38796 |
| S-8 | Open Document | Open Filing | S-8 | Mar 13, 2025 | 333-285779 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 13, 2025 | Mar 13, 2025 | 001-38796 |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 13, 2025 | Dec 31, 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2025 | Mar 4, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2025 | Mar 4, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2025 | Mar 4, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2025 | Mar 4, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2025 | Mar 4, 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2025 | Mar 4, 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Feb 19, 2025 | Feb 19, 2025 | 001-38796 |
| SCHEDULE 13G/A | Open Document | Open Filing | Feb 12, 2025 | 005-91334 | ||
| SCHEDULE 13G | Open Document | Open Filing | Feb 5, 2025 | 005-91334 | ||
| SCHEDULE 13G/A | Open Document | Open Filing | Jan 30, 2025 | 005-91334 | ||
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Nov 12, 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | Nov 12, 2024 | 005-91334 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 7, 2024 | Nov 7, 2024 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 7, 2024 | Sep 30, 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Sep 13, 2024 | Sep 11, 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 12, 2024 | Aug 12, 2024 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 12, 2024 | Jun 30, 2024 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Aug 2, 2024 | 005-91334 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 18, 2024 | Jul 18, 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2024 | Jun 24, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 24, 2024 | Jun 21, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 20, 2024 | Jun 18, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 20, 2024 | Jun 17, 2024 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jun 10, 2024 | Jun 6, 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2024 | Jun 6, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2024 | Jun 6, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2024 | Jun 6, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2024 | Jun 6, 2024 | |
| 8-K | Open Document | Data | Open Filing | 8-K | May 24, 2024 | May 22, 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | May 7, 2024 | May 7, 2024 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 7, 2024 | Mar 31, 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | May 6, 2024 | May 3, 2024 | 001-38796 |
| ARS | Open Document | Open Filing | ARS | Apr 26, 2024 | Apr 26, 2024 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 24, 2024 | 001-38796 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | Apr 24, 2024 | Apr 16, 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 28, 2024 | Mar 27, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 28, 2024 | Mar 27, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 28, 2024 | Mar 27, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2024 | Mar 18, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2024 | Mar 18, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 12, 2024 | Mar 11, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 12, 2024 | Mar 11, 2024 | |
| 3 | Open Document | Open Filing | FORM 3 | Mar 12, 2024 | Mar 11, 2024 | |
| 3 | Open Document | Open Filing | FORM 3 | Mar 12, 2024 | Mar 11, 2024 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 12, 2024 | Mar 11, 2024 | 001-38796 |
| S-8 | Open Document | Open Filing | S-8 | Mar 5, 2024 | 333-277653 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 5, 2024 | Dec 31, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 5, 2024 | Mar 5, 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 4, 2024 | Mar 4, 2024 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | GOSSAMER BIO, INC. | Feb 14, 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 13, 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | ARCH VENTURE FUND IX, L.P. - GOSSAMER BIO -- SCH 13G/A(#1-EXIT) | Feb 9, 2024 | 005-91334 | |
| SC 13G | Open Document | Open Filing | Feb 9, 2024 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | SC 13G | Jan 11, 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | Jan 11, 2024 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2024 | Jan 2, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2024 | Jan 2, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2024 | Jan 2, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2024 | Jan 2, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2024 | Jan 2, 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 5, 2023 | Dec 4, 2023 | |
| 3 | Open Document | Open Filing | FORM 3 | Dec 5, 2023 | Dec 4, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 29, 2023 | Nov 28, 2023 | |
| 3 | Open Document | Open Filing | FORM 3 | Nov 29, 2023 | Nov 28, 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 29, 2023 | Nov 28, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 27, 2023 | Nov 20, 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2023 | Nov 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2023 | Nov 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2023 | Nov 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2023 | Nov 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2023 | Nov 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 17, 2023 | Nov 15, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 14, 2023 | Nov 13, 2023 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 9, 2023 | Sep 30, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 9, 2023 | Nov 9, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Oct 20, 2023 | Oct 19, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Sep 7, 2023 | Sep 6, 2023 | 001-38796 |
| EFFECT | Open Document | Open Filing | Aug 28, 2023 | 333-274056 | ||
| 424B3 | Open Document | Open Filing | 424B3 | Aug 28, 2023 | 333-274056 | |
| UPLOAD | Open Document | Open Filing | Aug 24, 2023 | |||
| CORRESP | Open Document | Open Filing | Aug 24, 2023 | |||
| DEL AM | Open Document | Open Filing | DEL AM | Aug 21, 2023 | 333-274056 | |
| S-3 | Open Document | Open Filing | S-3 | Aug 18, 2023 | 333-274056 | |
| RW | Open Document | Open Filing | RW | Aug 18, 2023 | 333-274045 | |
| S-3ASR | Open Document | Open Filing | S-3ASR | Aug 17, 2023 | 333-274045 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 8, 2023 | Jun 30, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 8, 2023 | Aug 8, 2023 | 001-38796 |
| D | Open Document | Open Filing | Aug 7, 2023 | 021-488995 | ||
| SC 13D | Open Document | Open Filing | GROWTH EQUITY OPPORTUNITIES 18 VGE, LLC / GOSSAMER BIO, INC. -- SCHEDULE 13D | Jul 28, 2023 | 005-91334 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 26, 2023 | Jul 24, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 26, 2023 | Jul 24, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 26, 2023 | Jul 24, 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 20, 2023 | Jul 19, 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 20, 2023 | Jul 20, 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 26, 2023 | Jun 22, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2023 | Jun 8, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2023 | Jun 8, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2023 | Jun 8, 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jun 9, 2023 | Jun 8, 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2023 | Jun 8, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2023 | Jun 8, 2023 | |
| SC 13G/A | Open Document | Open Filing | May 10, 2023 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2023 | May 5, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2023 | May 5, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2023 | May 5, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2023 | May 5, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2023 | May 5, 2023 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | May 9, 2023 | 001-38796 | |
| 8-K | Open Document | Data | Open Filing | 8-K | May 9, 2023 | May 9, 2023 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 9, 2023 | Mar 31, 2023 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | May 5, 2023 | 005-91334 | ||
| ARS | Open Document | Open Filing | ARS | Apr 28, 2023 | Apr 28, 2023 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 28, 2023 | 001-38796 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | Apr 28, 2023 | 001-38796 | |
| PRE 14A | Open Document | Data | Open Filing | PRE 14A | Apr 17, 2023 | 001-38796 | |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2023 | Apr 4, 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 3, 2023 | Apr 3, 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2023 | Mar 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2023 | Mar 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2023 | Mar 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2023 | Mar 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2023 | Mar 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 22, 2023 | Mar 20, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 20, 2023 | Mar 16, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 20, 2023 | Mar 16, 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 20, 2023 | Mar 16, 2023 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 17, 2023 | Dec 31, 2022 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 17, 2023 | Mar 17, 2023 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | GOSSAMER BIO, INC. | Feb 14, 2023 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 9, 2023 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | Feb 1, 2023 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | Jan 10, 2023 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | Jan 4, 2023 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | Dec 20, 2022 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | Dec 9, 2022 | Dec 7, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 9, 2022 | Dec 7, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 9, 2022 | Dec 7, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 9, 2022 | Dec 7, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 9, 2022 | Dec 7, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Dec 9, 2022 | Dec 7, 2022 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 6, 2022 | Dec 6, 2022 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 3, 2022 | Sep 30, 2022 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 3, 2022 | Nov 3, 2022 | 001-38796 |
| 4/A | Open Document | Open Filing | FORM 4/A | Oct 27, 2022 | Oct 24, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 25, 2022 | Oct 24, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 25, 2022 | Oct 24, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 25, 2022 | Oct 24, 2022 | |
| S-3ASR | Open Document | Open Filing | S-3ASR | Aug 9, 2022 | 333-266701 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 9, 2022 | Jun 30, 2022 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 9, 2022 | Aug 9, 2022 | 001-38796 |
| D | Open Document | Open Filing | Jul 18, 2022 | 021-452776 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jun 9, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jun 9, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jun 9, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jun 9, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jun 9, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jun 9, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jul 15, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jul 15, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jul 15, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 15, 2022 | Jul 15, 2022 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 13, 2022 | Jul 13, 2022 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2022 | Jul 1, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2022 | Jun 22, 2022 | |
| 8-K | Open Document | Open Filing | 8-K | Jun 10, 2022 | Jun 9, 2022 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 10, 2022 | Mar 31, 2022 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | May 10, 2022 | May 10, 2022 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2022 | May 4, 2022 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 27, 2022 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Apr 27, 2022 | Jun 9, 2022 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Apr 25, 2022 | Apr 25, 2022 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2022 | Mar 23, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2022 | Mar 23, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2022 | Mar 23, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 16, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 16, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 16, 2022 | |
| S-8 | Open Document | Open Filing | S-8 | Mar 3, 2022 | 333-263260 | |
| S-3ASR | Open Document | Open Filing | S-3 | Mar 3, 2022 | 333-263259 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 3, 2022 | Dec 31, 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 3, 2022 | Mar 3, 2022 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 10, 2022 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | Feb 3, 2022 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2022 | Jan 6, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2022 | Jan 6, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2022 | Jan 6, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2022 | Jan 6, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2022 | Jan 6, 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2022 | Jan 6, 2022 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 8, 2021 | Sep 30, 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 8, 2021 | Nov 8, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2021 | Oct 25, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2021 | Oct 25, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2021 | Oct 25, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Oct 12, 2021 | Oct 11, 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Sep 21, 2021 | Sep 16, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 20, 2021 | Sep 16, 2021 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 9, 2021 | Jun 30, 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 9, 2021 | Aug 9, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 1, 2021 | Jun 30, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 22, 2021 | Jun 21, 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | Jun 22, 2021 | Jun 21, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2021 | Jun 10, 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | Jun 14, 2021 | Jun 10, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jun 14, 2021 | Jun 9, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2021 | Jun 9, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2021 | Jun 9, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2021 | Jun 9, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2021 | Jun 9, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2021 | Jun 9, 2021 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 6, 2021 | Mar 31, 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | May 6, 2021 | May 6, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2021 | May 3, 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | May 5, 2021 | May 3, 2021 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 27, 2021 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Apr 27, 2021 | Jun 9, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 20, 2021 | Apr 16, 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | Apr 20, 2021 | Apr 16, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 20, 2021 | Apr 17, 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2021 | Mar 23, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2021 | Mar 23, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2021 | Mar 23, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2021 | Feb 25, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2021 | Feb 25, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2021 | Feb 25, 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2021 | Feb 25, 2021 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Feb 26, 2021 | Dec 31, 2020 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Feb 25, 2021 | Feb 25, 2021 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | GOSSAMER BIO, INC. | Feb 16, 2021 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | Feb 12, 2021 | ||
| SC 13G | Open Document | Open Filing | SC 13G | Feb 12, 2021 | ||
| SC 13G/A | Open Document | Open Filing | SC 13G/A | Feb 12, 2021 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 10, 2021 | 005-91334 | |
| SC 13G | Open Document | Open Filing | Feb 2, 2021 | 005-91334 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 17, 2020 | Nov 16, 2020 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 10, 2020 | Sep 30, 2020 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 10, 2020 | Nov 10, 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 14, 2020 | Oct 14, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 14, 2020 | Oct 14, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 14, 2020 | Oct 14, 2020 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 13, 2020 | Oct 13, 2020 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 11, 2020 | Jun 30, 2020 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Aug 11, 2020 | Aug 11, 2020 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Jul 2, 2020 | Jul 2, 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 23, 2020 | Jun 23, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 18, 2020 | Jun 17, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 18, 2020 | Jun 17, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 18, 2020 | Jun 17, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 18, 2020 | Jun 17, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 18, 2020 | Jun 17, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 18, 2020 | Jun 17, 2020 | |
| 8-K | Open Document | Open Filing | 8-K | Jun 18, 2020 | Jun 17, 2020 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | Jun 9, 2020 | 005-91334 | ||
| 8-K | Open Document | Open Filing | 8-K | May 21, 2020 | May 18, 2020 | 001-38796 |
| 424B5 | Open Document | Open Filing | 424B5 | May 19, 2020 | 333-237639 | |
| 424B5 | Open Document | Open Filing | 424B5 | May 19, 2020 | 333-237639 | |
| FWP | Open Document | Open Filing | FWP | May 19, 2020 | 333-237639 | |
| FWP | Open Document | Open Filing | FWP | May 18, 2020 | 333-237639 | |
| 305B2 | Open Document | Open Filing | 305B2 | May 18, 2020 | 333-237639 | |
| 424B5 | Open Document | Open Filing | 424B5 | May 18, 2020 | 333-237639 | |
| 424B5 | Open Document | Open Filing | 424B5 | May 18, 2020 | 333-237639 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 12, 2020 | Mar 31, 2020 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | May 12, 2020 | May 12, 2020 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 27, 2020 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Apr 27, 2020 | Jun 17, 2020 | 001-38796 |
| S-3ASR | Open Document | Open Filing | S-3ASR | Apr 10, 2020 | 333-237639 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 24, 2020 | Dec 31, 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Mar 24, 2020 | Mar 24, 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2020 | Feb 14, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2020 | Feb 14, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2020 | Feb 14, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2020 | Feb 14, 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2020 | Feb 14, 2020 | |
| SC 13G | Open Document | Open Filing | GOSSAMER BIO, INC. | Feb 14, 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | Feb 14, 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | ARCH VENTURE FUND IX, L.P. - GOSSAMER BIO, INC. -- SCHEDULE 13G | Feb 13, 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | Feb 11, 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | Feb 10, 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | Feb 10, 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | Feb 7, 2020 | 005-91334 | ||
| 8-K | Open Document | Open Filing | 8-K | Jan 13, 2020 | Jan 13, 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 2, 2020 | Dec 31, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 31, 2019 | Dec 27, 2019 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 12, 2019 | Sep 30, 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Nov 12, 2019 | Nov 12, 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 27, 2019 | Sep 27, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 27, 2019 | Sep 27, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 27, 2019 | Sep 27, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 26, 2019 | Sep 26, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 23, 2019 | Sep 20, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 18, 2019 | Sep 16, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Sep 13, 2019 | Sep 12, 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 12, 2019 | Sep 10, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2019 | Sep 5, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 29, 2019 | Aug 28, 2019 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q - Q2 FY2019 | Aug 8, 2019 | Jun 30, 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Aug 8, 2019 | Aug 8, 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2019 | Jun 10, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2019 | Jun 10, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2019 | Jun 10, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2019 | Jun 10, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2019 | Jun 10, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2019 | Jun 10, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Jun 11, 2019 | Jun 10, 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2019 | May 30, 2019 | |
| 8-K | Open Document | Open Filing | 5-30-8-K-HASNAIN TRANSITION | May 30, 2019 | May 30, 2019 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 14, 2019 | Mar 31, 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | May 14, 2019 | May 14, 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | May 3, 2019 | May 2, 2019 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Apr 30, 2019 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Apr 30, 2019 | Jun 10, 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 25, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 25, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 25, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 25, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 25, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2019 | Mar 25, 2019 | |
| 10-K | Open Document | Open Filing | 10-K | Mar 22, 2019 | Dec 31, 2018 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Mar 22, 2019 | Mar 22, 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | Mar 11, 2019 | Mar 7, 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 12, 2019 | Feb 12, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Feb 12, 2019 | Feb 12, 2019 | 001-38796 |
| S-8 | Open Document | Open Filing | S-8 | Feb 8, 2019 | 333-229586 | |
| 424B4 | Open Document | Open Filing | 424B4 | Feb 8, 2019 | 333-228984 | |
| CT ORDER | Open Document | Open Filing | Feb 8, 2019 | 333-228984 | ||
| EFFECT | Open Document | Open Filing | Feb 7, 2019 | 333-228984 | ||
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 7, 2019 | Feb 7, 2019 | |
| S-1MEF | Open Document | Open Filing | S-1MEF | Feb 7, 2019 | 333-229561 | |
| CORRESP | Open Document | Open Filing | Feb 5, 2019 | |||
| CORRESP | Open Document | Open Filing | Feb 5, 2019 | |||
| CERT | Open Document | Open Filing | Feb 5, 2019 | 001-38796 | ||
| 8-A12B | Open Document | Open Filing | 8-A12B | Feb 4, 2019 | 001-38796 | |
| FWP | Open Document | Open Filing | FWP | Jan 30, 2019 | 333-228984 | |
| S-1/A | Open Document | Open Filing | S-1/A | Jan 30, 2019 | 333-228984 | |
| FWP | Open Document | Open Filing | FWP | Jan 24, 2019 | 333-228984 | |
| S-1/A | Open Document | Open Filing | S-1/A | Jan 23, 2019 | 333-228984 | |
| CORRESP | Open Document | Open Filing | Dec 26, 2018 | |||
| CORRESP | Open Document | Open Filing | Dec 21, 2018 | |||
| S-1 | Open Document | Open Filing | S-1 | Dec 21, 2018 | 333-228984 | |
| UPLOAD | Open Document | Open Filing | Dec 14, 2018 | |||
| DRSLTR | Open Document | Open Filing | Nov 29, 2018 | |||
| DRS/A | Open Document | Open Filing | Nov 29, 2018 | 377-02311 | ||
| UPLOAD | Open Document | Open Filing | Nov 9, 2018 | |||
| DRS | Open Document | Open Filing | Oct 11, 2018 | 377-02311 | ||
| D | Open Document | Open Filing | Aug 1, 2018 | 021-318226 | ||
| D | Open Document | Open Filing | Jan 19, 2018 | 021-303730 | ||
| D | Open Document | Open Filing | Jan 19, 2018 | 021-303729 |