| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 8-K | Open Document | Data | Open Filing | 8-K | 05 Nov 2025 | 05 Nov 2025 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 05 Nov 2025 | 30 Sep 2025 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 25 Sep 2025 | 24 Sep 2025 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Aug 2025 | 19 Aug 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 05 Aug 2025 | 05 Aug 2025 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 05 Aug 2025 | 30 Jun 2025 | 001-38796 |
| SCHEDULE 13G | Open Document | Open Filing | 29 Jul 2025 | 005-91334 | ||
| SCHEDULE 13G | Open Document | Open Filing | 17 Jul 2025 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2025 | 25 Jun 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2025 | 25 Jun 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2025 | 25 Jun 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2025 | 25 Jun 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2025 | 25 Jun 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2025 | 25 Jun 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 25 Jun 2025 | 25 Jun 2025 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 16 Jun 2025 | 16 Jun 2025 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 15 May 2025 | 15 May 2025 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 15 May 2025 | 31 Mar 2025 | 001-38796 |
| ARS | Open Document | Open Filing | ARS | 29 Apr 2025 | 28 Apr 2025 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 29 Apr 2025 | 001-38796 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | 29 Apr 2025 | 28 Apr 2025 | 001-38796 |
| S-8 | Open Document | Open Filing | S-8 | 13 Mar 2025 | 333-285779 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 13 Mar 2025 | 13 Mar 2025 | 001-38796 |
| 10-K | Open Document | Data | Open Filing | 10-K | 13 Mar 2025 | 31 Dec 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Mar 2025 | 04 Mar 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Mar 2025 | 04 Mar 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Mar 2025 | 04 Mar 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Mar 2025 | 04 Mar 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Mar 2025 | 04 Mar 2025 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Mar 2025 | 04 Mar 2025 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 19 Feb 2025 | 19 Feb 2025 | 001-38796 |
| SCHEDULE 13G/A | Open Document | Open Filing | 12 Feb 2025 | 005-91334 | ||
| SCHEDULE 13G | Open Document | Open Filing | 05 Feb 2025 | 005-91334 | ||
| SCHEDULE 13G/A | Open Document | Open Filing | 30 Jan 2025 | 005-91334 | ||
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 12 Nov 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | 12 Nov 2024 | 005-91334 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | 07 Nov 2024 | 07 Nov 2024 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 Nov 2024 | 30 Sep 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 13 Sep 2024 | 11 Sep 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 12 Aug 2024 | 12 Aug 2024 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 12 Aug 2024 | 30 Jun 2024 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 02 Aug 2024 | 005-91334 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 18 Jul 2024 | 18 Jul 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Jun 2024 | 24 Jun 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 24 Jun 2024 | 21 Jun 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 20 Jun 2024 | 18 Jun 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 20 Jun 2024 | 17 Jun 2024 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 10 Jun 2024 | 06 Jun 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2024 | 06 Jun 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2024 | 06 Jun 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2024 | 06 Jun 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jun 2024 | 06 Jun 2024 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 24 May 2024 | 22 May 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 07 May 2024 | 07 May 2024 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 May 2024 | 31 Mar 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 06 May 2024 | 03 May 2024 | 001-38796 |
| ARS | Open Document | Open Filing | ARS | 26 Apr 2024 | 26 Apr 2024 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 24 Apr 2024 | 001-38796 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | 24 Apr 2024 | 16 Apr 2024 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2024 | 27 Mar 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2024 | 27 Mar 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2024 | 27 Mar 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2024 | 18 Mar 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2024 | 18 Mar 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 12 Mar 2024 | 11 Mar 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 12 Mar 2024 | 11 Mar 2024 | |
| 3 | Open Document | Open Filing | FORM 3 | 12 Mar 2024 | 11 Mar 2024 | |
| 3 | Open Document | Open Filing | FORM 3 | 12 Mar 2024 | 11 Mar 2024 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 12 Mar 2024 | 11 Mar 2024 | 001-38796 |
| S-8 | Open Document | Open Filing | S-8 | 05 Mar 2024 | 333-277653 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 05 Mar 2024 | 31 Dec 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 05 Mar 2024 | 05 Mar 2024 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 04 Mar 2024 | 04 Mar 2024 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | GOSSAMER BIO, INC. | 14 Feb 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 13 Feb 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | ARCH VENTURE FUND IX, L.P. - GOSSAMER BIO -- SCH 13G/A(#1-EXIT) | 09 Feb 2024 | 005-91334 | |
| SC 13G | Open Document | Open Filing | 09 Feb 2024 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | SC 13G | 11 Jan 2024 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | 11 Jan 2024 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2024 | 02 Jan 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2024 | 02 Jan 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2024 | 02 Jan 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2024 | 02 Jan 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2024 | 02 Jan 2024 | |
| 4 | Open Document | Open Filing | FORM 4 | 05 Dec 2023 | 04 Dec 2023 | |
| 3 | Open Document | Open Filing | FORM 3 | 05 Dec 2023 | 04 Dec 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 29 Nov 2023 | 28 Nov 2023 | |
| 3 | Open Document | Open Filing | FORM 3 | 29 Nov 2023 | 28 Nov 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 29 Nov 2023 | 28 Nov 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 27 Nov 2023 | 20 Nov 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2023 | 20 Nov 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2023 | 20 Nov 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2023 | 20 Nov 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2023 | 20 Nov 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Nov 2023 | 20 Nov 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2023 | 15 Nov 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 14 Nov 2023 | 13 Nov 2023 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Nov 2023 | 30 Sep 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 09 Nov 2023 | 09 Nov 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 20 Oct 2023 | 19 Oct 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 07 Sep 2023 | 06 Sep 2023 | 001-38796 |
| EFFECT | Open Document | Open Filing | 28 Aug 2023 | 333-274056 | ||
| 424B3 | Open Document | Open Filing | 424B3 | 28 Aug 2023 | 333-274056 | |
| UPLOAD | Open Document | Open Filing | 24 Aug 2023 | |||
| CORRESP | Open Document | Open Filing | 24 Aug 2023 | |||
| DEL AM | Open Document | Open Filing | DEL AM | 21 Aug 2023 | 333-274056 | |
| S-3 | Open Document | Open Filing | S-3 | 18 Aug 2023 | 333-274056 | |
| RW | Open Document | Open Filing | RW | 18 Aug 2023 | 333-274045 | |
| S-3ASR | Open Document | Open Filing | S-3ASR | 17 Aug 2023 | 333-274045 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Aug 2023 | 30 Jun 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 08 Aug 2023 | 08 Aug 2023 | 001-38796 |
| D | Open Document | Open Filing | 07 Aug 2023 | 021-488995 | ||
| SC 13D | Open Document | Open Filing | GROWTH EQUITY OPPORTUNITIES 18 VGE, LLC / GOSSAMER BIO, INC. -- SCHEDULE 13D | 28 Jul 2023 | 005-91334 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jul 2023 | 24 Jul 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jul 2023 | 24 Jul 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jul 2023 | 24 Jul 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 20 Jul 2023 | 19 Jul 2023 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 20 Jul 2023 | 20 Jul 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Jun 2023 | 22 Jun 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jun 2023 | 08 Jun 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jun 2023 | 08 Jun 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jun 2023 | 08 Jun 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 09 Jun 2023 | 08 Jun 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jun 2023 | 08 Jun 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Jun 2023 | 08 Jun 2023 | |
| SC 13G/A | Open Document | Open Filing | 10 May 2023 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2023 | 05 May 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2023 | 05 May 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2023 | 05 May 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2023 | 05 May 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2023 | 05 May 2023 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | 09 May 2023 | 001-38796 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 09 May 2023 | 09 May 2023 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 May 2023 | 31 Mar 2023 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | 05 May 2023 | 005-91334 | ||
| ARS | Open Document | Open Filing | ARS | 28 Apr 2023 | 28 Apr 2023 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 28 Apr 2023 | 001-38796 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | 28 Apr 2023 | 001-38796 | |
| PRE 14A | Open Document | Data | Open Filing | PRE 14A | 17 Apr 2023 | 001-38796 | |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2023 | 04 Apr 2023 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 03 Apr 2023 | 03 Apr 2023 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Mar 2023 | 20 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Mar 2023 | 20 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Mar 2023 | 20 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Mar 2023 | 20 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Mar 2023 | 20 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Mar 2023 | 20 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 20 Mar 2023 | 16 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 20 Mar 2023 | 16 Mar 2023 | |
| 4 | Open Document | Open Filing | FORM 4 | 20 Mar 2023 | 16 Mar 2023 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 17 Mar 2023 | 31 Dec 2022 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 17 Mar 2023 | 17 Mar 2023 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | GOSSAMER BIO, INC. | 14 Feb 2023 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 09 Feb 2023 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | 01 Feb 2023 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | 10 Jan 2023 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | 04 Jan 2023 | 005-91334 | ||
| SC 13G | Open Document | Open Filing | 20 Dec 2022 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2022 | 07 Dec 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2022 | 07 Dec 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2022 | 07 Dec 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2022 | 07 Dec 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2022 | 07 Dec 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2022 | 07 Dec 2022 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 06 Dec 2022 | 06 Dec 2022 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 03 Nov 2022 | 30 Sep 2022 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 03 Nov 2022 | 03 Nov 2022 | 001-38796 |
| 4/A | Open Document | Open Filing | FORM 4/A | 27 Oct 2022 | 24 Oct 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 25 Oct 2022 | 24 Oct 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 25 Oct 2022 | 24 Oct 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 25 Oct 2022 | 24 Oct 2022 | |
| S-3ASR | Open Document | Open Filing | S-3ASR | 09 Aug 2022 | 333-266701 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Aug 2022 | 30 Jun 2022 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 09 Aug 2022 | 09 Aug 2022 | 001-38796 |
| D | Open Document | Open Filing | 18 Jul 2022 | 021-452776 | ||
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 15 Jul 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 15 Jul 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 15 Jul 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 15 Jul 2022 | 15 Jul 2022 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 13 Jul 2022 | 13 Jul 2022 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jul 2022 | 01 Jul 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 23 Jun 2022 | 22 Jun 2022 | |
| 8-K | Open Document | Open Filing | 8-K | 10 Jun 2022 | 09 Jun 2022 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 10 May 2022 | 31 Mar 2022 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 10 May 2022 | 10 May 2022 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2022 | 04 May 2022 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | 27 Apr 2022 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 27 Apr 2022 | 09 Jun 2022 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 25 Apr 2022 | 25 Apr 2022 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2022 | 23 Mar 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2022 | 23 Mar 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2022 | 23 Mar 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2022 | 16 Mar 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2022 | 16 Mar 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2022 | 16 Mar 2022 | |
| S-8 | Open Document | Open Filing | S-8 | 03 Mar 2022 | 333-263260 | |
| S-3ASR | Open Document | Open Filing | S-3 | 03 Mar 2022 | 333-263259 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 03 Mar 2022 | 31 Dec 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 03 Mar 2022 | 03 Mar 2022 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 10 Feb 2022 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | 03 Feb 2022 | 005-91334 | ||
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2022 | 06 Jan 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2022 | 06 Jan 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2022 | 06 Jan 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2022 | 06 Jan 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2022 | 06 Jan 2022 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jan 2022 | 06 Jan 2022 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Nov 2021 | 30 Sep 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 08 Nov 2021 | 08 Nov 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Oct 2021 | 25 Oct 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Oct 2021 | 25 Oct 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 26 Oct 2021 | 25 Oct 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 12 Oct 2021 | 11 Oct 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 21 Sep 2021 | 16 Sep 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Sep 2021 | 16 Sep 2021 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Aug 2021 | 30 Jun 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 09 Aug 2021 | 09 Aug 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Jul 2021 | 30 Jun 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 22 Jun 2021 | 21 Jun 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | 22 Jun 2021 | 21 Jun 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 14 Jun 2021 | 10 Jun 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | 14 Jun 2021 | 10 Jun 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 14 Jun 2021 | 09 Jun 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2021 | 09 Jun 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2021 | 09 Jun 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2021 | 09 Jun 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2021 | 09 Jun 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 Jun 2021 | 09 Jun 2021 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 06 May 2021 | 31 Mar 2021 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 06 May 2021 | 06 May 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2021 | 03 May 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | 05 May 2021 | 03 May 2021 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | 27 Apr 2021 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 27 Apr 2021 | 09 Jun 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Apr 2021 | 16 Apr 2021 | |
| 3 | Open Document | Open Filing | FORM 3 | 20 Apr 2021 | 16 Apr 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | 20 Apr 2021 | 17 Apr 2021 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2021 | 23 Mar 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2021 | 23 Mar 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2021 | 23 Mar 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2021 | 25 Feb 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2021 | 25 Feb 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2021 | 25 Feb 2021 | |
| 4 | Open Document | Open Filing | FORM 4 | 01 Mar 2021 | 25 Feb 2021 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 26 Feb 2021 | 31 Dec 2020 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 25 Feb 2021 | 25 Feb 2021 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | GOSSAMER BIO, INC. | 16 Feb 2021 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | 12 Feb 2021 | ||
| SC 13G | Open Document | Open Filing | SC 13G | 12 Feb 2021 | ||
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 12 Feb 2021 | 005-91334 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 10 Feb 2021 | 005-91334 | |
| SC 13G | Open Document | Open Filing | 02 Feb 2021 | 005-91334 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | 17 Nov 2020 | 16 Nov 2020 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 10 Nov 2020 | 30 Sep 2020 | 001-38796 |
| 8-K | Open Document | Data | Open Filing | 8-K | 10 Nov 2020 | 10 Nov 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Oct 2020 | 14 Oct 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Oct 2020 | 14 Oct 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Oct 2020 | 14 Oct 2020 | |
| 8-K | Open Document | Open Filing | 8-K | 13 Oct 2020 | 13 Oct 2020 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 11 Aug 2020 | 30 Jun 2020 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 11 Aug 2020 | 11 Aug 2020 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 02 Jul 2020 | 02 Jul 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Jun 2020 | 23 Jun 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2020 | 17 Jun 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2020 | 17 Jun 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2020 | 17 Jun 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2020 | 17 Jun 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2020 | 17 Jun 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jun 2020 | 17 Jun 2020 | |
| 8-K | Open Document | Open Filing | 8-K | 18 Jun 2020 | 17 Jun 2020 | 001-38796 |
| SC 13G/A | Open Document | Open Filing | 09 Jun 2020 | 005-91334 | ||
| 8-K | Open Document | Open Filing | 8-K | 21 May 2020 | 18 May 2020 | 001-38796 |
| 424B5 | Open Document | Open Filing | 424B5 | 19 May 2020 | 333-237639 | |
| 424B5 | Open Document | Open Filing | 424B5 | 19 May 2020 | 333-237639 | |
| FWP | Open Document | Open Filing | FWP | 19 May 2020 | 333-237639 | |
| FWP | Open Document | Open Filing | FWP | 18 May 2020 | 333-237639 | |
| 305B2 | Open Document | Open Filing | 305B2 | 18 May 2020 | 333-237639 | |
| 424B5 | Open Document | Open Filing | 424B5 | 18 May 2020 | 333-237639 | |
| 424B5 | Open Document | Open Filing | 424B5 | 18 May 2020 | 333-237639 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 12 May 2020 | 31 Mar 2020 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 12 May 2020 | 12 May 2020 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 27 Apr 2020 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 27 Apr 2020 | 17 Jun 2020 | 001-38796 |
| S-3ASR | Open Document | Open Filing | S-3ASR | 10 Apr 2020 | 333-237639 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 24 Mar 2020 | 31 Dec 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 24 Mar 2020 | 24 Mar 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2020 | 14 Feb 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2020 | 14 Feb 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2020 | 14 Feb 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2020 | 14 Feb 2020 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2020 | 14 Feb 2020 | |
| SC 13G | Open Document | Open Filing | GOSSAMER BIO, INC. | 14 Feb 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | 14 Feb 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | ARCH VENTURE FUND IX, L.P. - GOSSAMER BIO, INC. -- SCHEDULE 13G | 13 Feb 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 11 Feb 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | 10 Feb 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | SC 13G | 10 Feb 2020 | 005-91334 | |
| SC 13G | Open Document | Open Filing | 07 Feb 2020 | 005-91334 | ||
| 8-K | Open Document | Open Filing | 8-K | 13 Jan 2020 | 13 Jan 2020 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jan 2020 | 31 Dec 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Dec 2019 | 27 Dec 2019 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 12 Nov 2019 | 30 Sep 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 12 Nov 2019 | 12 Nov 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Sep 2019 | 27 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Sep 2019 | 27 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Sep 2019 | 27 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Sep 2019 | 26 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Sep 2019 | 20 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Sep 2019 | 16 Sep 2019 | |
| 8-K | Open Document | Open Filing | 8-K | 13 Sep 2019 | 12 Sep 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Sep 2019 | 10 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Sep 2019 | 05 Sep 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Aug 2019 | 28 Aug 2019 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q - Q2 FY2019 | 08 Aug 2019 | 30 Jun 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 08 Aug 2019 | 08 Aug 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2019 | 10 Jun 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2019 | 10 Jun 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2019 | 10 Jun 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2019 | 10 Jun 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2019 | 10 Jun 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2019 | 10 Jun 2019 | |
| 8-K | Open Document | Open Filing | 8-K | 11 Jun 2019 | 10 Jun 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2019 | 30 May 2019 | |
| 8-K | Open Document | Open Filing | 5-30-8-K-HASNAIN TRANSITION | 30 May 2019 | 30 May 2019 | 001-38796 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 14 May 2019 | 31 Mar 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 14 May 2019 | 14 May 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 03 May 2019 | 02 May 2019 | 001-38796 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 30 Apr 2019 | 001-38796 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 30 Apr 2019 | 10 Jun 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2019 | 25 Mar 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2019 | 25 Mar 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2019 | 25 Mar 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2019 | 25 Mar 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2019 | 25 Mar 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2019 | 25 Mar 2019 | |
| 10-K | Open Document | Open Filing | 10-K | 22 Mar 2019 | 31 Dec 2018 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 22 Mar 2019 | 22 Mar 2019 | 001-38796 |
| 8-K | Open Document | Open Filing | 8-K | 11 Mar 2019 | 07 Mar 2019 | 001-38796 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2019 | 12 Feb 2019 | |
| 8-K | Open Document | Open Filing | 8-K | 12 Feb 2019 | 12 Feb 2019 | 001-38796 |
| S-8 | Open Document | Open Filing | S-8 | 08 Feb 2019 | 333-229586 | |
| 424B4 | Open Document | Open Filing | 424B4 | 08 Feb 2019 | 333-228984 | |
| CT ORDER | Open Document | Open Filing | 08 Feb 2019 | 333-228984 | ||
| EFFECT | Open Document | Open Filing | 07 Feb 2019 | 333-228984 | ||
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 07 Feb 2019 | 07 Feb 2019 | |
| S-1MEF | Open Document | Open Filing | S-1MEF | 07 Feb 2019 | 333-229561 | |
| CORRESP | Open Document | Open Filing | 05 Feb 2019 | |||
| CORRESP | Open Document | Open Filing | 05 Feb 2019 | |||
| CERT | Open Document | Open Filing | 05 Feb 2019 | 001-38796 | ||
| 8-A12B | Open Document | Open Filing | 8-A12B | 04 Feb 2019 | 001-38796 | |
| FWP | Open Document | Open Filing | FWP | 30 Jan 2019 | 333-228984 | |
| S-1/A | Open Document | Open Filing | S-1/A | 30 Jan 2019 | 333-228984 | |
| FWP | Open Document | Open Filing | FWP | 24 Jan 2019 | 333-228984 | |
| S-1/A | Open Document | Open Filing | S-1/A | 23 Jan 2019 | 333-228984 | |
| CORRESP | Open Document | Open Filing | 26 Dec 2018 | |||
| CORRESP | Open Document | Open Filing | 21 Dec 2018 | |||
| S-1 | Open Document | Open Filing | S-1 | 21 Dec 2018 | 333-228984 | |
| UPLOAD | Open Document | Open Filing | 14 Dec 2018 | |||
| DRSLTR | Open Document | Open Filing | 29 Nov 2018 | |||
| DRS/A | Open Document | Open Filing | 29 Nov 2018 | 377-02311 | ||
| UPLOAD | Open Document | Open Filing | 09 Nov 2018 | |||
| DRS | Open Document | Open Filing | 11 Oct 2018 | 377-02311 | ||
| D | Open Document | Open Filing | 01 Aug 2018 | 021-318226 | ||
| D | Open Document | Open Filing | 19 Jan 2018 | 021-303730 | ||
| D | Open Document | Open Filing | 19 Jan 2018 | 021-303729 |