Mailing Address 3115 MERRYFIELD ROW SUITE 120 SAN DIEGO CA 92121
Business Address 3115 MERRYFIELD ROW SUITE 120 SAN DIEGO CA 92121 (858) 684-1300
Gossamer Bio, Inc. CIK#: 0001728117 (see all company filings)

SIC: 2834 - PHARMACEUTICAL PREPARATIONS
State location: CA | State of Inc.: DE | Fiscal Year End: 1231
(CF Office: 03 Life Sciences)
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Items 1 - 40  0001728117 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001728117-25-000023 (33 Act)  Size: 191 KB
2025-03-13 333-285779
25735659
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-25-000022 (34 Act)  Size: 238 KB
2025-03-13 001-38796
25735642
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001728117-25-000021 (34 Act)  Size: 10 MB
2025-03-13 001-38796
25735631
8-K  Documents   Interactive Data Current report, item 8.01
Acc-no: 0001728117-25-000004 (34 Act)  Size: 150 KB
2025-02-19 001-38796
25639771
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000950170-25-018890 (34 Act)  Size: 18 KB
2025-02-12 005-91334
25615268
SCHEDULE 13G  Documents Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001214659-25-002037 (34 Act)  Size: 10 KB
2025-02-05 005-91334
25594858
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000932471-25-000166 (34 Act)  Size: 6 KB
2025-01-30 005-91334
25575643
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001193125-24-256038 (34 Act)  Size: 146 KB
2024-11-12 005-91334
241449173
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000315066-24-002720 (34 Act)  Size: 8 KB
2024-11-12 005-91334
241444512
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-24-000093 (34 Act)  Size: 440 KB
2024-11-07 001-38796
241435411
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001728117-24-000092 (34 Act)  Size: 6 MB
2024-11-07 001-38796
241435386
8-K  Documents   Interactive Data Current report, item 3.01
Acc-no: 0001728117-24-000088 (34 Act)  Size: 154 KB
2024-09-13 001-38796
241297654
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-24-000086 (34 Act)  Size: 450 KB
2024-08-12 001-38796
241196658
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001728117-24-000085 (34 Act)  Size: 7 MB
2024-08-12 001-38796
241196642
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001193125-24-193046 (34 Act)  Size: 191 KB
2024-08-02 005-91334
241172621
8-K  Documents   Interactive Data Current report, item 8.01
Acc-no: 0001728117-24-000080 (34 Act)  Size: 150 KB
2024-07-18 001-38796
241124767
8-K  Documents   Interactive Data Current report, item 5.07
Acc-no: 0001728117-24-000069 (34 Act)  Size: 165 KB
2024-06-10 001-38796
241032600
8-K  Documents   Interactive Data Current report, item 3.01
Acc-no: 0001728117-24-000059 (34 Act)  Size: 154 KB
2024-05-24 001-38796
24984918
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-24-000057 (34 Act)  Size: 430 KB
2024-05-07 001-38796
24921674
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001728117-24-000056 (34 Act)  Size: 5 MB
2024-05-07 001-38796
24921659
8-K  Documents   Interactive Data Current report, items 1.01, 1.02, 3.02, 8.01, and 9.01
Acc-no: 0001728117-24-000052 (34 Act)  Size: 409 KB
2024-05-06 001-38796
24915583
ARS  Documents Annual Report to Security Holders
Acc-no: 0001728117-24-000050 (34 Act)  Size: 16 MB
2024-04-26 001-38796
24882100
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001728117-24-000045 (34 Act)  Size: 197 KB
2024-04-24 001-38796
24870506
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0001728117-24-000044 (34 Act)  Size: 3 MB
2024-04-24 001-38796
24870494
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0001728117-24-000024 (34 Act)  Size: 197 KB
2024-03-12 001-38796
24741977
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001728117-24-000020 (33 Act)  Size: 189 KB
2024-03-05 333-277653
24718297
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001728117-24-000019 (34 Act)  Size: 9 MB
2024-03-05 001-38796
24718289
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-24-000018 (34 Act)  Size: 224 KB
2024-03-05 001-38796
24718286
8-K  Documents   Interactive Data Current report, item 8.01
Acc-no: 0001728117-24-000013 (34 Act)  Size: 152 KB
2024-03-04 001-38796
24714925
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000902664-24-001739 (34 Act)  Size: 46 KB
2024-02-14 005-91334
24639497
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001104659-24-021039 (34 Act)  Size: 12 KB
2024-02-13 005-91334
24628566
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001072613-24-000116 (34 Act)  Size: 83 KB
2024-02-09 005-91334
24616362
SC 13G  Documents Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000315066-24-001145 (34 Act)  Size: 8 KB
2024-02-09 005-91334
24611633
SC 13G  Documents Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001193125-24-006630 (34 Act)  Size: 170 KB
2024-01-11 005-91334
24529579
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001273087-24-000008 (34 Act)  Size: 81 KB
2024-01-11 005-91334
24529350
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0001728117-23-000157 (34 Act)  Size: 191 KB
2023-11-29 001-38796
231452104
8-K  Documents   Interactive Data Current report, items 5.02, 5.03, and 9.01
Acc-no: 0001728117-23-000151 (34 Act)  Size: 692 KB
2023-11-27 001-38796
231440281
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001728117-23-000134 (34 Act)  Size: 5 MB
2023-11-09 001-38796
231390080
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-23-000133 (34 Act)  Size: 432 KB
2023-11-09 001-38796
231390079
8-K  Documents   Interactive Data Current report, item 3.01
Acc-no: 0001728117-23-000129 (34 Act)  Size: 157 KB
2023-10-20 001-38796
231337151