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Mailing Address 3013 SCIENCE PARK SAN DIEGO CA 92121
Business Address 3013 SCIENCE PARK SAN DIEGO CA 92121 (858) 922-0718
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 Filed/Effective File/Film Number
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 acquisition of beneficial ownership by individuals
Acc-no: 0000902664-24-001739 (34 Act)  Size: 46 KB
2024-02-14 005-91334
24639497
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-24-021039 (34 Act)  Size: 12 KB
2024-02-13 005-91334
24628566
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001072613-24-000116 (34 Act)  Size: 83 KB
2024-02-09 005-91334
24616362
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000315066-24-001145 (34 Act)  Size: 8 KB
2024-02-09 005-91334
24611633
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001193125-24-006630 (34 Act)  Size: 170 KB
2024-01-11 005-91334
24529579
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
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
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001728117-23-000127 (34 Act)  Size: 153 KB
2023-09-07 001-38796
231242956
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-23-002516 (33 Act)  Size: 1 KB
2023-08-28 16:00:00 333-274056
231217933
424B3  Documents Prospectus [Rule 424(b)(3)]
Acc-no: 0001728117-23-000124 (33 Act)  Size: 283 KB
2023-08-28 333-274056
231216146
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-23-009357 Size: 40 KB
2023-08-24
CORRESP  Documents [Cover]Correspondence
Acc-no: 0001728117-23-000121 Size: 7 KB
2023-08-24
DEL AM  Documents Delaying amendment
Acc-no: 0001728117-23-000118 (33 Act)  Size: 7 KB
2023-08-21 333-274056
231189089
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0001728117-23-000116 (33 Act)  Size: 475 KB
2023-08-18 333-274056
231183830
RW  Documents Registration Withdrawal Request
Acc-no: 0001728117-23-000114 (NE Act)  Size: 6 KB
2023-08-18 333-274045
231183828
S-3ASR  Documents Automatic shelf registration statement of securities of well-known seasoned issuers
Acc-no: 0001728117-23-000112 (33 Act)  Size: 477 KB
2023-08-17 333-274045
231181814
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001728117-23-000108 (34 Act)  Size: 5 MB
2023-08-08 001-38796
231151120
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001728117-23-000107 (34 Act)  Size: 431 KB
2023-08-08 001-38796
231151070
D  Documents Notice of Exempt Offering of Securities, item 06b
Acc-no: 0001567619-23-006809 (33 Act)  Size: 15 KB
2023-08-07 021-488995
231148172
SC 13D  Documents General statement of acquisition of beneficial ownership
Acc-no: 0001072613-23-000402 (34 Act)  Size: 445 KB
2023-07-28 005-91334
231122852
8-K  Documents   Interactive Data Current report, items 1.01, 3.02, 7.01, and 9.01
Acc-no: 0001728117-23-000094 (34 Act)  Size: 732 KB
2023-07-20 001-38796
231099719
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001728117-23-000091 (34 Act)  Size: 5 MB
2023-07-20 001-38796
231098099
8-K  Documents   Interactive Data Current report, items 5.03, 5.07, and 9.01
Acc-no: 0001728117-23-000081 (34 Act)  Size: 571 KB
2023-06-09 001-38796
231005421
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000093751-23-000562 (34 Act)  Size: 8 KB
2023-05-10 005-91334
23904608
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001728117-23-000051 (34 Act)  Size: 32 KB
2023-05-09 001-38796
23901860
8-K  Documents   Interactive Data Current report, item 2.02
Acc-no: 0001728117-23-000050 (34 Act)  Size: 441 KB
2023-05-09 001-38796
23901843
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001728117-23-000049 (34 Act)  Size: 5 MB
2023-05-09 001-38796
23901798
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001306550-23-009136 (34 Act)  Size: 12 KB
2023-05-05 005-91334
23892238