Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001728117-26-000037
Filing Date
2026-05-18
Accepted
2026-05-18 07:07:40
Documents
2

Document Format Files

Seq Description Document Type Size
1 DEFA14A a20260518-gossxdefa14a.htm DEFA14A 547512
2 GRAPHIC image_0.jpg GRAPHIC 3033
  Complete submission text file 0001728117-26-000037.txt   552851
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. (Filer) CIK: 0001728117 (see all company filings)

EIN.: 475461709 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-38796 | Film No.: 26990764
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)