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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001209191-19-008289
Filing Date
2019-02-07
Accepted
2019-02-07 19:28:27
Documents
2
Period of Report
2019-02-07

Document Format Files

Seq Description Document Type Size
1 FORM 3 SUBMISSION doc3.html 3  
1 FORM 3 SUBMISSION doc3.xml 3 17155
2 POA DOCUMENT poa.txt EX-24.3_831261 2916
  Complete submission text file 0001209191-19-008289.txt   24932
Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
CRANDELL KEITH (Reporting) CIK: 0001219039 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576917

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
NELSEN ROBERT (Reporting) CIK: 0001219042 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576916

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
BYBEE CLINTON (Reporting) CIK: 0001219043 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576918

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Fund IX, L.P. (Reporting) CIK: 0001666306 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576914

Mailing Address 8725 W. HIGGINS ROAD, SUITE 290 CHICAGO IL 60631
Business Address 8725 W. HIGGINS ROAD, SUITE 290 CHICAGO IL 60631 773-380-6600
ARCH Venture Fund IX Overage, L.P. (Reporting) CIK: 0001666307 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576915

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Partners IX Overage, L.P. (Reporting) CIK: 0001723172 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576913

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Partners IX, L.P. (Reporting) CIK: 0001723173 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576912

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Partners IX, LLC (Reporting) CIK: 0001723174 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38796 | Film No.: 19576911

Mailing Address 3013 SCIENCE PARK SUITE 200 SAN DIEGO CA 92121
Business Address 3013 SCIENCE PARK SUITE 200 SAN DIEGO CA 92121 (858) 922-0718
Gossamer Bio, Inc. (Issuer) CIK: 0001728117 (see all company filings)

IRS No.: 475461709 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations