Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000950170-24-114148
Filing Date
2024-10-10
Accepted
2024-10-10 20:09:53
Documents
1
Period of Report
2024-10-10

Document Format Files

Seq Description Document Type Size
1 3 ownership.html 3  
1 3 ownership.xml 3 14129
  Complete submission text file 0000950170-24-114148.txt   17506
Mailing Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022
Business Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022 (212) 739-6400
ORBIMED ADVISORS LLC (Reporting) CIK: 0001055951 (see all company filings)

State of Incorp.: DE
Type: 3 | Act: 34 | File No.: 001-42366 | Film No.: 241366123

Mailing Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022
Business Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022 212-739-6400
OrbiMed Israel GP II, L.P. (Reporting) CIK: 0001682090 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-42366 | Film No.: 241366120

Mailing Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022
Business Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022 212-739-6400
OrbiMed Advisors Israel II Ltd (Reporting) CIK: 0001682093 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-42366 | Film No.: 241366121

Mailing Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022-4629
Business Address 601 LEXINGTON AVENUE 54TH FLOOR NEW YORK NY 10022-4629 (212) 739-6400
OrbiMed Capital GP VIII LLC (Reporting) CIK: 0001845804 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-42366 | Film No.: 241366122

Mailing Address 890 WINTER STREET, SUITE 200 WALTHAM MA 02451
Business Address 890 WINTER STREET, SUITE 200 WALTHAM MA 02451 781-208-2466
Upstream Bio, Inc. (Issuer) CIK: 0002022626 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)