Form S-1 - General form for registration of securities under the Securities Act of 1933:
SEC Accession No. 0001193125-24-221372
Filing Date
2024-09-18
Accepted
2024-09-18 16:06:13
Documents
48

Document Format Files

Seq Description Document Type Size
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  Complete submission text file 0001193125-24-221372.txt   11649025
Mailing Address 460 TOTTEN POND ROAD, SUITE 420 WALTHAM MA 02451
Business Address 460 TOTTEN POND ROAD, SUITE 420 WALTHAM MA 02451 781-208-2466
Upstream Bio, Inc. (Filer) CIK: 0002022626 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: S-1 | Act: 33 | File No.: 333-282197 | Film No.: 241307511
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)