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Filing Detail
Form 8-K - Current report:
SEC Accession No. 0001193125-24-237580
Filing Date
2024-10-15
Accepted
2024-10-15 16:05:27
Documents
3
Period of Report
2024-10-10
Items
Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K d897785d8k.htm 8-K 19587
2 EX-3.1 d897785dex31.htm EX-3.1 29014
3 EX-3.2 d897785dex32.htm EX-3.2 121825
  Complete submission text file 0001193125-24-237580.txt   171602
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. (Filer) CIK: 0002022626 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-42366 | Film No.: 241371879
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)