Form SEC STAFF LETTER - SEC Staff Letter: REDACTED EXHIBIT
SEC Accession No. 9999999997-24-004125
Filing Date
2024-10-16
Accepted
2024-10-17 08:52:07
Documents
1

Document Format Files

Seq Description Document Type Size
1 filename1.pdf REDACTED EXHIBIT 44941
  Complete submission text file 9999999997-24-004125.txt   62969
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)

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