SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0001193125-24-239740
Filing Date
2024-10-18
Accepted
2024-10-18 18:10:56
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G d814421dsc13g.htm SC 13G 48821
  Complete submission text file 0001193125-24-239740.txt   50337
Mailing Address 200 CLARENDON STREET BOSTON MA 02116
Business Address 200 CLARENDON STREET BOSTON MA 02116 6175162000
BCLS Fund III Investments, LP (Filed by) CIK: 0001952107 (see all company filings)

IRS No.: 873064173 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G

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. (Subject) CIK: 0002022626 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-94651 | Film No.: 241381615
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)