Upstream Bio, Inc. (UPB) Historical Stock Prices
Upstream Bio, Inc. (UPB) is a publicly traded company on the Nasdaq, categorized under SIC 2834 (Pharmaceutical Preparations). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: UPB
CIK: 2022626
Exchange: Nasdaq
SIC 2834: Pharmaceutical Preparations
Fiscal Year End: 12/31
State: DE
Independent PCAOB Auditor
Explore PCAOB Audit Intelligence →
Audit Firm
PricewaterhouseCoopers LLP
Auditor SinceSince 12/31/2023 12:00:00 AM
Lead Engagement PartnerFrancis Loftus
Audit LocationBoston, Massachusetts, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 4 | 2026-09-17 | 2026-09-16 | 4 | 0001193125-26-394322 | View SEC Doc Filr Page |
| 4 | 2026-09-17 | 2026-09-16 | 4 | 0001193125-26-394318 | View SEC Doc Filr Page |
| 4 | 2026-09-17 | 2026-09-16 | 4 | 0001193125-26-394330 | View SEC Doc Filr Page |
| 4 | 2026-09-17 | 2026-09-16 | 4 | 0001193125-26-394325 | View SEC Doc Filr Page |
| 4 | 2026-09-17 | 2026-09-16 | 4 | 0001193125-26-394324 | View SEC Doc Filr Page |
| 8-K | 2026-09-01 | 2026-09-01 | 8-K | 0001193125-26-377485 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-08-12 | — | SCHEDULE 13G/A Filing | 0001374170-26-000067 | View SEC Doc Filr Page |
| 10-Q | 2026-08-11 | 2026-06-30 | 10-Q | 0001193125-26-343417 | View SEC Doc Filr Page |
| 8-K | 2026-08-11 | 2026-08-11 | 8-K | 0001193125-26-343407 | View SEC Doc Filr Page |
| SCHEDULE 13G | 2026-07-30 | — | SCHEDULE 13G Filing | 0002012383-26-003119 | View SEC Doc Filr Page |
| 4 | 2026-06-17 | 2026-06-16 | 4 | 0001193125-26-274126 | View SEC Doc Filr Page |
| 4 | 2026-06-17 | 2026-06-16 | 4 | 0001193125-26-274125 | View SEC Doc Filr Page |
| 4 | 2026-06-17 | 2026-06-16 | 4 | 0001193125-26-274122 | View SEC Doc Filr Page |
| 4 | 2026-06-17 | 2026-06-16 | 4 | 0001193125-26-274121 | View SEC Doc Filr Page |
| 4 | 2026-06-17 | 2026-06-16 | 4 | 0001193125-26-274119 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-09 | 4 | 0001193125-26-268169 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-09 | 4 | 0001193125-26-268168 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-09 | 4 | 0001193125-26-268167 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-09 | 4 | 0001193125-26-268166 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-09 | 4 | 0001193125-26-268165 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-09 | 4 | 0001193125-26-268164 | View SEC Doc Filr Page |
| 8-K | 2026-06-10 | 2026-06-09 | 8-K | 0001193125-26-265800 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-05-15 | — | SCHEDULE 13G/A Filing | 0001834150-26-000003 | View SEC Doc Filr Page |
| 10-Q | 2026-05-13 | 2026-03-31 | 10-Q | 0001193125-26-220584 | View SEC Doc Filr Page |
| 8-K | 2026-05-13 | 2026-05-13 | 8-K | 0001193125-26-220578 | View SEC Doc Filr Page |