Upstream Bio, Inc. (UPB)
Nasdaq: UPB · Pharmaceutical Preparations · Waltham, MA · filing with the SEC since 2024
Who runs Upstream Bio, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Sutherland Everett Rand
Chief Executive Officer. First filing Oct 2024, latest Sep 17, 2026, 3 filings in all.
Officers reporting now
5
of 11 people with a filing in the last fifteen months
Directors reporting now
6
15 people on the record since 2024
Officerssales are open-market, Sep 30, 2025 to Sep 30, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Sutherland Everett Rand | Chief Executive Officer | Oct 2024 | Sep 17, 2026 | 3 · $0.00 |
| Gray Michael | CFO and COO | Oct 2024 | Sep 17, 2026 | 3 · $0.00 |
| Deykin Aaron | Chief Medical Officer | Oct 2024 | Sep 17, 2026 | 3 · $0.00 |
| Houghton Adam | Chief Business Officer | Oct 2024 | Sep 17, 2026 | 3 · $0.00 |
| Ambrose Allison | General Counsel | Dec 2024 | Sep 17, 2026 | 3 · $0.00 |
Directorssales are open-market, Sep 30, 2025 to Sep 30, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Beckman Daniella | director | Oct 2024 | Jun 11, 2026 | none |
| Chimovits Erez | director | Oct 2024 | Jun 11, 2026 | none |
| Fleming Harold Edward | director | Oct 2024 | Jun 11, 2026 | none |
| Ratcliffe Liam | director | Oct 2024 | Jun 11, 2026 | none |
| Renaud Ronald C Jr | director | Oct 2024 | Jun 11, 2026 | none |
| Ruddy Marcella K. | director | Oct 2024 | Jun 11, 2026 | none |
Earlier names on the record10, newest filing first
Orbimed Advisors Israel II Ltd · director · last filing Oct 2024Orbimed Advisors LLC · director · last filing Oct 2024Orbimed Capital Gp Viii LLC · director · last filing Oct 2024Orbimed Israel Gp II, L.P. · director · last filing Oct 2024Access Industries Holdings LLC · 10% owner · last filing Oct 2024Access Industries Management, LLC · 10% owner · last filing Oct 2024Ai Biotechnology LLC · 10% owner · last filing Oct 2024Ai Upstream LLC · 10% owner · last filing Oct 2024Blavatnik Len · 10% owner · last filing Oct 2024Wellington Biomedical Innovation Master Investors (Cayman) II L.P. · 10% owner · last filing Oct 2024
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.