Here are the DEF 14A proxy statements from Upstream Bio, Inc. (UPB) in our archive over the last 12 months, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A DEF 14A covers the proxy statement, with executive pay and the shareholder votes, so if you follow UPB and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full UPB filings page.
Upstream Bio, Inc. is calling a virtual 2026 annual stockholder meeting on June 9, 2026 at 9:00 a.m. Eastern Time. Holders of its 54,419,986 outstanding common shares as of April 13, 2026 may vote online on two main items: electing two Class II directors, H. Edward Fleming, Jr., M.D. and Liam Ratcliffe, M.B.Ch.B., Ph.D., M.B.A., to new three‑year terms, and ratifying PricewaterhouseCoopers LLP as independent auditor for the 2026 fiscal year. The company uses “notice and access” to distribute proxy materials electronically, remains an emerging growth and smaller reporting company, and describes its board structure, committee responsibilities, director pay, and executive compensation, including stock‑based incentives and a formal executive severance plan tied to change‑in‑control events.