secwatch.observer — SEC 8-K summary
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Issuer:     Upstream Bio, Inc. (UPB)
CIK:        0002022626
Form:       8-K
Filed at:   2026-06-10T20:05:16+00:00
Accession:  0001193125-26-265800
Event type: other
Sentiment:  neutral
Materiality: 0.10
Item codes: 5.07
LLM model:  deepseek-v4-flash:cloud@v2

Upstream Bio stockholders elect H. Edward Fleming and Liam Ratcliffe as Class II directors at 2026 Annual Meeting
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- Both director nominees elected with over 40M votes for; Fleming received 40,715,035 for, Ratcliffe 43,812,021 for.
- Ratification of PricewaterhouseCoopers LLP as independent auditor for FY2026 approved 47,951,313 for, 143,251 against, 6,203 abstain.
- Record date Apr 13, 2026; 54,419,986 shares outstanding, 48,100,767 represented at meeting (quorum).

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/2022626/000119312526265800/0001193125-26-265800-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/2022626/000119312526265800/upb-20260609.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-265800

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer