---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-053733"
form_type: "8-K"
ticker: "STRO"
cik: "0001382101"
company_name: "SUTRO BIOPHARMA, INC."
filed_at: "2025-04-14T23:59:59+00:00"
generated_at: "2026-05-23T15:22:22.505111+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Director John Freund not standing for re-election at June 6, 2025 Annual Meeting

## Summary
- John Freund, board member since 2014, will not stand for re-election at the Annual Meeting on June 6, 2025.
- His term expires following the meeting; no disagreement with company operations, policies, or practices.
- Freund will continue to advise management as a consultant after his board term ends.

## SEC filing metadata
- accession: 0000950170-25-053733
- form_type: 8-K
- ticker: STRO
- cik: 0001382101
- company_name: SUTRO BIOPHARMA, INC.
- filed_at: 2025-04-14T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1382101/000095017025053733/0000950170-25-053733-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1382101/000095017025053733/stro-20250410.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-053733
- JSON: https://secwatch.observer/filing/0000950170-25-053733.json
- Plain text: https://secwatch.observer/filing/0000950170-25-053733.txt

## Key facts
- Executive change
  John Freund departed as director at SUTRO BIOPHARMA, INC..
  - Action: not stand for re-election
  source text: John Freund, M.D., a member of the Board of Directors (the “Board”) of Sutro Biopharma, Inc., a Delaware corporation (the “Company”) since 2014, informed the Board of his decision to not stand for re-election to the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1382101/000095017025053733/0000950170-25-053733-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.