---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-133268"
form_type: "8-K"
ticker: "STRO"
cik: "0001382101"
company_name: "SUTRO BIOPHARMA, INC."
filed_at: "2025-06-02T23:59:59+00:00"
generated_at: "2026-05-20T02:34:54.038553+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Sutro Biopharma appoints Gregory K. Chow as CFO effective June 2, 2025

## Summary
- Gregory K. Chow appointed CFO, principal financial and accounting officer, effective June 2, 2025.
- Base salary $475,000; target annual bonus 40% of base salary.
- Receives option for 275,000 shares (4-year vest) and 100,000 RSUs (4-year vest).
- Prior roles: CFO of NodThera (Aug 2024-Mar 2025), Freenome (Jan-Aug 2024), Frontier Medicines (Mar 2021-Dec 2024).
- Severance on non-cause termination: 15 months salary + pro-rata bonus + COBRA; full acceleration upon change in control within 18 months.

## SEC filing metadata
- accession: 0001193125-25-133268
- form_type: 8-K
- ticker: STRO
- cik: 0001382101
- company_name: SUTRO BIOPHARMA, INC.
- filed_at: 2025-06-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1382101/000119312525133268/0001193125-25-133268-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1382101/000119312525133268/d945851d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-133268
- JSON: https://secwatch.observer/filing/0001193125-25-133268.json
- Plain text: https://secwatch.observer/filing/0001193125-25-133268.txt

## Key facts
- Executive change
  Gregory K. Chow was appointed as Chief Financial Officer at SUTRO BIOPHARMA, INC..
  - Action: appointed
  - Role: Chief Financial Officer
  source text: On June 2, 2025 Sutro Biopharma, Inc. (the “Company”) announced the appointment of Gregory K. Chow as its Chief Financial Officer, principal financial officer and principal accounting officer, effective as of June 2, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1382101/000119312525133268/0001193125-25-133268-index.htm

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