---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-011282"
form_type: "8-K"
ticker: "STRO"
cik: "0001382101"
company_name: "SUTRO BIOPHARMA, INC."
filed_at: "2022-06-07T23:59:59+00:00"
generated_at: "2026-06-25T03:51:34.606742+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Sutro Biopharma stockholders elect four Class I directors, approve say-on-pay and auditor at 2022 annual meeting

## Summary
- Four Class I directors elected: Michael Dybbs, John G. Freund, Heidi Hunter, Jon Wigginton, each to serve three-year terms.
- Ratification of Ernst & Young as independent auditor for FY2022 approved with 43,752,354 votes for, 11,569 against.
- Advisory vote on named executive officer compensation (say-on-pay) approved with 40,921,442 for, 759,278 against.
- Stockholders selected one-year frequency for future advisory votes on executive compensation; board adopts annual frequency.

## SEC filing metadata
- accession: 0000950170-22-011282
- form_type: 8-K
- ticker: STRO
- cik: 0001382101
- company_name: SUTRO BIOPHARMA, INC.
- filed_at: 2022-06-07T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1382101/000095017022011282/0000950170-22-011282-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1382101/000095017022011282/stro-20220606.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-011282
- JSON: https://secwatch.observer/filing/0000950170-22-011282.json
- Plain text: https://secwatch.observer/filing/0000950170-22-011282.txt

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