---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-039189"
form_type: "8-K"
ticker: "CSTL"
cik: "0001447362"
company_name: "CASTLE BIOSCIENCES INC"
filed_at: "2026-05-29T20:14:42+00:00"
generated_at: "2026-05-29T20:16:17.952008+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Castle Biosciences stockholders elect three Class I directors and ratify KPMG as auditor at 2026 annual meeting

## Summary
- Ellen Goldberg, Miles D. Harrison, and Tiffany P. Olson elected as Class I directors to serve until 2029 annual meeting.
- KPMG LLP ratified as independent auditor for FY 2026 with 24,531,366 for, 445,666 against, 12,187 abstain.
- Advisory vote on named executive officer compensation approved: 21,280,180 for, 1,281,394 against, 11,857 abstain.
- Non-employee director compensation policy approved: 21,394,330 for, 1,130,133 against, 48,968 abstain.
- All four proposals passed with requisite votes; broker non-votes of 2,415,788 on director elections and advisory/compensation items.

## SEC filing metadata
- accession: 0001628280-26-039189
- form_type: 8-K
- ticker: CSTL
- cik: 0001447362
- company_name: CASTLE BIOSCIENCES INC
- filed_at: 2026-05-29T20:14:42+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1447362/000162828026039189/0001628280-26-039189-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1447362/000162828026039189/cstl-20260528.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-039189
- JSON: https://secwatch.observer/filing/0001628280-26-039189.json
- Plain text: https://secwatch.observer/filing/0001628280-26-039189.txt

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