---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-100860"
form_type: "8-K"
ticker: "DBHL"
cik: "0001918080"
company_name: "Deep Isolation Nuclear, Inc."
filed_at: "2025-10-21T23:59:59+00:00"
generated_at: "2026-05-17T03:05:24.901887+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Deep Isolation appoints Renée Hornbaker to Board of Directors

## Summary
- Renée Hornbaker appointed as Class A director, effective Oct 17, 2025.
- She will serve on Nominating & Governance, Compensation, and Audit Committees.
- Received equity awards: 32,500 RSUs ($97,500) and 10,833 options at $3.00 per share.
- Hornbaker brings 40+ years experience; former CFO of Flowserve, Stream Energy, and Shared Technologies.
- Board determined she is independent; holds NACD Directorship Certification.

## SEC filing metadata
- accession: 0001213900-25-100860
- form_type: 8-K
- ticker: DBHL
- cik: 0001918080
- company_name: Deep Isolation Nuclear, Inc.
- filed_at: 2025-10-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1918080/000121390025100860/0001213900-25-100860-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1918080/000121390025100860/ea0261764-8k_deep.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-100860
- JSON: https://secwatch.observer/filing/0001213900-25-100860.json
- Plain text: https://secwatch.observer/filing/0001213900-25-100860.txt

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