---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-063617"
form_type: "8-K"
ticker: "SBXD"
cik: "0002015947"
company_name: "SilverBox Corp IV"
filed_at: "2025-06-27T23:59:59+00:00"
generated_at: "2026-05-18T16:54:19.914949+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# SilverBox Corp IV director Matthew Eilers resigns; Glenn Marino appointed to board

## Summary
- Eilers resigned effective June 25, 2025, to avoid appearance of conflict due to new role at an investment bank.
- Glenn Marino, age 68, appointed to board effective June 25, 2025; also joins Audit, Compensation, and Nominating committees.
- Marino brings over 30 years consumer finance experience; former EVP at Synchrony and CEO of GE Sales Finance.
- Marino qualifies as audit committee financial expert; entered standard indemnity agreement and IPO letter agreement.
- No familial relationships or related party transactions between Marino and the company.

## SEC filing metadata
- accession: 0001104659-25-063617
- form_type: 8-K
- ticker: SBXD
- cik: 0002015947
- company_name: SilverBox Corp IV
- filed_at: 2025-06-27T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2015947/000110465925063617/0001104659-25-063617-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2015947/000110465925063617/tm2518994d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-063617
- JSON: https://secwatch.observer/filing/0001104659-25-063617.json
- Plain text: https://secwatch.observer/filing/0001104659-25-063617.txt

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