# Octave Specialty Group Inc: Form 8-K, filed Dec 15, 2025

- Company: [Octave Specialty Group Inc](/companies/osg.md) (CIK 874501)
- Form: 8-K
- Filed: 2025-12-15
- Accepted by EDGAR: Dec 15, 2025, 16:18 ET
- Period: 2025-12-10
- Accession: 0001628280-25-057024
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/874501/000162828025057024/ambc-20251210.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/874501/000162828025057024/

## Items reported

- Item 4.01: Change of auditor
- Item 9.01: Financial statements and exhibits

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/874501/000162828025057024/ambc-20251210.htm

Filed Dec 15, 2025.
Source: SEC EDGAR, the filing index for accession 0001628280-25-057024. Last ingested by Listed: Oct 30, 2026, 12:35 ET. No prices; not investment advice.