---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-051048"
form_type: "8-K"
ticker: "OSG"
cik: "0000874501"
company_name: "OCTAVE SPECIALTY GROUP INC"
filed_at: "2025-11-10T23:59:59+00:00"
generated_at: "2026-05-16T22:49:17.969702+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ambac Q3 net loss $112.6M; Insurance Distribution revenue up 80%, Everspan premiums down

## Summary
- Net loss attributable to shareholders of $112.6M ($2.35 per diluted share) vs $27.5M loss last year.
- Total P&C premium production up 32% to $343M; Insurance Distribution revenue grew 80% to $43M.
- Adjusted EBITDA from continuing ops to shareholders was -$2.9M vs +$1.9M YoY.
- Everspan net premiums written down 46% to $18M; expects combined ratio improvements by 2026-27.
- AFG repurchased 3.1M shares in Oct. at avg $8.48 (6.7% of shares outstanding).

## SEC filing metadata
- accession: 0001628280-25-051048
- form_type: 8-K
- ticker: OSG
- cik: 0000874501
- company_name: OCTAVE SPECIALTY GROUP INC
- filed_at: 2025-11-10T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/874501/000162828025051048/0001628280-25-051048-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/874501/000162828025051048/ambc-20251110.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-051048
- JSON: https://secwatch.observer/filing/0001628280-25-051048.json
- Plain text: https://secwatch.observer/filing/0001628280-25-051048.txt

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