---
schema_version: "secwatch.filing_event.v1"
accession: "0000874501-24-000238"
form_type: "8-K"
ticker: "OSG"
cik: "0000874501"
company_name: "OCTAVE SPECIALTY GROUP INC"
filed_at: "2024-10-16T23:59:59+00:00"
generated_at: "2026-05-30T14:15:25.058029+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Ambac shareholders approve sale of Ambac Assurance Corp to Oaktree Capital

## Summary
- Sale of all Ambac Assurance Corp shares to Oaktree-backed buyer approved with ~36.1M for, 1.9M against.
- Advisory vote on executive compensation tied to sale passed with ~34.0M for, 3.8M against.
- Adjournment proposal also passed with ~34.6M for; over 38M shares voted (~80% of outstanding).
- Purchase agreement dated June 4, 2024; sale may constitute transfer of substantially all company assets.

## SEC filing metadata
- accession: 0000874501-24-000238
- form_type: 8-K
- ticker: OSG
- cik: 0000874501
- company_name: OCTAVE SPECIALTY GROUP INC
- filed_at: 2024-10-16T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/874501/000087450124000238/0000874501-24-000238-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/874501/000087450124000238/ambc-20241016.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000874501-24-000238
- JSON: https://secwatch.observer/filing/0000874501-24-000238.json
- Plain text: https://secwatch.observer/filing/0000874501-24-000238.txt

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