---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-047943"
form_type: "8-K"
ticker: "OSG"
cik: "0000874501"
company_name: "OCTAVE SPECIALTY GROUP INC"
filed_at: "2025-11-03T23:59:59+00:00"
generated_at: "2026-05-17T01:01:43.301351+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Ambac completes $250M acquisition of ArmadaCare from SiriusPoint; debt financing in place

## Summary
- Total consideration ~$250M; funded via $100M term loan, $20M revolver draw, and cash on hand.
- Credit agreement with Truist Bank provides $120M senior secured facilities; borrowings bear SOFR plus 2.25%-2.75% margin.
- ArmadaCare to retain brand, led by CEO Ed Walker, operate as wholly owned subsidiary of Ambac.
- Ambac CEO Claude LeBlanc cites strengthened financial profile, diversified distribution platform.

## SEC filing metadata
- accession: 0001628280-25-047943
- form_type: 8-K
- ticker: OSG
- cik: 0000874501
- company_name: OCTAVE SPECIALTY GROUP INC
- filed_at: 2025-11-03T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.01, 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/874501/000162828025047943/0001628280-25-047943-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/874501/000162828025047943/ambc-20251031.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-047943
- JSON: https://secwatch.observer/filing/0001628280-25-047943.json
- Plain text: https://secwatch.observer/filing/0001628280-25-047943.txt

## Source-grounded claims
- claim_id: 1377b2f0a3d162032000726bfd4e79ea0803c228
  claim: OCTAVE SPECIALTY GROUP INC completed an acquisition involving Sirius Acquisitions Holding Company for Total consideration as of the Closing Date was approximately $250,000,000. (closed 2025-10-31).
  evidence_excerpt: Cirrata VI, Sirius Re Holdings, Inc. (“Seller Parent”) and Sirius Acquisitions Holding Company (the “Seller”). Total consideration as of the Closing Date was approximately $250,000,000. $100,000,000 was financed with the Term Loan, $20,000,000 was drawn under the Revolving Facility and the remaining purchase price was paid with cash on hand. The description of
  evidence_url: https://www.sec.gov/Archives/edgar/data/874501/000162828025047943/0001628280-25-047943-index.htm

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