
AMBAC FINANCIAL GROUP INC — Investor Relations & Filings
Octave Specialty Group, formerly Ambac Financial Group, Inc., is a global specialty insurance holding company. The firm builds and acquires innovative Managing General Agent (MGA) businesses operating in the specialty property and casualty insurance markets across the U.S., U.K., and Bermuda. Octave provides its portfolio companies with strategic direction, risk oversight, data and technology solutions, and capital support. The company partners with entrepreneurial leaders to strengthen, scale, and differentiate their businesses in complex and evolving markets, having divested its legacy financial guarantee operations to focus on its specialty insurance platform.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K | 2026-05-29 | English | |
| DEFA14A | 2026-05-14 | English | |
| Major Shareholding Notification 2026 | 2026-05-12 | English | |
| Major Shareholding Notification 2026 | 2026-05-11 | English | |
| 10-Q - OCTAVE SPECIALTY GROUP INC (0000874501) (Filer) | 2026-05-06 | English | |
| 8-K - OCTAVE SPECIALTY GROUP INC (0000874501) (Filer) | 2026-05-06 | English |
Browse filings by year
17 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 47894374 | 8-K | 2026-05-29 | English | ||
| 46292252 | DEFA14A | 2026-05-14 | English | ||
| 46146466 | Major Shareholding Notification 2026 | 2026-05-12 | English | ||
| 46146477 | Major Shareholding Notification 2026 | 2026-05-11 | English | ||
| 42019122 | 10-Q - OCTAVE SPECIALTY GROUP INC (0000874501) (Filer) | 2026-05-06 | English | ||
| 42014173 | 8-K - OCTAVE SPECIALTY GROUP INC (0000874501) (Filer) | 2026-05-06 | English | ||
| 46146532 | ARS | 2026-04-10 | English | ||
| 46146533 | DEFA14A | 2026-04-10 | English | ||
| 46146563 | DEF 14A | 2026-04-10 | English | ||
| 46146538 | 8-K | 2026-04-07 | English | ||
| 46146716 | Major Shareholding Notification 2026 | 2026-03-27 | English | ||
| 33043015 | 4 - OCTAVE SPECIALTY GROUP INC (0000874501) (Issuer) | 2026-03-25 | English | ||
| 46146714 | 10-K | 2026-03-04 | English | ||
| 32882683 | 8-K - AMBAC FINANCIAL GROUP INC (0000874501) (Filer) | 2026-02-23 | English | ||
| 24613611 | SCHEDULE 13G Filing | 2026-02-12 | English | ||
Market data
Market data not available
Price history
Peer group · Non-life insurance
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Insurance provider offering life and non-life products with…
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Provider of property and casualty insurance, loans, and inv…
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Definity Financial Corporation
P&C insurer providing personal and commercial coverage via …
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DFV Deutsche Familienversicherung AG
A digital insurer offering health, long-term care, property…
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An insurance provider offering personal and commercial gene…
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DONEGAL GROUP INC
An insurance holding company providing property and casualt…
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Dubai Insurance Co. PJSC
General insurance provider with 50+ years experience, servi…
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AMBAC FINANCIAL GROUP INC via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/32919/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=32919 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=32919 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=32919 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 32919}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for AMBAC FINANCIAL GROUP INC (id: 32919)"
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