Company Description
Octave Specialty Group, Inc., an insurance holding company, primarily engages in the specialty property and casualty insurance business in the United States and the United Kingdom.
It operates in two segments, Specialty Property and Casualty Insurance; and Insurance Distribution. The Specialty Property and Casualty Insurance segment provides specialty property and casualty program insurance with a focus on commercial and personal liability risks.
The Insurance Distribution segment offers property, niche specialty risk, accident and health, miscellaneous specialty, reinsurance, surety, marine and energy, specialty auto, excess and surplus lines commercial package, professional lines, and directors’ and officers’ insurance.
The company was formerly known as Ambac Financial Group, Inc. and changed its name to Octave Specialty Group, Inc. in November 2025.
The company was incorporated in 1991 and is headquartered in New York, New York.
| Country | United States |
| Founded | 1971 |
| Industry | Insurance - Specialty |
| Sector | Financials |
| Employees | 483 |
| CEO | Claude LeBlanc |
Contact Details
Address: 40 Wall Street, 55th Floor New York, New York 10005 United States | |
| Phone | 212 658 7470 |
| Website | octavegroup.com |
Stock Details
| Ticker Symbol | OSG |
| Exchange | NYSE |
| Stock Type | Common Stock |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0000874501 |
| CUSIP Number | 023139884 |
| ISIN Number | US0231398845 |
| Employer ID | 13-3621676 |
| SIC Code | 6351 |
Key Executives
| Name | Position |
|---|---|
| Claude LeBlanc C.P.A. | President, Chief Executive Officer and Director |
| David Trick | Executive Vice President, Chief Financial Officer and Treasurer |
| Rhonta Sharon Smith | Executive Vice President and Group Chief Operating Officer |
| Lawrence F. Metz | Senior MD and General Counsel |
| Cristina Ahn | Chief Accounting Officer |
| Randy Paez | Chief Information Officer |
| Karen L. Beyer | MD and Head of Investor Relations |
| Kate Smith | Director of Corporate Communications |
| Cheryl Walter | Chief People Officer |
| Darwin Earl Lucas | President of Everspan Group |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Apr 10, 2026 | ARS | Filing |
| Apr 10, 2026 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material |
| Apr 10, 2026 | DEF 14A | Other definitive proxy statements |
| Apr 7, 2026 | 8-K | Current Report |
| Mar 27, 2026 | SCHEDULE 13G/A | Filing |
| Mar 4, 2026 | 10-K | Annual Report |
| Feb 23, 2026 | 8-K | Current Report |
| Feb 12, 2026 | SCHEDULE 13G | Filing |
| Feb 11, 2026 | SCHEDULE 13G | Filing |
| Jan 6, 2026 | 8-K | Current Report |