Octave Specialty Group, Inc. (OSG)
NYSE: OSG · Real-Time Price · USD
8.33
-0.26 (-3.03%)
Dec 5, 2025, 4:00 PM EST - Market closed

Company Description

Octave Specialty Group, Inc. operates as a financial services holding company.

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 specialty property and casualty insurance distribution services, which include managing general agents, underwriters, insurance broker, and other distribution and underwriting businesses.

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 founded in 1971 and is headquartered in New York, New York.

Octave Specialty Group, Inc.
Octave Specialty Group logo
Country United States
Founded 1971
Industry Insurance - Specialty
Sector Financials
Employees 380
CEO Claude LeBlanc

Contact Details

Address:
One World Trade Center, 41st Floor
New York, New York 10007
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 69036R863
ISIN Number US69036R8631
Employer ID 13-3621676
SIC Code 6351

Key Executives

Name Position
Claude L. LeBlanc CPA 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
Stephen Michael Ksenak Chief Legal Officer
Cristina Ahn Chief Accounting Officer
Karen L. Beyer MD and Head of Investor Relations
Kate Smith Director of Corporate Communications
Daniel Matthew McGinnis C.P.C.U. Senior Managing Director
Lawrence Metz Senior Managing Director and General Counsel
William Joseph White First Vice President, Assistant General Counsel and Corporate Secretary

Latest SEC Filings

Date Type Title
Nov 13, 2025 SCHEDULE 13G/A Filing
Nov 10, 2025 8-K Current Report
Nov 10, 2025 10-Q Quarterly Report
Nov 10, 2025 8-K Current Report
Nov 3, 2025 8-K Current Report
Oct 17, 2025 SCHEDULE 13G/A Filing
Oct 9, 2025 SCHEDULE 13G/A Filing
Sep 30, 2025 8-K Current Report
Sep 29, 2025 8-K Current Report
Sep 29, 2025 8-K Current Report