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
CountryUnited States
Founded1971
IndustryInsurance - Specialty
SectorFinancials
Employees380
CEOClaude LeBlanc

Contact Details

Address:
One World Trade Center, 41st Floor
New York, New York 10007
United States
Phone212 658 7470
Websiteoctavegroup.com

Stock Details

Ticker SymbolOSG
ExchangeNYSE
Stock TypeCommon Stock
Fiscal YearJanuary - December
Reporting CurrencyUSD
CIK Code0000874501
CUSIP Number69036R863
ISIN NumberUS69036R8631
Employer ID13-3621676
SIC Code6351

Key Executives

NamePosition
Claude L. LeBlanc CPAPresident, Chief Executive Officer and Director
David TrickExecutive Vice President, Chief Financial Officer and Treasurer
Rhonta Sharon SmithExecutive Vice President and Group Chief Operating Officer
Stephen Michael KsenakChief Legal Officer
Cristina AhnChief Accounting Officer
Karen L. BeyerMD and Head of Investor Relations
Kate SmithDirector of Corporate Communications
Daniel Matthew McGinnis C.P.C.U.Senior Managing Director
Lawrence MetzSenior Managing Director and General Counsel
William Joseph WhiteFirst Vice President, Assistant General Counsel and Corporate Secretary

Latest SEC Filings

DateTypeTitle
Nov 13, 2025SCHEDULE 13G/AFiling
Nov 10, 20258-KCurrent Report
Nov 10, 202510-QQuarterly Report
Nov 10, 20258-KCurrent Report
Nov 3, 20258-KCurrent Report
Oct 17, 2025SCHEDULE 13G/AFiling
Oct 9, 2025SCHEDULE 13G/AFiling
Sep 30, 20258-KCurrent Report
Sep 29, 20258-KCurrent Report
Sep 29, 20258-KCurrent Report