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OSG Insider Trading

Insider Ownership Percentage: 6.20%
Insider Buying (Last 12 Months): $577,435.00
Insider Selling (Last 12 Months): $0.00

Octave Specialty Group Insider Trading History Chart

This chart shows the insider buying and selling history at Octave Specialty Group by year and by quarter.

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Octave Specialty Group Share Price & Price History

Current Price: $5.07
Price Change: ▼ Price Decrease of -0.57 (-10.11%)
As of 02/24/2026 04:59 PM ET

This chart shows the closing price history over time for OSG up to the past year.

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Days: 30 | 90 | 365

Octave Specialty Group Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/2/2026Claude LeBlancCEOBuy12,000$7.59$91,080.001,033,777View SEC Filing Icon  
11/12/2025R Sharon SmithCOOBuy20$10.25$205.00170,952View SEC Filing Icon  
10/1/2025Claude LeBlancCEOBuy25,000$8.54$213,500.001,021,777View SEC Filing Icon  
8/11/2025Claude LeBlancCEOBuy25,000$7.03$175,750.00603,291View SEC Filing Icon  
5/14/2025Jeffrey Scott SteinDirectorBuy15,000$6.46$96,900.0050,000View SEC Filing Icon  
9/26/2024Kristi Ann MatusDirectorBuy2,700$11.27$30,429.002,700View SEC Filing Icon  
8/8/2024R Sharon SmithVPBuy1,100$10.64$11,704.0074,707View SEC Filing Icon  
8/7/2024David TrickCFOBuy3,700$10.76$39,812.00156,082View SEC Filing Icon  
8/7/2024Jeffrey Scott SteinDirectorBuy25,000$10.82$270,500.0035,000View SEC Filing Icon  
8/7/2024Stephen Michael KsenakGeneral CounselBuy5,000$11.00$55,000.00116,609View SEC Filing Icon  
5/15/2024Samuel H. NortonCEOSell50,000$6.74$337,000.002,457,479View SEC Filing Icon  
4/15/2024Samuel H. NortonCEOSell20,337$5.98$121,615.262,537,142View SEC Filing Icon  
3/15/2024Samuel H. NortonCEOSell50,000$6.05$302,500.002,352,388View SEC Filing Icon  
2/15/2024Samuel H. NortonCEOSell50,000$6.28$314,000.002,268,296View SEC Filing Icon  
1/16/2024Samuel H. NortonCEOSell50,000$5.47$273,500.002,318,296View SEC Filing Icon  
12/15/2023Samuel H. NortonCEOSell50,000$4.78$239,000.002,368,296View SEC Filing Icon  
11/15/2023Samuel H. NortonCEOSell50,000$4.95$247,500.002,443,296View SEC Filing Icon  
10/16/2023Samuel H. NortonCEOSell24,987$4.63$115,689.812,518,309View SEC Filing Icon  
9/15/2023Samuel H. NortonCEOSell50,000$4.25$212,500.002,543,296View SEC Filing Icon  
9/1/2023Claude LeBlancCEOBuy2,500$13.29$33,225.00502,416View SEC Filing Icon  
8/24/2023Cyrus Capital Partners, L.P.Major ShareholderSell3,788,639$4.05$15,343,987.957,080,071View SEC Filing Icon  
8/17/2023Samuel H. NortonCEOSell15,041$4.00$60,164.002,593,296View SEC Filing Icon  
8/15/2023Samuel H. NortonCEOSell12,446$4.08$50,779.682,630,850View SEC Filing Icon  
6/13/2023Gary Eugene TaylorDirectorSell20,000$3.85$77,000.00203,541View SEC Filing Icon  
3/16/2023Douglas D WheatChairmanSell143,000$3.42$489,060.00210,633View SEC Filing Icon  
3/15/2023Julie SilcockDirectorSell66,584$3.48$231,712.3293,512View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Octave Specialty Group (NYSE:OSG)

80.92% of Octave Specialty Group stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at OSG by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Octave Specialty Group Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/23/2026Virtu Financial LLC19,235$0.15M0.0%N/A0.044%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.156,504$1.22M0.0%N/A0.357%Search for SEC Filing on Google Icon
2/18/2026Empowered Funds LLC160,387$1.25M0.0%N/A0.366%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd31,058$0.24M0.0%N/A0.071%Search for SEC Filing on Google Icon
2/18/2026nVerses Capital LLC12,181$95K0.2%N/A0.028%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd21,219$0.17M0.0%N/A0.048%Search for SEC Filing on Google Icon
2/18/2026Oxford Asset Management LLP25,413$0.20M0.1%N/A0.058%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC303,282$2.36M0.0%N/A0.692%Search for SEC Filing on Google Icon
2/18/2026Engineers Gate Manager LP81,585$0.64M0.0%N/A0.186%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.42,917$0.33M0.0%N/A0.098%Search for SEC Filing on Google Icon
2/18/2026Bridgeway Capital Management LLC245,387$1.91M0.0%N/A0.560%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC169,824$1.32M0.0%N/A0.388%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC70,128$0.55M0.0%N/A0.160%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC85,213$0.66M0.0%N/A0.195%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD70,941$0.55M0.0%N/A0.162%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.346,258$2.69M0.0%N/A0.790%Search for SEC Filing on Google Icon
2/17/2026Kemnay Advisory Services Inc.8,059$63K0.0%N/A0.018%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP109,765$0.85M0.0%N/A0.251%Search for SEC Filing on Google Icon
2/16/2026Wolf Hill Capital Management LP1,888,973$14.70M1.6%N/A4.312%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC17,500$0.14M0.0%N/A0.040%Search for SEC Filing on Google Icon
2/16/2026PEAK6 LLC30,478$0.24M0.0%N/A0.070%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC680,441$5.29M0.0%N/A1.553%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 12,594$98K0.0%N/A0.029%Search for SEC Filing on Google Icon
2/13/2026DLD Asset Management LP60,421$0.47M0.0%N/A0.138%Search for SEC Filing on Google Icon
2/13/2026Gendell Jeffrey L1,569,472$12.21M0.2%N/A3.582%Search for SEC Filing on Google Icon
2/13/2026Quarry LP15,103$0.12M0.0%N/A0.034%Search for SEC Filing on Google Icon
2/13/2026Jacobs Levy Equity Management Inc.237,185$1.85M0.0%N/A0.541%Search for SEC Filing on Google Icon
2/13/2026Essex Investment Management Co. LLC410,822$3.20M0.5%N/A0.938%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.361,424$2.81M0.0%N/A0.825%Search for SEC Filing on Google Icon
2/13/2026Police & Firemen s Retirement System of New Jersey11,825$92K0.0%N/A0.027%Search for SEC Filing on Google Icon
2/13/2026State Street Corp943,368$7.34M0.0%N/A2.153%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN85,734$0.67M0.0%N/A0.196%Search for SEC Filing on Google Icon
2/12/2026Third Avenue Management LLC782,093$6.09M1.1%N/A1.785%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC19,956$0.16M0.0%N/A0.046%Search for SEC Filing on Google Icon
2/12/2026State Board of Administration of Florida Retirement System12,630$98K0.0%N/A0.029%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC25,158$0.20M0.0%N/A0.057%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP1,685,627$13.11M0.0%N/A3.848%Search for SEC Filing on Google Icon
2/12/2026Federated Hermes Inc.4,420$34K0.0%N/A0.010%Search for SEC Filing on Google Icon
2/12/2026Cruiser Capital Advisors LLC107,140$0.83M0.7%N/A0.245%Search for SEC Filing on Google Icon
2/12/2026New York State Common Retirement Fund10,073$78K0.0%N/A0.023%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC810,279$6.30M0.0%N/A1.850%Search for SEC Filing on Google Icon
2/11/2026Empowered Funds LLC160,387$1.25M0.0%N/A0.366%Search for SEC Filing on Google Icon
2/11/2026Metis Global Partners LLC25,136$0.20M0.0%N/A0.057%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG25,647$0.20M0.0%N/A0.059%Search for SEC Filing on Google Icon
2/11/2026Fox Run Management L.L.C.42,354$0.33M0.1%N/A0.097%Search for SEC Filing on Google Icon
2/11/2026Cerity Partners LLC11,332$88K0.0%N/A0.026%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.11,959$93K0.0%N/A0.027%Search for SEC Filing on Google Icon
2/11/2026Arrowpoint Investment Partners Singapore Pte. Ltd.203,011$1.58M0.2%N/A0.463%Search for SEC Filing on Google Icon
2/11/2026State of Wyoming19,249$0.15M0.0%N/A0.044%Search for SEC Filing on Google Icon
2/10/2026CIBC Asset Management Inc23,893$0.19M0.0%N/A0.055%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.779,975$6.07M0.0%N/A1.780%Search for SEC Filing on Google Icon
2/10/2026AXQ Capital LP40,374$0.31M0.1%N/A0.092%Search for SEC Filing on Google Icon
2/10/2026Norges Bank75,000$0.58M0.0%N/A0.171%Search for SEC Filing on Google Icon
2/10/2026Intech Investment Management LLC21,038$0.16M0.0%N/A0.048%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC1,024,547$7.97M0.0%N/A2.339%Search for SEC Filing on Google Icon
2/6/2026Legato Capital Management LLC132,620$1.03M0.1%N/A0.303%Search for SEC Filing on Google Icon
2/6/2026Mraz Amerine & Associates Inc.18,950$0.15M0.0%N/A0.043%Search for SEC Filing on Google Icon
2/6/2026Prescott Group Capital Management L.L.C.893,517$6.95M0.6%N/A2.040%Search for SEC Filing on Google Icon
2/4/2026KLCM Advisors Inc.23,900$0.19M0.0%N/A0.055%Search for SEC Filing on Google Icon
2/3/2026Western Standard LLC2,504,627$19.49M9.0%N/A5.717%Search for SEC Filing on Google Icon
2/2/2026VELA Investment Management LLC178,752$1.39M0.3%N/A0.408%Search for SEC Filing on Google Icon
1/30/2026Harbor Advisors LLC196,382$1.53M0.2%N/A0.448%Search for SEC Filing on Google Icon
1/29/2026Inscription Capital LLC10,800$84K0.0%N/A0.025%Search for SEC Filing on Google Icon
1/29/2026Calamos Advisors LLC49,089$0.38M0.0%N/A0.112%Search for SEC Filing on Google Icon
1/28/2026Crown Wealth Group LLC11,162$87K0.0%N/A0.025%Search for SEC Filing on Google Icon
1/26/2026CWM LLC5,598$44K0.0%N/A0.013%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC403,237$3.64M0.0%+434.7%0.920%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.34,555$0.29M0.0%+10.6%0.079%Search for SEC Filing on Google Icon
1/1/2026Tudor Investment Corp ET AL125,155$1.04M0.0%-59.1%0.286%Search for SEC Filing on Google Icon
12/9/2025Tudor Investment Corp ET AL125,155$1.04M0.0%-59.1%0.286%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC20,533$0.17M0.0%-47.8%0.047%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC17,878$0.15M0.0%N/A0.041%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC700,895$5.85M0.0%-29.6%1.600%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.20,052$0.17M0.0%-23.7%0.046%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP35,485$0.30M0.0%-30.0%0.081%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE203,202$1.70M0.0%+22.2%0.464%Search for SEC Filing on Google Icon
11/17/2025Aquatic Capital Management LLC12,588$0.11M0.0%N/A0.029%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC548,442$4.57M0.0%+92.0%1.182%Search for SEC Filing on Google Icon
11/14/2025Creative Planning90,303$0.75M0.0%+342.2%0.195%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC319,493$2.67M0.1%+0.7%0.689%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC175,017$1.46M0.0%-70.8%0.377%Search for SEC Filing on Google Icon
11/14/2025Arrowpoint Investment Partners Singapore Pte. Ltd.203,011$1.69M1.7%N/A0.438%Search for SEC Filing on Google Icon
11/14/2025Continental General Insurance Co.2,068,349$17.25M3.4%+69.8%4.457%Search for SEC Filing on Google Icon
11/13/2025Wolf Hill Capital Management LP1,158,197$9.66M0.9%+67.0%2.496%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG279,489$2.33M0.0%-22.4%0.602%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets89,147$0.74M0.0%-25.4%0.192%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.4,916$41K0.0%+613.5%0.011%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC669,513$5.58M0.0%+47.2%1.443%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP2,141,047$17.86M0.0%-10.6%4.614%Search for SEC Filing on Google Icon
11/12/2025Western Standard LLC2,641,351$22.03M6.5%N/A5.692%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC22,520$0.19M0.0%-45.6%0.049%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.2,555,181$21.31M0.0%-0.5%5.507%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.34,555$0.29M0.0%+10.6%0.074%Search for SEC Filing on Google Icon
11/6/2025Prescott Group Capital Management L.L.C.895,977$7.47M0.8%+2.3%1.931%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers67,170$0.56M0.0%-10.3%0.145%Search for SEC Filing on Google Icon
10/31/2025Y Intercept Hong Kong Ltd150,489$1.26M0.0%-57.1%0.324%Search for SEC Filing on Google Icon
10/30/2025VELA Investment Management LLC180,089$1.50M0.4%+46.7%0.388%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC75,415$0.63M0.0%+248.5%0.163%Search for SEC Filing on Google Icon
10/15/2025CWM LLC6,961$58K0.0%+75.7%0.015%Search for SEC Filing on Google Icon
8/15/2025LM Asset IM Inc.6,000$43K0.0%N/A0.013%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Octave Specialty Group logo
Ambac Financial Group, Inc. operates as a financial services holding company. It operates three businesses: Specialty Property and Casualty Insurance, Insurance Distribution, and Legacy Financial Guarantee (LFG) Insurance. The Specialty Property and Casualty Insurance business provides specialty property and casualty program insurance with a focus commercial and personal liability risks. The Insurance Distribution business includes the specialty property and casualty insurance distribution business, which includes managing general agents and underwriters, insurance wholesalers, brokers, and other distribution businesses. The LFG Insurance business offers financial guarantee insurance policies that provide an unconditional and irrevocable guarantee, which protects the holder of a debt obligation against non-payment when due of the principal and interest on the obligations guaranteed. Ambac Financial Group, Inc. was incorporated in 1991 and is headquartered in New York, New York.
Read More on Octave Specialty Group

Today's Range

Now: $5.07
Low: $4.98
High: $5.70

50 Day Range

MA: $5.97
Low: $5.07
High: $6.31

52 Week Range

Now: $5.07
Low: $4.97
High: $12.11

Volume

1,865,715 shs

Average Volume

472,921 shs

Market Capitalization

$222.12 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.86

Who are the company insiders with the largest holdings of Octave Specialty Group?

Octave Specialty Group's top insider shareholders include:
  1. Samuel H Norton (CEO)
  2. Claude Leblanc (CEO)
  3. R Sharon Smith (COO)
  4. David Trick (CFO)
  5. Stephen Michael Ksenak (General Counsel)
  6. R Sharon Smith (VP)
  7. Jeffrey Scott Stein (Director)
  8. Kristi Ann Matus (Director)
Learn More about top insider investors at Octave Specialty Group.

Who are the major institutional investors of Octave Specialty Group?

Octave Specialty Group's top institutional shareholders include:
  1. Western Standard LLC — 5.72%
  2. Wolf Hill Capital Management LP — 4.31%
  3. Dimensional Fund Advisors LP — 3.85%
  4. Gendell Jeffrey L — 3.58%
  5. Geode Capital Management LLC — 2.34%
  6. State Street Corp — 2.15%
Learn More about top institutional investors of Octave Specialty Group stock.

Which institutional investors are buying Octave Specialty Group stock?

During the last quarter, OSG stock was purchased by institutional investors including:
  1. Western Standard LLC
  2. Wolf Hill Capital Management LP
  3. Dimensional Fund Advisors LP
  4. Gendell Jeffrey L
  5. Geode Capital Management LLC
  6. State Street Corp
  7. Prescott Group Capital Management L.L.C.
  8. Nuveen LLC
During the previous year, these company insiders have bought Octave Specialty Group stock:
  1. Samuel H Norton (CEO)
  2. Claude Leblanc (CEO)
  3. R Sharon Smith (COO)
  4. David Trick (CFO)
  5. Stephen Michael Ksenak (General Counsel)
  6. R Sharon Smith (VP)
  7. Jeffrey Scott Stein (Director)
Learn More investors buying Octave Specialty Group stock.