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Octave Specialty Group Inc

OSG
Exchange
NYSE
Industry
Surety Insurance
SEC CIK
0000874501

No open-market purchases or sales by Octave Specialty Group Inc insiders were filed in the last 90 days; 147 institutions reported holding it in 13F filings for Q2 2026, worth $187.6M in total; no superinvestor holds it.

13F holders, Q1 2024

Institutional positions in Octave Specialty Group Inc as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
172
−2 vs. Q4 2023
Shares held
37.9M
−294.2K (−0.8%) vs. Q4 2023
Total value
$591.5M
−$36.9M (−5.9%) vs. Q4 2023
New holders
17
46 more added
Sold out
19
70 more reduced

Compare with Q4 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OSG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2024: 172 institutions
Q1 2021: 140 institutionsQ2 2021: 126 institutionsQ3 2021: 133 institutionsQ4 2021: 135 institutionsQ1 2022: 150 institutionsQ2 2022: 141 institutionsQ3 2022: 154 institutionsQ4 2022: 167 institutionsQ1 2023: 160 institutionsQ2 2023: 160 institutionsQ3 2023: 167 institutionsQ4 2023: 174 institutionsQ1 2024: 172 institutionsQ2 2024: 182 institutionsQ3 2024: 180 institutionsQ4 2024: 181 institutionsQ1 2025: 176 institutionsQ2 2025: 147 institutionsQ3 2025: 130 institutionsQ4 2025: 144 institutionsQ1 2026: 148 institutionsQ2 2026: 147 institutions
Value heldQ1 2024: $591.5M
Q1 2021: $611.7MQ2 2021: $565.0MQ3 2021: $516.2MQ4 2021: $598.9MQ1 2022: $392.1MQ2 2022: $386.6MQ3 2022: $400.7MQ4 2022: $600.4MQ1 2023: $596.2MQ2 2023: $529.6MQ3 2023: $438.7MQ4 2023: $628.4MQ1 2024: $591.5MQ2 2024: $495.9MQ3 2024: $449.6MQ4 2024: $522.4MQ1 2025: $327.5MQ2 2025: $262.5MQ3 2025: $303.6MQ4 2025: $270.0MQ1 2026: $151.4MQ2 2026: $187.6M
Institutions holding OSG and their total value by quarter
QuarterHoldersValue
Q2 2026147$187.6M
Q1 2026148$151.4M
Q4 2025144$270.0M
Q3 2025130$303.6M
Q2 2025147$262.5M
Q1 2025176$327.5M
Q4 2024181$522.4M
Q3 2024180$449.6M
Q2 2024182$495.9M
Q1 2024172$591.5M
Q4 2023174$628.4M
Q3 2023167$438.7M
Q2 2023160$529.6M
Q1 2023160$596.2M
Q4 2022167$600.4M
Q3 2022154$400.7M
Q2 2022141$386.6M
Q1 2022150$392.1M
Q4 2021135$598.9M
Q3 2021133$516.2M
Q2 2021126$565.0M
Q1 2021140$611.7M

Institutions, Q1 2024

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q4 2023.

Institutions holding OSG in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Farther Finance Advisors, LLC1$150.00%−1−50.0%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC8$1250.00%+8New
Parkside Financial Bank & Trust13$2040.00%00.0%Unchanged
Versant Capital Management, Inc19$2970.00%00.0%Unchanged
Allworth Financial LP24$3760.00%00.0%Unchanged
Cornerstone Planning Group LLC30$4410.00%+30New
Umb Bank N A30$4690.00%+30New
Farmers & Merchants Investments Inc31$4850.00%00.0%Unchanged
Rothschild Investment LLC32$5000.00%00.0%Unchanged
Massmutual Trust Co FSB58$9070.00%00.0%Unchanged
Capital Advisors, Ltd. LLC55$1.00K0.00%00.0%Unchanged
Parallel Advisors, LLC84$1.31K0.00%00.0%Unchanged
Barrow Hanley Mewhinney & Strauss LLC150$2.34K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.177$2.77K0.00%00.0%Unchanged
Red Tortoise LLC180$2.81K0.00%00.0%Unchanged
Quadrant Capital Group LLC193$3.02K0.00%−129−40.1%Reduced
Pinnacle Holdings, LLC197$3.08K0.00%+197New
Quarry LP254$3.97K0.00%−99−28.0%Reduced
Catalyst Funds Management Pty Ltd300$4.69K0.00%+300New
Bessemer Group Inc290$5.00K0.00%−3−1.0%Reduced
Capital Analysts, LLC325$5.00K0.00%00.0%Unchanged
Fortitude Family Office, LLC329$5.14K0.00%00.0%Unchanged
GAMMA Investing LLC339$5.30K0.00%+18+5.6%Added
Huntington National Bank381$5.96K0.00%00.0%Unchanged
Fifth Third Bancorp429$6.71K0.00%00.0%Unchanged
Wiser Advisor Group LLC500$7.82K0.01%00.0%Unchanged
Lindbrook Capital, LLC549$8.58K0.00%00.0%Unchanged
US Bancorp624$9.75K0.00%−356−36.3%Reduced
Covestor Ltd778$12.0K0.01%−778−50.0%Reduced
nVerses Capital, LLC800$12.5K0.03%+800New
Public Employees Retirement System of Ohio1,166$18.2K0.00%−4−0.3%Reduced
Lazard Asset Management LLC1,434$22.0K0.00%+63+4.6%Added
Advisor Group Holdings, Inc.2,306$36.0K0.00%−4,962−68.3%Reduced
Metropolitan Life Insurance Co2,437$38.1K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.2,594$40.5K0.00%−19−0.7%Reduced
Tower Research Capital LLC (TRC)3,172$49.6K0.00%−7,637−70.7%Reduced
Ameritas Investment Partners, Inc.4,583$71.6K0.00%00.0%Unchanged
Royal Bank of Canada5,221$82.0K0.00%−11,228−68.3%Reduced
Amundi8,021$112.4K0.00%+2,015+33.5%Added
Caption Management, LLC7,700$120.4K0.01%−117,510−93.9%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)8,189$128.0K0.00%00.0%Unchanged
Federated Hermes, Inc.8,378$130.9K0.00%−67,756−89.0%Reduced
Long Focus Capital Management, LLC10,000$156.3K0.02%00.0%Unchanged
Allspring Global Investments Holdings, LLC10,542$164.8K0.00%+5,145+95.3%Added
Cornerstone Investment Partners, LLC10,807$168.9K0.01%00.0%Unchanged
Everence Capital Management Inc10,910$171.0K0.01%00.0%Unchanged
State of Wyoming11,310$176.8K0.03%−801−6.6%Reduced
Envestnet Asset Management Inc11,431$178.7K0.00%−7,166−38.5%Reduced
Oregon Public Employees Retirement Fund12,098$189.1K0.00%−1,100−8.3%Reduced
Teachers Retirement System of the State of Kentucky12,301$192.0K0.00%00.0%Unchanged
Axq Capital, LP12,374$193.4K0.05%+12,374New
Arizona State Retirement System12,421$194.1K0.00%−243−1.9%Reduced
Pathstone Holdings, LLC13,399$209.4K0.00%+101+0.8%Added
KLCM Advisors, Inc.14,000$218.8K0.03%00.0%Unchanged
Amalgamated Bank14,706$230.0K0.00%−2,369−13.9%Reduced
Maryland State Retirement & Pension System16,687$235.8K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System16,040$248.3K0.00%+3,410+27.0%Added
Walleye Capital LLC16,071$251.2K0.00%−77,543−82.8%Reduced
Natixis Advisors, L.P.16,696$261.0K0.00%+16,696New
Manufacturers Life Insurance Company, The16,861$263.5K0.00%+676+4.2%Added
Mirae Asset Global Investments Co., Ltd.18,835$280.1K0.00%−1,002−5.1%Reduced
Comerica Bank18,768$293.3K0.00%−1,890−9.1%Reduced
Y-Intercept (Hong Kong) Ltd19,189$299.9K0.02%+19,189New
Interval Partners, LP19,292$301.5K0.01%−470−2.4%Reduced
Centiva Capital, LP20,000$312.6K0.02%+20,000New
Janus Henderson Group PLC20,020$312.8K0.00%+10.0%Added
Yousif Capital Management, LLC20,507$320.5K0.00%−8,913−30.3%Reduced
Mraz, Amerine & Associates, Inc.21,100$329.8K0.06%−1,500−6.6%Reduced
Squarepoint Ops LLC21,276$332.5K0.00%−12,139−36.3%Reduced
MetLife Investment Management22,132$345.9K0.00%−2,434−9.9%Reduced
Louisiana State Employees Retirement System22,400$350.1K0.01%−200−0.9%Reduced
Cresset Asset Management, LLC22,523$352.0K0.00%−14−0.1%Reduced
State of Tennessee, Treasury Department22,523$352.0K0.00%−34,612−60.6%Reduced
Caxton Associates LP22,792$356.2K0.02%−43,411−65.6%Reduced
Verition Fund Management LLC23,299$364.2K0.00%+2,893+14.2%Added
BNP Paribas Arbitrage, SA23,370$365.3K0.00%+8,318+55.3%Added
American International Group, Inc.23,913$373.8K0.00%−214−0.9%Reduced
Ensign Peak Advisors, Inc24,133$377.2K0.00%−1,217−4.8%Reduced
Truist Financial Corp24,325$380.2K0.00%00.0%Unchanged
New York State Common Retirement Fund25,689$401.5K0.00%+10,704+71.4%Added
HighTower Advisors, LLC25,834$411.0K0.00%−1,441−5.3%Reduced
Wolverine Trading, LLC26,301$411.1K0.00%−16,596−38.7%Reduced
Franklin Resources Inc27,347$427.4K0.00%00.0%Unchanged
Algert Global LLC27,460$429.2K0.02%−9,490−25.7%Reduced
State of Alaska, Department of Revenue27,533$430.0K0.00%−271−1.0%Reduced
Illinois Municipal Retirement Fund27,952$437.0K0.01%+1,307+4.9%Added
Trexquant Investment LP28,074$438.8K0.01%+28,074New
SEI Investments Co29,714$464.5K0.00%+6,879+30.1%Added
ClearAlpha Technologies LP30,600$478.3K0.20%−399−1.3%Reduced
Citigroup Inc31,000$484.5K0.00%+2,984+10.7%Added
UBS Group AG34,611$541.0K0.00%+6,407+22.7%Added
State of Wisconsin Investment Board35,242$550.8K0.00%−9,355−21.0%Reduced
ExodusPoint Capital Management, LP37,388$584.0K0.01%+7,251+24.1%Added
Dark Forest Capital Management LP38,083$595.2K0.10%+38,083New
LPL Financial LLC38,350$599.4K0.00%−19,648−33.9%Reduced
Price T Rowe Associates Inc38,405$601.0K0.00%+1,861+5.1%Added
Thrivent Financial for Lutherans39,208$613.0K0.00%−1,064−2.6%Reduced
Texas Permanent School Fund39,554$618.2K0.00%+770+2.0%Added
Alliancebernstein L.P.39,620$619.3K0.00%00.0%Unchanged
Great West Life Assurance Co40,202$628.0K0.00%00.0%Unchanged