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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, Q4 2023

Institutional positions in Octave Specialty Group Inc as of Dec 31, 2023. 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
174
+7 vs. Q3 2023
Shares held
38.1M
+1.87M (+5.2%) vs. Q3 2023
Total value
$628.4M
+$189.7M (+43.2%) vs. Q3 2023
New holders
28
56 more added
Sold out
21
60 more reduced

Compare with Q3 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 holdersQ4 2023: 174 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 heldQ4 2023: $628.4M
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, Q4 2023

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q3 2023.

Institutions holding OSG in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Farther Finance Advisors, LLC2$330.00%+2New
Parkside Financial Bank & Trust13$2150.00%−202−94.0%Reduced
Versant Capital Management, Inc19$3130.00%−64−77.1%Reduced
Allworth Financial LP24$3960.00%+24New
Farmers & Merchants Investments Inc31$5110.00%00.0%Unchanged
Rothschild Investment LLC32$5270.00%+32New
Lee Financial Co36$5940.00%00.0%Unchanged
Massmutual Trust Co FSB58$9560.00%00.0%Unchanged
Capital Advisors, Ltd. LLC55$1.00K0.00%00.0%Unchanged
Parallel Advisors, LLC84$1.38K0.00%−22−20.8%Reduced
Barrow Hanley Mewhinney & Strauss LLC150$2.47K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.177$2.92K0.00%+177New
Red Tortoise LLC180$2.97K0.00%00.0%Unchanged
Bessemer Group Inc293$5.00K0.00%00.0%Unchanged
Capital Analysts, LLC325$5.00K0.00%00.0%Unchanged
GAMMA Investing LLC321$5.22K0.00%+321New
Quadrant Capital Group LLC322$5.31K0.00%+44+15.8%Added
Fortitude Family Office, LLC329$5.42K0.00%+329New
Qube Research & Technologies Ltd333$5.49K0.00%−274,462−99.9%Reduced
Quarry LP353$5.82K0.00%−528−59.9%Reduced
Huntington National Bank381$6.28K0.00%+381New
Fifth Third Bancorp429$7.07K0.00%00.0%Unchanged
West Tower Group, LLC479$7.89K0.02%+479New
Wiser Advisor Group LLC500$8.24K0.01%+500New
Robeco Institutional Asset Management B.V.526$8.67K0.00%+526New
Lindbrook Capital, LLC549$9.05K0.00%00.0%Unchanged
AJOVista, LLC626$10.3K0.01%+626New
US Bancorp980$16.1K0.00%+443+82.5%Added
Financial Management Professionals, Inc.1,007$17.0K0.00%+1,007New
Public Employees Retirement System of Ohio1,170$19.3K0.00%−49−4.0%Reduced
Lazard Asset Management LLC1,371$22.0K0.00%−320−18.9%Reduced
Covestor Ltd1,556$26.0K0.02%+890+133.6%Added
KBC Group NV1,666$27.0K0.00%−548−24.8%Reduced
Aquatic Capital Management LLC2,100$35.0K0.00%+2,100New
Metropolitan Life Insurance Co2,437$40.2K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.2,613$43.1K0.00%−234−8.2%Reduced
Gladius Capital Management LP2,638$43.5K0.03%+110+4.4%Added
Nisa Investment Advisors, LLC3,014$49.7K0.00%+200+7.1%Added
Ameritas Investment Partners, Inc.4,583$75.5K0.00%+785+20.7%Added
Allspring Global Investments Holdings, LLC5,397$88.9K0.00%−10,148−65.3%Reduced
Amundi6,006$93.9K0.00%+33+0.6%Added
Advisor Group Holdings, Inc.7,268$119.8K0.00%+2,206+43.6%Added
Zurcher Kantonalbank (Zurich Cantonalbank)8,189$135.0K0.00%00.0%Unchanged
Long Focus Capital Management, LLC10,000$164.8K0.02%00.0%Unchanged
Victory Capital Management Inc10,000$164.8K0.00%+10,000New
Schonfeld Strategic Advisors LLC10,100$166.4K0.00%+10,100New
Cornerstone Investment Partners, LLC10,807$178.1K0.01%+10,807New
Tower Research Capital LLC (TRC)10,809$178.1K0.00%−6,555−37.8%Reduced
Everence Capital Management Inc10,910$180.0K0.01%00.0%Unchanged
State of Wyoming12,111$199.6K0.04%+555+4.8%Added
Teachers Retirement System of the State of Kentucky12,301$202.0K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System12,630$208.1K0.00%00.0%Unchanged
Arizona State Retirement System12,664$208.7K0.00%−240−1.9%Reduced
Deerfield Management Company, L.P. (Series C)12,673$208.9K0.00%+12,673New
Oregon Public Employees Retirement Fund13,198$217.5K0.00%−300−2.2%Reduced
Pathstone Holdings, LLC13,298$219.2K0.00%+13,298New
KLCM Advisors, Inc.14,000$230.7K0.04%00.0%Unchanged
Balyasny Asset Management LLC14,857$244.8K0.00%+14,857New
New York State Common Retirement Fund14,985$247.0K0.00%−3,372−18.4%Reduced
BNP Paribas Arbitrage, SA15,052$248.1K0.00%−4,159−21.6%Reduced
Gsa Capital Partners LLP15,183$250.0K0.02%+15,183New
HRT Financial LP15,859$261.0K0.00%−6,730−29.8%Reduced
Manufacturers Life Insurance Company, The16,185$266.7K0.00%00.0%Unchanged
Royal Bank of Canada16,449$272.0K0.00%+8,827+115.8%Added
Maryland State Retirement & Pension System16,687$275.0K0.01%00.0%Unchanged
Amalgamated Bank17,075$281.0K0.00%−1,096−6.0%Reduced
Envestnet Asset Management Inc18,597$306.5K0.00%00.0%Unchanged
Graham Capital Management, L.P.19,584$322.7K0.01%−671−3.3%Reduced
Interval Partners, LP19,762$325.7K0.01%−1,269−6.0%Reduced
Mirae Asset Global Investments Co., Ltd.19,837$326.9K0.00%00.0%Unchanged
Janus Henderson Group PLC20,019$330.2K0.00%−36−0.2%Reduced
Verition Fund Management LLC20,406$336.3K0.00%−28,465−58.2%Reduced
Comerica Bank20,658$340.4K0.00%−90−0.4%Reduced
Belvedere Trading LLC21,266$350.5K0.03%−12,699−37.4%Reduced
Cresset Asset Management, LLC22,537$371.4K0.00%−448−1.9%Reduced
Mraz, Amerine & Associates, Inc.22,600$372.4K0.08%−4,250−15.8%Reduced
Louisiana State Employees Retirement System22,600$372.4K0.01%−500−2.2%Reduced
SEI Investments Co22,835$376.3K0.00%+6,439+39.3%Added
PDT Partners, LLC23,169$381.8K0.04%−16,445−41.5%Reduced
American International Group, Inc.24,127$397.6K0.00%−210−0.9%Reduced
Truist Financial Corp24,325$400.9K0.00%−785−3.1%Reduced
MetLife Investment Management24,566$404.8K0.00%00.0%Unchanged
Ensign Peak Advisors, Inc25,350$417.8K0.00%00.0%Unchanged
Illinois Municipal Retirement Fund26,645$439.0K0.01%+905+3.5%Added
Franklin Resources Inc27,347$450.7K0.00%−20,992−43.4%Reduced
HighTower Advisors, LLC27,275$454.0K0.00%−152−0.6%Reduced
State of Alaska, Department of Revenue27,804$458.0K0.01%−403−1.4%Reduced
Citigroup Inc28,016$461.7K0.00%+8,882+46.4%Added
UBS Group AG28,204$464.8K0.00%+12,822+83.4%Added
Yousif Capital Management, LLC29,420$484.8K0.01%+6,896+30.6%Added
ExodusPoint Capital Management, LP30,137$497.0K0.01%−765−2.5%Reduced
ClearAlpha Technologies LP30,999$510.9K0.19%+30,999New
Squarepoint Ops LLC33,415$550.7K0.00%−31,942−48.9%Reduced
Healthcare of Ontario Pension Plan Trust Fund33,600$553.7K0.00%00.0%Unchanged
Teacher Retirement System of Texas35,844$591.0K0.00%−11,664−24.6%Reduced
Price T Rowe Associates Inc36,544$603.0K0.00%+849+2.4%Added
Algert Global LLC36,950$608.9K0.02%+36,950New
JPMorgan Chase & Co37,942$625.3K0.00%−27,535−42.1%Reduced
Texas Permanent School Fund38,784$639.2K0.01%+633+1.7%Added
Alliancebernstein L.P.39,620$652.9K0.00%−630−1.6%Reduced