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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, Q2 2024

Institutional positions in Octave Specialty Group Inc as of Jun 30, 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
182
+11 vs. Q1 2024
Shares held
38.7M
+936.2K (+2.5%) vs. Q1 2024
Total value
$495.9M
−$93.9M (−15.9%) vs. Q1 2024
New holders
31
64 more added
Sold out
20
60 more reduced

1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2024: 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 holdersQ2 2024: 182 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 heldQ2 2024: $495.9M
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, Q2 2024

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q1 2024.

Institutions holding OSG in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Advisor Group Holdings, Inc.4$510.00%−2,302−99.8%Reduced
GWM Advisors LLC5$640.00%+5New
Parkside Financial Bank & Trust10$1290.00%−3−23.1%Reduced
Versant Capital Management, Inc19$2440.00%00.0%Unchanged
Allworth Financial LP24$3010.00%00.0%Unchanged
Principal Securities, Inc.26$3330.00%+26New
Farmers & Merchants Investments Inc31$3970.00%00.0%Unchanged
Umb Bank N A34$4360.00%+4+13.3%Added
Massmutual Trust Co FSB58$7440.00%00.0%Unchanged
Rothschild Investment LLC62$7950.00%+30+93.8%Added
Farther Finance Advisors, LLC75$9380.00%+74+7,400.0%Added
Capital Advisors, Ltd. LLC55$1.00K0.00%00.0%Unchanged
Parallel Advisors, LLC84$1.08K0.00%00.0%Unchanged
Barrow Hanley Mewhinney & Strauss LLC150$1.92K0.00%00.0%Unchanged
CWM, LLC127$2.00K0.00%+127New
DiNuzzo Private Wealth, Inc.177$2.27K0.00%00.0%Unchanged
Red Tortoise LLC180$2.31K0.00%00.0%Unchanged
Smartleaf Asset Management LLC188$2.40K0.00%+188New
Pinnacle Holdings, LLC197$2.53K0.00%00.0%Unchanged
Assetmark, Inc219$2.81K0.00%−94,342−99.8%Reduced
Bessemer Group Inc290$4.00K0.00%00.0%Unchanged
Capital Analysts, LLC325$4.00K0.00%00.0%Unchanged
Fortitude Family Office, LLC329$4.22K0.00%00.0%Unchanged
Catalyst Funds Management Pty Ltd400$5.13K0.00%+100+33.3%Added
Huntington National Bank401$5.14K0.00%+20+5.2%Added
Fifth Third Bancorp455$5.83K0.00%+26+6.1%Added
Wiser Advisor Group LLC500$6.41K0.01%00.0%Unchanged
Lindbrook Capital, LLC549$7.04K0.00%00.0%Unchanged
US Bancorp647$8.29K0.00%+23+3.7%Added
GAMMA Investing LLC797$10.2K0.00%+458+135.1%Added
Public Employees Retirement System of Ohio1,138$14.6K0.00%−28−2.4%Reduced
Quadrant Capital Group LLC1,540$19.7K0.00%+1,347+697.9%Added
Innealta Capital, LLC1,716$22.0K0.01%+1,716New
Quarry LP2,364$30.3K0.01%+2,110+830.7%Added
The PNC Financial Services Group, Inc.2,704$34.7K0.00%+110+4.2%Added
Federated Hermes, Inc.3,317$42.5K0.00%−5,061−60.4%Reduced
Ameritas Investment Partners, Inc.4,583$58.8K0.00%00.0%Unchanged
nVerses Capital, LLC5,000$64.1K0.04%+4,200+525.0%Added
Amundi6,293$78.0K0.00%−1,728−21.5%Reduced
Caption Management, LLC8,428$108.0K0.01%+728+9.5%Added
Tower Research Capital LLC (TRC)9,095$116.6K0.00%+5,923+186.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)9,826$126.0K0.00%+1,637+20.0%Added
Long Focus Capital Management, LLC10,000$128.2K0.01%00.0%Unchanged
Cornerstone Investment Partners, LLC10,002$128.2K0.01%−805−7.4%Reduced
Interval Partners, LP10,161$130.3K0.00%−9,131−47.3%Reduced
UBS Group AG10,979$140.8K0.00%−23,632−68.3%Reduced
Oregon Public Employees Retirement Fund10,998$141.0K0.00%−1,100−9.1%Reduced
State of Tennessee, Treasury Department12,291$157.6K0.00%−10,232−45.4%Reduced
Teachers Retirement System of the State of Kentucky12,301$158.0K0.00%00.0%Unchanged
Everence Capital Management Inc10,910$158.0K0.01%00.0%Unchanged
Counterpoint Mutual Funds LLC12,601$161.5K0.04%+12,601New
State Board of Administration of Florida Retirement System12,630$161.9K0.00%−3,410−21.3%Reduced
Arizona State Retirement System12,661$162.3K0.00%+240+1.9%Added
Dynamic Technology Lab Private Ltd13,276$170.0K0.02%+13,276New
Amalgamated Bank13,329$171.0K0.00%−1,377−9.4%Reduced
Pathstone Holdings, LLC13,497$173.0K0.00%+98+0.7%Added
Centiva Capital, LP13,890$178.1K0.01%−6,110−30.6%Reduced
KLCM Advisors, Inc.14,000$179.5K0.02%00.0%Unchanged
Dark Forest Capital Management LP14,007$179.6K0.03%−24,076−63.2%Reduced
Trexquant Investment LP14,075$180.4K0.00%−13,999−49.9%Reduced
Bank of Montreal14,839$190.2K0.00%+14,839New
State of Wyoming15,551$199.4K0.03%+4,241+37.5%Added
Maryland State Retirement & Pension System15,768$202.1K0.00%−919−5.5%Reduced
Intech Investment Management LLC16,064$205.9K0.00%+16,064New
Mraz, Amerine & Associates, Inc.16,600$212.8K0.04%−4,500−21.3%Reduced
GTS Securities LLC16,745$214.7K0.00%−47,272−73.8%Reduced
Comerica Bank16,884$216.5K0.00%−1,884−10.0%Reduced
Versor Investments LP17,026$218.3K0.04%+17,026New
Manufacturers Life Insurance Company, The17,300$221.8K0.00%+439+2.6%Added
Quadrature Capital Ltd17,518$224.2K0.00%+17,518New
New York State Common Retirement Fund17,973$230.4K0.00%−7,716−30.0%Reduced
Fox Run Management, L.L.C.18,017$231.0K0.04%+18,017New
Yousif Capital Management, LLC18,240$233.8K0.00%−2,267−11.1%Reduced
Teacher Retirement System of Texas18,998$244.0K0.00%+18,998New
Janus Henderson Group PLC19,792$253.1K0.00%−228−1.1%Reduced
Royal Bank of Canada20,964$268.0K0.00%+15,743+301.5%Added
Schonfeld Strategic Advisors LLC21,102$270.5K0.00%+21,102New
BNP Paribas Arbitrage, SA22,411$287.3K0.00%−959−4.1%Reduced
Mirae Asset Global ETFs Holdings Ltd.22,778$292.0K0.00%+22,778New
Louisiana State Employees Retirement System22,800$292.3K0.01%+400+1.8%Added
SEI Investments Co22,852$293.0K0.00%−6,862−23.1%Reduced
Cresset Asset Management, LLC23,337$299.2K0.00%+814+3.6%Added
AQR Capital Management LLC23,502$301.3K0.00%−228,642−90.7%Reduced
CI Private Wealth, LLC23,631$303.0K0.00%+23,631New
Balyasny Asset Management LLC23,750$304.5K0.00%+23,750New
Ensign Peak Advisors, Inc24,133$309.4K0.00%00.0%Unchanged
Sherbrooke Park Advisers LLC24,155$309.7K0.05%+24,155New
Truist Financial Corp24,325$311.8K0.00%00.0%Unchanged
MetLife Investment Management24,569$315.0K0.00%+2,437+11.0%Added
Corebridge Financial, Inc.25,247$323.7K0.00%+25,247New
Caxton Associates LP25,277$324.1K0.01%+2,485+10.9%Added
HighTower Advisors, LLC25,322$325.0K0.00%−512−2.0%Reduced
Voloridge Investment Management, LLC26,036$333.8K0.00%+26,036New
ClearAlpha Technologies LP26,339$337.7K0.13%−4,261−13.9%Reduced
State of Alaska, Department of Revenue26,553$340.0K0.00%−980−3.6%Reduced
Algert Global LLC27,653$354.5K0.01%+193+0.7%Added
Shay Capital LLC30,000$384.6K0.11%−40,000−57.1%Reduced
Quantbot Technologies LP33,524$429.8K0.02%+33,524New
Illinois Municipal Retirement Fund33,861$434.1K0.01%+5,909+21.1%Added
Royce & Associates LP36,919$473.3K0.00%−50,010−57.5%Reduced