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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 2021

Institutional positions in Octave Specialty Group Inc as of Dec 31, 2021. 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
135
+2 vs. Q3 2021
Shares held
37.3M
+1.29M (+3.6%) vs. Q3 2021
Total value
$598.9M
+$82.7M (+16.0%) vs. Q3 2021
New holders
19
53 more added
Sold out
17
31 more reduced

Compare with Q3 2021: 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 2021: 135 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 2021: $598.9M
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, Q4 2021

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q3 2021.

Institutions holding OSG in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
State of Tennessee, Treasury Department14,769$237.0K0.00%00.0%Unchanged
Delphia (USA) Inc.14,575$234.0K0.25%+14,575New
New York State Teachers Retirement System14,430$232.0K0.00%00.0%Unchanged
Alpine Global Management, LLC12,916$207.0K0.03%−80,000−86.1%Reduced
Arizona State Retirement System12,439$200.0K0.00%−145−1.2%Reduced
Cornerstone Investment Partners, LLC12,485$200.0K0.01%00.0%Unchanged
Metropolitan Life Insurance Co11,709$187.9K0.00%+351+3.1%Added
ProShare Advisors LLC11,392$183.0K0.00%+11,392New
Teachers Retirement System of the State of Kentucky10,700$172.0K0.00%00.0%Unchanged
UBS Group AG10,626$170.0K0.00%−319−2.9%Reduced
Bridgefront Capital, LLC10,458$168.0K0.16%+10,458New
Long Focus Capital Management, LLC10,000$161.0K0.04%+10,000New
Zurcher Kantonalbank (Zurich Cantonalbank)6,830$110.0K0.00%00.0%Unchanged
Royal Bank of Canada6,825$110.0K0.00%+704+11.5%Added
Mutual of America Capital Management LLC6,326$102.0K0.00%+163+2.6%Added
Public Employees Retirement System of Ohio5,533$89.0K0.00%+338+6.5%Added
Ameritas Investment Partners, Inc.3,798$61.0K0.00%00.0%Unchanged
Wolverine Asset Management LLC2,708$43.0K0.00%+2,708New
Aquatic Capital Management LLC2,200$35.0K0.07%+2,200New
Geneos Wealth Management Inc.1,429$22.0K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC877$14.0K0.00%+700+395.5%Added
Eaton Vance Management869$14.0K0.00%+436+100.7%Added
The PNC Financial Services Group, Inc.643$10.0K0.00%−26−3.9%Reduced
Macquarie Group Ltd514$8.00K0.00%00.0%Unchanged
Captrust Financial Advisors308$5.00K0.00%−89−22.4%Reduced
Advisor Group Holdings, Inc.316$5.00K0.00%00.0%Unchanged
Signaturefd, LLC312$5.00K0.00%00.0%Unchanged
Versant Capital Management, Inc155$2.00K0.00%00.0%Unchanged
Quadrant Capital Group LLC101$2.00K0.00%00.0%Unchanged
Repertoire Partners LP100$2.00K0.00%+100New
Lee Financial Co36$1.00K0.00%00.0%Unchanged
Graves-Light Private Wealth Management, Inc.35$1.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC47$1.00K0.00%00.0%Unchanged
Parallel Advisors, LLC34$1.00K0.00%+18+112.5%Added
US Bancorp38$1.00K0.00%+38New
EJF Capital LLC0$00.00%−967,808−100.0%Sold out
Centiva Capital, LP0$00.00%−89,516−100.0%Sold out
Caption Management, LLC0$00.00%−67,700−100.0%Sold out
Wolverine Trading, LLC0$00.00%−29,910−100.0%Sold out
SG Americas Securities, LLC0$00.00%−29,370−100.0%Sold out
Manufacturers Life Insurance Company, The0$00.00%−24,325−100.0%Sold out
Maven Securities LTD0$00.00%−24,061−100.0%Sold out
Millennium Management LLC0$00.00%−23,829−100.0%Sold out
Clear Harbor Asset Management, LLC0$00.00%−21,130−100.0%Sold out
HRT Financial LP0$00.00%−18,145−100.0%Sold out
Everence Capital Management Inc0$00.00%−16,620−100.0%Sold out
HighTower Advisors, LLC0$00.00%−15,326−100.0%Sold out
Jump Financial, LLC0$00.00%−10,800−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−4,950−100.0%Sold out
BDO Wealth Advisors, LLC0$00.00%−2,661−100.0%Sold out
Red Tortoise LLC0$00.00%−180−100.0%Sold out
Meeder Asset Management Inc0$00.00%−84−100.0%Sold out