Skip to main content

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 2021

Institutional positions in Octave Specialty Group Inc as of Mar 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
140
No complete 13F data for Q4 2020
Shares held
36.5M
No complete 13F data for Q4 2020
Total value
$611.7M
No complete 13F data for Q4 2020

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 2021: 140 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 2021: $611.7M
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 2021

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding OSG in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
D. E. Shaw & Co., Inc.114,710$1.92M0.00%––
Nomura Holdings Inc125,000$2.10M0.02%––
Healthcare of Ontario Pension Plan Trust Fund126,100$2.11M0.01%––
Legal & General Group Plc127,792$2.14M0.00%––
Bank of America Corp131,335$2.20M0.00%––
Quinn Opportunity Partners LLC136,701$2.29M0.15%––
Wells Fargo & Company147,653$2.47M0.00%––
Jacobs Asset Management, LLC150,000$2.51M0.99%––
Credit Suisse AG151,651$2.54M0.00%––
Rhumbline Advisers153,162$2.56M0.00%––
Public Sector Pension Investment Board155,451$2.60M0.02%––
Invesco Ltd.161,400$2.70M0.00%––
State of New Jersey Common Pension Fund D162,373$2.72M0.01%––
Nuveen Asset Management, LLC202,059$3.38M0.00%––
Philadelphia Financial Management of San Francisco, LLC239,807$4.01M1.22%––
Ameriprise Financial Inc247,894$4.15M0.00%––
Harbor Advisors LLC261,382$4.38M0.97%––
Principal Financial Group Inc315,131$5.28M0.00%––
Hotchkis & Wiley Capital Management LLC381,917$6.39M0.02%––
Bank of New York Mellon Corp461,696$7.73M0.00%––
Charles Schwab Investment Management Inc520,259$8.71M0.00%––
JPMorgan Chase & Co523,657$8.77M0.00%––
Northern Trust Corp535,654$8.97M0.00%––
Deutsche Bank AG565,280$9.46M0.01%––
Citigroup Inc722,416$12.1M0.01%––
Geode Capital Management, LLC730,850$12.2M0.00%––
Barclays PLC731,967$12.3M0.01%––
Bracebridge Capital, LLC799,234$13.4M6.65%––
Assenagon Asset Management S.A.834,281$14.0M0.07%––
Goldman Sachs Group Inc845,501$14.2M0.00%––
CQS (US), LLC1,000,000$16.7M1.11%––
Boussard & Gavaudan Investment Management LLP1,081,731$18.3M1.78%––
EJF Capital LLC1,375,073$23.0M1.66%––
State Street Corp1,430,638$23.9M0.00%––
Morgan Stanley1,454,848$24.4M0.00%––
Dimensional Fund Advisors LP1,762,134$29.5M0.01%––
Arctis Global LLC1,771,563$29.7M4.29%––
FMR LLC2,060,260$34.5M0.00%––
Vanguard Group Inc4,676,009$78.3M0.00%––
BlackRock Inc.6,618,132$110.8M0.00%––