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 2025
Institutional positions in Octave Specialty Group Inc as of Mar 31, 2025. 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
- 176
- −2 vs. Q4 2024
- Shares held
- 37.5M
- −3.07M (−7.6%) vs. Q4 2024
- Total value
- $327.5M
- −$183.8M (−35.9%) vs. Q4 2024
- New holders
- 35
- 53 more added
- Sold out
- 37
- 59 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 147 | $187.6M |
| Q1 2026 | 148 | $151.4M |
| Q4 2025 | 144 | $270.0M |
| Q3 2025 | 130 | $303.6M |
| Q2 2025 | 147 | $262.5M |
| Q1 2025 | 176 | $327.5M |
| Q4 2024 | 181 | $522.4M |
| Q3 2024 | 180 | $449.6M |
| Q2 2024 | 182 | $495.9M |
| Q1 2024 | 172 | $591.5M |
| Q4 2023 | 174 | $628.4M |
| Q3 2023 | 167 | $438.7M |
| Q2 2023 | 160 | $529.6M |
| Q1 2023 | 160 | $596.2M |
| Q4 2022 | 167 | $600.4M |
| Q3 2022 | 154 | $400.7M |
| Q2 2022 | 141 | $386.6M |
| Q1 2022 | 150 | $392.1M |
| Q4 2021 | 135 | $598.9M |
| Q3 2021 | 133 | $516.2M |
| Q2 2021 | 126 | $565.0M |
| Q1 2021 | 140 | $611.7M |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cornerstone Investment Partners, LLC | 0 | $0 | 0.00% | −10,323−100.0% | Sold out |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 0 | $0 | 0.00% | −10,128−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −10,076−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −8,330−100.0% | Sold out |
| CI Private Wealth, LLC | 0 | $0 | 0.00% | −28,220−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −1,663−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −1,257−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −375−100.0% | Sold out |
| Hexagon Capital Partners LLC | 0 | $0 | 0.00% | −153−100.0% | Sold out |
| Capital Advisors, Ltd. LLC | 0 | $0 | 0.00% | −76−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −61−100.0% | Sold out |
| Umb Bank N A | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Caxton Associates LP | – | – | – | – | Not filed |
| Legacy Investment Solutions, LLC | – | – | – | – | Not filed |