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 2026
Institutional positions in Octave Specialty Group Inc as of Jun 30, 2026. 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
- 147
- +1 vs. Q1 2026
- Shares held
- 30.1M
- −2.14M (−6.7%) vs. Q1 2026
- Total value
- $187.6M
- +$37.7M (+25.1%) vs. Q1 2026
- New holders
- 36
- 51 more added
- Sold out
- 35
- 40 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Allied Private Wealth LLC | 8 | $48 | 0.00% | +8 | New |
| Fortitude Family Office, LLC | 8 | $50 | 0.00% | +8 | New |
| JPL Wealth Management, LLC | 9 | $57 | 0.00% | +9 | New |
| SBI Securities Co., Ltd. | 10 | $62 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 19 | $119 | 0.00% | +19 | New |
| Basecamp Wealth Advisors LLC | 32 | $200 | 0.00% | −50−61.0% | Reduced |
| IFP Advisors, Inc | 36 | $225 | 0.00% | +2+5.9% | Added |
| Bogart Wealth, LLC | 77 | $480 | 0.00% | +77 | New |
| UMA Financial Services, Inc. | 86 | $537 | 0.00% | +86 | New |
| Advisors Asset Management, Inc. | 98 | $612 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 108 | $674 | 0.00% | +108 | New |
| Steward Partners Investment Advisory, LLC | 116 | $724 | 0.00% | +116 | New |
| Quarry LP | 123 | $768 | 0.00% | +123 | New |
| Rothschild Investment LLC | 124 | $774 | 0.00% | +92+287.5% | Added |
| Transamerica Financial Advisors, Inc. | 150 | $936 | 0.00% | +139+1,263.6% | Added |
| DiNuzzo Private Wealth, Inc. | 177 | $1.10K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 196 | $1.22K | 0.00% | −136−41.0% | Reduced |
| Fifth Third Bancorp | 243 | $1.52K | 0.00% | +204+523.1% | Added |
| Essential Partners LLC | 263 | $1.64K | 0.00% | +153+139.1% | Added |
| Capital Analysts, LLC | 325 | $2.00K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 360 | $2.25K | 0.00% | +123+51.9% | Added |
| Zions Bancorporation, National Association | 451 | $2.81K | 0.00% | +451 | New |
| Wiser Advisor Group LLC | 500 | $3.12K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 546 | $3.41K | 0.00% | −1,687−75.5% | Reduced |
| Continuum Advisory, LLC | 556 | $3.47K | 0.00% | +556 | New |
| Farther Finance Advisors, LLC | 752 | $4.69K | 0.00% | −3,100−80.5% | Reduced |
| Harbor Capital Advisors, Inc. | 751 | $5.00K | 0.00% | −468−38.4% | Reduced |
| Sterling Capital Management LLC | 834 | $5.20K | 0.00% | −457−35.4% | Reduced |
| Nisa Investment Advisors, LLC | 970 | $6.05K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 1,019 | $6.36K | 0.00% | +985+2,897.1% | Added |
| The PNC Financial Services Group, Inc. | 1,438 | $8.97K | 0.00% | +1,086+308.5% | Added |
| Royal Bank of Canada | 1,911 | $12.0K | 0.00% | +1,894+11,141.2% | Added |
| Advisor Group Holdings, Inc. | 2,186 | $13.6K | 0.00% | +242+12.4% | Added |
| Tower Research Capital LLC (TRC) | 2,650 | $16.5K | 0.00% | −1,499−36.1% | Reduced |
| SRS Capital Advisors, Inc. | 3,259 | $20.3K | 0.00% | +3,259 | New |
| Ameritas Investment Partners, Inc. | 3,648 | $22.8K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 3,839 | $24.0K | 0.00% | 00.0% | Unchanged |
| Persistent Asset Partners Ltd | 4,036 | $25.2K | 0.01% | +4,036 | New |
| First Horizon Corp | 4,776 | $29.8K | 0.00% | +4,776 | New |
| Cullen/Frost Bankers, Inc. | 7,140 | $44.6K | 0.00% | +7,140 | New |
| FMR LLC | 8,156 | $50.9K | 0.00% | +7,162+720.5% | Added |
| Versant Capital Management, Inc | 8,360 | $52.2K | 0.00% | +8,360 | New |
| Chicago Partners Investment Group LLC | 10,395 | $57.6K | 0.00% | +10,395 | New |
| Gaddis Premier Wealth Advisors LLC | 10,000 | $62.4K | 0.04% | +10,000 | New |
| Mirabella Financial Services LLP | 10,069 | $62.8K | 0.01% | +10,069 | New |
| New York State Common Retirement Fund | 10,073 | $62.9K | 0.00% | 00.0% | Unchanged |
| Franklin Resources Inc | 10,628 | $66.3K | 0.00% | 00.0% | Unchanged |
| Axq Capital, LP | 10,652 | $66.5K | 0.01% | −4,784−31.0% | Reduced |
| McGlone Suttner Wealth Management, Inc. | 10,911 | $68.1K | 0.01% | +10,911 | New |
| Crown Wealth Group, LLC | 11,162 | $69.7K | 0.02% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 11,203 | $70.0K | 0.00% | −7,614−40.5% | Reduced |
| Jump Financial, LLC | 11,644 | $72.7K | 0.00% | −58,954−83.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 11,825 | $73.8K | 0.00% | 00.0% | Unchanged |
| Ieq Capital, LLC | 12,203 | $76.1K | 0.00% | +12,203 | New |
| D. E. Shaw & Co., Inc. | 12,207 | $76.2K | 0.00% | −657−5.1% | Reduced |
| CI Private Wealth, LLC | 12,270 | $76.6K | 0.00% | +12,270 | New |
| Manufacturers Life Insurance Company, The | 12,414 | $77.5K | 0.00% | +1,582+14.6% | Added |
| Atria Investments LLC | 12,473 | $77.8K | 0.00% | +12,473 | New |
| State Board of Administration of Florida Retirement System | 12,630 | $78.8K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 14,061 | $84.6K | 0.00% | +14,061 | New |
| Metis Global Partners, LLC | 14,334 | $89.4K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 18,657 | $116.4K | 0.00% | −98,254−84.0% | Reduced |
| JPMorgan Chase & Co | 18,668 | $118.7K | 0.00% | −249,766−93.0% | Reduced |
| Inscription Capital, LLC | 19,037 | $118.8K | 0.01% | +19,037 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 19,044 | $118.8K | 0.00% | +771+4.2% | Added |
| Citigroup Inc | 19,080 | $119.1K | 0.00% | +6,831+55.8% | Added |
| Impact Capital Partners LLC | 19,516 | $121.8K | 0.03% | +19,516 | New |
| Millennium Management LLC | 19,610 | $122.4K | 0.00% | −115,478−85.5% | Reduced |
| Gator Capital Management, LLC | 20,935 | $130.6K | 0.03% | −500−2.3% | Reduced |
| Mraz, Amerine & Associates, Inc. | 21,450 | $133.8K | 0.02% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 21,554 | $134.5K | 0.00% | +13,254+159.7% | Added |
| Group One Trading, L.P. | 22,576 | $140.9K | 0.00% | +10,628+89.0% | Added |
| KLCM Advisors, Inc. | 23,900 | $149.1K | 0.01% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 24,244 | $151.3K | 0.00% | +24,244 | New |
| MetLife Investment Management | 24,501 | $152.9K | 0.00% | +17,082+230.2% | Added |
| Engineers Gate Manager LP | 25,500 | $159.1K | 0.00% | −74,916−74.6% | Reduced |
| Cerity Partners LLC | 26,828 | $167.4K | 0.00% | +26,828 | New |
| Mercer Global Advisors Inc | 29,288 | $182.8K | 0.00% | +15,784+116.9% | Added |
| State of Wisconsin Investment Board | 30,044 | $187.5K | 0.00% | +6,900+29.8% | Added |
| Mariner, LLC | 30,584 | $190.8K | 0.00% | +30,584 | New |
| Alliancebernstein L.P. | 42,630 | $198.2K | 0.00% | +5,100+13.6% | Added |
| Deutsche Bank AG | 40,359 | $251.8K | 0.00% | +9,769+31.9% | Added |
| Lazard Asset Management LLC | 43,331 | $270.4K | 0.00% | +14,111+48.3% | Added |
| Los Angeles Capital Management LLC | 47,883 | $298.8K | 0.00% | +47,735+32,253.4% | Added |
| Barclays PLC | 49,637 | $309.7K | 0.00% | −7,332−12.9% | Reduced |
| Rhumbline Advisers | 53,481 | $333.7K | 0.00% | −66−0.1% | Reduced |
| Empowered Funds, LLC | 54,004 | $337.0K | 0.00% | −60,000−52.6% | Reduced |
| State of Wyoming | 55,733 | $347.8K | 0.04% | +26,949+93.6% | Added |
| FJ Capital Management LLC | 57,937 | $361.5K | 0.05% | +57,937 | New |
| Ameriprise Financial Inc | 58,504 | $365.1K | 0.00% | −56,541−49.1% | Reduced |
| GWN Securities Inc. | 60,295 | $376.2K | 0.06% | +23,891+65.6% | Added |
| Public Employees Retirement System of Ohio | 61,305 | $382.5K | 0.00% | −7,500−10.9% | Reduced |
| Vanguard Global Advisers, LLC | 63,120 | $393.9K | 0.00% | +44,469+238.4% | Added |
| Man Group plc | 66,579 | $415.5K | 0.00% | +66,579 | New |
| American Century Companies Inc | 91,000 | $567.8K | 0.00% | −29,540−24.5% | Reduced |
| Clifford Capital Partners LLC | 107,676 | $671.9K | 0.09% | +107,676 | New |
| SEI Investments Co | 109,389 | $682.6K | 0.00% | −46,689−29.9% | Reduced |
| HSBC Holdings PLC | 114,498 | $723.5K | 0.00% | +12,068+11.8% | Added |
| Price T Rowe Associates Inc | 116,612 | $728.0K | 0.00% | +14,647+14.4% | Added |
| Wells Fargo & Company | 116,707 | $728.3K | 0.00% | +61,383+111.0% | Added |