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 2024
Institutional positions in Octave Specialty Group Inc as of Dec 31, 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
- 181
- +1 vs. Q3 2024
- Shares held
- 41.5M
- +1.22M (+3.0%) vs. Q3 2024
- Total value
- $522.4M
- +$72.7M (+16.2%) vs. Q3 2024
- New holders
- 24
- 68 more added
- Sold out
- 23
- 55 more reduced
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,960,513 | $100.7M | 0.00% | +248,771+3.2% | Added |
| Vanguard Group Inc | 3,216,048 | $40.7M | 0.00% | −902,375−21.9% | Reduced |
| Dimensional Fund Advisors LP | 2,706,151 | $34.2M | 0.01% | −98,249−3.5% | Reduced |
| Repertoire Partners LP | 2,161,630 | $27.3M | 58.93% | +97,885+4.7% | Added |
| State Street Corp | 1,794,042 | $22.7M | 0.00% | +140,498+8.5% | Added |
| FMR LLC | 1,615,030 | $20.4M | 0.00% | −117,156−6.8% | Reduced |
| Goldman Sachs Group Inc | 1,185,700 | $15.0M | 0.00% | +492,208+71.0% | Added |
| Geode Capital Management, LLC | 1,046,510 | $13.2M | 0.00% | +17,554+1.7% | Added |
| Wolf Hill Capital Management, LP | 1,000,003 | $12.7M | 1.02% | +1,000,003 | New |
| Bain Capital Credit, LP | 1,108,012 | $11.9M | 2.65% | 00.0% | Unchanged |
| American Century Companies Inc | 929,345 | $11.8M | 0.01% | +34,861+3.9% | Added |
| Hotchkis & Wiley Capital Management LLC | 837,650 | $10.6M | 0.04% | +92,900+12.5% | Added |
| Nuveen Asset Management, LLC | 824,357 | $10.4M | 0.00% | +326,149+65.5% | Added |
| Susquehanna International Group, LLP | 754,965 | $9.55M | 0.01% | +381,822+102.3% | Added |
| Deutsche Bank AG | 675,133 | $8.54M | 0.00% | −14,697−2.1% | Reduced |
| Portolan Capital Management, LLC | 589,437 | $7.46M | 0.50% | +589,437 | New |
| Bracebridge Capital, LLC | 579,234 | $7.33M | 0.72% | 00.0% | Unchanged |
| Northern Trust Corp | 536,486 | $6.79M | 0.00% | +63,430+13.4% | Added |
| Gendell Jeffrey L | 527,538 | $6.67M | 0.21% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 505,126 | $6.39M | 0.00% | −48,273−8.7% | Reduced |
| Morgan Stanley | 497,955 | $6.30M | 0.00% | −244,958−33.0% | Reduced |
| Western Standard LLC | 453,530 | $5.74M | 3.82% | +177,567+64.3% | Added |
| D. E. Shaw & Co., Inc. | 431,135 | $5.45M | 0.01% | −44,326−9.3% | Reduced |
| Barclays PLC | 429,861 | $5.44M | 0.00% | +53,759+14.3% | Added |
| Citadel Advisors LLC | 379,010 | $4.79M | 0.00% | −350,221−48.0% | Reduced |
| Invesco Ltd. | 375,513 | $4.75M | 0.00% | +58,630+18.5% | Added |
| Jane Street Group, LLC | 316,176 | $4.00M | 0.01% | +78,457+33.0% | Added |
| HSBC Holdings PLC | 312,282 | $3.91M | 0.00% | −16,681−5.1% | Reduced |
| Bank of New York Mellon Corp | 296,219 | $3.75M | 0.00% | −82,559−21.8% | Reduced |
| Bridgeway Capital Management, LLC | 291,633 | $3.69M | 0.08% | +8,784+3.1% | Added |
| JPMorgan Chase & Co | 276,762 | $3.50M | 0.00% | +22,690+8.9% | Added |
| Caption Management, LLC | 272,477 | $3.45M | 0.14% | +179,648+193.5% | Added |
| Marshall Wace, LLP | 266,939 | $3.38M | 0.00% | −97,635−26.8% | Reduced |
| Norges Bank | 263,100 | $3.33M | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 235,649 | $2.98M | 0.00% | +18,553+8.5% | Added |
| Third Avenue Management LLC | 230,416 | $2.91M | 0.56% | +230,416 | New |
| Principal Financial Group Inc | 229,954 | $2.91M | 0.00% | +6,589+2.9% | Added |
| Millennium Management LLC | 209,592 | $2.65M | 0.00% | −66,065−24.0% | Reduced |
| Harbor Advisors LLC | 196,382 | $2.48M | 0.39% | 00.0% | Unchanged |
| Prescott Group Capital Management, L.L.C. | 194,902 | $2.47M | 0.33% | 00.0% | Unchanged |
| Bank of America Corp | 194,061 | $2.45M | 0.00% | +121,228+166.4% | Added |
| UBS Asset Management Americas Inc | 194,034 | $2.45M | 0.00% | +37,067+23.6% | Added |
| Public Sector Pension Investment Board | 190,804 | $2.41M | 0.01% | +18,148+10.5% | Added |
| Empowered Funds, LLC | 181,633 | $2.30M | 0.03% | +8,784+5.1% | Added |
| Russell Investments Group, Ltd. | 170,536 | $2.16M | 0.00% | −82,472−32.6% | Reduced |
| Arrowstreet Capital, Limited Partnership | 167,172 | $2.11M | 0.00% | −78,248−31.9% | Reduced |
| Tudor Investment Corp Et Al | 164,868 | $2.09M | 0.02% | −2,058−1.2% | Reduced |
| Exchange Traded Concepts, LLC | 164,474 | $2.08M | 0.04% | +6,760+4.3% | Added |
| Rhumbline Advisers | 140,999 | $1.78M | 0.00% | +8,495+6.4% | Added |
| Two Sigma Investments, LP | 132,295 | $1.67M | 0.00% | +38,540+41.1% | Added |
| Renaissance Technologies LLC | 124,200 | $1.57M | 0.00% | −165,300−57.1% | Reduced |
| Legal & General Group Plc | 122,939 | $1.56M | 0.00% | −657−0.5% | Reduced |
| Squarepoint Ops LLC | 120,848 | $1.53M | 0.00% | −130,801−52.0% | Reduced |
| HRT Financial LP | 107,557 | $1.36M | 0.01% | −37,968−26.1% | Reduced |
| Walleye Capital LLC | 99,425 | $1.26M | 0.01% | +81,327+449.4% | Added |
| Swiss National Bank | 93,300 | $1.18M | 0.00% | +4,100+4.6% | Added |
| UBS Group AG | 89,528 | $1.13M | 0.00% | +70,333+366.4% | Added |
| Algert Global LLC | 88,469 | $1.12M | 0.03% | +60,816+219.9% | Added |
| Great West Life Assurance Co | 77,655 | $981.0K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 74,335 | $940.3K | 0.00% | −14,414−16.2% | Reduced |
| Royce & Associates LP | 72,934 | $922.6K | 0.01% | +36,015+97.6% | Added |
| Wells Fargo & Company | 71,421 | $903.5K | 0.00% | −27,102−27.5% | Reduced |
| Citigroup Inc | 70,618 | $893.3K | 0.00% | +12,975+22.5% | Added |
| VELA Investment Management, LLC | 62,584 | $791.7K | 0.27% | +62,584 | New |
| BNP Paribas Arbitrage, SA | 60,968 | $771.2K | 0.00% | +29,484+93.6% | Added |
| Nebula Research & Development LLC | 54,177 | $685.3K | 0.08% | −21,031−28.0% | Reduced |
| Walleye Trading LLC | 52,452 | $663.5K | 0.01% | +28,401+118.1% | Added |
| Graham Capital Management, L.P. | 51,489 | $651.3K | 0.02% | +34,128+196.6% | Added |
| Caxton Associates LP | 48,648 | $615.4K | 0.02% | +790+1.7% | Added |
| Prudential Financial Inc | 47,670 | $603.0K | 0.00% | −124,000−72.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 47,306 | $598.4K | 0.00% | +47,306 | New |
| Price T Rowe Associates Inc | 46,835 | $593.0K | 0.00% | +7,042+17.7% | Added |
| Engineers Gate Manager LP | 46,833 | $592.4K | 0.01% | +29,405+168.7% | Added |
| New York State Teachers Retirement System | 44,930 | $568.0K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 44,277 | $560.1K | 0.00% | +1,651+3.9% | Added |
| Cubist Systematic Strategies, LLC | 43,808 | $554.2K | 0.01% | −368,366−89.4% | Reduced |
| Intech Investment Management LLC | 43,629 | $551.9K | 0.01% | +19,921+84.0% | Added |
| Alliancebernstein L.P. | 41,240 | $521.7K | 0.00% | +15,200+58.4% | Added |
| Quantbot Technologies LP | 40,434 | $511.5K | 0.02% | −9,465−19.0% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 38,850 | $491.5K | 0.03% | +7,216+22.8% | Added |
| Thrivent Financial for Lutherans | 36,671 | $464.0K | 0.00% | −584−1.6% | Reduced |
| HighTower Advisors, LLC | 35,422 | $448.1K | 0.00% | −1,171−3.2% | Reduced |
| Centiva Capital, LP | 35,111 | $444.2K | 0.02% | −9,826−21.9% | Reduced |
| IMC-Chicago, LLC | 30,316 | $383.5K | 0.01% | −1,108−3.5% | Reduced |
| Wolverine Trading, LLC | 28,752 | $356.8K | 0.01% | +28,752 | New |
| PDT Partners, LLC | 28,185 | $356.5K | 0.03% | −35,197−55.5% | Reduced |
| XTX Topco Ltd | 28,060 | $355.0K | 0.03% | +12,680+82.4% | Added |
| SEI Investments Co | 27,994 | $354.1K | 0.00% | −53−0.2% | Reduced |
| State of Alaska, Department of Revenue | 26,912 | $340.0K | 0.00% | −160−0.6% | Reduced |
| MetLife Investment Management | 26,838 | $339.5K | 0.00% | +2,269+9.2% | Added |
| Fox Run Management, L.L.C. | 26,817 | $339.2K | 0.06% | −25,918−49.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 25,807 | $326.5K | 0.00% | +1,958+8.2% | Added |
| Illinois Municipal Retirement Fund | 24,988 | $316.1K | 0.00% | −1,214−4.6% | Reduced |
| Corebridge Financial, Inc. | 24,304 | $307.4K | 0.00% | −762−3.0% | Reduced |
| Ensign Peak Advisors, Inc | 24,133 | $305.3K | 0.00% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 22,900 | $289.7K | 0.01% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 22,563 | $285.4K | 0.00% | −2,106−8.5% | Reduced |
| Amundi | 24,217 | $280.7K | 0.00% | +16,752+224.4% | Added |
| Gator Capital Management, LLC | 21,435 | $271.2K | 0.10% | −50,883−70.4% | Reduced |
| Creative Planning | 21,210 | $268.3K | 0.00% | +7,305+52.5% | Added |