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, Q3 2021
Institutional positions in Octave Specialty Group Inc as of Sep 30, 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
- 133
- +8 vs. Q2 2021
- Shares held
- 36.1M
- −30.1K (−0.1%) vs. Q2 2021
- Total value
- $516.2M
- −$48.6M (−8.6%) vs. Q2 2021
- New holders
- 20
- 37 more added
- Sold out
- 12
- 44 more reduced
1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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.
| 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, Q3 2021
Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 6,326,827 | $90.6M | 0.00% | −199,042−3.1% | Reduced |
| Vanguard Group Inc | 4,857,078 | $69.6M | 0.00% | +36,545+0.8% | Added |
| FMR LLC | 2,060,260 | $29.5M | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 1,943,118 | $27.8M | 0.01% | −61,420−3.1% | Reduced |
| CQS (US), LLC | 1,890,000 | $27.1M | 1.68% | 00.0% | Unchanged |
| Morgan Stanley | 1,549,509 | $22.2M | 0.00% | +1,134,167+273.1% | Added |
| State Street Corp | 1,485,792 | $21.3M | 0.00% | +7,682+0.5% | Added |
| Dimensional Fund Advisors LP | 1,361,660 | $19.5M | 0.01% | −314,925−18.8% | Reduced |
| Boussard & Gavaudan Investment Management LLP | 1,217,906 | $17.4M | 1.63% | +218,023+21.8% | Added |
| Davidson Kempner Capital Management LP | 984,385 | $14.1M | 0.21% | +484,385+96.9% | Added |
| EJF Capital LLC | 967,808 | $13.9M | 1.21% | −356,854−26.9% | Reduced |
| Bracebridge Capital, LLC | 799,234 | $11.4M | 4.10% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 750,116 | $10.7M | 0.00% | +4,419+0.6% | Added |
| Barclays PLC | 707,755 | $10.1M | 0.01% | +12,610+1.8% | Added |
| Charles Schwab Investment Management Inc | 594,095 | $8.51M | 0.00% | +31,746+5.6% | Added |
| Northern Trust Corp | 494,648 | $7.08M | 0.00% | −26,522−5.1% | Reduced |
| Hotchkis & Wiley Capital Management LLC | 483,417 | $6.92M | 0.02% | −12,730−2.6% | Reduced |
| Bank of New York Mellon Corp | 437,691 | $6.27M | 0.00% | +10,001+2.3% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 435,100 | $6.23M | 0.02% | +435,100 | New |
| JPMorgan Chase & Co | 413,197 | $5.92M | 0.00% | −117,887−22.2% | Reduced |
| Assenagon Asset Management S.A. | 372,176 | $5.33M | 0.02% | −6,024−1.6% | Reduced |
| Citigroup Inc | 327,387 | $4.69M | 0.00% | −395,394−54.7% | Reduced |
| Principal Financial Group Inc | 315,121 | $4.51M | 0.00% | −4,373−1.4% | Reduced |
| Harbor Advisors LLC | 261,382 | $3.74M | 0.75% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 251,419 | $3.60M | 0.00% | −3,629−1.4% | Reduced |
| Norges Bank | 229,386 | $3.29M | 0.00% | +229,386 | New |
| Deutsche Bank AG | 220,394 | $3.15M | 0.00% | −86,101−28.1% | Reduced |
| Invesco Ltd. | 184,052 | $2.63M | 0.00% | +4,088+2.3% | Added |
| Nuveen Asset Management, LLC | 189,414 | $2.56M | 0.00% | −3,163−1.6% | Reduced |
| Public Sector Pension Investment Board | 155,451 | $2.23M | 0.01% | 00.0% | Unchanged |
| Brookfield Asset Management Inc. | 150,000 | $2.15M | 0.01% | +90,000+150.0% | Added |
| Credit Suisse AG | 142,799 | $2.04M | 0.00% | +7,990+5.9% | Added |
| Bank of America Corp | 140,318 | $2.01M | 0.00% | +33,684+31.6% | Added |
| Citadel Advisors LLC | 134,874 | $1.93M | 0.00% | +30,008+28.6% | Added |
| Wells Fargo & Company | 134,441 | $1.93M | 0.00% | +516+0.4% | Added |
| Rhumbline Advisers | 129,390 | $1.85M | 0.00% | −17,198−11.7% | Reduced |
| Quinn Opportunity Partners LLC | 128,701 | $1.84M | 0.12% | 00.0% | Unchanged |
| Legal & General Group Plc | 106,837 | $1.53M | 0.00% | +9,047+9.3% | Added |
| Canada Pension Plan Investment Board | 105,000 | $1.50M | 0.00% | +105,000 | New |
| Interval Partners, LP | 103,884 | $1.49M | 0.09% | +103,884 | New |
| Bluefin Capital Management, LLC | 102,070 | $1.46M | 0.17% | +17,339+20.5% | Added |
| Swiss National Bank | 101,000 | $1.45M | 0.00% | 00.0% | Unchanged |
| Alpine Global Management, LLC | 92,916 | $1.33M | 0.30% | +72,839+362.8% | Added |
| Centiva Capital, LP | 89,516 | $1.28M | 0.10% | +89,516 | New |
| Gsa Capital Partners LLP | 82,584 | $1.18M | 0.12% | +24,395+41.9% | Added |
| Schonfeld Strategic Advisors LLC | 72,000 | $1.03M | 0.01% | +72,000 | New |
| Arctis Global LLC | 71,563 | $1.02M | 0.32% | −1,700,000−96.0% | Reduced |
| Salzhauer Michael | 70,000 | $1.00M | 0.45% | +70,000 | New |
| Parametric Portfolio Associates LLC | 68,140 | $976.0K | 0.00% | −14,870−17.9% | Reduced |
| Caption Management, LLC | 67,700 | $969.0K | 0.06% | +67,700 | New |
| California State Teachers Retirement System | 62,124 | $890.0K | 0.00% | −460−0.7% | Reduced |
| Ensign Peak Advisors, Inc | 57,500 | $823.0K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 57,404 | $822.0K | 0.00% | +57,404 | New |
| Susquehanna International Group, LLP | 57,172 | $819.0K | 0.00% | +40,902+251.4% | Added |
| Verition Fund Management LLC | 55,190 | $790.0K | 0.01% | +2,190+4.1% | Added |
| Royce & Associates LP | 53,000 | $759.0K | 0.01% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 52,800 | $756.0K | 0.00% | +52,800 | New |
| Comerica Bank | 41,926 | $711.0K | 0.00% | −1,327−3.1% | Reduced |
| Prudential Financial Inc | 49,084 | $703.0K | 0.00% | +857+1.8% | Added |
| BNP Paribas Arbitrage, SA | 48,921 | $700.5K | 0.00% | +27,026+123.4% | Added |
| UBS Asset Management Americas Inc | 47,069 | $674.0K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 42,474 | $608.0K | 0.00% | +233+0.6% | Added |
| Great West Life Assurance Co | 39,955 | $577.0K | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 38,990 | $558.0K | 0.00% | −30,008−43.5% | Reduced |
| Tudor Investment Corp Et Al | 37,948 | $543.0K | 0.01% | −18,792−33.1% | Reduced |
| Thrivent Financial for Lutherans | 37,358 | $535.0K | 0.00% | −408−1.1% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 35,042 | $502.0K | 0.01% | −410−1.2% | Reduced |
| Texas Permanent School Fund | 34,188 | $490.0K | 0.01% | −239−0.7% | Reduced |
| State of Alaska, Department of Revenue | 33,712 | $482.0K | 0.00% | +1,745+5.5% | Added |
| New York State Common Retirement Fund | 33,465 | $479.0K | 0.00% | −6,712−16.7% | Reduced |
| Susquehanna Fundamental Investments, LLC | 33,080 | $474.0K | 0.01% | +381+1.2% | Added |
| Wolverine Trading, LLC | 29,910 | $429.0K | 0.01% | +29,910 | New |
| SG Americas Securities, LLC | 29,370 | $421.0K | 0.00% | +29,370 | New |
| American International Group, Inc. | 28,616 | $410.0K | 0.00% | −995−3.4% | Reduced |
| Boothbay Fund Management, LLC | 27,500 | $394.0K | 0.02% | 00.0% | Unchanged |
| SEI Investments Co | 27,150 | $389.0K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Services Advisors, Inc. | 26,965 | $386.0K | 0.00% | −1,450−5.1% | Reduced |
| Alliancebernstein L.P. | 24,880 | $356.0K | 0.00% | −4,150−14.3% | Reduced |
| Manufacturers Life Insurance Company, The | 24,325 | $348.0K | 0.00% | −1,300−5.1% | Reduced |
| Maven Securities LTD | 24,061 | $345.0K | 0.04% | +7,100+41.9% | Added |
| Millennium Management LLC | 23,829 | $341.0K | 0.00% | −45,559−65.7% | Reduced |
| Louisiana State Employees Retirement System | 22,300 | $319.0K | 0.01% | +1,500+7.2% | Added |
| Two Sigma Advisers, LP | 22,100 | $316.0K | 0.00% | −4,600−17.2% | Reduced |
| Amalgamated Bank | 21,304 | $305.0K | 0.00% | −382−1.8% | Reduced |
| Redwood Investment Management, LLC | 21,318 | $305.0K | 0.04% | 00.0% | Unchanged |
| Clear Harbor Asset Management, LLC | 21,130 | $303.0K | 0.04% | −1,550−6.8% | Reduced |
| Tower Research Capital LLC (TRC) | 21,062 | $302.0K | 0.01% | +18,038+596.5% | Added |
| State Board of Administration of Florida Retirement System | 20,940 | $300.0K | 0.00% | 00.0% | Unchanged |
| Mraz, Amerine & Associates, Inc. | 20,850 | $299.0K | 0.08% | −250−1.2% | Reduced |
| Trexquant Investment LP | 19,853 | $284.0K | 0.02% | +9,302+88.2% | Added |
| Voya Investment Management LLC | 19,039 | $273.0K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 18,782 | $269.0K | 0.00% | −100−0.5% | Reduced |
| Maryland State Retirement & Pension System | 18,200 | $263.0K | 0.01% | +18,200 | New |
| HRT Financial LP | 18,145 | $259.0K | 0.00% | +18,145 | New |
| Everence Capital Management Inc | 16,620 | $238.0K | 0.02% | +16,620 | New |
| HighTower Advisors, LLC | 15,326 | $219.0K | 0.00% | +15,326 | New |
| State of Tennessee, Treasury Department | 14,769 | $212.0K | 0.00% | −1,574−9.6% | Reduced |
| Bank of Montreal | 14,418 | $208.0K | 0.00% | −271−1.8% | Reduced |
| New York State Teachers Retirement System | 14,430 | $207.0K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 12,584 | $180.0K | 0.00% | +132+1.1% | Added |