OCTAVE SPECIALTY GROUP INC (OSG)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
145
Reporting holders
$202.6M
Reported value
67.1%
Of shares outstanding
6.9%
Held as options
+4
Holder change
Institutions report 30,235,905 shares against 45,051,486 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $28.5M | 4,572,516 | 0.00% | 8q | +16.7%+$4.1M |
| Western Standard LLC | $14.0M | 2,247,591 | 4.75% | 4q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $12.3M | 1,972,619 | 0.00% | 2q | +1.4%+$171.9K |
| Prescott Group Capital Management, L.L.C. | $10.3M | 1,647,793 | 0.89% | 9q | +3.5%+$344.5K |
| THIRD AVENUE MANAGEMENT LLC | $8.4M | 1,341,879 | 1.34% | 7q | HELD |
| Bain Capital Credit, LP | $6.9M | 1,108,012 | 1.88% | 8q | HELD |
| GEODE CAPITAL MANAGEMENT, LLC | $6.9M | 1,106,335 | 0.00% | 31q | +8.2%+$523.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6.8M | 136,692 | 0.00% | 31q | -65.0%-$12.6M |
| Caption Management, LLC | $5.6M | 419,136 | 0.03% | 23q | -34.8%-$3.0M |
| STATE STREET CORP | $5.6M | 898,673 | 0.00% | 31q | -4.5%-$266.6K |
| DIMENSIONAL FUND ADVISORS LP | $4.5M | 716,947 | 0.00% | 31q | -45.3%-$3.7M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $4.1M | 649,530 | 0.01% | 3q | -26.5%-$1.5M |
| MARSHALL WACE, LLP | $3.8M | 601,796 | 0.00% | 10q | -43.5%-$2.9M |
| ZACKS INVESTMENT MANAGEMENT | $3.7M | 590,370 | 0.03% | new | NEW |
| Bracebridge Capital, LLC | $3.6M | 579,234 | 0.07% | 27q | HELD |
| MORGAN STANLEY | $3.6M | 569,563 | 0.00% | 35q | +142.1%+$2.1M |
| GOLDMAN SACHS GROUP INC | $3.5M | 560,756 | 0.00% | 31q | +61.9%+$1.3M |
| RIHO Partners, LLC | $3.5M | 554,818 | 1.95% | 2q | +1.5%+$51.5K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | $3.4M | 539,289 | 0.44% | 3q | +29.0%+$755.6K |
| CITADEL ADVISORS LLC | $3.3M | 422,777 | 0.00% | 31q | -2.1%-$70.7K |
| GENDELL JEFFREY L | $3.1M | 494,092 | 0.03% | 15q | -65.0%-$5.7M |
| Wolf Hill Capital Management, LP | $3.0M | 480,187 | 0.25% | 7q | -67.3%-$6.2M |
| Nuveen, LLC | $2.7M | 428,165 | 0.00% | 6q | -46.5%-$2.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $2.4M | 392,350 | 0.00% | 2q | +32.6%+$601.8K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.4M | 377,869 | 0.00% | 31q | +27.9%+$515.0K |
| Sixth Street Partners Management Company, L.P. | $2.4M | 377,869 | 0.00% | new | NEW |
| NORTHERN TRUST CORP | $2.2M | 352,680 | 0.00% | 31q | +9.4%+$189.3K |
| JANE STREET GROUP, LLC | $2.1M | 278,731 | 0.00% | 14q | -63.5%-$3.7M |
| SIMPLEX TRADING, LLC | $2.0M | options only | 0.00% | 30q | OPTIONS |
| IPG Investment Advisors LLC | $1.9M | 303,930 | 0.27% | 2q | -6.7%-$135.3K |
| Connor, Clark & Lunn Investment Management Ltd. | $1.9M | 302,913 | 0.00% | 7q | +109.9%+$989.7K |
| VANGUARD FIDUCIARY TRUST CO | $1.8M | 295,841 | 0.00% | 2q | +7.8%+$132.8K |
| AYAL Capital Advisors Ltd | $1.7M | 280,000 | 0.47% | new | NEW |
| TUDOR INVESTMENT CORP ET AL | $1.7M | 216,362 | 0.00% | 10q | +35.3%+$435.9K |
| RAYMOND JAMES FINANCIAL INC | $1.5M | 239,680 | 0.00% | 2q | +834.2%+$1.3M |
| AQR CAPITAL MANAGEMENT LLC | $1.4M | 229,890 | 0.00% | 5q | +361.4%+$1.1M |
| PRUDENTIAL FINANCIAL INC | $1.4M | 226,010 | 0.00% | 4q | +222.4%+$972.8K |
| GROUP ONE TRADING LLC | $1.3M | 22,576 | 0.00% | 13q | +89.0%+$598.0K |
| Harbor Advisors LLC | $1.2M | 196,382 | 0.15% | 31q | HELD |
| Russell Investments Group, Ltd. | $1.2M | 195,046 | 0.00% | 16q | +7.6%+$86.0K |
| Quantinno Capital Management LP | $1.2M | 190,283 | 0.00% | 5q | +290.7%+$883.5K |
| Legato Capital Management LLC | $1.1M | 181,037 | 0.09% | 3q | +38.4%+$313.7K |
| UBS Group AG | $918.5K | 147,197 | 0.00% | 31q | -44.3%-$730.6K |
| Bank of New York Mellon Corp | $842.2K | 134,966 | 0.00% | 31q | +3.4%+$28.0K |
| BANK OF AMERICA CORP /DE/ | $819.7K | 131,360 | 0.00% | 31q | -48.7%-$778.4K |
| Invesco Ltd. | $797.9K | 127,868 | 0.00% | 31q | -15.3%-$144.6K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $764.4K | 122,504 | 0.01% | 15q | -32.9%-$374.4K |
| Diametric Capital, LP | $738.6K | 118,364 | 0.08% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $731.3K | 117,200 | 0.00% | 16q | -48.5%-$689.7K |
| WELLS FARGO & COMPANY/MN | $728.2K | 116,707 | 0.00% | 31q | +5.5%+$37.8K |
| HSBC HOLDINGS PLC | $723.5K | 114,498 | 0.00% | 19q | +11.8%+$76.3K |
| SEI INVESTMENTS CO | $682.6K | 109,389 | 0.00% | 3q | -29.9%-$291.3K |
| LONE PEAK GLOBAL INVESTORS LLC | $671.9K | 107,676 | 0.09% | new | NEW |
| AMERICAN CENTURY COMPANIES INC | $567.8K | 91,000 | 0.00% | 18q | -24.5%-$184.3K |
| IMC-Chicago, LLC | $551.0K | options only | 0.00% | 10q | OPTIONS |
| Man Group plc | $415.5K | 66,579 | 0.00% | new | NEW |
| Vanguard Global Advisers, LLC | $393.9K | 63,120 | 0.00% | 2q | +238.4%+$277.5K |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $382.5K | 61,305 | 0.00% | 2q | -10.9%-$46.8K |
| GWN SECURITIES INC. | $376.2K | 60,295 | 0.06% | 2q | +65.6%+$149.1K |
| MERCER GLOBAL ADVISORS INC /ADV | $365.5K | 58,576 | 0.00% | 2q | +333.8%+$281.2K |
| AMERIPRISE FINANCIAL INC | $365.1K | 58,504 | 0.00% | 2q | -74.6%-$1.1M |
| FJ Capital Management LLC | $361.5K | 57,937 | 0.05% | new | NEW |
| State of Wyoming | $347.8K | 55,733 | 0.04% | 17q | +93.6%+$168.2K |
| Empowered Funds, LLC | $337.0K | 54,004 | 0.00% | 2q | -52.6%-$374.4K |
| RHUMBLINE ADVISERS | $333.7K | 53,481 | 0.00% | 31q | HELD |
| BARCLAYS PLC | $309.7K | 49,637 | 0.00% | 31q | -12.9%-$45.8K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $298.8K | 47,883 | 0.00% | 3q | +32253.4%+$297.9K |
| Corient Private Wealth LP | $280.6K | 44,960 | 0.00% | new | NEW |
| LAZARD ASSET MANAGEMENT LLC | $270.4K | 43,331 | 0.00% | 2q | +48.3%+$88.1K |
| DEUTSCHE BANK AG\ | $251.8K | 40,359 | 0.00% | 34q | +31.9%+$61.0K |
| ALLIANCEBERNSTEIN L.P. | $198.2K | 42,630 | 0.00% | 31q | +13.6%+$23.7K |
| Mariner, LLC | $190.8K | 30,584 | 0.00% | new | NEW |
| STATE OF WISCONSIN INVESTMENT BOARD | $187.5K | 30,044 | 0.00% | 2q | +29.8%+$43.1K |
| Cerity Partners LLC | $167.4K | 26,828 | 0.00% | new | NEW |
| Engineers Gate Manager LP | $159.1K | 25,500 | 0.00% | 3q | -74.6%-$467.5K |
| MetLife Investment Management, LLC | $152.9K | 24,501 | 0.00% | 4q | +230.2%+$106.6K |
| ENVESTNET ASSET MANAGEMENT INC | $151.3K | 24,244 | 0.00% | new | NEW |
| KLCM Advisors, Inc. | $149.1K | 23,900 | 0.01% | 17q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $134.5K | 21,554 | 0.00% | 31q | +159.7%+$82.7K |
| Mraz, Amerine & Associates, Inc. | $133.8K | 21,450 | 0.02% | 30q | HELD |
| Gator Capital Management, LLC | $130.6K | 20,935 | 0.03% | 2q | -2.3%-$3.1K |
| MILLENNIUM MANAGEMENT LLC | $122.4K | 19,610 | 0.00% | 18q | -85.5%-$720.6K |
| Impact Capital Partners LLC | $121.8K | 19,516 | 0.03% | new | NEW |
| CITIGROUP INC | $119.1K | 19,080 | 0.00% | 31q | +55.8%+$42.6K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $118.8K | 19,044 | 0.00% | 9q | +4.2%+$4.8K |
| Inscription Capital, LLC | $118.8K | 19,037 | 0.01% | new | NEW |
| JPMORGAN CHASE & CO | $118.7K | 18,668 | 0.00% | 31q | -93.0%-$1.6M |
| XTX Topco Ltd | $116.4K | 18,657 | 0.00% | 3q | -84.0%-$613.1K |
| Metis Global Partners, LLC | $89.4K | 14,334 | 0.00% | 3q | HELD |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $84.6K | 14,061 | 0.00% | new | NEW |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $78.8K | 12,630 | 0.00% | 31q | HELD |
| Atria Investments, Inc | $77.8K | 12,473 | 0.00% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $77.5K | 12,414 | 0.00% | 18q | +14.6%+$9.9K |
| D. E. Shaw & Co., Inc. | $76.2K | 12,207 | 0.00% | 23q | -5.1%-$4.1K |
| IEQ CAPITAL, LLC | $76.1K | 12,203 | 0.00% | new | NEW |
| Police & Firemen's Retirement System of New Jersey | $73.8K | 11,825 | 0.00% | 7q | HELD |
| Jump Financial, LLC | $72.7K | 11,644 | 0.00% | 3q | -83.5%-$367.9K |
| Crown Wealth Group, LLC | $69.7K | 11,162 | 0.02% | 3q | HELD |
| McGlone Suttner Wealth Management, Inc. | $68.1K | 10,911 | 0.01% | new | NEW |
| AXQ CAPITAL, LP | $66.5K | 10,652 | 0.01% | 3q | -31.0%-$29.9K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-31 | 13G | Vanguard Capital Management | 5.0% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 145 | $202.6M | 30,235,905 | 37 | 48 | 35 | 6.9% |
| Q1 2026 | 141 | $158.0M | 32,492,956 | 34 | 29 | 49 | 4.3% |
| Q4 2025 | 139 | $311.6M | 34,218,167 | 25 | 26 | 61 | 14.6% |
| Q3 2025 | 125 | $363.5M | 36,278,917 | 25 | 36 | 46 | 16.8% |
| Q2 2025 | 139 | $340.8M | 36,679,546 | 28 | 44 | 45 | 23.6% |
| Q1 2025 | 165 | $420.6M | 36,874,551 | 28 | 50 | 52 | 23.7% |
| Q4 2024 | 168 | $584.0M | 41,182,850 | 21 | 59 | 50 | 11.4% |
| Q3 2024 | 165 | $481.6M | 40,064,543 | 21 | 64 | 48 | 7.2% |
| Q2 2024 | 213 | $841.0M | 77,817,322 | 67 | 84 | 94 | 2.1% |
| Q1 2024 | 190 | $838.9M | 73,906,509 | 35 | 70 | 99 | 1.7% |
| Q4 2023 | 183 | $849.4M | 72,525,889 | 30 | 87 | 68 | 5.1% |
| Q3 2023 | 175 | $590.9M | 70,700,576 | 28 | 80 | 73 | 1.1% |
| Q2 2023 | 173 | $679.3M | 72,840,125 | 49 | 69 | 71 | 2.4% |
| Q1 2023 | 173 | $729.4M | 70,908,876 | 34 | 73 | 67 | 1.7% |
| Q4 2022 | 159 | $610.2M | 57,126,862 | 53 | 58 | 48 | 1.7% |
| Q3 2022 | 182 | $544.1M | 68,734,054 | 42 | 66 | 62 | 5.7% |
| Q2 2022 | 166 | $491.6M | 70,965,306 | 26 | 56 | 69 | 3.3% |
| Q1 2022 | 169 | $486.6M | 74,131,395 | 33 | 64 | 58 | 3.8% |
| Q4 2021 | 159 | $701.1M | 76,021,922 | 18 | 59 | 51 | 2.6% |
| Q3 2021 | 163 | $608.0M | 75,380,347 | 35 | 50 | 65 | 1.6% |
| Q2 2021 | 158 | $655.6M | 75,871,892 | 23 | 49 | 75 | 1.1% |
| Q1 2021 | 164 | $711.1M | 80,238,545 | 25 | 63 | 75 | 2.0% |
| Q4 2020 | 172 | $694.3M | 80,696,937 | 34 | 69 | 62 | 3.8% |
| Q3 2020 | 162 | $568.4M | 78,538,968 | 20 | 57 | 71 | 1.9% |
| Q2 2020 | 169 | $623.1M | 80,261,493 | 47 | 60 | 68 | 1.3% |
| Q1 2020 | 155 | $548.5M | 78,341,896 | 21 | 54 | 80 | 0.9% |
| Q4 2019 | 165 | $942.3M | 86,028,348 | 26 | 59 | 73 | 2.8% |
| Q3 2019 | 131 | $729.3M | 36,046,234 | 17 | 45 | 37 | 3.4% |
| Q2 2019 | 172 | $800.8M | 82,528,555 | 40 | 70 | 56 | 9.1% |
| Q1 2019 | 186 | $793.9M | 84,172,539 | 32 | 73 | 87 | 2.9% |
| Q4 2018 | 149 | $687.0M | 38,818,123 | 5 | 3 | 2 | 2.6% |