OCTAVE SPECIALTY GROUP INC - OSG

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 2 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
BlackRock, Inc. History Reduced 4,488,468 34,920 0.0% 0.0% 1 -4,863 -0.11% Q4 2025 Feb 12, 2026
VANGUARD GROUP INC History Reduced 2,508,395 19,515 0.0% 0.0% 2 -46,786 -1.83% Q4 2025 Jan 29, 2026
Western Standard LLC History Reduced 2,504,627 19,485 8.99% 6.53% 3 -136,724 -5.18% Q4 2025 Feb 03, 2026
JANE STREET GROUP, LLC History Added to 2,427,554 18,886 0.0% 0.0% 4 +589,772 32.09% Q4 2025 Feb 12, 2026
Caption Management, LLC History Added to 2,417,294 18,806 0.13% 0.14% 5 +231,615 10.6% Q4 2025 Feb 17, 2026
Wolf Hill Capital Management, LP History Added to 1,888,973 14,696 1.62% 0.89% 6 +730,776 63.1% Q4 2025 Feb 13, 2026
CITADEL ADVISORS LLC History Added to 1,702,283 13,243 0.0% 0.0% 7 +407,340 31.46% Q4 2025 Feb 17, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 1,685,627 13,114 0.0% 0.0% 8 -455,420 -21.27% Q4 2025 Feb 12, 2026
GENDELL JEFFREY L History Reduced 1,569,472 12,210 0.21% 0.29% 9 -295,040 -15.82% Q4 2025 Feb 13, 2026
Bain Capital Credit, LP History No change 1,108,012 8,620 2.25% 2.91% 10 0 0.0% Q4 2025 Feb 17, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 1,024,547 7,972 0.0% 0.0% 11 -36,047 -3.4% Q4 2025 Feb 09, 2026
STATE STREET CORP History Reduced 943,368 7,339 0.0% 0.0% 12 -23,820 -2.46% Q4 2025 Feb 13, 2026
MORGAN STANLEY History Added to 938,712 7,303 0.0% 0.0% 13 +744,588 383.56% Q4 2025 Feb 13, 2026
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. History Reduced 893,517 6,951 0.65% 0.79% 14 -2,460 -0.27% Q4 2025 Feb 06, 2026
Nuveen, LLC History Reduced 810,279 6,303 0.0% 0.0% 15 -269,049 -24.93% Q4 2025 Feb 12, 2026
THIRD AVENUE MANAGEMENT LLC History Added to 782,093 6,084 1.11% 0.92% 16 +178,702 29.62% Q4 2025 Feb 12, 2026
GOLDMAN SACHS GROUP INC History Added to 779,975 6,068 0.0% 0.0% 17 +255,085 48.6% Q4 2025 Mar 25, 2026
MARSHALL WACE, LLP History Added to 748,572 5,823 0.01% 0.0% 18 +293,498 64.49% Q4 2025 Feb 13, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 713,588 5,551 0.0% 0.0% 19 -505,722 -41.48% Q4 2025 Feb 17, 2026
BARCLAYS PLC History Added to 680,441 5,293 0.0% 0.0% 20 +10,928 1.63% Q4 2025 Feb 13, 2026
Bracebridge Capital, LLC History No change 579,234 4,506 0.14% 0.25% 21 0 0.0% Q4 2025 Feb 17, 2026
ESSEX INVESTMENT MANAGEMENT CO LLC History New 410,822 3,196 0.49% 22 +410,822 New Q4 2025 Feb 13, 2026
SG Americas Securities, LLC History Added to 403,237 3,137 0.0% 0.0% 23 +327,822 434.69% Q4 2025 Jan 09, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 361,424 2,811 0.0% 0.0% 24 -21,148 -5.53% Q4 2025 Feb 13, 2026
Walleye Trading LLC History Added to 354,300 2,756 0.0% 0.0% 25 +33,400 10.41% Q4 2025 Feb 13, 2026
Russell Investments Group, Ltd. History Added to 346,258 2,693 0.0% 0.0% 26 +341,342 6943.49% Q4 2025 Feb 17, 2026
BANK OF AMERICA CORP /DE/ History Added to 330,901 2,574 0.0% 0.0% 27 +127,699 62.84% Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Reduced 323,146 2,514 0.0% 0.0% 28 -38,875 -10.74% Q4 2025 Feb 17, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 303,282 2,359 0.0% 0.0% 29 -397,613 -56.73% Q4 2025 Feb 17, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 245,387 1,909 0.04% 0.06% 30 -74,106 -23.19% Q4 2025 Feb 17, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC History New 237,185 1,845 0.01% 31 +237,185 New Q4 2025 Feb 13, 2026
Arrowpoint Investment Partners (Singapore) Pte. Ltd. History No change 203,011 1,579 0.23% 1.69% 32 0 0.0% Q4 2025 Feb 11, 2026
Harbor Advisors LLC History No change 196,382 1,527 0.23% 0.25% 33 0 0.0% Q4 2025 Jan 30, 2026
VELA Investment Management, LLC History Reduced 178,752 1,390 0.33% 0.37% 34 -1,337 -0.74% Q4 2025 Feb 02, 2026
Schonfeld Strategic Advisors LLC History Reduced 169,824 1,321 0.01% 0.03% 35 -378,618 -69.04% Q4 2025 Feb 17, 2026
Invesco Ltd. History Reduced 156,504 1,217 0.0% 0.0% 36 -7,577 -4.62% Q4 2025 Feb 19, 2026
UBS Group AG History Reduced 153,864 1,197 0.0% 0.0% 37 -125,625 -44.95% Q4 2025 Jan 29, 2026
JPMORGAN CHASE & CO History Added to 152,695 1,187 0.0% 0.0% 38 +118,140 341.89% Q4 2025 Feb 11, 2026
Walleye Capital LLC History Added to 140,784 1,095 0.0% 0.0% 39 +104,084 283.61% Q4 2025 Feb 13, 2026
Bank of New York Mellon Corp History Reduced 138,173 1,074 0.0% 0.0% 40 -514 -0.37% Q4 2025 Feb 10, 2026
Legato Capital Management LLC History New 132,620 1,031 0.09% 41 +132,620 New Q4 2025 Feb 06, 2026
AMERICAN CENTURY COMPANIES INC History Reduced 123,599 961 0.0% 0.0% 42 -9,049 -6.82% Q4 2025 Feb 13, 2026
HRT FINANCIAL LP History New 111,702 869 0.0% 43 +111,702 New Q4 2025 Feb 12, 2026
ExodusPoint Capital Management, LP History New 109,765 853 0.01% 44 +109,765 New Q4 2025 Feb 17, 2026
Cruiser Capital Advisors, LLC History Reduced 107,140 833 0.71% 0.93% 45 -4,660 -4.17% Q4 2025 Feb 12, 2026
Point72 Asset Management, L.P. History New 103,544 805 0.0% 46 +103,544 New Q4 2025 Feb 17, 2026
TUDOR INVESTMENT CORP ET AL History Reduced 94,000 731 0.0% 4.84% 47 -31,155 -24.89% Q4 2025 Feb 17, 2026
HSBC HOLDINGS PLC History Reduced 92,040 713 0.0% 0.0% 48 -11,628 -11.22% Q4 2025 Mar 20, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 86,734 674 0.0% 0.0% 49 -2,413 -2.71% Q4 2025 Feb 10, 2026
WELLS FARGO & COMPANY/MN History Added to 85,734 667 0.0% 0.0% 50 +11,877 16.08% Q4 2025 Feb 13, 2026
Jump Financial, LLC History New 85,213 662 0.01% 51 +85,213 New Q4 2025 Feb 17, 2026
Engineers Gate Manager LP History New 81,585 634 0.01% 52 +81,585 New Q4 2025 Feb 17, 2026
Quantinno Capital Management LP History Added to 78,678 612 0.0% 0.0% 53 +38,325 94.97% Q4 2025 Feb 17, 2026
NORGES BANK History New 75,000 583 0.0% 54 +75,000 New Q4 2025 Feb 10, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 70,941 552 0.0% 0.0% 55 0 0.0% Q4 2025 Feb 17, 2026
AQR CAPITAL MANAGEMENT LLC History Reduced 70,128 545 0.0% 0.0% 56 -12,434 -15.06% Q4 2025 Feb 17, 2026
Connor, Clark & Lunn Investment Management Ltd. History Reduced 68,773 535 0.0% 0.0% 57 -36,692 -34.79% Q4 2025 Feb 10, 2026
Creative Planning History Reduced 68,537 533 0.0% 0.0% 58 -21,766 -24.1% Q4 2025 Feb 17, 2026
SEI INVESTMENTS CO History New 66,718 519 0.0% 59 +66,718 New Q4 2025 Feb 13, 2026
Diametric Capital, LP History Added to 66,478 517 0.14% 0.2% 60 +1,852 2.87% Q4 2025 Feb 13, 2026
CAXTON ASSOCIATES LLP History No change 65,647 510 0.01% 0.01% 61 0 0.0% Q4 2025 Feb 13, 2026
DLD Asset Management, LP History Reduced 60,421 470 0.03% 0.55% 62 -856,979 -93.41% Q4 2025 Feb 13, 2026
RHUMBLINE ADVISERS History Reduced 57,471 447 0.0% 0.0% 63 -9,699 -14.44% Q4 2025 Feb 13, 2026
PRUDENTIAL FINANCIAL INC History Reduced 54,340 422 0.0% 0.0% 64 -2,285 -4.04% Q4 2025 Feb 13, 2026
Calamos Advisors LLC History New 49,089 381 0.0% 65 +49,089 New Q4 2025 Jan 29, 2026
TWO SIGMA INVESTMENTS, LP History New 45,044 350 0.0% 66 +45,044 New Q4 2025 Feb 17, 2026
D. E. Shaw & Co., Inc. History Reduced 44,126 343 0.0% 0.0% 67 -74,599 -62.83% Q4 2025 Feb 17, 2026
Y-Intercept (Hong Kong) Ltd History Reduced 43,781 340 0.01% 0.03% 68 -106,708 -70.91% Q4 2025 Feb 13, 2026
BALYASNY ASSET MANAGEMENT L.P. History Reduced 42,917 333 0.0% 0.0% 69 -38,304 -47.16% Q4 2025 Feb 17, 2026
FOX RUN MANAGEMENT, L.L.C. History New 42,354 329 0.05% 70 +42,354 New Q4 2025 Feb 11, 2026
AXQ CAPITAL, LP History New 40,374 314 0.07% 71 +40,374 New Q4 2025 Feb 10, 2026
ALLIANCEBERNSTEIN L.P. History No change 37,530 291 0.0% 0.0% 72 0 0.0% Q4 2025 Feb 17, 2026
XTX Topco Ltd History New 31,058 241 0.01% 73 +31,058 New Q4 2025 Feb 17, 2026
PEAK6 LLC History New 30,478 237 0.0% 74 +30,478 New Q4 2025 Mar 12, 2026
IMC-Chicago, LLC History Reduced 26,303 204 0.0% 0.0% 75 -71,119 -73.0% Q4 2025 Jan 29, 2026
DEUTSCHE BANK AG\ History Reduced 25,647 199 0.0% 0.0% 76 -506,491 -95.18% Q4 2025 Feb 11, 2026
OXFORD ASSET MANAGEMENT LLP History New 25,413 197 0.08% 77 +25,413 New Q4 2025 Feb 17, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 25,158 195 0.0% 0.0% 78 -64,042 -71.8% Q4 2025 Feb 12, 2026
Metis Global Partners, LLC History New 25,136 195 0.0% 79 +25,136 New Q4 2025 Feb 11, 2026
CIBC Asset Management Inc History New 23,893 185 0.0% 80 +23,893 New Q4 2025 Feb 10, 2026
KLCM Advisors, Inc. History Reduced 23,900 185 0.02% 0.02% 81 -100 -0.42% Q4 2025 Feb 04, 2026
ACADIAN ASSET MANAGEMENT LLC History New 23,053 179 0.0% 82 +23,053 New Q4 2025 Feb 10, 2026
Aquatic Capital Management LLC History Added to 23,067 179 0.01% 0.0% 83 +10,479 83.25% Q4 2025 Feb 17, 2026
Quadrature Capital Ltd History New 21,219 165 0.0% 84 +21,219 New Q4 2025 Feb 17, 2026
Brevan Howard Capital Management LP History Reduced 21,033 163 0.0% 0.0% 86 -14,452 -40.73% Q4 2025 Feb 17, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 21,038 163 0.0% 0.0% 85 -1,482 -6.58% Q4 2025 Feb 10, 2026
MetLife Investment Management, LLC History Added to 19,956 155 0.0% 0.0% 87 +1,603 8.73% Q4 2025 Feb 12, 2026
Virtu Financial LLC History New 19,235 150 0.01% 88 +19,235 New Q4 2025 Feb 23, 2026
Quantbot Technologies LP History New 19,241 149 0.0% 89 +19,241 New Q4 2025 Feb 10, 2026
State of Wyoming History Added to 19,249 149 0.02% 0.0% 91 +16,660 643.49% Q4 2025 Feb 11, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Reduced 19,152 149 0.0% 0.0% 90 -900 -4.49% Q4 2025 Feb 17, 2026
Mraz, Amerine & Associates, Inc. History Added to 18,950 147 0.02% 0.02% 92 +700 3.84% Q4 2025 Feb 06, 2026
Verition Fund Management LLC History Reduced 17,500 136 0.0% 0.0% 93 -3,033 -14.77% Q4 2025 Feb 13, 2026
Quarry LP History Reduced 15,103 117 0.02% 0.14% 94 -63,397 -80.76% Q4 2025 Feb 13, 2026
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM History No change 12,630 98 0.0% 0.0% 95 0 0.0% Q4 2025 Feb 12, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History New 12,594 97 0.0% 96 +12,594 New Q4 2025 Feb 13, 2026
nVerses Capital, LLC History New 12,181 94 0.21% 97 +12,181 New Q4 2025 Feb 17, 2026
FRANKLIN RESOURCES INC History Reduced 11,959 93 0.0% 0.0% 98 -5,121 -29.98% Q4 2025 Feb 11, 2026
Police & Firemen's Retirement System of New Jersey History No change 11,825 91 0.0% 0.0% 99 0 0.0% Q4 2025 Feb 13, 2026
Cerity Partners LLC History Reduced 11,332 88 0.0% 0.0% 100 -158 -1.38% Q4 2025 Feb 11, 2026
Voleon Capital Management LP History New 11,204 87 0.0% 101 +11,204 New Q4 2025 Feb 17, 2026
Crown Wealth Group, LLC History New 11,162 86 0.02% 102 +11,162 New Q4 2025 Jan 28, 2026
Inscription Capital, LLC History New 10,800 84 0.01% 103 +10,800 New Q4 2025 Jan 29, 2026
SIMPLEX TRADING, LLC History Reduced 10,611 82 0.0% 0.0% 105 -10,267 -49.18% Q4 2025 Feb 11, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History Reduced 10,643 82 0.01% 0.01% 104 -7,235 -40.47% Q4 2025 Feb 17, 2026
AlphaQuest LLC History New 10,158 79 0.0% 106 +10,158 New Q4 2025 Feb 09, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 10,073 78 0.0% 0.0% 107 0 0.0% Q4 2025 Feb 12, 2026
Kemnay Advisory Services Inc. History New 8,059 62 0.01% 108 +8,059 New Q4 2025 Feb 17, 2026
CITIGROUP INC History Reduced 7,098 55 0.0% 0.0% 109 -2,243 -24.01% Q4 2025 Feb 13, 2026
CWM, LLC History Reduced 5,598 44 0.0% 0.0% 110 -1,363 -19.58% Q4 2025 Jan 26, 2026
FEDERATED HERMES, INC. History No change 4,420 34 0.0% 0.0% 111 0 0.0% Q4 2025 Feb 12, 2026
Legal & General Group Plc History No change 3,839 29 0.0% 0.0% 112 0 0.0% Q4 2025 Feb 09, 2026
Ameritas Investment Partners, Inc. History No change 3,648 28 0.0% 0.0% 113 0 0.0% Q4 2025 Feb 11, 2026
FMR LLC History Reduced 2,517 19 0.0% 0.0% 114 -1,522,906 -99.83% Q4 2025 Feb 17, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 2,539 19 0.0% 0.0% 115 -435 -14.63% Q4 2025 Feb 17, 2026
Sterling Capital Management LLC History Reduced 2,379 18 0.0% 0.0% 116 -599 -20.11% Q4 2025 Feb 13, 2026
QUADRANT CAPITAL GROUP LLC History Reduced 1,878 14 0.0% 0.0% 117 -605 -24.37% Q4 2025 Feb 13, 2026
Versant Capital Management, Inc History Added to 1,823 14 0.0% 0.0% 118 +204 12.6% Q4 2025 Jan 08, 2026
ROYAL BANK OF CANADA History New 1,194 10 0.0% 120 +1,194 New Q4 2025 Feb 17, 2026
AMALGAMATED BANK History Reduced 1,297 10 0.0% 0.0% 119 -270 -17.23% Q4 2025 Feb 05, 2026
Tower Research Capital LLC (TRC) History Reduced 1,277 9 0.0% 0.0% 122 -1,110 -46.5% Q4 2025 Feb 17, 2026
HARBOR CAPITAL ADVISORS, INC. History Reduced 1,131 9 0.0% 0.0% 121 -19 -1.65% Q4 2025 Jan 20, 2026
MAI Capital Management History Added to 1,069 8 0.0% 0.0% 123 +5 0.47% Q4 2025 Feb 13, 2026
Torren Management, LLC History New 1,024 7 0.0% 125 +1,024 New Q4 2025 Jan 30, 2026
NISA INVESTMENT ADVISORS, LLC History No change 970 7 0.0% 0.0% 124 0 0.0% Q4 2025 Jan 15, 2026
GAMMA Investing LLC History Reduced 431 3 0.0% 0.0% 127 -196 -31.26% Q4 2025 Jan 05, 2026
Capital Analysts, LLC History No change 325 3 0.0% 0.0% 126 0 0.0% Q4 2025 Feb 11, 2026
Wiser Advisor Group LLC History No change 500 3 0.0% 0.0% 128 0 0.0% Q4 2025 Feb 09, 2026
Allworth Financial LP History New 291 2 0.0% 129 +291 New Q4 2025 Feb 05, 2026
Optiver Holding B.V. History Reduced 370 2 0.0% 0.0% 130 -54 -12.74% Q4 2025 Feb 17, 2026
Arax Advisory Partners History Reduced 257 1 0.0% 0.0% 133 -6,357 -96.11% Q4 2025 Feb 13, 2026
SIGNATUREFD, LLC History Reduced 180 1 0.0% 0.0% 132 -574 -76.13% Q4 2025 Jan 20, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History New 148 1 0.0% 131 +148 New Q4 2025 Feb 11, 2026
Parallel Advisors, LLC History Reduced 151 1 0.0% 0.0% 134 -109 -41.92% Q4 2025 Feb 11, 2026
DiNuzzo Private Wealth, Inc. History No change 177 1 0.0% 0.0% 135 0 0.0% Q4 2025 Jan 16, 2026
CONTINENTAL GENERAL INSURANCE CO History Closed out 0 0 3.34% -2,068,349 -100.0% Q3 2025 Nov 13, 2025
Empowered Funds, LLC History Closed out 0 0 0.02% -234,493 -100.0% Q3 2025 Nov 13, 2025
Squarepoint Ops LLC History Closed out 0 0 0.0% -175,017 -100.0% Q3 2025 Nov 14, 2025
Trexquant Investment LP History Closed out 0 0 0.01% -136,696 -100.0% Q3 2025 Nov 14, 2025
Empirical Finance, LLC History Closed out 0 0 0.03% -72,182 -100.0% Q3 2025 Nov 13, 2025
Sender Co & Partners, Inc. History Closed out 0 0 0.06% -70,890 -100.0% Q3 2025 Nov 17, 2025
Cresset Asset Management, LLC History Closed out 0 0 0.0% -22,193 -100.0% Q3 2025 Jan 22, 2026
Gator Capital Management, LLC History Closed out 0 0 0.05% -21,435 -100.0% Q3 2025 Nov 13, 2025
GROUP ONE TRADING LLC History Closed out 0 0 0.0% -20,449 -100.0% Q3 2025 Nov 12, 2025
LEVIN CAPITAL STRATEGIES, L.P. History Closed out 0 0 0.01% -17,500 -100.0% Q3 2025 Nov 07, 2025
IEQ CAPITAL, LLC History Closed out 0 0 0.0% -13,702 -100.0% Q3 2025 Nov 14, 2025
FNY Investment Advisers, LLC History Closed out 0 0 0.03% -11,584 -100.0% Q3 2025 Dec 15, 2025
US BANCORP \DE\ History Reduced 81 0 0.0% -674 -89.27% Q4 2025 Jan 30, 2026
NATIONAL BANK OF CANADA /FI/ History Closed out 0 0 0.0% -385 -100.0% Q3 2025 Nov 14, 2025
PRINCIPAL SECURITIES, INC. History Closed out 0 0 0.0% -120 -100.0% Q3 2025 Nov 12, 2025
ROTHSCHILD INVESTMENT LLC History Reduced 32 0 -30 -48.39% Q4 2025 Feb 10, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 113 0 0.0% -30 -20.98% Q4 2025 Feb 06, 2026
Farther Finance Advisors, LLC History Added to 122 0 +17 16.19% Q4 2025 Jan 23, 2026
IFP Advisors, Inc History Added to 31 0 +16 106.67% Q4 2025 Feb 06, 2026
EverSource Wealth Advisors, LLC History Reduced 58 0 -14 -19.44% Q4 2025 Feb 06, 2026
True Wealth Design, LLC History Reduced 45 0 -6 -11.76% Q4 2025 Jan 08, 2026
Advisors Asset Management, Inc. History Reduced 98 0 0.0% -3 -2.97% Q4 2025 Feb 12, 2026
SBI Securities Co., Ltd. History Reduced 10 0 -2 -16.67% Q4 2025 Feb 03, 2026
OSAIC HOLDINGS, INC. History No change 26 0 0 0.0% Q4 2025 Feb 17, 2026
Legacy Wealth Managment, LLC/ID History No change 25 0 0 0.0% Q4 2025 Feb 03, 2026