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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.

Institutional holdersQ4 2024: 181 institutions
Q1 2021: 140 institutionsQ2 2021: 126 institutionsQ3 2021: 133 institutionsQ4 2021: 135 institutionsQ1 2022: 150 institutionsQ2 2022: 141 institutionsQ3 2022: 154 institutionsQ4 2022: 167 institutionsQ1 2023: 160 institutionsQ2 2023: 160 institutionsQ3 2023: 167 institutionsQ4 2023: 174 institutionsQ1 2024: 172 institutionsQ2 2024: 182 institutionsQ3 2024: 180 institutionsQ4 2024: 181 institutionsQ1 2025: 176 institutionsQ2 2025: 147 institutionsQ3 2025: 130 institutionsQ4 2025: 144 institutionsQ1 2026: 148 institutionsQ2 2026: 147 institutions
Value heldQ4 2024: $522.4M
Q1 2021: $611.7MQ2 2021: $565.0MQ3 2021: $516.2MQ4 2021: $598.9MQ1 2022: $392.1MQ2 2022: $386.6MQ3 2022: $400.7MQ4 2022: $600.4MQ1 2023: $596.2MQ2 2023: $529.6MQ3 2023: $438.7MQ4 2023: $628.4MQ1 2024: $591.5MQ2 2024: $495.9MQ3 2024: $449.6MQ4 2024: $522.4MQ1 2025: $327.5MQ2 2025: $262.5MQ3 2025: $303.6MQ4 2025: $270.0MQ1 2026: $151.4MQ2 2026: $187.6M
Institutions holding OSG and their total value by quarter
QuarterHoldersValue
Q2 2026147$187.6M
Q1 2026148$151.4M
Q4 2025144$270.0M
Q3 2025130$303.6M
Q2 2025147$262.5M
Q1 2025176$327.5M
Q4 2024181$522.4M
Q3 2024180$449.6M
Q2 2024182$495.9M
Q1 2024172$591.5M
Q4 2023174$628.4M
Q3 2023167$438.7M
Q2 2023160$529.6M
Q1 2023160$596.2M
Q4 2022167$600.4M
Q3 2022154$400.7M
Q2 2022141$386.6M
Q1 2022150$392.1M
Q4 2021135$598.9M
Q3 2021133$516.2M
Q2 2021126$565.0M
Q1 2021140$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.

Institutions holding OSG in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
GWM Advisors LLC5$630.00%00.0%Unchanged
SBI Securities Co., Ltd.10$1270.00%+10New
IFP Advisors, Inc0$1520.00%0New
Umb Bank N A15$1900.00%00.0%Unchanged
Principal Securities, Inc.16$2020.00%+16New
Allworth Financial LP19$2150.00%00.0%Unchanged
Versant Capital Management, Inc19$2400.00%00.0%Unchanged
Legacy Investment Solutions, LLC25$2870.00%00.0%Unchanged
Legacy Wealth Managment, LLC25$2870.00%00.0%Unchanged
Farmers & Merchants Investments Inc31$3920.00%00.0%Unchanged
Parallel Advisors, LLC61$7720.00%−23−27.4%Reduced
Capital Advisors, Ltd. LLC76$1.00K0.00%+21+38.2%Added
Covestor Ltd112$1.00K0.00%+18+19.1%Added
Farther Finance Advisors, LLC89$1.13K0.00%00.0%Unchanged
Point72 Asia (Singapore) Pte. Ltd.129$1.63K0.00%−1,297−91.0%Reduced
Rothschild Investment LLC142$1.80K0.00%+50+54.3%Added
Quadrant Capital Group LLC147$1.86K0.00%+46+45.5%Added
Massmutual Trust Co FSB152$1.92K0.00%+94+162.1%Added
Hexagon Capital Partners LLC153$1.94K0.00%+153New
Huntington National Bank158$2.00K0.00%−223−58.5%Reduced
Assetmark, Inc158$2.00K0.00%−13−7.6%Reduced
DiNuzzo Private Wealth, Inc.177$2.24K0.00%00.0%Unchanged
Red Tortoise LLC180$2.28K0.00%00.0%Unchanged
Pinnacle Holdings, LLC186$2.35K0.00%00.0%Unchanged
Capital Analysts, LLC325$4.00K0.00%00.0%Unchanged
CWM, LLC333$4.00K0.00%+228+217.1%Added
Skopos Labs, Inc.352$4.45K0.00%+352New
Venturi Wealth Management, LLC375$4.74K0.00%00.0%Unchanged
Fifth Third Bancorp429$5.43K0.00%00.0%Unchanged
Barrow Hanley Mewhinney & Strauss LLC450$5.69K0.00%+409+997.6%Added
Smartleaf Asset Management LLC467$5.79K0.00%+171+57.8%Added
Bessemer Group Inc442$6.00K0.00%00.0%Unchanged
Wiser Advisor Group LLC500$6.33K0.01%00.0%Unchanged
Advisor Group Holdings, Inc.593$7.50K0.00%+37+6.7%Added
Lindbrook Capital, LLC633$8.01K0.00%+43+7.3%Added
US Bancorp691$8.74K0.00%−65−8.6%Reduced
Nisa Investment Advisors, LLC1,001$12.7K0.00%−4−0.4%Reduced
Harbor Capital Advisors, Inc.991$13.0K0.00%+160+19.3%Added
Public Employees Retirement System of Ohio1,257$15.9K0.00%+1,257New
Sterling Capital Management LLC1,390$17.6K0.00%−4,144−74.9%Reduced
GAMMA Investing LLC1,529$19.3K0.00%+939+159.2%Added
The PNC Financial Services Group, Inc.1,663$21.0K0.00%+32+2.0%Added
State of Wyoming2,592$32.8K0.00%−22,247−89.6%Reduced
CI Private Wealth, LLC28,220$33.6K0.00%+60.0%Added
Tower Research Capital LLC (TRC)2,682$33.9K0.00%−6,914−72.1%Reduced
Ameritas Investment Partners, Inc.4,583$58.0K0.00%00.0%Unchanged
Point72 (DIFC) Ltd5,693$72.0K0.01%+1,602+39.2%Added
Royal Bank of Canada5,987$76.0K0.00%−20,847−77.7%Reduced
Point72 Asset Management, L.P.7,300$92.3K0.00%+7,300New
Aquatic Capital Management LLC8,330$105.4K0.00%+8,330New
Police & Firemen's Retirement System of New Jersey9,202$116.4K0.00%+9,202New
Zurcher Kantonalbank (Zurich Cantonalbank)9,826$124.3K0.00%00.0%Unchanged
New York State Common Retirement Fund10,073$127.4K0.00%00.0%Unchanged
Bayesian Capital Management, LP10,076$127.5K0.02%+10,076New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys10,128$128.1K0.00%−12−0.1%Reduced
Cornerstone Investment Partners, LLC10,323$130.6K0.01%+8+0.1%Added
State of Tennessee, Treasury Department11,095$140.4K0.00%−486−4.2%Reduced
Oregon Public Employees Retirement Fund11,198$141.7K0.00%00.0%Unchanged
Aigen Investment Management, LP11,539$146.0K0.03%+11,539New
Axq Capital, LP12,112$153.2K0.07%+12,112New
Teachers Retirement System of the State of Kentucky12,301$155.0K0.00%00.0%Unchanged
Bank of Montreal12,357$156.3K0.00%+2,018+19.5%Added
KLP Kapitalforvaltning AS12,400$156.9K0.00%+12,400New
Franklin Resources Inc12,477$157.8K0.00%−13,372−51.7%Reduced
State Board of Administration of Florida Retirement System12,630$159.8K0.00%00.0%Unchanged
Freestone Grove Partners LP13,494$170.7K0.00%+13,494New
ProShare Advisors LLC13,756$174.0K0.00%+13,756New
Arizona State Retirement System13,768$174.2K0.00%+745+5.7%Added
Amalgamated Bank13,940$176.0K0.00%+682+5.1%Added
KLCM Advisors, Inc.14,000$177.1K0.02%00.0%Unchanged
Voya Investment Management LLC14,115$178.6K0.00%−22,682−61.6%Reduced
Mraz, Amerine & Associates, Inc.14,900$188.5K0.03%−700−4.5%Reduced
Maryland State Retirement & Pension System15,927$201.5K0.00%+15,927New
Group One Trading, L.P.16,116$203.9K0.01%+6,352+65.1%Added
Comerica Bank16,296$206.1K0.00%−536−3.2%Reduced
Manufacturers Life Insurance Company, The16,351$206.8K0.00%−463−2.8%Reduced
AQR Capital Management LLC17,837$225.6K0.00%+2,585+16.9%Added
Yousif Capital Management, LLC18,075$228.6K0.00%−165−0.9%Reduced
Oxford Asset Management LLP18,317$231.7K0.10%+18,317New
Janus Henderson Group PLC19,792$250.3K0.00%00.0%Unchanged
Two Sigma Advisers, LP21,100$266.9K0.00%+21,100New
Creative Planning21,210$268.3K0.00%+7,305+52.5%Added
Gator Capital Management, LLC21,435$271.2K0.10%−50,883−70.4%Reduced
Amundi24,217$280.7K0.00%+16,752+224.4%Added
Cresset Asset Management, LLC22,563$285.4K0.00%−2,106−8.5%Reduced
Louisiana State Employees Retirement System22,900$289.7K0.01%00.0%Unchanged
Ensign Peak Advisors, Inc24,133$305.3K0.00%00.0%Unchanged
Corebridge Financial, Inc.24,304$307.4K0.00%−762−3.0%Reduced
Illinois Municipal Retirement Fund24,988$316.1K0.00%−1,214−4.6%Reduced
Mirae Asset Global ETFs Holdings Ltd.25,807$326.5K0.00%+1,958+8.2%Added
Fox Run Management, L.L.C.26,817$339.2K0.06%−25,918−49.1%Reduced
MetLife Investment Management26,838$339.5K0.00%+2,269+9.2%Added
State of Alaska, Department of Revenue26,912$340.0K0.00%−160−0.6%Reduced
SEI Investments Co27,994$354.1K0.00%−53−0.2%Reduced
XTX Topco Ltd28,060$355.0K0.03%+12,680+82.4%Added
PDT Partners, LLC28,185$356.5K0.03%−35,197−55.5%Reduced
Wolverine Trading, LLC28,752$356.8K0.01%+28,752New
IMC-Chicago, LLC30,316$383.5K0.01%−1,108−3.5%Reduced
Centiva Capital, LP35,111$444.2K0.02%−9,826−21.9%Reduced
HighTower Advisors, LLC35,422$448.1K0.00%−1,171−3.2%Reduced