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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, Q2 2023

Institutional positions in Octave Specialty Group Inc as of Jun 30, 2023. 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
160
0 vs. Q1 2023
Shares held
37.2M
−1.63M (−4.2%) vs. Q1 2023
Total value
$529.6M
−$66.6M (−11.2%) vs. Q1 2023
New holders
22
48 more added
Sold out
22
56 more reduced

Compare with Q1 2023: 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 holdersQ2 2023: 160 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 heldQ2 2023: $529.6M
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, Q2 2023

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q1 2023.

Institutions holding OSG in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Verition Fund Management LLC56,871$809.8K0.01%−7,855−12.1%Reduced
Citadel Advisors LLC60,089$855.7K0.00%−8,479−12.4%Reduced
LPL Financial LLC63,022$897.4K0.00%+3,863+6.5%Added
Bank of America Corp70,340$1.00M0.00%−20,019−22.2%Reduced
Gsa Capital Partners LLP72,571$1.03M0.10%+55,371+321.9%Added
Healthcare of Ontario Pension Plan Trust Fund77,600$1.11M0.00%−234,125−75.1%Reduced
Voloridge Investment Management, LLC82,582$1.18M0.01%−32,529−28.3%Reduced
Simplex Trading, LLC83,985$1.20M0.05%−37,620−30.9%Reduced
Assetmark, Inc85,871$1.22M0.00%+4,916+6.1%Added
Walleye Trading LLC91,934$1.31M0.07%−20,928−18.5%Reduced
Norges Bank93,400$1.33M0.00%−90,600−49.2%Reduced
Credit Suisse AG96,680$1.38M0.00%+30,821+46.8%Added
Swiss National Bank98,600$1.40M0.00%+1,600+1.6%Added
Qube Research & Technologies Ltd108,556$1.55M0.01%−1,621−1.5%Reduced
Russell Investments Group, Ltd.113,975$1.62M0.00%−20,165−15.0%Reduced
Empowered Funds, LLC117,822$1.68M0.06%+117,822New
EA Series Trust117,822$1.68M0.06%+117,822New
Brandywine Global Investment Management, LLC118,708$1.69M0.01%+8,626+7.8%Added
Legal & General Group Plc124,240$1.77M0.00%+15,571+14.3%Added
Gendell Jeffrey L130,296$1.86M0.14%−10,000−7.1%Reduced
JPMorgan Chase & Co136,106$1.94M0.00%−687,344−83.5%Reduced
Gator Capital Management, LLC140,935$2.01M1.41%00.0%Unchanged
Rhumbline Advisers148,532$2.12M0.00%+916+0.6%Added
Public Sector Pension Investment Board152,447$2.17M0.02%+1,353+0.9%Added
Wolverine Trading, LLC155,878$2.17M0.03%+155,878New
Ameriprise Financial Inc164,168$2.34M0.00%−82,839−33.5%Reduced
National Asset Management, Inc.165,988$2.36M0.05%+165,988New
Wells Fargo & Company179,753$2.56M0.00%+8,204+4.8%Added
Two Seas Capital LP187,568$2.67M0.58%00.0%Unchanged
Harbor Advisors LLC196,382$2.80M0.59%00.0%Unchanged
Prudential Financial Inc216,062$3.08M0.00%+139,640+182.7%Added
Renaissance Technologies LLC226,344$3.22M0.00%+144,500+176.6%Added
HSBC Holdings PLC239,819$3.33M0.00%−1080.0%Reduced
Voya Investment Management LLC241,202$3.43M0.00%+113,614+89.0%Added
Jupiter Asset Management Ltd248,010$3.53M0.04%+248,010New
Allianz Asset Management GmbH257,865$3.67M0.01%+27,062+11.7%Added
Susquehanna International Group, LLP267,229$3.81M0.01%+196,955+280.3%Added
Principal Financial Group Inc271,403$3.86M0.00%−665−0.2%Reduced
D. E. Shaw & Co., Inc.330,069$4.70M0.01%+19,243+6.2%Added
American Century Companies Inc354,487$5.05M0.00%+68,365+23.9%Added
Bridgeway Capital Management, LLC367,822$5.24M0.13%+44,092+13.6%Added
Goldman Sachs Group Inc378,443$5.39M0.00%−159,130−29.6%Reduced
Bank of New York Mellon Corp476,086$6.78M0.00%+22,855+5.0%Added
Northern Trust Corp501,667$7.14M0.00%+7,703+1.6%Added
Deutsche Bank AG510,643$7.27M0.00%+124,507+32.2%Added
Nuveen Asset Management, LLC569,209$8.11M0.00%−152,293−21.1%Reduced
Charles Schwab Investment Management Inc625,618$8.91M0.00%−46,905−7.0%Reduced
AQR Capital Management LLC689,371$9.82M0.02%+105,930+18.2%Added
Arrowstreet Capital, Limited Partnership795,682$11.3M0.01%−117,983−12.9%Reduced
Bracebridge Capital, LLC799,234$11.4M9.07%00.0%Unchanged
Morgan Stanley821,640$11.7M0.00%−203,254−19.8%Reduced
Invesco Ltd.835,927$11.9M0.00%+367,978+78.6%Added
Geode Capital Management, LLC872,691$12.4M0.00%+34,761+4.1%Added
Boussard & Gavaudan Investment Management LLP1,390,488$19.3M1.85%−39,303−2.7%Reduced
State Street Corp1,534,245$21.8M0.00%−220,627−12.6%Reduced
FMR LLC1,994,156$28.4M0.00%+1,524+0.1%Added
Dimensional Fund Advisors LP2,171,341$30.9M0.01%+480,450+28.4%Added
Repertoire Partners LP2,242,553$31.9M34.11%−3,559−0.2%Reduced
Vanguard Group Inc4,959,488$70.6M0.00%−235,670−4.5%Reduced
BlackRock Inc.6,834,350$97.3M0.00%+4250.0%Added
Jacobs Levy Equity Management, Inc0$00.00%−275,414−100.0%Sold out
Hillsdale Investment Management Inc.0$00.00%−257,100−100.0%Sold out
National Bank of Canada0$00.00%−80,000−100.0%Sold out
Winton Group Ltd0$00.00%−73,877−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−63,247−100.0%Sold out
Algert Global LLC0$00.00%−62,905−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−47,400−100.0%Sold out
Redwood Investment Management, LLC0$00.00%−40,000−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−28,244−100.0%Sold out
Trexquant Investment LP0$00.00%−24,408−100.0%Sold out
Virginia Retirement Systems Et Al0$00.00%−21,500−100.0%Sold out
SG Americas Securities, LLC0$00.00%−14,233−100.0%Sold out
Clear Harbor Asset Management, LLC0$00.00%−12,450−100.0%Sold out
Mackenzie Financial Corp0$00.00%−10,550−100.0%Sold out
Point72 Middle East FZE0$00.00%−3,306−100.0%Sold out
Quarry LP0$00.00%−2,660−100.0%Sold out
ICA Group Wealth Management, LLC0$00.00%−354−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−314−100.0%Sold out
Parallax Volatility Advisers, L.P.0$00.00%−99−100.0%Sold out
Graves-Light Private Wealth Management, Inc.0$00.00%−35−100.0%Sold out
Cutler Group LP0$00.00%−56−100.0%Sold out
Cerity Partners LLC0$00.00%−155−100.0%Sold out