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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
BlackRock Inc.6,834,350$97.3M0.00%+4250.0%Added
Vanguard Group Inc4,959,488$70.6M0.00%−235,670−4.5%Reduced
Repertoire Partners LP2,242,553$31.9M34.11%−3,559−0.2%Reduced
Dimensional Fund Advisors LP2,171,341$30.9M0.01%+480,450+28.4%Added
FMR LLC1,994,156$28.4M0.00%+1,524+0.1%Added
State Street Corp1,534,245$21.8M0.00%−220,627−12.6%Reduced
Boussard & Gavaudan Investment Management LLP1,390,488$19.3M1.85%−39,303−2.7%Reduced
Geode Capital Management, LLC872,691$12.4M0.00%+34,761+4.1%Added
Invesco Ltd.835,927$11.9M0.00%+367,978+78.6%Added
Morgan Stanley821,640$11.7M0.00%−203,254−19.8%Reduced
Bracebridge Capital, LLC799,234$11.4M9.07%00.0%Unchanged
Arrowstreet Capital, Limited Partnership795,682$11.3M0.01%−117,983−12.9%Reduced
AQR Capital Management LLC689,371$9.82M0.02%+105,930+18.2%Added
Charles Schwab Investment Management Inc625,618$8.91M0.00%−46,905−7.0%Reduced
Nuveen Asset Management, LLC569,209$8.11M0.00%−152,293−21.1%Reduced
Deutsche Bank AG510,643$7.27M0.00%+124,507+32.2%Added
Northern Trust Corp501,667$7.14M0.00%+7,703+1.6%Added
Bank of New York Mellon Corp476,086$6.78M0.00%+22,855+5.0%Added
Goldman Sachs Group Inc378,443$5.39M0.00%−159,130−29.6%Reduced
Bridgeway Capital Management, LLC367,822$5.24M0.13%+44,092+13.6%Added
American Century Companies Inc354,487$5.05M0.00%+68,365+23.9%Added
D. E. Shaw & Co., Inc.330,069$4.70M0.01%+19,243+6.2%Added
Principal Financial Group Inc271,403$3.86M0.00%−665−0.2%Reduced
Susquehanna International Group, LLP267,229$3.81M0.01%+196,955+280.3%Added
Allianz Asset Management GmbH257,865$3.67M0.01%+27,062+11.7%Added
Jupiter Asset Management Ltd248,010$3.53M0.04%+248,010New
Voya Investment Management LLC241,202$3.43M0.00%+113,614+89.0%Added
HSBC Holdings PLC239,819$3.33M0.00%−1080.0%Reduced
Renaissance Technologies LLC226,344$3.22M0.00%+144,500+176.6%Added
Prudential Financial Inc216,062$3.08M0.00%+139,640+182.7%Added
Harbor Advisors LLC196,382$2.80M0.59%00.0%Unchanged
Two Seas Capital LP187,568$2.67M0.58%00.0%Unchanged
Wells Fargo & Company179,753$2.56M0.00%+8,204+4.8%Added
National Asset Management, Inc.165,988$2.36M0.05%+165,988New
Ameriprise Financial Inc164,168$2.34M0.00%−82,839−33.5%Reduced
Wolverine Trading, LLC155,878$2.17M0.03%+155,878New
Public Sector Pension Investment Board152,447$2.17M0.02%+1,353+0.9%Added
Rhumbline Advisers148,532$2.12M0.00%+916+0.6%Added
Gator Capital Management, LLC140,935$2.01M1.41%00.0%Unchanged
JPMorgan Chase & Co136,106$1.94M0.00%−687,344−83.5%Reduced
Gendell Jeffrey L130,296$1.86M0.14%−10,000−7.1%Reduced
Legal & General Group Plc124,240$1.77M0.00%+15,571+14.3%Added
Brandywine Global Investment Management, LLC118,708$1.69M0.01%+8,626+7.8%Added
Empowered Funds, LLC117,822$1.68M0.06%+117,822New
EA Series Trust117,822$1.68M0.06%+117,822New
Russell Investments Group, Ltd.113,975$1.62M0.00%−20,165−15.0%Reduced
Qube Research & Technologies Ltd108,556$1.55M0.01%−1,621−1.5%Reduced
Swiss National Bank98,600$1.40M0.00%+1,600+1.6%Added
Credit Suisse AG96,680$1.38M0.00%+30,821+46.8%Added
Norges Bank93,400$1.33M0.00%−90,600−49.2%Reduced
Walleye Trading LLC91,934$1.31M0.07%−20,928−18.5%Reduced
Assetmark, Inc85,871$1.22M0.00%+4,916+6.1%Added
Simplex Trading, LLC83,985$1.20M0.05%−37,620−30.9%Reduced
Voloridge Investment Management, LLC82,582$1.18M0.01%−32,529−28.3%Reduced
Healthcare of Ontario Pension Plan Trust Fund77,600$1.11M0.00%−234,125−75.1%Reduced
Gsa Capital Partners LLP72,571$1.03M0.10%+55,371+321.9%Added
Bank of America Corp70,340$1.00M0.00%−20,019−22.2%Reduced
LPL Financial LLC63,022$897.4K0.00%+3,863+6.5%Added
Citadel Advisors LLC60,089$855.7K0.00%−8,479−12.4%Reduced
Verition Fund Management LLC56,871$809.8K0.01%−7,855−12.1%Reduced
California State Teachers Retirement System54,576$777.2K0.00%−1,391−2.5%Reduced
Jane Street Group, LLC54,414$774.9K0.00%+31,600+138.5%Added
UBS Asset Management Americas Inc49,017$758.8K0.00%00.0%Unchanged
Franklin Resources Inc53,147$756.8K0.00%+27,191+104.8%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys51,231$729.5K0.01%+3,615+7.6%Added
State of Tennessee, Treasury Department50,676$721.6K0.00%+35,394+231.6%Added
Exchange Traded Concepts, LLC49,073$698.8K0.02%00.0%Unchanged
New York State Teachers Retirement System48,734$694.0K0.00%+2,504+5.4%Added
Caxton Associates LP43,628$621.3K0.09%−77,214−63.9%Reduced
Thrivent Financial for Lutherans43,356$617.0K0.00%−44,458−50.6%Reduced
CWM Advisors, LLC41,652$593.1K0.07%+41,652New
Teacher Retirement System of Texas40,618$578.0K0.00%+40,618New
Alliancebernstein L.P.40,250$573.2K0.00%+8,940+28.6%Added
Citigroup Inc39,932$568.6K0.00%+12,732+46.8%Added
Texas Permanent School Fund39,593$563.8K0.01%−425−1.1%Reduced
Royce & Associates LP39,345$560.3K0.01%+6,527+19.9%Added
Great West Life Assurance Co38,297$545.0K0.00%−3,080−7.4%Reduced
UBS Group AG37,924$540.0K0.00%−801,344−95.5%Reduced
Man Group plc37,893$539.6K0.00%––
Price T Rowe Associates Inc34,515$492.0K0.00%+446+1.3%Added
Barclays PLC34,219$487.3K0.00%−7,919−18.8%Reduced
State of Alaska, Department of Revenue29,821$424.0K0.01%−974−3.2%Reduced
Marshall Wace, LLP28,430$404.8K0.00%+28,430New
Mraz, Amerine & Associates, Inc.27,030$384.9K0.09%00.0%Unchanged
Ensign Peak Advisors, Inc25,350$361.0K0.00%+10,650+72.4%Added
Wellington Management Group LLP24,839$353.7K0.00%00.0%Unchanged
MetLife Investment Management24,566$349.8K0.00%00.0%Unchanged
Yousif Capital Management, LLC24,119$343.5K0.00%−1,369−5.4%Reduced
Ci Investments Inc.24,109$343.0K0.00%+24,109New
Squarepoint Ops LLC23,951$341.1K0.00%+23,951New
Los Angeles Capital Management LLC23,931$340.8K0.00%−40,754−63.0%Reduced
American International Group, Inc.23,827$339.3K0.00%−387−1.6%Reduced
Louisiana State Employees Retirement System23,800$338.9K0.01%+2,800+13.3%Added
Truist Financial Corp23,709$337.6K0.00%−6,991−22.8%Reduced
Envestnet Asset Management Inc23,095$328.9K0.00%−266,468−92.0%Reduced
Cresset Asset Management, LLC22,368$318.5K0.00%+22,368New
Interval Partners, LP20,930$298.0K0.01%−8,000−27.7%Reduced
Janus Henderson Group PLC20,053$285.5K0.00%−23−0.1%Reduced
Mirae Asset Global Investments Co., Ltd.18,835$268.2K0.00%00.0%Unchanged
New York State Common Retirement Fund18,357$261.4K0.00%−8,321−31.2%Reduced