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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, Q3 2022

Institutional positions in Octave Specialty Group Inc as of Sep 30, 2022. 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
154
+13 vs. Q2 2022
Shares held
31.4M
−2.72M (−8.0%) vs. Q2 2022
Total value
$400.7M
+$14.1M (+3.7%) vs. Q2 2022
New holders
28
46 more added
Sold out
15
54 more reduced

Compare with Q2 2022: 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 holdersQ3 2022: 154 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 heldQ3 2022: $400.7M
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, Q3 2022

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q2 2022.

Institutions holding OSG in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.6,491,445$82.8M0.00%−188,588−2.8%Reduced
Vanguard Group Inc4,752,430$60.6M0.00%+241,449+5.4%Added
FMR LLC1,990,160$25.4M0.00%−70,100−3.4%Reduced
State Street Corp1,618,988$20.6M0.00%−22,129−1.3%Reduced
Dimensional Fund Advisors LP1,480,809$18.9M0.01%−81,148−5.2%Reduced
Repertoire Partners LP1,107,966$14.1M10.26%−88,100−7.4%Reduced
Boussard & Gavaudan Investment Management LLP952,957$12.3M1.74%−159,755−14.4%Reduced
Bracebridge Capital, LLC799,234$10.2M3.73%00.0%Unchanged
Geode Capital Management, LLC798,278$10.2M0.00%−2,961−0.4%Reduced
Goldman Sachs Group Inc692,557$8.83M0.00%−674,743−49.3%Reduced
Charles Schwab Investment Management Inc682,201$8.70M0.00%−11,055−1.6%Reduced
Barclays PLC589,573$7.52M0.01%−55,620−8.6%Reduced
CQS (US), LLC566,717$7.23M0.88%−840,528−59.7%Reduced
Northern Trust Corp490,282$6.25M0.00%−13,156−2.6%Reduced
Bank of New York Mellon Corp405,245$5.17M0.00%+4,715+1.2%Added
Gator Capital Management, LLC376,265$4.80M4.01%+38,779+11.5%Added
JPMorgan Chase & Co343,018$4.37M0.00%+309,574+925.6%Added
Morgan Stanley333,547$4.25M0.00%−98,801−22.9%Reduced
Two Seas Capital LP325,526$4.15M4.76%+57,069+21.3%Added
Nuveen Asset Management, LLC311,939$3.98M0.00%+142,403+84.0%Added
Principal Financial Group Inc277,046$3.53M0.00%−763−0.3%Reduced
Invesco Ltd.254,776$3.25M0.00%−10,661−4.0%Reduced
Harbor Advisors LLC251,382$3.21M0.86%00.0%Unchanged
HSBC Holdings PLC239,621$3.03M0.01%−3,028−1.2%Reduced
Bank of Montreal186,633$2.40M0.00%−46,309−19.9%Reduced
Ameriprise Financial Inc180,005$2.29M0.00%−111,674−38.3%Reduced
Wells Fargo & Company178,263$2.27M0.00%+1,699+1.0%Added
D. E. Shaw & Co., Inc.177,181$2.26M0.00%+43,839+32.9%Added
Deutsche Bank AG167,679$2.14M0.00%−456,737−73.1%Reduced
Citadel Advisors LLC165,712$2.11M0.00%−57,188−25.7%Reduced
BNP Paribas Arbitrage, SA140,316$1.79M0.00%+126,622+924.7%Added
Verition Fund Management LLC140,210$1.79M0.02%+15,102+12.1%Added
Rhumbline Advisers139,207$1.77M0.00%+4,820+3.6%Added
Interval Partners, LP138,542$1.77M0.10%−15,000−9.8%Reduced
Jane Street Group, LLC127,853$1.63M0.00%+38,990+43.9%Added
Algert Global LLC126,154$1.61M0.10%+30,635+32.1%Added
Cubist Systematic Strategies, LLC116,336$1.48M0.01%+106,074+1,033.7%Added
Legal & General Group Plc107,836$1.38M0.00%+1,199+1.1%Added
Swiss National Bank106,800$1.36M0.00%−2,700−2.5%Reduced
Walleye Trading LLC104,964$1.34M0.04%+104,964New
Russell Investments Group, Ltd.104,566$1.33M0.00%+104,566New
Healthcare of Ontario Pension Plan Trust Fund101,325$1.29M0.01%−5,675−5.3%Reduced
Simplex Trading, LLC97,854$1.25M0.05%+30,525+45.3%Added
Bank of America Corp86,904$1.11M0.00%−18,698−17.7%Reduced
Parallax Volatility Advisers, L.P.86,661$1.10M0.02%+86,661New
Graham Capital Management, L.P.82,846$1.06M0.05%−2,459−2.9%Reduced
Public Sector Pension Investment Board82,418$1.05M0.01%−958−1.1%Reduced
LPL Financial LLC80,033$1.02M0.00%+1,500+1.9%Added
Catalyst Capital Advisors LLC76,690$978.0K0.04%−20,500−21.1%Reduced
Caxton Associates LP66,314$846.0K0.15%+8,254+14.2%Added
Salzhauer Michael66,268$845.0K0.54%−64,793−49.4%Reduced
Jefferies Group LLC65,564$835.9K0.02%+65,564New
Quinn Opportunity Partners LLC65,280$832.3K0.10%−77,813−54.4%Reduced
Tudor Investment Corp Et Al64,878$827.0K0.02%+23,109+55.3%Added
Clear Harbor Asset Management, LLC64,400$821.0K0.11%−4,000−5.8%Reduced
Exchange Traded Concepts, LLC61,611$786.0K0.03%+7,485+13.8%Added
Renaissance Technologies LLC60,900$776.0K0.00%+60,900New
Credit Suisse AG59,580$759.0K0.00%+249+0.4%Added
Bluefin Capital Management, LLC57,070$728.0K0.08%+14,190+33.1%Added
California State Teachers Retirement System56,228$717.0K0.00%−2,827−4.8%Reduced
Great West Life Assurance Co51,181$652.0K0.00%+7,024+15.9%Added
Brandywine Global Investment Management, LLC50,119$639.0K0.01%+50,119New
New York State Teachers Retirement System47,630$607.0K0.00%+33,200+230.1%Added
Alpha Paradigm Partners, LLC47,386$604.0K0.26%+47,386New
UBS Asset Management Americas Inc47,005$599.3K0.00%−9,418−16.7%Reduced
Thrivent Financial for Lutherans46,479$593.0K0.00%+2,229+5.0%Added
Prudential Financial Inc45,072$575.0K0.00%−450−1.0%Reduced
Price T Rowe Associates Inc43,895$560.0K0.00%+835+1.9%Added
Schonfeld Strategic Advisors LLC42,500$542.0K0.00%+42,500New
State of Wisconsin Investment Board42,089$537.0K0.00%−48,186−53.4%Reduced
Alliancebernstein L.P.41,306$527.0K0.00%+10,647+34.7%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys40,967$522.0K0.01%−91−0.2%Reduced
Redwood Investment Management, LLC40,000$510.0K0.11%00.0%Unchanged
PDT Partners, LLC38,772$494.0K0.07%−19,608−33.6%Reduced
Yousif Capital Management, LLC36,748$469.0K0.01%−1,039−2.7%Reduced
Comerica Bank34,497$459.0K0.00%−4,230−10.9%Reduced
New York State Common Retirement Fund32,400$413.0K0.00%+3,389+11.7%Added
Texas Permanent School Fund32,179$410.0K0.01%−308−0.9%Reduced
State of Alaska, Department of Revenue31,129$396.0K0.01%−2,938−8.6%Reduced
Mraz, Amerine & Associates, Inc.30,530$389.0K0.10%+7,500+32.6%Added
Ensign Peak Advisors, Inc29,900$381.0K0.00%−10,000−25.1%Reduced
Gsa Capital Partners LLP27,012$344.0K0.05%+514+1.9%Added
American Century Companies Inc26,043$332.0K0.00%+5,781+28.5%Added
MetLife Investment Management24,566$313.2K0.00%00.0%Unchanged
American International Group, Inc.24,301$310.0K0.00%−471−1.9%Reduced
Trexquant Investment LP24,256$309.0K0.01%+24,256New
Millennium Management LLC24,081$307.0K0.00%+7,938+49.2%Added
HAP Trading, LLC23,145$295.0K0.04%+23,145New
Winton Group Ltd22,195$283.0K0.02%+22,195New
Louisiana State Employees Retirement System21,500$274.0K0.01%−300−1.4%Reduced
Citigroup Inc21,310$272.0K0.00%+1,184+5.9%Added
State Board of Administration of Florida Retirement System20,950$267.0K0.00%00.0%Unchanged
Amalgamated Bank20,314$259.0K0.00%00.0%Unchanged
Raymond James Financial Services Advisors, Inc.19,644$250.0K0.00%−5,100−20.6%Reduced
Mirae Asset Global Investments Co., Ltd.18,835$240.0K0.00%+5,780+44.3%Added
Maryland State Retirement & Pension System18,569$237.0K0.02%00.0%Unchanged
Caption Management, LLC18,421$235.0K0.04%+18,421New
State of Tennessee, Treasury Department18,242$233.0K0.00%+835+4.8%Added
Y-Intercept (Hong Kong) Ltd18,149$231.4K0.02%+18,149New
Voya Investment Management LLC17,976$229.2K0.00%00.0%Unchanged